G.F.W. Energy X, L.P.

SEC source: 0001104659-19-005882 · a4.xml · nonDerivative · entry 1

WHR Holdings, LLC · CIK 0001691549 · Director · 10% owner

WildHorse Investment Holdings, LLC · CIK 0001691550 · Director · 10% owner

NGP X US Holdings LP · CIK 0001606887 · Director · 10% owner

NGP X Holdings GP, L.L.C. · CIK 0001647719 · Director · 10% owner

NGP Natural Resources X, L.P. · CIK 0001521229 · Director · 10% owner

G.F.W. Energy X, L.P. · CIK 0001555496 · Director · 10% owner

GFW X, L.L.C. · CIK 0001555576 · Director · 10% owner

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · price: On February 1, 2019, pursuant to the Agreement and Plan of Merger dated as of October 29, 2018 (the "Merger Agreement"), by and among WildHorse Resource Development Corporation (the "Company"), Chesapeake Energy Corporation ("Chesapeake") and Coleburn Inc. ("Merger Sub"), as amended, Merger Sub merged with an into the Company (the "Merger"), with the Company surviving the Merger and continuing as a wholly-owned subsidiary of Chesapeake.

F2 · price: Pursuant to the Merger Agreement, each share of Company common stock issued and outstanding prior to the effective time of the Merger owned by the Reporting Person was converted at such time into the right to receive either (i) 5.336 shares of Chesapeake common stock and $3.00 in cash, or (ii) 5.989 shares of Chesapeake common stock, in each case, with cash in lieu for any fractional shares. The closing price per share of Chesapeake common stock on the day prior to the effective date of the Merger was $2.85.

F3 · balance_after: This form is jointly filed by WHR Holdings, LLC ("WildHorse Holdings"), WildHorse Investment Holdings, LLC ("WildHorse Investment Holdings"), NGP X US Holdings, L.P. ("NGP X US Holdings"), NGP X Holdings GP, L.L.C. ("NGP X Holdings GP"), NGP Natural Resources X, L.P. ("NGP X"), G.F.W. Energy X, L.P. ("GFW X"), GFW X, L.L.C. ("GFW X GP") and NGP Energy Capital Management, L.L.C. ("NGP ECM"). WildHorse Investment Holdings owns 100% of the capital interests in WildHorse Holdings and NGP X US Holdings owns 90.3% of WildHorse Investment Holdings, and certain members of the Company's management team own the remaining 9.7%. As a result, NGP X US Holdings may be deemed to indirectly beneficially own the shares held by WildHorse Holdings. NGP X US Holdings disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein.

F4 · balance_after: (Continued from Footnote 3) NGP X Holdings GP (the sole general partner of NGP X US Holdings), NGP X (the sole member of NGP X Holdings GP), GFW X (the sole general partner of NGP X) and GFW X GP (the sole general partner of GFW X) may each be deemed to share voting and dispositive power over the reported shares and therefore may also be deemed to be the beneficial owner of these shares. GFW X GP has delegated full power and authority to manage NGP X US Holdings to NGP ECM and accordingly, NGP ECM may be deemed to share voting and dispositive power over these shares and therefore may also be deemed to be the beneficial owner of these shares. Each of WildHorse Investment Holdings, NGP X US Holdings, NGP X Holdings GP, NGP X, GFW X, GFW X GP and NGP ECM disclaims beneficial ownership of the reported securities in excess of its pecuniary interest therein.

F5 · balance_after: Prior to the effective time of the Merger, WildHorse Holdings was party to a Stockholders' Agreement (the "Stockholders' Agreement"), pursuant to which, each of the parties thereto agreed, among other things, to cause the shares of Company common stock and any equity securities of the Company held by such party to be voted for the individuals properly designated by the parties to the Stockholders' Agreement for election to the Company's board of directors. As a result, the parties thereto may have been deemed to be members of a group holding over 10% of the outstanding common stock of the Company (the "Group") for the purposes of Section 13(d)(3) of the Exchange Act of 1934, as amended (the "Exchange Act").

F6 · balance_after: WildHorse Holdings disclaims beneficial ownership of the shares of Company common stock held by the members of the Group, except to the extent of its pecuniary interest therein, and this statement shall not be construed as an admission that WildHorse Holdings is or was the beneficial owner of any such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

F3 · ownership.direct: This form is jointly filed by WHR Holdings, LLC ("WildHorse Holdings"), WildHorse Investment Holdings, LLC ("WildHorse Investment Holdings"), NGP X US Holdings, L.P. ("NGP X US Holdings"), NGP X Holdings GP, L.L.C. ("NGP X Holdings GP"), NGP Natural Resources X, L.P. ("NGP X"), G.F.W. Energy X, L.P. ("GFW X"), GFW X, L.L.C. ("GFW X GP") and NGP Energy Capital Management, L.L.C. ("NGP ECM"). WildHorse Investment Holdings owns 100% of the capital interests in WildHorse Holdings and NGP X US Holdings owns 90.3% of WildHorse Investment Holdings, and certain members of the Company's management team own the remaining 9.7%. As a result, NGP X US Holdings may be deemed to indirectly beneficially own the shares held by WildHorse Holdings. NGP X US Holdings disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein.

F4 · ownership.direct: (Continued from Footnote 3) NGP X Holdings GP (the sole general partner of NGP X US Holdings), NGP X (the sole member of NGP X Holdings GP), GFW X (the sole general partner of NGP X) and GFW X GP (the sole general partner of GFW X) may each be deemed to share voting and dispositive power over the reported shares and therefore may also be deemed to be the beneficial owner of these shares. GFW X GP has delegated full power and authority to manage NGP X US Holdings to NGP ECM and accordingly, NGP ECM may be deemed to share voting and dispositive power over these shares and therefore may also be deemed to be the beneficial owner of these shares. Each of WildHorse Investment Holdings, NGP X US Holdings, NGP X Holdings GP, NGP X, GFW X, GFW X GP and NGP ECM disclaims beneficial ownership of the reported securities in excess of its pecuniary interest therein.

F5 · ownership.direct: Prior to the effective time of the Merger, WildHorse Holdings was party to a Stockholders' Agreement (the "Stockholders' Agreement"), pursuant to which, each of the parties thereto agreed, among other things, to cause the shares of Company common stock and any equity securities of the Company held by such party to be voted for the individuals properly designated by the parties to the Stockholders' Agreement for election to the Company's board of directors. As a result, the parties thereto may have been deemed to be members of a group holding over 10% of the outstanding common stock of the Company (the "Group") for the purposes of Section 13(d)(3) of the Exchange Act of 1934, as amended (the "Exchange Act").

F6 · ownership.direct: WildHorse Holdings disclaims beneficial ownership of the shares of Company common stock held by the members of the Group, except to the extent of its pecuniary interest therein, and this statement shall not be construed as an admission that WildHorse Holdings is or was the beneficial owner of any such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

SEC source: 0000899243-17-024582 · doc4.xml · derivative · entry 1

NGP Triangle Holdings, LLC · CIK 0001555517 · See Remarks

NGP Natural Resources X, L.P. · CIK 0001521229 · See Remarks

G.F.W. Energy X, L.P. · CIK 0001555496 · See Remarks

GFW X, L.L.C. · CIK 0001555576 · See Remarks

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,018,672 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_price: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.exercise_price: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08.On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.exercise_price: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · derivative.exercise_price: (Continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · derivative.exercise_price: (Continued from footnote 5) On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · derivative.exercise_price: (Continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F8 · kind: The issuance of the Convertible Notes to NGP Triangle and the payment of the interest thereon in kind were approved by the Board of Directors of Triangle. Accordingly, the transaction reported on this Form 4 is exempt from Section 16(b) pursuant to Rule 16b-3(d)(1) under the Securities Exchange Act of 1934 (the "Exchange Act"). The transaction reported on this Form 4 is also exempt pursuant to Rule 16a-9 under the Exchange Act.

F10 · kind: On October 19, 2017, pursuant to a privately negotiated transaction, NGP Triangle sold, transferred, conveyed and assigned $160,149,378.17 in aggregate principal amount of Convertible Notes, representing all of the Convertible Notes owned by NGP Triangle.

F1 · shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · shares: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · shares: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08.On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · shares: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · shares: (Continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · shares: (Continued from footnote 5) On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · shares: (Continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F10 · shares: On October 19, 2017, pursuant to a privately negotiated transaction, NGP Triangle sold, transferred, conveyed and assigned $160,149,378.17 in aggregate principal amount of Convertible Notes, representing all of the Convertible Notes owned by NGP Triangle.

F1 · price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · price: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · price: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08.On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · price: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · price: (Continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · price: (Continued from footnote 5) On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · price: (Continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F1 · derivative.exercise_date: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_date: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.exercise_date: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08.On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.exercise_date: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · derivative.exercise_date: (Continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · derivative.exercise_date: (Continued from footnote 5) On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · derivative.exercise_date: (Continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F9 · derivative.expiration_date: The Convertible Notes do not have an expiration date.

F1 · derivative.underlying_shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.underlying_shares: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.underlying_shares: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08.On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.underlying_shares: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · derivative.underlying_shares: (Continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · derivative.underlying_shares: (Continued from footnote 5) On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · derivative.underlying_shares: (Continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F10 · balance_after: On October 19, 2017, pursuant to a privately negotiated transaction, NGP Triangle sold, transferred, conveyed and assigned $160,149,378.17 in aggregate principal amount of Convertible Notes, representing all of the Convertible Notes owned by NGP Triangle.

SEC source: 0000899243-17-023384 · doc4.xml · derivative · entry 1

NGP Triangle Holdings, LLC · CIK 0001555517 · Director · 10% owner

NGP Natural Resources X, L.P. · CIK 0001521229 · 10% owner

G.F.W. Energy X, L.P. · CIK 0001555496 · 10% owner

GFW X, L.L.C. · CIK 0001555576 · 10% owner

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 160,149,378.17

Underlying: Common Stock · 535,780 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_price: (continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.exercise_price: (continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.exercise_price: (continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · derivative.exercise_price: (continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21.

F6 · derivative.exercise_price: (continued from footnote 5) On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · derivative.exercise_price: (continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F8 · kind: The issuance of the Convertible Notes to NGP Triangle and the payment of the interest thereon in kind were approved by the Board of Directors of Triangle. Accordingly, the transaction reported on this Form 4 is exempt from Section 16(b) pursuant to Rule 16b-3(d)(1) under the Securities Exchange Act of 1934 (the "Exchange Act"). The transaction reported on this Form 4 is also exempt pursuant to Rule 16a-9 under the Exchange Act.

F1 · shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · shares: (continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · shares: (continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · shares: (continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · shares: (continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21.

F6 · shares: (continued from footnote 5) On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · shares: (continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F1 · price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · price: (continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · price: (continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · price: (continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · price: (continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21.

F6 · price: (continued from footnote 5) On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · price: (continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F1 · derivative.exercise_date: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_date: (continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.exercise_date: (continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.exercise_date: (continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · derivative.exercise_date: (continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21.

F6 · derivative.exercise_date: (continued from footnote 5) On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · derivative.exercise_date: (continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F9 · derivative.expiration_date: The Convertible Notes do not have an expiration date.

F1 · derivative.underlying_shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.underlying_shares: (continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.underlying_shares: (continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.underlying_shares: (continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · derivative.underlying_shares: (continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21.

F6 · derivative.underlying_shares: (continued from footnote 5) On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · derivative.underlying_shares: (continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

F1 · balance_after: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · balance_after: (continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · balance_after: (continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · balance_after: (continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · balance_after: (continued from footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21.

F6 · balance_after: (continued from footnote 5) On March 31, 2017, accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly.

F7 · balance_after: (continued from footnote 6) On June 30, 2017, accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. On September 30, 2017, accrued interest in the amount of $4,286,236.40 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $160,149,378.17. Based on an initial conversion price of $8.00 per share, $4,286,236.40 in principal amount of Convertible Notes would be convertible into 535,780 shares of Common Stock and $160,149,378.17 in principal amount of Convertible Notes would be convertible into 20,018,672 shares of Common Stock.

SEC source: 0000899243-17-018036 · doc4.xml · derivative · entry 1

NGP Triangle Holdings, LLC · CIK 0001555517 · Director · 10% owner

NGP Natural Resources X, L.P. · CIK 0001521229 · 10% owner

G.F.W. Energy X, L.P. · CIK 0001555496 · 10% owner

GFW X, L.L.C. · CIK 0001555576 · 10% owner

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 155,863,141.77

Underlying: Common Stock · 567,910 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes. Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017,

F2 · derivative.exercise_price: (Continued From Footnote 1)Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes,

F3 · derivative.exercise_price: (Continued From Footnote 2)resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014,

F4 · derivative.exercise_price: (Continued From Footnote 3)accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016,

F5 · derivative.exercise_price: (Continued From Footnote 4)accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · derivative.exercise_price: (Continued From Footnote 5)accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly. On June 30, 2017,

F7 · derivative.exercise_price: (Continued From Footnote 6)accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. Based on an initial conversion price of $8.00 per share, $4,543,277.08 in principal amount of Convertible Notes would be convertible into 567,910 shares of Common Stock and $155,863,141.77 in principal amount of Convertible Notes would be convertible into 19,482,893 shares of Common Stock.

F8 · kind: The issuance of the Convertible Notes to NGP Triangle and the payment of the interest thereon in kind were approved by the Board of Directors of Triangle. Accordingly, the transaction reported on this Form 4 is exempt from Section 16(b) pursuant to Rule 16b-3(d)(1) under the Securities Exchange Act of 1934 (the "Exchange Act"). The transaction reported on this Form 4 is also exempt pursuant to Rule 16a-9 under the Exchange Act.

F1 · shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes. Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017,

F2 · shares: (Continued From Footnote 1)Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes,

F3 · shares: (Continued From Footnote 2)resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014,

F4 · shares: (Continued From Footnote 3)accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016,

F5 · shares: (Continued From Footnote 4)accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · shares: (Continued From Footnote 5)accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly. On June 30, 2017,

F7 · shares: (Continued From Footnote 6)accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. Based on an initial conversion price of $8.00 per share, $4,543,277.08 in principal amount of Convertible Notes would be convertible into 567,910 shares of Common Stock and $155,863,141.77 in principal amount of Convertible Notes would be convertible into 19,482,893 shares of Common Stock.

F1 · price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes. Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017,

F2 · price: (Continued From Footnote 1)Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes,

F3 · price: (Continued From Footnote 2)resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014,

F4 · price: (Continued From Footnote 3)accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016,

F5 · price: (Continued From Footnote 4)accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · price: (Continued From Footnote 5)accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly. On June 30, 2017,

F7 · price: (Continued From Footnote 6)accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. Based on an initial conversion price of $8.00 per share, $4,543,277.08 in principal amount of Convertible Notes would be convertible into 567,910 shares of Common Stock and $155,863,141.77 in principal amount of Convertible Notes would be convertible into 19,482,893 shares of Common Stock.

F1 · derivative.exercise_date: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes. Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017,

F2 · derivative.exercise_date: (Continued From Footnote 1)Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes,

F3 · derivative.exercise_date: (Continued From Footnote 2)resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014,

F4 · derivative.exercise_date: (Continued From Footnote 3)accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016,

F5 · derivative.exercise_date: (Continued From Footnote 4)accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · derivative.exercise_date: (Continued From Footnote 5)accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly. On June 30, 2017,

F7 · derivative.exercise_date: (Continued From Footnote 6)accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. Based on an initial conversion price of $8.00 per share, $4,543,277.08 in principal amount of Convertible Notes would be convertible into 567,910 shares of Common Stock and $155,863,141.77 in principal amount of Convertible Notes would be convertible into 19,482,893 shares of Common Stock.

F9 · derivative.expiration_date: The Convertible Notes do not have an expiration date.

F1 · derivative.underlying_shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes. Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017,

F2 · derivative.underlying_shares: (Continued From Footnote 1)Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes,

F3 · derivative.underlying_shares: (Continued From Footnote 2)resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014,

F4 · derivative.underlying_shares: (Continued From Footnote 3)accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016,

F5 · derivative.underlying_shares: (Continued From Footnote 4)accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · derivative.underlying_shares: (Continued From Footnote 5)accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly. On June 30, 2017,

F7 · derivative.underlying_shares: (Continued From Footnote 6)accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. Based on an initial conversion price of $8.00 per share, $4,543,277.08 in principal amount of Convertible Notes would be convertible into 567,910 shares of Common Stock and $155,863,141.77 in principal amount of Convertible Notes would be convertible into 19,482,893 shares of Common Stock.

F1 · balance_after: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes. Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017,

F2 · balance_after: (Continued From Footnote 1)Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes,

F3 · balance_after: (Continued From Footnote 2)resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014,

F4 · balance_after: (Continued From Footnote 3)accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016,

F5 · balance_after: (Continued From Footnote 4)accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · balance_after: (Continued From Footnote 5)accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Pursuant to the terms of the Convertible Notes, an "Event of Default" occurred on May 17, 2017 and the outstanding balance of the Convertible Notes of $153,841,831.05 became due and payable, which amount included $987,782.45 of interest that had accrued on the Convertible Notes from March 31, 2017 through May 17, 2017 and $1,534,183.91 of additional interest pursuant to the terms of the Convertible Notes. Following such Event of Default and for so long as it continues, the Convertible Notes will accrue interest at a rate of 11% per annum, compounded quarterly. On June 30, 2017,

F7 · balance_after: (Continued From Footnote 6)accrued interest in the amount of $2,021,310.72 for the period from May 17, 2017 through June 30, 2017 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $155,863,141.77. Based on an initial conversion price of $8.00 per share, $4,543,277.08 in principal amount of Convertible Notes would be convertible into 567,910 shares of Common Stock and $155,863,141.77 in principal amount of Convertible Notes would be convertible into 19,482,893 shares of Common Stock.

SEC source: 0000899243-17-009126 · doc4.xml · derivative · entry 1

NGP Triangle Holdings, LLC · CIK 0001555517 · Director · 10% owner

NGP Natural Resources X, L.P. · CIK 0001521229 · 10% owner

G.F.W. Energy X, L.P. · CIK 0001555496 · 10% owner

GFW X, L.L.C. · CIK 0001555576 · 10% owner

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151,319,864.69

Underlying: Common Stock · 233,518 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_price: (continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes,

F3 · derivative.exercise_price: (continued from Footnote 2) resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34

F4 · derivative.exercise_price: (continued from Footnote 3) was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015,

F5 · derivative.exercise_price: (continued from Footnote 4) accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · derivative.exercise_price: (continued from Footnote 5) accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Based on an initial conversion price of $8.00 per share, $1,868,146.48 in principal amount of Convertible Notes would be convertible into 233,518 shares of Common Stock and $151,319,864.69 in principal amount of Convertible Notes would be convertible into 18,914,983 shares of Common Stock.

F7 · kind: The issuance of the Convertible Notes to NGP Triangle and the payment of the interest thereon in kind were approved by the Board of Directors of Triangle. Accordingly, the transaction reported on this Form 4 is exempt from Section 16(b) pursuant to Rule 16b-3(d)(1) under the Securities Exchange Act of 1934 (the "Exchange Act"). The transaction reported on this Form 4 is also exempt pursuant to Rule 16a-9 under the Exchange Act.

F1 · shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · shares: (continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes,

F3 · shares: (continued from Footnote 2) resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34

F4 · shares: (continued from Footnote 3) was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015,

F5 · shares: (continued from Footnote 4) accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · shares: (continued from Footnote 5) accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Based on an initial conversion price of $8.00 per share, $1,868,146.48 in principal amount of Convertible Notes would be convertible into 233,518 shares of Common Stock and $151,319,864.69 in principal amount of Convertible Notes would be convertible into 18,914,983 shares of Common Stock.

F1 · price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · price: (continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes,

F3 · price: (continued from Footnote 2) resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34

F4 · price: (continued from Footnote 3) was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015,

F5 · price: (continued from Footnote 4) accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · price: (continued from Footnote 5) accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Based on an initial conversion price of $8.00 per share, $1,868,146.48 in principal amount of Convertible Notes would be convertible into 233,518 shares of Common Stock and $151,319,864.69 in principal amount of Convertible Notes would be convertible into 18,914,983 shares of Common Stock.

F1 · derivative.exercise_date: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_date: (continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes,

F3 · derivative.exercise_date: (continued from Footnote 2) resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34

F4 · derivative.exercise_date: (continued from Footnote 3) was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015,

F5 · derivative.exercise_date: (continued from Footnote 4) accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · derivative.exercise_date: (continued from Footnote 5) accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Based on an initial conversion price of $8.00 per share, $1,868,146.48 in principal amount of Convertible Notes would be convertible into 233,518 shares of Common Stock and $151,319,864.69 in principal amount of Convertible Notes would be convertible into 18,914,983 shares of Common Stock.

F8 · derivative.expiration_date: The Convertible Notes do not have an expiration date.

F1 · derivative.underlying_shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.underlying_shares: (continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes,

F3 · derivative.underlying_shares: (continued from Footnote 2) resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34

F4 · derivative.underlying_shares: (continued from Footnote 3) was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015,

F5 · derivative.underlying_shares: (continued from Footnote 4) accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · derivative.underlying_shares: (continued from Footnote 5) accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Based on an initial conversion price of $8.00 per share, $1,868,146.48 in principal amount of Convertible Notes would be convertible into 233,518 shares of Common Stock and $151,319,864.69 in principal amount of Convertible Notes would be convertible into 18,914,983 shares of Common Stock.

F1 · balance_after: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · balance_after: (continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25. On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes,

F3 · balance_after: (continued from Footnote 2) resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91. On September 30, 2014, accrued interest in the amount of $1,649,911.34

F4 · balance_after: (continued from Footnote 3) was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015,

F5 · balance_after: (continued from Footnote 4) accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. On March 31, 2017,

F6 · balance_after: (continued from Footnote 5) accrued interest in the amount of $1,868,146.48 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $151,319,864.69. Based on an initial conversion price of $8.00 per share, $1,868,146.48 in principal amount of Convertible Notes would be convertible into 233,518 shares of Common Stock and $151,319,864.69 in principal amount of Convertible Notes would be convertible into 18,914,983 shares of Common Stock.

SEC source: 0000899243-17-000246 · doc4.xml · derivative · entry 1

NGP Triangle Holdings, LLC · CIK 0001555517 · Director · 10% owner

NGP Natural Resources X, L.P. · CIK 0001521229 · 10% owner

G.F.W. Energy X, L.P. · CIK 0001555496 · 10% owner

GFW X, L.L.C. · CIK 0001555576 · 10% owner

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Stock · 230,635 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_price: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.exercise_price: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.exercise_price: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02.

F5 · derivative.exercise_price: (Continued from footnote 4) On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13.

F6 · derivative.exercise_price: (Continued from footnote 5) On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. Based on an initial conversion price of $8.00 per share, $1,845,082.94 in principal amount of Convertible Notes would be convertible into 230,635 shares of Common Stock and $149,451,718.21 in principal amount of Convertible Notes would be convertible into 18,681,465 shares of Common Stock.

F7 · kind: The issuance of the Convertible Notes to NGP Triangle and the payment of the interest thereon in kind were approved by the Board of Directors of Triangle. Accordingly, the transaction reported on this Form 4 is exempt from Section 16(b) pursuant to Rule 16b-3(d)(1) under the Securities Exchange Act of 1934 (the "Exchange Act"). The transaction reported on this Form 4 is also exempt pursuant to Rule 16a-9 under the Exchange Act.

F1 · reported_value: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · reported_value: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · reported_value: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · reported_value: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02.

F5 · reported_value: (Continued from footnote 4) On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13.

F6 · reported_value: (Continued from footnote 5) On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. Based on an initial conversion price of $8.00 per share, $1,845,082.94 in principal amount of Convertible Notes would be convertible into 230,635 shares of Common Stock and $149,451,718.21 in principal amount of Convertible Notes would be convertible into 18,681,465 shares of Common Stock.

F1 · price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · price: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · price: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · price: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02.

F5 · price: (Continued from footnote 4) On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13.

F6 · price: (Continued from footnote 5) On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. Based on an initial conversion price of $8.00 per share, $1,845,082.94 in principal amount of Convertible Notes would be convertible into 230,635 shares of Common Stock and $149,451,718.21 in principal amount of Convertible Notes would be convertible into 18,681,465 shares of Common Stock.

F1 · derivative.exercise_date: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_date: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.exercise_date: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.exercise_date: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02.

F5 · derivative.exercise_date: (Continued from footnote 4) On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13.

F6 · derivative.exercise_date: (Continued from footnote 5) On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. Based on an initial conversion price of $8.00 per share, $1,845,082.94 in principal amount of Convertible Notes would be convertible into 230,635 shares of Common Stock and $149,451,718.21 in principal amount of Convertible Notes would be convertible into 18,681,465 shares of Common Stock.

F8 · derivative.expiration_date: The Convertible Notes do not have an expiration date.

F1 · derivative.underlying_shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.underlying_shares: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.underlying_shares: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.underlying_shares: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02.

F5 · derivative.underlying_shares: (Continued from footnote 4) On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13.

F6 · derivative.underlying_shares: (Continued from footnote 5) On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. Based on an initial conversion price of $8.00 per share, $1,845,082.94 in principal amount of Convertible Notes would be convertible into 230,635 shares of Common Stock and $149,451,718.21 in principal amount of Convertible Notes would be convertible into 18,681,465 shares of Common Stock.

F1 · valueOwnedAfter: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · valueOwnedAfter: (Continued from footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · valueOwnedAfter: (Continued from footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · valueOwnedAfter: (Continued from footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02.

F5 · valueOwnedAfter: (Continued from footnote 4) On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64. On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13.

F6 · valueOwnedAfter: (Continued from footnote 5) On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27. On December 31, 2016, accrued interest in the amount of $1,845,082.94 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $149,451,718.21. Based on an initial conversion price of $8.00 per share, $1,845,082.94 in principal amount of Convertible Notes would be convertible into 230,635 shares of Common Stock and $149,451,718.21 in principal amount of Convertible Notes would be convertible into 18,681,465 shares of Common Stock.

SEC source: 0000899243-16-035977 · doc4.xml · nonDerivative · entry 1

WHR Holdings, LLC · CIK 0001691549 · Director · 10% owner

WildHorse Investment Holdings, LLC · CIK 0001691550 · 10% owner

NGP X US Holdings LP · CIK 0001606887 · 10% owner

NGP X Holdings GP, L.L.C. · CIK 0001647719 · 10% owner

NGP Natural Resources X, L.P. · CIK 0001521229 · 10% owner

G.F.W. Energy X, L.P. · CIK 0001555496 · 10% owner

GFW X, L.L.C. · CIK 0001555576 · 10% owner

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,200,084

F1 · shares: On December 12, 2016, WHR Holdings, LLC ("WildHorse Holdings") entered into the Master Contribution Agreement (the "Master Contribution Agreement"), pursuant to which, immediately prior to the closing of WildHorse Resource Development Corporation's (the "Issuer") initial public offering, certain of the parties thereto, including WildHorse Holdings, contributed their membership interest in certain entities to the Issuer in exchange for shares of the Issuer's common stock, par value $0.01 per share ("Common Stock"). Pursuant to the Master Contribution Agreement, WildHorse Holdings received 21,200,084 shares of Common Stock.

F1 · price: On December 12, 2016, WHR Holdings, LLC ("WildHorse Holdings") entered into the Master Contribution Agreement (the "Master Contribution Agreement"), pursuant to which, immediately prior to the closing of WildHorse Resource Development Corporation's (the "Issuer") initial public offering, certain of the parties thereto, including WildHorse Holdings, contributed their membership interest in certain entities to the Issuer in exchange for shares of the Issuer's common stock, par value $0.01 per share ("Common Stock"). Pursuant to the Master Contribution Agreement, WildHorse Holdings received 21,200,084 shares of Common Stock.

F2 · balance_after: This form is jointly filed by WildHorse Holdings, WildHorse Investment Holdings, LLC ("WildHorse Investment Holdings"), NGP X US Holdings, L.P. ("NGP X US Holdings"), NGP X Holdings GP, L.L.C. ("NGP X Holdings GP"), NGP Natural Resources X, L.P. ("NGP X"), G.F.W. Energy X, L.P. ("GFW X"), GFW X, L.L.C. ("GFW X GP") and NGP Energy Capital Management, L.L.C. ("NGP ECM"). WildHorse Investment Holdings owns 100% of the capital interests in WildHorse Holdings and NGP X US Holdings owns 90.3% of WildHorse Investment Holdings, and certain members of the Issuer's management team own the remaining 9.7%. As a result, NGP X US Holdings may be deemed to indirectly beneficially own the shares held by WildHorse Holdings. NGP X US Holdings disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein.

F3 · balance_after: (Continued from Footnote 2) NGP X Holdings GP (the sole general partner of NGP X US Holdings), NGP X (the sole member of NGP X Holdings GP), GFW X (the sole general partner of NGP X) and GFW X GP (the sole general partner of GFW X) may each be deemed to share voting and dispositive power over the reported shares and therefore may also be deemed to be the beneficial owner of these shares. GFW X GP has delegated full power and authority to manage NGP X US Holdings to NGP ECM and accordingly, NGP ECM may be deemed to share voting and dispositive power over these shares and therefore may also be deemed to be the beneficial owner of these shares. Each of WildHorse Investment Holdings, NGP X US Holdings, NGP X Holdings GP, NGP X, GFW X, GFW X GP and NGP ECM disclaims beneficial ownership of the reported securities in excess of its pecuniary interest therein.

F4 · balance_after: On December 19, 2016, WildHorse Holdings entered into the Stockholders' Agreement (the "Stockholders' Agreement"), pursuant to which, each of the parties thereto agreed, among other things, to cause the shares of Common Stock and any equity securities of the Issuer held by such party to be voted for the individuals properly designated by the parties to the Stockholders' Agreement for election to the Issuer's board of directors. As a result, the parties thereto may be deemed to be members of a group holding over 10% of the outstanding Common Stock of the Issuer (the "Group") for the purposes of Section 13(d)(3) of the Exchange Act of 1934, as amended (the "Exchange Act").

F5 · balance_after: WildHorse Holdings disclaims beneficial ownership of the shares of Common Stock held by the members of the Group, except to the extent of its pecuniary interest therein, and this statement shall not be construed as an admission that WildHorse Holdings is the beneficial owner of any such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

F2 · ownership.direct: This form is jointly filed by WildHorse Holdings, WildHorse Investment Holdings, LLC ("WildHorse Investment Holdings"), NGP X US Holdings, L.P. ("NGP X US Holdings"), NGP X Holdings GP, L.L.C. ("NGP X Holdings GP"), NGP Natural Resources X, L.P. ("NGP X"), G.F.W. Energy X, L.P. ("GFW X"), GFW X, L.L.C. ("GFW X GP") and NGP Energy Capital Management, L.L.C. ("NGP ECM"). WildHorse Investment Holdings owns 100% of the capital interests in WildHorse Holdings and NGP X US Holdings owns 90.3% of WildHorse Investment Holdings, and certain members of the Issuer's management team own the remaining 9.7%. As a result, NGP X US Holdings may be deemed to indirectly beneficially own the shares held by WildHorse Holdings. NGP X US Holdings disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein.

F3 · ownership.direct: (Continued from Footnote 2) NGP X Holdings GP (the sole general partner of NGP X US Holdings), NGP X (the sole member of NGP X Holdings GP), GFW X (the sole general partner of NGP X) and GFW X GP (the sole general partner of GFW X) may each be deemed to share voting and dispositive power over the reported shares and therefore may also be deemed to be the beneficial owner of these shares. GFW X GP has delegated full power and authority to manage NGP X US Holdings to NGP ECM and accordingly, NGP ECM may be deemed to share voting and dispositive power over these shares and therefore may also be deemed to be the beneficial owner of these shares. Each of WildHorse Investment Holdings, NGP X US Holdings, NGP X Holdings GP, NGP X, GFW X, GFW X GP and NGP ECM disclaims beneficial ownership of the reported securities in excess of its pecuniary interest therein.

F4 · ownership.direct: On December 19, 2016, WildHorse Holdings entered into the Stockholders' Agreement (the "Stockholders' Agreement"), pursuant to which, each of the parties thereto agreed, among other things, to cause the shares of Common Stock and any equity securities of the Issuer held by such party to be voted for the individuals properly designated by the parties to the Stockholders' Agreement for election to the Issuer's board of directors. As a result, the parties thereto may be deemed to be members of a group holding over 10% of the outstanding Common Stock of the Issuer (the "Group") for the purposes of Section 13(d)(3) of the Exchange Act of 1934, as amended (the "Exchange Act").

F5 · ownership.direct: WildHorse Holdings disclaims beneficial ownership of the shares of Common Stock held by the members of the Group, except to the extent of its pecuniary interest therein, and this statement shall not be construed as an admission that WildHorse Holdings is the beneficial owner of any such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

SEC source: 0000899243-16-032739 · doc4.xml · derivative · entry 2

NGP X US Holdings LP · CIK 0001606887 · Director · 10% owner

NGP X Holdings GP, L.L.C. · CIK 0001647719 · Director · 10% owner

NGP Natural Resources X, L.P. · CIK 0001521229 · Director · 10% owner

NGP X Parallel Holdings, L.P. · CIK 0001598409 · Director · 10% owner

GFW X, L.L.C. · CIK 0001555576 · Director · 10% owner

G.F.W. Energy X, L.P. · CIK 0001555496 · Director · 10% owner

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Common Units · 12,500,000 shares

Expires not disclosed

F4 · derivative.exercise_price: Subordinated units will convert into common units on a one-for-one basis as described in the Issuer's Registration Statement on Form S-1 (Registration No. 333-199020).

F1 · shares: The reported securities are held by PennTex Midstream Partners, LLC ("PennTex Development"). On November 1, 2016, NGP X US Holdings LP ("NGP X Holdings") transferred and assigned to Energy Transfer Partners, L.P. ("ETP") all of its 95.147% interest in PennTex Development, which owns 3,262,019 common units and 12,500,000 subordinated units of PennTex Midstream Partners, LP (the "Partnership"), in exchange for a combination of cash and ETP common units with a value equal to $343,091,523. The reporting owner disclaims beneficial ownership of the Partnership common units and subordinated units except to the extent of it pecuniary interest therein.

F1 · price: The reported securities are held by PennTex Midstream Partners, LLC ("PennTex Development"). On November 1, 2016, NGP X US Holdings LP ("NGP X Holdings") transferred and assigned to Energy Transfer Partners, L.P. ("ETP") all of its 95.147% interest in PennTex Development, which owns 3,262,019 common units and 12,500,000 subordinated units of PennTex Midstream Partners, LP (the "Partnership"), in exchange for a combination of cash and ETP common units with a value equal to $343,091,523. The reporting owner disclaims beneficial ownership of the Partnership common units and subordinated units except to the extent of it pecuniary interest therein.

F4 · derivative.exercise_date: Subordinated units will convert into common units on a one-for-one basis as described in the Issuer's Registration Statement on Form S-1 (Registration No. 333-199020).

F4 · derivative.expiration_date: Subordinated units will convert into common units on a one-for-one basis as described in the Issuer's Registration Statement on Form S-1 (Registration No. 333-199020).

F1 · derivative.underlying_shares: The reported securities are held by PennTex Midstream Partners, LLC ("PennTex Development"). On November 1, 2016, NGP X US Holdings LP ("NGP X Holdings") transferred and assigned to Energy Transfer Partners, L.P. ("ETP") all of its 95.147% interest in PennTex Development, which owns 3,262,019 common units and 12,500,000 subordinated units of PennTex Midstream Partners, LP (the "Partnership"), in exchange for a combination of cash and ETP common units with a value equal to $343,091,523. The reporting owner disclaims beneficial ownership of the Partnership common units and subordinated units except to the extent of it pecuniary interest therein.

F2 · ownership.nature: This Form 4 is filed jointly by NGP X Holdings, NGP Natural Resources X, L.P. ("NGP X"), NGP X Parallel Holdings, L.P. ("NGP X Parallel"), GFW X, L.L.C. ("GFW X"), G.F.W. Energy X, L.P. ("GFW Energy X") and NGP Energy Capital Management, L.L.C. ("NGP ECM").

F3 · ownership.nature: NGP X Holdings is wholly owned and controlled by its general partner, NGP X Holdings GP, L.L.C. ("NGP X Holdings GP"), and its limited partners, NGP X and NGP X Parallel. NGP X Holdings GP is wholly owned by NGP X. GFW Energy X is the sole general partner of NGP X and NGP X Parallel. GFW X is the sole general partner of GFW Energy X. GFW X has delegated full power and authority to manage NGP X and NGP X Parallel to NGP ECM. Accordingly, NGP X Holdings, NGP X Holdings GP, NGP X, NGP X Parallel, GFW X, GFW Energy X and NGP ECM may be deemed to share voting and dispositive power over the reported units, and therefore may also be deemed to be the beneficial owner of these units but disclaims such ownership except to the extent of its pecuniary interest therein.

SEC source: 0000899243-16-032739 · doc4.xml · nonDerivative · entry 1

NGP X US Holdings LP · CIK 0001606887 · Director · 10% owner

NGP X Holdings GP, L.L.C. · CIK 0001647719 · Director · 10% owner

NGP Natural Resources X, L.P. · CIK 0001521229 · Director · 10% owner

NGP X Parallel Holdings, L.P. · CIK 0001598409 · Director · 10% owner

GFW X, L.L.C. · CIK 0001555576 · Director · 10% owner

G.F.W. Energy X, L.P. · CIK 0001555496 · Director · 10% owner

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F1 · shares: The reported securities are held by PennTex Midstream Partners, LLC ("PennTex Development"). On November 1, 2016, NGP X US Holdings LP ("NGP X Holdings") transferred and assigned to Energy Transfer Partners, L.P. ("ETP") all of its 95.147% interest in PennTex Development, which owns 3,262,019 common units and 12,500,000 subordinated units of PennTex Midstream Partners, LP (the "Partnership"), in exchange for a combination of cash and ETP common units with a value equal to $343,091,523. The reporting owner disclaims beneficial ownership of the Partnership common units and subordinated units except to the extent of it pecuniary interest therein.

F1 · price: The reported securities are held by PennTex Midstream Partners, LLC ("PennTex Development"). On November 1, 2016, NGP X US Holdings LP ("NGP X Holdings") transferred and assigned to Energy Transfer Partners, L.P. ("ETP") all of its 95.147% interest in PennTex Development, which owns 3,262,019 common units and 12,500,000 subordinated units of PennTex Midstream Partners, LP (the "Partnership"), in exchange for a combination of cash and ETP common units with a value equal to $343,091,523. The reporting owner disclaims beneficial ownership of the Partnership common units and subordinated units except to the extent of it pecuniary interest therein.

F2 · ownership.nature: This Form 4 is filed jointly by NGP X Holdings, NGP Natural Resources X, L.P. ("NGP X"), NGP X Parallel Holdings, L.P. ("NGP X Parallel"), GFW X, L.L.C. ("GFW X"), G.F.W. Energy X, L.P. ("GFW Energy X") and NGP Energy Capital Management, L.L.C. ("NGP ECM").

F3 · ownership.nature: NGP X Holdings is wholly owned and controlled by its general partner, NGP X Holdings GP, L.L.C. ("NGP X Holdings GP"), and its limited partners, NGP X and NGP X Parallel. NGP X Holdings GP is wholly owned by NGP X. GFW Energy X is the sole general partner of NGP X and NGP X Parallel. GFW X is the sole general partner of GFW Energy X. GFW X has delegated full power and authority to manage NGP X and NGP X Parallel to NGP ECM. Accordingly, NGP X Holdings, NGP X Holdings GP, NGP X, NGP X Parallel, GFW X, GFW Energy X and NGP ECM may be deemed to share voting and dispositive power over the reported units, and therefore may also be deemed to be the beneficial owner of these units but disclaims such ownership except to the extent of its pecuniary interest therein.

SEC source: 0000899243-16-030814 · doc4.xml · derivative · entry 1

NGP Triangle Holdings, LLC · CIK 0001555517 · Director · 10% owner

NGP Natural Resources X, L.P. · CIK 0001521229 · 10% owner

G.F.W. Energy X, L.P. · CIK 0001555496 · 10% owner

GFW X, L.L.C. · CIK 0001555576 · 10% owner

NGP Energy Capital Management, L.L.C. · CIK 0001471812 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 147,606,635.27

Underlying: Common Stock · 227,788 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_price: (Continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.exercise_price: (Continued from Footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.exercise_price: (Continued from Footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · derivative.exercise_price: (Continued from Footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · derivative.exercise_price: (Continued from Footnote 5) Based on an initial conversion price of $8.00 per share, $1,822,304.14 in principal amount of Convertible Notes would be convertible into 227,788 shares of Common Stock and $147,606,635.27 in principal amount of Convertible Notes would be convertible into 18,450,829 shares of Common Stock.

F7 · kind: The issuance of the Convertible Notes to NGP Triangle and the payment of the interest thereon in kind were approved by the Board of Directors of Triangle. Accordingly, the transaction reported on this Form 4 is exempt from Section 16(b) pursuant to Rule 16b-3(d)(1) under the Securities Exchange Act of 1934 (the "Exchange Act"). The transaction reported on this Form 4 is also exempt pursuant to Rule 16a-9 under the Exchange Act.

F1 · shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · shares: (Continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · shares: (Continued from Footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · shares: (Continued from Footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · shares: (Continued from Footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · shares: (Continued from Footnote 5) Based on an initial conversion price of $8.00 per share, $1,822,304.14 in principal amount of Convertible Notes would be convertible into 227,788 shares of Common Stock and $147,606,635.27 in principal amount of Convertible Notes would be convertible into 18,450,829 shares of Common Stock.

F1 · price: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · price: (Continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · price: (Continued from Footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · price: (Continued from Footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · price: (Continued from Footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · price: (Continued from Footnote 5) Based on an initial conversion price of $8.00 per share, $1,822,304.14 in principal amount of Convertible Notes would be convertible into 227,788 shares of Common Stock and $147,606,635.27 in principal amount of Convertible Notes would be convertible into 18,450,829 shares of Common Stock.

F1 · derivative.exercise_date: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.exercise_date: (Continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.exercise_date: (Continued from Footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.exercise_date: (Continued from Footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · derivative.exercise_date: (Continued from Footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · derivative.exercise_date: (Continued from Footnote 5) Based on an initial conversion price of $8.00 per share, $1,822,304.14 in principal amount of Convertible Notes would be convertible into 227,788 shares of Common Stock and $147,606,635.27 in principal amount of Convertible Notes would be convertible into 18,450,829 shares of Common Stock.

F8 · derivative.expiration_date: The Convertible Notes do not have an expiration date.

F1 · derivative.underlying_shares: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · derivative.underlying_shares: (Continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · derivative.underlying_shares: (Continued from Footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · derivative.underlying_shares: (Continued from Footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · derivative.underlying_shares: (Continued from Footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · derivative.underlying_shares: (Continued from Footnote 5) Based on an initial conversion price of $8.00 per share, $1,822,304.14 in principal amount of Convertible Notes would be convertible into 227,788 shares of Common Stock and $147,606,635.27 in principal amount of Convertible Notes would be convertible into 18,450,829 shares of Common Stock.

F1 · balance_after: Pursuant to a Note Purchase Agreement (the "Note Purchase Agreement"), dated July 31, 2012, between Triangle Petroleum Corporation ("Triangle") and NGP Triangle Holdings, LLC ("NGP Triangle"), Triangle issued and sold to NGP Triangle $120,000,000 of convertible notes (the "Convertible Notes"), which are convertible at any time and from time to time into shares of common stock of Triangle (the "Common Stock") at an initial conversion price of $8.00 per share (subject to customary adjustments for stock splits and recapitalizations). The Convertible Notes accrue interest at a rate of 5% per annum, compounded quarterly, to be paid on each December 31, March 31, June 30 and September 30, and on the date of any redemption, conversion or exchange of the Convertible Notes.

F2 · balance_after: (Continued from Footnote 1) Such interest payments are to be paid in kind by adding the accrued interest to the principal balance of the Convertible Notes; provided, that, following July 31, 2017, Triangle has the option to make such interest payments in cash. Accordingly, on September 30, 2012, accrued interest in the amount of $1,000,000 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $121,000,000. On December 31, 2012, accrued interest in the amount of $1,512,500 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $122,512,500. On March 31, 2013, accrued interest in the amount of $1,531,406.25 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $124,043,906.25.

F3 · balance_after: (Continued from Footnote 2) On June 30, 2013, accrued interest in the amount of $1,550,548.83 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $125,594,455.08. On September 30, 2013, accrued interest in the amount of $1,569,930.69 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $127,164,385.77. On December 31, 2013, accrued interest in the amount of $1,589,554.82 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $128,753,940.59. On March 31, 2014, accrued interest in the amount of $1,609,424.26 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $130,363,364.85. On June 30, 2014, accrued interest in the amount of $1,629,542.06 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $131,992,906.91.

F4 · balance_after: (Continued from Footnote 3) On September 30, 2014, accrued interest in the amount of $1,649,911.34 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $133,642,818.25. On December 31, 2014, accrued interest in the amount of $1,670,535.23 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $135,313,353.47. On March 31, 2015, accrued interest in the amount of $1,691,416.92 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $137,004,770.39. On June 30, 2015, accrued interest in the amount of $1,712,559.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $138,717,330.02. On September 30, 2015, accrued interest in the amount of $1,733,966.63 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $140,451,296.64.

F5 · balance_after: (Continued from Footnote 4) On December 31, 2015, accrued interest in the amount of $1,755,641.21 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $142,206,937.85. On March 31, 2016, accrued interest in the amount of $1,777,586.72 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $143,984,524.58. On June 30, 2016, accrued interest in the amount of $1,799,806.56 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $145,784,331.13. On September 30, 2016, accrued interest in the amount of $1,822,304.14 was added to the principal amount of the Convertible Notes, resulting in an aggregate principal amount of $147,606,635.27.

F6 · balance_after: (Continued from Footnote 5) Based on an initial conversion price of $8.00 per share, $1,822,304.14 in principal amount of Convertible Notes would be convertible into 227,788 shares of Common Stock and $147,606,635.27 in principal amount of Convertible Notes would be convertible into 18,450,829 shares of Common Stock.