GSO Harrington Credit Alpha Associates L.L.C.

Row 1 · Balance 9,358,749

F1: Reflects securities directly held by GSO Capital Opportunities Fund III LP. GSO Capital Opportunities Associates III LLC is the general partner of GSO Capital Opportunities Fund III LP.

F10: GSO Holdings I L.L.C. is the managing member of GSO Capital Opportunities Associates III LLC, GSO Harrington Credit Alpha Associates L.L.C., GSO Capital Solutions Associates III (Delaware) LLC and the sole member of GSO Credit Alpha Associates II (Delaware) LLC. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 2 · Balance 8,309,901

F2: Reflects securities directly held by GSO CSF III Holdco LP. GSO Capital Solutions Associates III LP is the general partner of GSO CSF III Holdco LP. GSO Capital Solutions Associates III (Delaware) LLC is a general partner of GSO Capital Solutions Associates III LP.

F10: GSO Holdings I L.L.C. is the managing member of GSO Capital Opportunities Associates III LLC, GSO Harrington Credit Alpha Associates L.L.C., GSO Capital Solutions Associates III (Delaware) LLC and the sole member of GSO Credit Alpha Associates II (Delaware) LLC. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 3 · Balance 802,179

F3: Reflects securities directly held by GSO Credit Alpha II Trading (Cayman) LP. GSO Credit Alpha Associates II LP is the general partner of GSO Credit Alpha II Trading (Cayman) LP. GSO Credit Alpha Associates II (Delaware) LLC is a general partner of GSO Credit Alpha Associates II LP.

F10: GSO Holdings I L.L.C. is the managing member of GSO Capital Opportunities Associates III LLC, GSO Harrington Credit Alpha Associates L.L.C., GSO Capital Solutions Associates III (Delaware) LLC and the sole member of GSO Credit Alpha Associates II (Delaware) LLC. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 4 · Balance 133,697

F4: Reflects securities directly held by GSO Harrington Credit Alpha Fund (Cayman) L.P. GSO Harrington Credit Alpha Associates L.L.C. is the general partner of GSO Harrington Credit Alpha Fund (Cayman) L.P.

F10: GSO Holdings I L.L.C. is the managing member of GSO Capital Opportunities Associates III LLC, GSO Harrington Credit Alpha Associates L.L.C., GSO Capital Solutions Associates III (Delaware) LLC and the sole member of GSO Credit Alpha Associates II (Delaware) LLC. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 5 · Balance 112,974

F5: Reflects securities directly held by GSO Aiguille des Grands Montets Fund II LP. GSO Capital Partners LP is an investment manager of GSO Aiguille des Grands Montets Fund II LP. GSO Advisor Holdings L.L.C. is the special limited partner of GSO Capital Partners LP with the investment and voting power over the securities beneficially owned by GSO Capital Partners LP. Blackstone Holdings I L.P. is the sole member of GSO Advisor Holdings L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 6 · Balance 7,445,474

F6: Reflects securities directly held by BTO Legend Holdings L.P. as nominee for BTO Legend Holdings (Cayman) - NQ L.P. BTO Holdings (Cayman) - NQ Manager L.L.C. is the general partner of BTO Legend Holdings (Cayman) - NQ L.P. Blackstone Tactical Opportunities Management Associates (Cayman) - NQ L.P. is the managing member of BTO Holdings (Cayman) - NQ Manager L.L.C. BTO GP - NQ L.L.C. is the general partner of Blackstone Tactical Opportunities Management Associates (Cayman) - NQ L.P.

F11: Blackstone Holdings IV L.P. is the sole member of BTO GP - NQ L.L.C. Blackstone Holdings IV GP L.P. is the general partner of Blackstone Holdings IV L.P. Blackstone Holdings IV GP Management (Delaware) L.P. is the general partner of Blackstone Holdings IV GP L.P. Blackstone Holdings IV GP Management L.L.C. is the general partner of Blackstone Holdings IV GP Management (Delaware) L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 7 · Balance 56,527

F7: Reflects securities directly held by Blackstone Family Tactical Opportunities Investment Partnership III (Cayman) - NQ - ESC L.P. BTO GP - NQ L.L.C. is the general partner of Blackstone Family Tactical Opportunities Investment Partnership III (Cayman) - NQ - ESC L.P.

F11: Blackstone Holdings IV L.P. is the sole member of BTO GP - NQ L.L.C. Blackstone Holdings IV GP L.P. is the general partner of Blackstone Holdings IV L.P. Blackstone Holdings IV GP Management (Delaware) L.P. is the general partner of Blackstone Holdings IV GP L.P. Blackstone Holdings IV GP Management L.L.C. is the general partner of Blackstone Holdings IV GP Management (Delaware) L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 8 · Balance Not disclosed

F8: Represents a Subordinated Convertible Note ("Convertible Note") which is convertible at the option of the holder, at any time after October 29, 2019, into a number of shares of Common Stock at a price of $8.00 per share, subject to customary anti-dilution adjustments. Beginning April 29, 2019, interest accrues on the Convertible Note at a rate of 12.0% per annum, increasing to a rate of 16.0% per annum from and after October 29, 2019, with such interest being payable in cash, unless the Issuer is unable to pay cash interest in which case such amounts will accrue to the principal amount of the Convertible Note.

F9: The Convertible Note matures on the earlier of (i) the repayment in full of all amounts due under the Issuer's Second Lien Credit Agreement dated as of October 29, 2018, between the Issuer and the lenders and agents party thereto and (ii) October 29, 2024. The Issuer may prepay the Convertible Note under certain circumstances, in an amount equal to the greater of (a) the principal amount of the Convertible Note, together with accrued interest and (b) the value equal to the number of shares of Common Stock that would be received upon conversion of the Convertible Note, based on fair market value, together with accrued interest.

F1: Reflects securities directly held by GSO Capital Opportunities Fund III LP. GSO Capital Opportunities Associates III LLC is the general partner of GSO Capital Opportunities Fund III LP.

F10: GSO Holdings I L.L.C. is the managing member of GSO Capital Opportunities Associates III LLC, GSO Harrington Credit Alpha Associates L.L.C., GSO Capital Solutions Associates III (Delaware) LLC and the sole member of GSO Credit Alpha Associates II (Delaware) LLC. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 9 · Balance Not disclosed

F8: Represents a Subordinated Convertible Note ("Convertible Note") which is convertible at the option of the holder, at any time after October 29, 2019, into a number of shares of Common Stock at a price of $8.00 per share, subject to customary anti-dilution adjustments. Beginning April 29, 2019, interest accrues on the Convertible Note at a rate of 12.0% per annum, increasing to a rate of 16.0% per annum from and after October 29, 2019, with such interest being payable in cash, unless the Issuer is unable to pay cash interest in which case such amounts will accrue to the principal amount of the Convertible Note.

F9: The Convertible Note matures on the earlier of (i) the repayment in full of all amounts due under the Issuer's Second Lien Credit Agreement dated as of October 29, 2018, between the Issuer and the lenders and agents party thereto and (ii) October 29, 2024. The Issuer may prepay the Convertible Note under certain circumstances, in an amount equal to the greater of (a) the principal amount of the Convertible Note, together with accrued interest and (b) the value equal to the number of shares of Common Stock that would be received upon conversion of the Convertible Note, based on fair market value, together with accrued interest.

F2: Reflects securities directly held by GSO CSF III Holdco LP. GSO Capital Solutions Associates III LP is the general partner of GSO CSF III Holdco LP. GSO Capital Solutions Associates III (Delaware) LLC is a general partner of GSO Capital Solutions Associates III LP.

F10: GSO Holdings I L.L.C. is the managing member of GSO Capital Opportunities Associates III LLC, GSO Harrington Credit Alpha Associates L.L.C., GSO Capital Solutions Associates III (Delaware) LLC and the sole member of GSO Credit Alpha Associates II (Delaware) LLC. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 10 · Balance Not disclosed

F8: Represents a Subordinated Convertible Note ("Convertible Note") which is convertible at the option of the holder, at any time after October 29, 2019, into a number of shares of Common Stock at a price of $8.00 per share, subject to customary anti-dilution adjustments. Beginning April 29, 2019, interest accrues on the Convertible Note at a rate of 12.0% per annum, increasing to a rate of 16.0% per annum from and after October 29, 2019, with such interest being payable in cash, unless the Issuer is unable to pay cash interest in which case such amounts will accrue to the principal amount of the Convertible Note.

F9: The Convertible Note matures on the earlier of (i) the repayment in full of all amounts due under the Issuer's Second Lien Credit Agreement dated as of October 29, 2018, between the Issuer and the lenders and agents party thereto and (ii) October 29, 2024. The Issuer may prepay the Convertible Note under certain circumstances, in an amount equal to the greater of (a) the principal amount of the Convertible Note, together with accrued interest and (b) the value equal to the number of shares of Common Stock that would be received upon conversion of the Convertible Note, based on fair market value, together with accrued interest.

F3: Reflects securities directly held by GSO Credit Alpha II Trading (Cayman) LP. GSO Credit Alpha Associates II LP is the general partner of GSO Credit Alpha II Trading (Cayman) LP. GSO Credit Alpha Associates II (Delaware) LLC is a general partner of GSO Credit Alpha Associates II LP.

F10: GSO Holdings I L.L.C. is the managing member of GSO Capital Opportunities Associates III LLC, GSO Harrington Credit Alpha Associates L.L.C., GSO Capital Solutions Associates III (Delaware) LLC and the sole member of GSO Credit Alpha Associates II (Delaware) LLC. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 11 · Balance Not disclosed

F8: Represents a Subordinated Convertible Note ("Convertible Note") which is convertible at the option of the holder, at any time after October 29, 2019, into a number of shares of Common Stock at a price of $8.00 per share, subject to customary anti-dilution adjustments. Beginning April 29, 2019, interest accrues on the Convertible Note at a rate of 12.0% per annum, increasing to a rate of 16.0% per annum from and after October 29, 2019, with such interest being payable in cash, unless the Issuer is unable to pay cash interest in which case such amounts will accrue to the principal amount of the Convertible Note.

F9: The Convertible Note matures on the earlier of (i) the repayment in full of all amounts due under the Issuer's Second Lien Credit Agreement dated as of October 29, 2018, between the Issuer and the lenders and agents party thereto and (ii) October 29, 2024. The Issuer may prepay the Convertible Note under certain circumstances, in an amount equal to the greater of (a) the principal amount of the Convertible Note, together with accrued interest and (b) the value equal to the number of shares of Common Stock that would be received upon conversion of the Convertible Note, based on fair market value, together with accrued interest.

F4: Reflects securities directly held by GSO Harrington Credit Alpha Fund (Cayman) L.P. GSO Harrington Credit Alpha Associates L.L.C. is the general partner of GSO Harrington Credit Alpha Fund (Cayman) L.P.

F10: GSO Holdings I L.L.C. is the managing member of GSO Capital Opportunities Associates III LLC, GSO Harrington Credit Alpha Associates L.L.C., GSO Capital Solutions Associates III (Delaware) LLC and the sole member of GSO Credit Alpha Associates II (Delaware) LLC. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 12 · Balance Not disclosed

F8: Represents a Subordinated Convertible Note ("Convertible Note") which is convertible at the option of the holder, at any time after October 29, 2019, into a number of shares of Common Stock at a price of $8.00 per share, subject to customary anti-dilution adjustments. Beginning April 29, 2019, interest accrues on the Convertible Note at a rate of 12.0% per annum, increasing to a rate of 16.0% per annum from and after October 29, 2019, with such interest being payable in cash, unless the Issuer is unable to pay cash interest in which case such amounts will accrue to the principal amount of the Convertible Note.

F9: The Convertible Note matures on the earlier of (i) the repayment in full of all amounts due under the Issuer's Second Lien Credit Agreement dated as of October 29, 2018, between the Issuer and the lenders and agents party thereto and (ii) October 29, 2024. The Issuer may prepay the Convertible Note under certain circumstances, in an amount equal to the greater of (a) the principal amount of the Convertible Note, together with accrued interest and (b) the value equal to the number of shares of Common Stock that would be received upon conversion of the Convertible Note, based on fair market value, together with accrued interest.

F5: Reflects securities directly held by GSO Aiguille des Grands Montets Fund II LP. GSO Capital Partners LP is an investment manager of GSO Aiguille des Grands Montets Fund II LP. GSO Advisor Holdings L.L.C. is the special limited partner of GSO Capital Partners LP with the investment and voting power over the securities beneficially owned by GSO Capital Partners LP. Blackstone Holdings I L.P. is the sole member of GSO Advisor Holdings L.L.C.

F12: Blackstone Holdings I/II GP Inc. is the general partner of each of Blackstone Holdings I L.P. and Blackstone Holdings II L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 13 · Balance Not disclosed

F8: Represents a Subordinated Convertible Note ("Convertible Note") which is convertible at the option of the holder, at any time after October 29, 2019, into a number of shares of Common Stock at a price of $8.00 per share, subject to customary anti-dilution adjustments. Beginning April 29, 2019, interest accrues on the Convertible Note at a rate of 12.0% per annum, increasing to a rate of 16.0% per annum from and after October 29, 2019, with such interest being payable in cash, unless the Issuer is unable to pay cash interest in which case such amounts will accrue to the principal amount of the Convertible Note.

F9: The Convertible Note matures on the earlier of (i) the repayment in full of all amounts due under the Issuer's Second Lien Credit Agreement dated as of October 29, 2018, between the Issuer and the lenders and agents party thereto and (ii) October 29, 2024. The Issuer may prepay the Convertible Note under certain circumstances, in an amount equal to the greater of (a) the principal amount of the Convertible Note, together with accrued interest and (b) the value equal to the number of shares of Common Stock that would be received upon conversion of the Convertible Note, based on fair market value, together with accrued interest.

F6: Reflects securities directly held by BTO Legend Holdings L.P. as nominee for BTO Legend Holdings (Cayman) - NQ L.P. BTO Holdings (Cayman) - NQ Manager L.L.C. is the general partner of BTO Legend Holdings (Cayman) - NQ L.P. Blackstone Tactical Opportunities Management Associates (Cayman) - NQ L.P. is the managing member of BTO Holdings (Cayman) - NQ Manager L.L.C. BTO GP - NQ L.L.C. is the general partner of Blackstone Tactical Opportunities Management Associates (Cayman) - NQ L.P.

F11: Blackstone Holdings IV L.P. is the sole member of BTO GP - NQ L.L.C. Blackstone Holdings IV GP L.P. is the general partner of Blackstone Holdings IV L.P. Blackstone Holdings IV GP Management (Delaware) L.P. is the general partner of Blackstone Holdings IV GP L.P. Blackstone Holdings IV GP Management L.L.C. is the general partner of Blackstone Holdings IV GP Management (Delaware) L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 14 · Balance Not disclosed

F8: Represents a Subordinated Convertible Note ("Convertible Note") which is convertible at the option of the holder, at any time after October 29, 2019, into a number of shares of Common Stock at a price of $8.00 per share, subject to customary anti-dilution adjustments. Beginning April 29, 2019, interest accrues on the Convertible Note at a rate of 12.0% per annum, increasing to a rate of 16.0% per annum from and after October 29, 2019, with such interest being payable in cash, unless the Issuer is unable to pay cash interest in which case such amounts will accrue to the principal amount of the Convertible Note.

F9: The Convertible Note matures on the earlier of (i) the repayment in full of all amounts due under the Issuer's Second Lien Credit Agreement dated as of October 29, 2018, between the Issuer and the lenders and agents party thereto and (ii) October 29, 2024. The Issuer may prepay the Convertible Note under certain circumstances, in an amount equal to the greater of (a) the principal amount of the Convertible Note, together with accrued interest and (b) the value equal to the number of shares of Common Stock that would be received upon conversion of the Convertible Note, based on fair market value, together with accrued interest.

F7: Reflects securities directly held by Blackstone Family Tactical Opportunities Investment Partnership III (Cayman) - NQ - ESC L.P. BTO GP - NQ L.L.C. is the general partner of Blackstone Family Tactical Opportunities Investment Partnership III (Cayman) - NQ - ESC L.P.

F11: Blackstone Holdings IV L.P. is the sole member of BTO GP - NQ L.L.C. Blackstone Holdings IV GP L.P. is the general partner of Blackstone Holdings IV L.P. Blackstone Holdings IV GP Management (Delaware) L.P. is the general partner of Blackstone Holdings IV GP L.P. Blackstone Holdings IV GP Management L.L.C. is the general partner of Blackstone Holdings IV GP Management (Delaware) L.P.

F13: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. and the sole member of Blackstone Holdings IV GP Management L.L.C. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities held by GSO Capital Opportunities Fund III LP, GSO CSF III Holdco LP, GSO Credit Alpha II Trading (Cayman) LP, GSO Harrington Credit Alpha Fund (Cayman) L.P. and GSO Aiguille des Grands Montets Fund II LP.

F14: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3.

F15: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F16: Each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the direct holders of securities to the extent of their direct ownership) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 1 · Balance 531,847

F1: Reflects securities held directly by GSO Capital Opportunities Fund III LP. GSO Capital Opportunities Associates III LLC is the general partner of GSO Capital Opportunities Fund III LP.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 2 · Balance 480,874

F2: Reflects securities held directly by GSO Energy Select Opportunities Fund LP. GSO Energy Select Opportunities Associates LLC is the general partner of GSO Energy Select Opportunities Fund LP.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 3 · Balance 93,389

F3: Reflects securities held directly by GSO Energy Partners-A LP. GSO Energy Partners-A Associates LLC is the general partner of GSO Energy Partners-A LP.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 4 · Balance 35,635

F4: Reflects securities held directly by GSO Energy Partners-B LP. GSO Energy Partners-B Associates LLC is the general partner of GSO Energy Partners-B LP.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 5 · Balance 37,214

F5: Reflects securities held directly by GSO Energy Partners-C LP. GSO Energy Partners-C Associates LLC is the general partner of GSO Energy Partners-C LP.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 6 · Balance 35,340

F6: Reflects securities held directly by GSO Energy Partners-C II LP. GSO Energy Partners-C Associates II LLC is the general partner of GSO Energy Partners-C II LP.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 7 · Balance 71,276

F7: Reflects securities held directly by GSO Energy Partners-D LP. GSO Energy Partners-D Associates LLC is the general partner of GSO Energy Partners-D LP.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 8 · Balance 41,855

F8: Reflects securities held directly by GSO Credit Alpha Trading (Cayman) LP. GSO Credit Alpha Associates LLC is the general partner of GSO Credit Alpha Trading (Cayman) LP.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 9 · Balance 6,291

F9: Reflects securities held directly by GSO Harrington Credit Alpha Fund (Cayman) L.P. GSO Harrington Credit Alpha Associates L.L.C. is the general partner of GSO Harrington Credit Alpha Fund (Cayman) L.P.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Row 10 · Balance 621,279

F10: Reflects securities held directly by GSO Capital Solutions Fund II LP. GSO Capital Solutions Associates II LP is the general partner of GSO Capital Solutions Fund II LP. The general partners of GSO Capital Solutions Associates II LP are GSO Capital Solutions Associates II (Delaware) LLC and GSO Capital Solutions Associates II (Cayman) Ltd.

F11: GSO Holdings I L.L.C. is the managing member of each of GSO Capital Opportunities Associates III LLC, GSO Energy Select Opportunities Associates LLC, GSO Energy Partners-A Associates LLC, GSO Energy Partners-B Associates LLC, GSO Energy Partners-C Associates LLC, GSO Energy Partners-C Associates II LLC, GSO Energy Partners-D Associates LLC, GSO Credit Alpha Associates LLC, GSO Harrington Credit Alpha Associates L.L.C. and GSO Capital Solutions Associates II (Delaware) LLC, and a shareholder of GSO Capital Solutions Associates II (Cayman) Ltd. Blackstone Holdings II L.P. is the managing member of GSO Holdings I L.L.C. with respect to securities beneficially owned by the direct holders identified in footnotes 1 through 10 above (collectively, the "GSO Funds"). Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings II L.P.

F12: The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. In addition, each of Bennett J. Goodman and J. Albert Smith III may be deemed to have shared voting power and/or investment power with respect to the securities held by the GSO Funds.

F13: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 3/A.

F14: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F15: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.