person · Reporting owner

Silver Run Sponsor II, LLC

Disclosed activity across 1 company

Tapewire entity: 169470
SEC CIK: 0001700806

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
Alta Mesa Resources, Inc. /DEAMR · Entity 154261	Director · 10% owner	February 09, 2018	February 13, 2018

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Alta Mesa Resources, Inc. /DE

Report date February 09, 2018 · Filed February 13, 2018

Jointly reported with Riverstone VI SR II Holdings, L.P., Riverstone Energy VI Holdings GP, LLC, Riverstone Energy Partners VI, L.P., Riverstone Energy GP VI, LLC, Riverstone Energy GP VI Corp., RIVERSTONE HOLDINGS LLC, LAPEYRE PIERRE F JR, LEUSCHEN DAVID M

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Class A Common StockSEC Table I · non-derivative	IndirectSee footnotes	65,776,000	Last balance in matching sequence After 2018-02-09 transaction · row 2 Source-order balances reconcile. Account continuity and personal attribution are not independently verified. 2 source rows Row 1 · 2018-02-09 · Grant · Acquired 40,000,000 · Balance 40,000,000 F1: Following the transactions reported herein, includes 16,548,894 shares held of record by Silver Run Sponsor II, LLC ("Sponsor"), 18,522,000 shares held of record by Riverstone VI SR II Holdings, L.P. ("SR II Holdings"), 25,857,148 shares held by Riverstone AMR Partners, L.P. ("AMR Partners"), 1,720,243 shares held of record by Riverstone AMR Partners-U, LLC ("AMR Partners-U") and 3,127,715 shares held of record by Riverstone AMR Partners-T, L.P. F5: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. Row 2 · 2018-02-09 · Conversion · Acquired 25,776,000 · Balance 65,776,000 F2: Prior to the transactions reported herein, the Class B Common Stock was held of record by Sponsor. In connection with the closing of the initial business combination of the Issuer (the "Initial Business Combination"), each share of Class B Common Stock automatically converted into Class A Common Stock of the Issuer on a 1-to-1 basis. F1: Following the transactions reported herein, includes 16,548,894 shares held of record by Silver Run Sponsor II, LLC ("Sponsor"), 18,522,000 shares held of record by Riverstone VI SR II Holdings, L.P. ("SR II Holdings"), 25,857,148 shares held by Riverstone AMR Partners, L.P. ("AMR Partners"), 1,720,243 shares held of record by Riverstone AMR Partners-U, LLC ("AMR Partners-U") and 3,127,715 shares held of record by Riverstone AMR Partners-T, L.P. F5: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
Class C Common StockSEC Table I · non-derivative	IndirectSee footnotes	20,000,000	Reported balance After 2018-02-09 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2018-02-09 · Grant · Acquired 20,000,000 · Balance 20,000,000 F3: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled. F5: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
Warrants (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.50 · Expires 2023-02-09	IndirectSee footnotes	28,466,666	Reported balance After 2018-02-09 transaction · row 4 Instrument identity requires review; Table II rows are not merged. 1 source row Row 4 · 2018-02-09 · Grant · Acquired 28,466,666 · Balance 28,466,666 F4: Includes 9,716,012 warrants held of record by Sponsor, 13,333,333 warrants held of record by SR II Holdings, 4,561,992 warrants held by AMR Partners, 303,504 warrants held of record by AMR Partners-U and 551,825 warrants held of record by AMR Partners-T. Of these, 15,133,333 warrants were purchased simultaneous with the closing of the Issuer's initial public offering on March 29, 2017, and 13,333,333 warrants were issued pursuant to a forward purchase agreement dated as of March 17, 2017. The warrants became exercisable after the completion of the Initial Business Combination, which occurred on February 9, 2018. F5: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
Class B Common StockSEC Table II · derivative / convertible security	IndirectSee footnotes	0	Reported balance After 2018-02-09 transaction · row 5 Instrument identity requires review; Table II rows are not merged. 1 source row Row 5 · 2018-02-09 · Conversion · Disposed 25,776,000 · Balance 0 F2: Prior to the transactions reported herein, the Class B Common Stock was held of record by Sponsor. In connection with the closing of the initial business combination of the Issuer (the "Initial Business Combination"), each share of Class B Common Stock automatically converted into Class A Common Stock of the Issuer on a 1-to-1 basis. F5: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
Common UnitsSEC Table II · derivative / convertible security	IndirectSee footnotes	20,000,000	Reported balance After 2018-02-09 transaction · row 6 Instrument identity requires review; Table II rows are not merged. 1 source row Row 6 · 2018-02-09 · Grant · Acquired 20,000,000 · Balance 20,000,000 F3: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled. F5: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

Filing footnotes · ownership attribution and instrument terms

F1: Following the transactions reported herein, includes 16,548,894 shares held of record by Silver Run Sponsor II, LLC ("Sponsor"), 18,522,000 shares held of record by Riverstone VI SR II Holdings, L.P. ("SR II Holdings"), 25,857,148 shares held by Riverstone AMR Partners, L.P. ("AMR Partners"), 1,720,243 shares held of record by Riverstone AMR Partners-U, LLC ("AMR Partners-U") and 3,127,715 shares held of record by Riverstone AMR Partners-T, L.P.

F2: Prior to the transactions reported herein, the Class B Common Stock was held of record by Sponsor. In connection with the closing of the initial business combination of the Issuer (the "Initial Business Combination"), each share of Class B Common Stock automatically converted into Class A Common Stock of the Issuer on a 1-to-1 basis.

F3: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled.

F4: Includes 9,716,012 warrants held of record by Sponsor, 13,333,333 warrants held of record by SR II Holdings, 4,561,992 warrants held by AMR Partners, 303,504 warrants held of record by AMR Partners-U and 551,825 warrants held of record by AMR Partners-T. Of these, 15,133,333 warrants were purchased simultaneous with the closing of the Issuer's initial public offering on March 29, 2017, and 13,333,333 warrants were issued pursuant to a forward purchase agreement dated as of March 17, 2017. The warrants became exercisable after the completion of the Initial Business Combination, which occurred on February 9, 2018.

F5: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P.

F6: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
February 09, 2018 Filed Feb 13, 2018 21:07 UTC	Alta Mesa Resources, Inc. /DE AMR · Entity 154261	GrantCommon Units · Derivative	20,000,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001104659-18-009184 · a4.xml · derivative · entry 6 Silver Run Sponsor II, LLC · CIK 0001700806 · Director · 10% owner Riverstone VI SR II Holdings, L.P. · CIK 0001701270 · 10% owner Riverstone Energy VI Holdings GP, LLC · CIK 0001701276 · 10% owner Riverstone Energy Partners VI, L.P. · CIK 0001686391 · 10% owner Riverstone Energy GP VI, LLC · CIK 0001686387 · 10% owner Riverstone Energy GP VI Corp. · CIK 0001686355 · 10% owner RIVERSTONE HOLDINGS LLC · CIK 0001247497 · 10% owner LAPEYRE PIERRE F JR · CIK 0001232151 · Director · 10% owner LEUSCHEN DAVID M · CIK 0001222726 · 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: 20,000,000 Underlying: Class A Common Stock · 20,000,000 shares Expires not disclosed F3 · derivative.exercise_price: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled. F3 · price: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled. F3 · derivative.exercise_date: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled. F3 · derivative.expiration_date: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled. F3 · ownership.nature: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled. F5 · ownership.nature: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6 · ownership.nature: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. Read SEC document
February 09, 2018 Filed Feb 13, 2018 21:07 UTC	Alta Mesa Resources, Inc. /DE AMR · Entity 154261	ConversionClass B Common Stock · Derivative	25,776,000	$0.00	$0.00	Disclosure SEC source: 0001104659-18-009184 · a4.xml · derivative · entry 5 Silver Run Sponsor II, LLC · CIK 0001700806 · Director · 10% owner Riverstone VI SR II Holdings, L.P. · CIK 0001701270 · 10% owner Riverstone Energy VI Holdings GP, LLC · CIK 0001701276 · 10% owner Riverstone Energy Partners VI, L.P. · CIK 0001686391 · 10% owner Riverstone Energy GP VI, LLC · CIK 0001686387 · 10% owner Riverstone Energy GP VI Corp. · CIK 0001686355 · 10% owner RIVERSTONE HOLDINGS LLC · CIK 0001247497 · 10% owner LAPEYRE PIERRE F JR · CIK 0001232151 · Director · 10% owner LEUSCHEN DAVID M · CIK 0001222726 · 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: Class A Common Stock · 25,776,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: Prior to the transactions reported herein, the Class B Common Stock was held of record by Sponsor. In connection with the closing of the initial business combination of the Issuer (the "Initial Business Combination"), each share of Class B Common Stock automatically converted into Class A Common Stock of the Issuer on a 1-to-1 basis. F2 · derivative.exercise_date: Prior to the transactions reported herein, the Class B Common Stock was held of record by Sponsor. In connection with the closing of the initial business combination of the Issuer (the "Initial Business Combination"), each share of Class B Common Stock automatically converted into Class A Common Stock of the Issuer on a 1-to-1 basis. F2 · derivative.expiration_date: Prior to the transactions reported herein, the Class B Common Stock was held of record by Sponsor. In connection with the closing of the initial business combination of the Issuer (the "Initial Business Combination"), each share of Class B Common Stock automatically converted into Class A Common Stock of the Issuer on a 1-to-1 basis. F2 · ownership.nature: Prior to the transactions reported herein, the Class B Common Stock was held of record by Sponsor. In connection with the closing of the initial business combination of the Issuer (the "Initial Business Combination"), each share of Class B Common Stock automatically converted into Class A Common Stock of the Issuer on a 1-to-1 basis. F5 · ownership.nature: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6 · ownership.nature: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. Read SEC document
February 09, 2018 Filed Feb 13, 2018 21:07 UTC	Alta Mesa Resources, Inc. /DE AMR · Entity 154261	GrantWarrants (right to buy) · Derivative	28,466,666	$1.50 Strike: $11.50	$42,699,999.00	Disclosure SEC source: 0001104659-18-009184 · a4.xml · derivative · entry 4 Silver Run Sponsor II, LLC · CIK 0001700806 · Director · 10% owner Riverstone VI SR II Holdings, L.P. · CIK 0001701270 · 10% owner Riverstone Energy VI Holdings GP, LLC · CIK 0001701276 · 10% owner Riverstone Energy Partners VI, L.P. · CIK 0001686391 · 10% owner Riverstone Energy GP VI, LLC · CIK 0001686387 · 10% owner Riverstone Energy GP VI Corp. · CIK 0001686355 · 10% owner RIVERSTONE HOLDINGS LLC · CIK 0001247497 · 10% owner LAPEYRE PIERRE F JR · CIK 0001232151 · Director · 10% owner LEUSCHEN DAVID M · CIK 0001222726 · 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: 28,466,666 Underlying: Class A Common Stock · 28,466,666 shares Expires 2023-02-09 F4 · ownership.nature: Includes 9,716,012 warrants held of record by Sponsor, 13,333,333 warrants held of record by SR II Holdings, 4,561,992 warrants held by AMR Partners, 303,504 warrants held of record by AMR Partners-U and 551,825 warrants held of record by AMR Partners-T. Of these, 15,133,333 warrants were purchased simultaneous with the closing of the Issuer's initial public offering on March 29, 2017, and 13,333,333 warrants were issued pursuant to a forward purchase agreement dated as of March 17, 2017. The warrants became exercisable after the completion of the Initial Business Combination, which occurred on February 9, 2018. F5 · ownership.nature: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6 · ownership.nature: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. Read SEC document
February 09, 2018 Filed Feb 13, 2018 21:07 UTC	Alta Mesa Resources, Inc. /DE AMR · Entity 154261	GrantClass C Common Stock	20,000,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001104659-18-009184 · a4.xml · nonDerivative · entry 3 Silver Run Sponsor II, LLC · CIK 0001700806 · Director · 10% owner Riverstone VI SR II Holdings, L.P. · CIK 0001701270 · 10% owner Riverstone Energy VI Holdings GP, LLC · CIK 0001701276 · 10% owner Riverstone Energy Partners VI, L.P. · CIK 0001686391 · 10% owner Riverstone Energy GP VI, LLC · CIK 0001686387 · 10% owner Riverstone Energy GP VI Corp. · CIK 0001686355 · 10% owner RIVERSTONE HOLDINGS LLC · CIK 0001247497 · 10% owner LAPEYRE PIERRE F JR · CIK 0001232151 · Director · 10% owner LEUSCHEN DAVID M · CIK 0001222726 · 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: 20,000,000 F3 · price: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled. F3 · ownership.nature: Held of record by Riverstone VI Alta Mesa Holdings, L.P. ("Riverstone Contributor" and, together with the Sponsor, SR II Holdings, AMR Partners, AMR Partners-U and AMR Partners-T, the "Riverstone Funds"). In connection with the closing of the Issuer's Initial Business Combination, the Issuer issued Riverstone Contributor 20,000,000 shares of Class C Common Stock and caused SRII Opco, LP to issue an equal number of its common units (the "SRII Opco Common Units") to the Riverstone Contributor in exchange for certain assets of Riverstone Contributor. The SRII Opco Common Units may, at the option of Riverstone Contributor, be redeemed for shares of Class A Common Stock on a one-to-one basis at any time after 180 days after the closing of the Initial Business Combination and have no expiration date. Upon redemption, an equal number of shares of Class C Common Stock will be cancelled. F5 · ownership.nature: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6 · ownership.nature: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. Read SEC document
February 09, 2018 Filed Feb 13, 2018 21:07 UTC	Alta Mesa Resources, Inc. /DE AMR · Entity 154261	ConversionClass A Common Stock	25,776,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001104659-18-009184 · a4.xml · nonDerivative · entry 2 Silver Run Sponsor II, LLC · CIK 0001700806 · Director · 10% owner Riverstone VI SR II Holdings, L.P. · CIK 0001701270 · 10% owner Riverstone Energy VI Holdings GP, LLC · CIK 0001701276 · 10% owner Riverstone Energy Partners VI, L.P. · CIK 0001686391 · 10% owner Riverstone Energy GP VI, LLC · CIK 0001686387 · 10% owner Riverstone Energy GP VI Corp. · CIK 0001686355 · 10% owner RIVERSTONE HOLDINGS LLC · CIK 0001247497 · 10% owner LAPEYRE PIERRE F JR · CIK 0001232151 · Director · 10% owner LEUSCHEN DAVID M · CIK 0001222726 · 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: 65,776,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · price: Prior to the transactions reported herein, the Class B Common Stock was held of record by Sponsor. In connection with the closing of the initial business combination of the Issuer (the "Initial Business Combination"), each share of Class B Common Stock automatically converted into Class A Common Stock of the Issuer on a 1-to-1 basis. F1 · ownership.nature: Following the transactions reported herein, includes 16,548,894 shares held of record by Silver Run Sponsor II, LLC ("Sponsor"), 18,522,000 shares held of record by Riverstone VI SR II Holdings, L.P. ("SR II Holdings"), 25,857,148 shares held by Riverstone AMR Partners, L.P. ("AMR Partners"), 1,720,243 shares held of record by Riverstone AMR Partners-U, LLC ("AMR Partners-U") and 3,127,715 shares held of record by Riverstone AMR Partners-T, L.P. F5 · ownership.nature: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6 · ownership.nature: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. Read SEC document
February 09, 2018 Filed Feb 13, 2018 21:07 UTC	Alta Mesa Resources, Inc. /DE AMR · Entity 154261	GrantClass A Common Stock	40,000,000	$10.00	$400,000,000.00	Disclosure SEC source: 0001104659-18-009184 · a4.xml · nonDerivative · entry 1 Silver Run Sponsor II, LLC · CIK 0001700806 · Director · 10% owner Riverstone VI SR II Holdings, L.P. · CIK 0001701270 · 10% owner Riverstone Energy VI Holdings GP, LLC · CIK 0001701276 · 10% owner Riverstone Energy Partners VI, L.P. · CIK 0001686391 · 10% owner Riverstone Energy GP VI, LLC · CIK 0001686387 · 10% owner Riverstone Energy GP VI Corp. · CIK 0001686355 · 10% owner RIVERSTONE HOLDINGS LLC · CIK 0001247497 · 10% owner LAPEYRE PIERRE F JR · CIK 0001232151 · Director · 10% owner LEUSCHEN DAVID M · CIK 0001222726 · 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: 40,000,000 F1 · ownership.nature: Following the transactions reported herein, includes 16,548,894 shares held of record by Silver Run Sponsor II, LLC ("Sponsor"), 18,522,000 shares held of record by Riverstone VI SR II Holdings, L.P. ("SR II Holdings"), 25,857,148 shares held by Riverstone AMR Partners, L.P. ("AMR Partners"), 1,720,243 shares held of record by Riverstone AMR Partners-U, LLC ("AMR Partners-U") and 3,127,715 shares held of record by Riverstone AMR Partners-T, L.P. F5 · ownership.nature: David M. Leuschen and Pierre F. Lapeyre, Jr. are the members of Riverstone Management Group, L.L.C. ("Riverstone Management"), which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P. ("Riverstone/Gower"), which is the sole member of Riverstone Holdings LLC ("Holdings"), which is the sole shareholder of Riverstone Energy GP VI Corp, which is the managing member of Riverstone Energy GP VI, LLC ("Riverstone Energy GP") which is the general partner of Riverstone Energy Partners VI, L.P., which is the general partner of AMR Partners, the manager of AMR Partners-U and the managing member of Riverstone Energy VI Holdings GP, LLC, which is the general partner of each of the Riverstone Contributor and SR II Holdings, which is the sole and managing member of Sponsor. Riverstone Energy GP is also the sole member of Riverstone Energy Partners VI (Non-U.S.), LLC, which is the general partner of AMR Partners-T, L.P. F6 · ownership.nature: Riverstone Energy GP is managed by a managing committee consisting of Pierre F. Lapeyre, Jr., David M. Leuschen, E. Bartow Jones, N. John Lancaster, Baran Tekkora and Robert M. Tichio. As such, each of Riverstone Energy GP, Riverstone Energy GP VI Corp, Holdings, Riverstone/Gower, Riverstone Management, Mr. Leuschen and Mr. Lapeyre may be deemed to have or share beneficial ownership of the securities held directly by the Riverstone Funds. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.