MGY

SEC source: 0001104659-22-033507 · tm229229-2_4seq1.xml · nonDerivative · entry 2

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · Director

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,528,823

F12 · shares: Represents shares of Class A Common Stock sold in an underwritten block trade transaction pursuant to the Issuer's registration statement on Form S-3 filed with the SEC on August 10, 2018 (the "Block Trade"), as follows: (i) 3,141,047 shares of Class A Common Stock sold by EV XIV-A; (ii) 32,814 shares of Class A Common Stock sold by EV XIV-WIC; (iii) 601,097 shares of Class A Common Stock sold by EV XIV-2A; (iv) 620,092 shares of Class A Common Stock sold by EV XIV-3A; (v) 350,873 shares of Class A Common Stock sold by EV XIV-C-AIV; and (vi) 2,754,077 shares of Class A Common Stock sold by EV XIV-C.

F7 · price: This amount represents the purchase price in the Block Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of the Class B Common Stock under the March 2022 Transfer.

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F13 · balance_after: EV XIV-C owns of record 13,528,823 shares of Class A Common Stock.

SEC source: 0001104659-22-033507 · tm229229-2_4seq1.xml · nonDerivative · entry 1

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · Director

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,028,823

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.

F4 · shares: Represents: (i) 3,141,047 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 32,814 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 601,097 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 620,092 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 350,873 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "March 2022 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F5 · balance_after: Represents the March 2022 Conversion Shares and 16,282,900 shares of Class A Common Stock held by EV XIV-C.

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001104659-22-033506 · tm229229-1_4seq1.xml · derivative · entry 5

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 35,594,059

Underlying: Class A Common Stock · 2,500,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F14 · derivative.exercise_price: Represents: (i) 1,654,602 shares of Class B Common Stock transferred by EV XIV-A; (ii) 17,285 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 316,639 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 326,645 of Class B Common Stock transferred by EV XIV-3A; and (v) 184,829 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "March 2022 Transfer").

F14 · shares: Represents: (i) 1,654,602 shares of Class B Common Stock transferred by EV XIV-A; (ii) 17,285 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 316,639 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 326,645 of Class B Common Stock transferred by EV XIV-3A; and (v) 184,829 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "March 2022 Transfer").

F8 · price: This amount represents the purchase price in the Block Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of the Class B Common Stock under the March 2022 Transfer.

F1 · derivative.exercise_date: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F9 · derivative.expiration_date: Not applicable.

F14 · derivative.underlying_shares: Represents: (i) 1,654,602 shares of Class B Common Stock transferred by EV XIV-A; (ii) 17,285 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 316,639 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 326,645 of Class B Common Stock transferred by EV XIV-3A; and (v) 184,829 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "March 2022 Transfer").

F11 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

F15 · balance_after: EV XIV-A owns of record 23,557,616 shares of Class B Common Stock; EV XIV-2A owns of record 4,508,181 shares of Class B Common Stock; EV XIV-3A owns of record 4,650,650 shares of Class B Common Stock; EV XIV-WIC owns of record 246,092 shares of Class B Common Stock; and EV XIV-C-AIV owns of record 2,631,520 shares of Class B Common Stock.

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-22-033506 · tm229229-1_4seq1.xml · derivative · entry 4

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 38,094,059

Underlying: Class A Common Stock · 4,745,923 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.

F1 · derivative.exercise_price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F4 · derivative.exercise_price: Represents: (i) 3,141,047 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 32,814 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 601,097 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 620,092 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 350,873 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "March 2022 Conversion Shares").

F4 · shares: Represents: (i) 3,141,047 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 32,814 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 601,097 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 620,092 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 350,873 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "March 2022 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F1 · derivative.exercise_date: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F9 · derivative.expiration_date: Not applicable.

F4 · derivative.underlying_shares: Represents: (i) 3,141,047 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 32,814 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 601,097 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 620,092 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 350,873 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "March 2022 Conversion Shares").

F7 · balance_after: Represents shares of Class B Common Stock held (prior to giving effect to the March 2022 Transfer (as defined below)) as follows: (i) 25,212,218 shares of Class B Common Stock held by EV XIV-A; (ii) 263,377 shares of Class B Common Stock held by EV XIV-WIC; (iii) 4,824,820 shares of Class B Common Stock held by EV XIV-2A; (iv) 4,977,295 shares of Class B Common Stock held by EV XIV-3A; and (v) 2,816,349 shares of Class B Common Stock held by EV XIV-C-AIV.

F11 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-22-033506 · tm229229-1_4seq1.xml · nonDerivative · entry 2

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 13,528,823

F12 · shares: Represents shares of Class A Common Stock sold in an underwritten block trade transaction pursuant to the Issuer's registration statement on Form S-3 filed with the SEC on August 10, 2018 (the "Block Trade"), as follows: (i) 3,141,047 shares of Class A Common Stock sold by EV XIV-A; (ii) 32,814 shares of Class A Common Stock sold by EV XIV-WIC; (iii) 601,097 shares of Class A Common Stock sold by EV XIV-2A; (iv) 620,092 shares of Class A Common Stock sold by EV XIV-3A; (v) 350,873 shares of Class A Common Stock sold by EV XIV-C-AIV; and (vi) 2,754,077 shares of Class A Common Stock sold by EV XIV-C.

F8 · price: This amount represents the purchase price in the Block Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of the Class B Common Stock under the March 2022 Transfer.

F13 · balance_after: EV XIV-C owns of record 13,528,823 shares of Class A Common Stock.

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-22-033506 · tm229229-1_4seq1.xml · nonDerivative · entry 1

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 21,028,823

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.

F4 · shares: Represents: (i) 3,141,047 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 32,814 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 601,097 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 620,092 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 350,873 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "March 2022 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F5 · balance_after: Represents the March 2022 Conversion Shares and 16,282,900 shares of Class A Common Stock held by EV XIV-C.

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001415889-22-002312 · form4-03032022_010351.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - GENERAL COUNSEL & SEC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 503,706

SEC source: 0001415889-22-002306 · form4-03032022_010337.xml · nonDerivative · entry 1

Stavros Christopher G · CIK 0001613357 · EXECUTIVE VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 577,168

SEC source: 0001415889-22-002293 · form4-03032022_010304.xml · nonDerivative · entry 1

Acosta Arcilia · CIK 0001629039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,425

F1 · shares: Reflects additional fully-vested restricted stock units ("RSUs") issued under the Magnolia Oil & Gas Corporation Long Term Incentive Plan with respect to dividend equivalent rights on previously deferred RSUs held by the reporting person, in connection with the payment of cash dividends to holders of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation on March 1, 2022. Each RSU represents a contingent right to receive one share of Class A Common Stock.

SEC source: 0001415889-22-002302 · form4-03032022_010343.xml · nonDerivative · entry 1

Millican Steve · CIK 0001757696 · SVP - OPERATIONS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 248,494

SEC source: 0001415889-22-002295 · form4-03032022_010306.xml · nonDerivative · entry 1

Busch Angela M · CIK 0001740094 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,530

F1 · shares: Reflects additional fully-vested restricted stock units ("RSUs") issued under the Magnolia Oil & Gas Corporation Long Term Incentive Plan with respect to dividend equivalent rights on previously deferred RSUs held by the reporting person, in connection with the payment of cash dividends to holders of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation on March 1, 2022. Each RSU represents a contingent right to receive one share of Class A Common Stock.

SEC source: 0001415889-22-002024 · form4-03012022_010348.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - GENERAL COUNSEL & SEC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 521,081

SEC source: 0001415889-22-002023 · form4-03012022_010319.xml · nonDerivative · entry 1

Stavros Christopher G · CIK 0001613357 · EXECUTIVE VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 599,857

SEC source: 0001415889-22-002022 · form4-03012022_010306.xml · nonDerivative · entry 1

Millican Steve · CIK 0001757696 · SVP - OPERATIONS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 258,130

SEC source: 0001415889-22-001564 · form4-02182022_010236.xml · derivative · entry 6

Yang Timothy D. · CIK 0001627951 · EVP - GENERAL COUNSEL & SEC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,864

Underlying: Class A Common Stock · 36,864 shares

Expires not disclosed

F4 · derivative.exercise_price: Reflects PRSUs granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in full on March 1, 2025, subject to the officer's continued employment through that date.

F4 · derivative.exercise_date: Reflects PRSUs granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in full on March 1, 2025, subject to the officer's continued employment through that date.

F4 · derivative.expiration_date: Reflects PRSUs granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in full on March 1, 2025, subject to the officer's continued employment through that date.

SEC source: 0001415889-22-001564 · form4-02182022_010236.xml · derivative · entry 5

Yang Timothy D. · CIK 0001627951 · EVP - GENERAL COUNSEL & SEC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,664

Underlying: Class A Common Stock · 35,664 shares

Expires not disclosed

F3 · derivative.exercise_price: Reflects performance restricted stock units ("PRSUs") granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in three substantially equal installments on March 1, 2023, 2024, and 2025, subject to the officer's continued employment through the applicable vesting date.

F3 · derivative.exercise_date: Reflects performance restricted stock units ("PRSUs") granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in three substantially equal installments on March 1, 2023, 2024, and 2025, subject to the officer's continued employment through the applicable vesting date.

F3 · derivative.expiration_date: Reflects performance restricted stock units ("PRSUs") granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in three substantially equal installments on March 1, 2023, 2024, and 2025, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001415889-22-001564 · form4-02182022_010236.xml · derivative · entry 4

Yang Timothy D. · CIK 0001627951 · EVP - GENERAL COUNSEL & SEC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 81,495 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.

F1 · derivative.exercise_price: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Yang's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · shares: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Yang's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · derivative.exercise_date: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Yang's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · derivative.expiration_date: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Yang's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · derivative.underlying_shares: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Yang's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

SEC source: 0001415889-22-001564 · form4-02182022_010236.xml · nonDerivative · entry 3

Yang Timothy D. · CIK 0001627951 · EVP - GENERAL COUNSEL & SEC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 530,831

F2 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan, as amended from time to time (the "Plan"). Each RSU represents a contingent right to receive one share of Class A Common Stock of the Company. The RSUs will vest in four substantially equal installments on March 1, 2023, 2024, 2025, and 2026, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001415889-22-001564 · form4-02182022_010236.xml · nonDerivative · entry 2

Yang Timothy D. · CIK 0001627951 · EVP - GENERAL COUNSEL & SEC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 529,631

SEC source: 0001415889-22-001564 · form4-02182022_010236.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - GENERAL COUNSEL & SEC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 554,532

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.

F1 · shares: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Yang's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · price: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Yang's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

SEC source: 0001415889-22-001566 · form4-02182022_010251.xml · derivative · entry 6

Stavros Christopher G · CIK 0001613357 · EXECUTIVE VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,125

Underlying: Class A Common Stock · 52,125 shares

Expires not disclosed

F4 · derivative.exercise_price: Reflects PRSUs granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in full on March 1, 2025, subject to the officer's continued employment through that date.

F4 · derivative.exercise_date: Reflects PRSUs granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in full on March 1, 2025, subject to the officer's continued employment through that date.

F4 · derivative.expiration_date: Reflects PRSUs granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in full on March 1, 2025, subject to the officer's continued employment through that date.

SEC source: 0001415889-22-001566 · form4-02182022_010251.xml · derivative · entry 5

Stavros Christopher G · CIK 0001613357 · EXECUTIVE VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,925

Underlying: Class A Common Stock · 50,925 shares

Expires not disclosed

F3 · derivative.exercise_price: Reflects performance restricted stock units ("PRSUs") granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in three substantially equal installments on March 1, 2023, 2024, and 2025, subject to the officer's continued employment through the applicable vesting date.

F3 · derivative.exercise_date: Reflects performance restricted stock units ("PRSUs") granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in three substantially equal installments on March 1, 2023, 2024, and 2025, subject to the officer's continued employment through the applicable vesting date.

F3 · derivative.expiration_date: Reflects performance restricted stock units ("PRSUs") granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in three substantially equal installments on March 1, 2023, 2024, and 2025, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001415889-22-001566 · form4-02182022_010251.xml · derivative · entry 4

Stavros Christopher G · CIK 0001613357 · EXECUTIVE VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 93,672 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.

F1 · derivative.exercise_price: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Stavros's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · derivative.exercise_date: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Stavros's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · derivative.expiration_date: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Stavros's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · derivative.underlying_shares: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Stavros's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

SEC source: 0001415889-22-001566 · form4-02182022_010251.xml · nonDerivative · entry 3

Stavros Christopher G · CIK 0001613357 · EXECUTIVE VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 613,650

F2 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan, as amended from time to time (the "Plan"). Each RSU represents a contingent right to receive one share of Class A Common Stock of the Company. The RSUs will vest in four substantially equal installments on March 1, 2023, 2024, 2025, and 2026, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001415889-22-001566 · form4-02182022_010251.xml · nonDerivative · entry 2

Stavros Christopher G · CIK 0001613357 · EXECUTIVE VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 612,450

SEC source: 0001415889-22-001566 · form4-02182022_010251.xml · nonDerivative · entry 1

Stavros Christopher G · CIK 0001613357 · EXECUTIVE VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 649,508

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.

F1 · shares: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Stavros's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · price: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Stavros's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

SEC source: 0001415889-22-001562 · form4-02182022_010215.xml · derivative · entry 6

Millican Steve · CIK 0001757696 · SVP - OPERATIONS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,601

Underlying: Class A Common Stock · 23,601 shares

Expires not disclosed

F4 · derivative.exercise_price: Reflects PRSUs granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in full on March 1, 2025, subject to the officer's continued employment through that date.

F4 · derivative.exercise_date: Reflects PRSUs granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in full on March 1, 2025, subject to the officer's continued employment through that date.

F4 · derivative.expiration_date: Reflects PRSUs granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in full on March 1, 2025, subject to the officer's continued employment through that date.

SEC source: 0001415889-22-001562 · form4-02182022_010215.xml · derivative · entry 5

Millican Steve · CIK 0001757696 · SVP - OPERATIONS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,401

Underlying: Class A Common Stock · 22,401 shares

Expires not disclosed

F3 · derivative.exercise_price: Reflects performance restricted stock units ("PRSUs") granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in three substantially equal installments on March 1, 2023, 2024, and 2025, subject to the officer's continued employment through the applicable vesting date.

F3 · derivative.exercise_date: Reflects performance restricted stock units ("PRSUs") granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in three substantially equal installments on March 1, 2023, 2024, and 2025, subject to the officer's continued employment through the applicable vesting date.

F3 · derivative.expiration_date: Reflects performance restricted stock units ("PRSUs") granted under the Plan. Each PRSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn either 0% or 100% of the target number of PRSUs reported above, based on the achievement of the specified stock appreciation goal during the performance period commencing February 16, 2022 and ending February 15, 2027. The PRSUs are also subject to service-based vesting conditions and will vest in three substantially equal installments on March 1, 2023, 2024, and 2025, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001415889-22-001562 · form4-02182022_010215.xml · derivative · entry 4

Millican Steve · CIK 0001757696 · SVP - OPERATIONS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 45,275 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.

F1 · derivative.exercise_price: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Millican's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · shares: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Millican's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · derivative.exercise_date: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Millican's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · derivative.expiration_date: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Millican's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

SEC source: 0001415889-22-001562 · form4-02182022_010215.xml · nonDerivative · entry 3

Millican Steve · CIK 0001757696 · SVP - OPERATIONS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 263,531

F2 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan, as amended from time to time (the "Plan"). Each RSU represents a contingent right to receive one share of Class A Common Stock of the Company. The RSUs will vest in four substantially equal installments on March 1, 2023, 2024, 2025, and 2026, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001415889-22-001562 · form4-02182022_010215.xml · nonDerivative · entry 2

Millican Steve · CIK 0001757696 · SVP - OPERATIONS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 262,331

SEC source: 0001415889-22-001562 · form4-02182022_010215.xml · nonDerivative · entry 1

Millican Steve · CIK 0001757696 · SVP - OPERATIONS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 280,404

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.

F1 · shares: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Millican's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

F1 · price: Reflects performance share units ("PSUs"), the grant of which was previously reported in Table II of Mr. Millican's Form 4 filed on February 27, 2019 (the "Prior Form 4"). Each PSU, to the extent earned, represented a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"), and the officer could earn between 0% and 150% of the target number of PSUs reported on the Prior Form 4, based on the Company's relative total shareholder return performance for the specified period and subject to the officer's continued employment through the date of settlement of the PSUs. On February 16, 2022, the Compensation Committee certified that the Company's relative total shareholder return performance resulted in the officer earning 150% of the target number of PSUs.

SEC source: 0001104659-22-012945 · tm225797-2_4.xml · derivative · entry 5

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,839,982

Underlying: Class A Common Stock · 1,449,185 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F16 · derivative.exercise_price: Represents: (i) 959,130 shares of Class B Common Stock transferred by EV XIV-A; (ii) 10,020 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 183,547 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 189,348 of Class B Common Stock transferred by EV XIV-3A; and (v) 107,140 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "February 2022 Transfer").

F16 · shares: Represents: (i) 959,130 shares of Class B Common Stock transferred by EV XIV-A; (ii) 10,020 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 183,547 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 189,348 of Class B Common Stock transferred by EV XIV-3A; and (v) 107,140 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "February 2022 Transfer").

F7 · price: This amount represents the purchase price in the 10b5-1 Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of the Class B Common Stock under the February 2022 Transfer, and EV XIV-C also used this price per share for the purchase price of the shares of the Class A Common Stock under the C-Fund Transfer.

F1 · derivative.exercise_date: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F8 · derivative.expiration_date: Not applicable.

F16 · derivative.underlying_shares: Represents: (i) 959,130 shares of Class B Common Stock transferred by EV XIV-A; (ii) 10,020 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 183,547 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 189,348 of Class B Common Stock transferred by EV XIV-3A; and (v) 107,140 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "February 2022 Transfer").

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F11 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

F17 · balance_after: EV XIV-A owns of record 28,353,265 shares of Class B Common Stock; EV XIV-2A owns of record 5,425,917 shares of Class B Common Stock; EV XIV-3A owns of record 5,597,387 shares of Class B Common Stock; EV XIV-WIC owns of record 296,191 shares of Class B Common Stock; and EV XIV-C-AIV owns of record 3,167,222 shares of Class B Common Stock.

SEC source: 0001104659-22-012945 · tm225797-2_4.xml · derivative · entry 4

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,289,167

Underlying: Class A Common Stock · 5,003,309 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.

F1 · derivative.exercise_price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F4 · derivative.exercise_price: Represents: (i) 3,311,396 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 34,593 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 633,696 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 653,722 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 369,902 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "February 2022 Conversion Shares").

F4 · shares: Represents: (i) 3,311,396 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 34,593 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 633,696 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 653,722 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 369,902 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "February 2022 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F1 · derivative.exercise_date: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F8 · derivative.expiration_date: Not applicable.

F4 · derivative.underlying_shares: Represents: (i) 3,311,396 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 34,593 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 633,696 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 653,722 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 369,902 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "February 2022 Conversion Shares").

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F6 · balance_after: Represents shares of Class B Common Stock held (prior to giving effect to February 2022 Transfer (as defined below)) as follows: (i) 29,312,395 shares of Class B Common Stock held by EV XIV-A; (ii) 306,211 shares of Class B Common Stock held by EV XIV-WIC; (iii) 5,609,464 shares of Class B Common Stock held by EV XIV-2A; (iv) 5,786,735 shares of Class B Common Stock held by EV XIV-3A; and (v) 3,274,362 shares of Class B Common Stock held by EV XIV-C-AIV.

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F11 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

SEC source: 0001104659-22-012945 · tm225797-2_4.xml · nonDerivative · entry 3

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,282,900

F13 · shares: Represents shares of Class A Common Stock transferred by EV XIV-C (the "C-Fund Transfer") concurrently with the February 2022 Transfer (as defined below).

F7 · price: This amount represents the purchase price in the 10b5-1 Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of the Class B Common Stock under the February 2022 Transfer, and EV XIV-C also used this price per share for the purchase price of the shares of the Class A Common Stock under the C-Fund Transfer.

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F15 · balance_after: After the 10b5-1 Trade and the C-Fund Transfer, EV XIV-C owns of record 16,282,900 shares of Class A Common Stock.

SEC source: 0001104659-22-012945 · tm225797-2_4.xml · nonDerivative · entry 2

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,833,715

F12 · shares: Represents shares of Class A Common Stock sold in a transaction pursuant to the 10b5-1 Sale Plan Agreement (the "Plan") entered into by the Record Holders on December 29, 2021 (the "10b5-1 Trade"). All sales contemplated by the Plan have been completed; the Plan is set to expire on February 10, 2022.

F7 · price: This amount represents the purchase price in the 10b5-1 Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of the Class B Common Stock under the February 2022 Transfer, and EV XIV-C also used this price per share for the purchase price of the shares of the Class A Common Stock under the C-Fund Transfer.

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F14 · balance_after: After the 10b5-1 Trade and prior to giving effect to the C-Fund Transfer, EV XIV-C owned of record 16,833,715 shares of Class A Common Stock.

SEC source: 0001104659-22-012945 · tm225797-2_4.xml · nonDerivative · entry 1

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,738,715

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.

F4 · shares: Represents: (i) 3,311,396 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 34,593 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 633,696 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 653,722 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 369,902 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "February 2022 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F5 · balance_after: Represents the February 2022 Conversion Shares and 18,735,406 shares of Class A Common Stock held by EV XIV-C.

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001104659-22-012944 · tm225797-1_4.xml · derivative · entry 6

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 42,839,982

Underlying: Class A Common Stock · 1,449,185 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.

F1 · derivative.exercise_price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F16 · derivative.exercise_price: Represents: (i) 959,130 shares of Class B Common Stock transferred by EV XIV-A; (ii) 10,020 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 183,547 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 189,348 of Class B Common Stock transferred by EV XIV-3A; and (v) 107,140 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "February 2022 Transfer").

F16 · shares: Represents: (i) 959,130 shares of Class B Common Stock transferred by EV XIV-A; (ii) 10,020 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 183,547 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 189,348 of Class B Common Stock transferred by EV XIV-3A; and (v) 107,140 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "February 2022 Transfer").

F8 · price: This amount represents the purchase price in the 10b5-1 Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of the Class B Common Stock under the February 2022 Transfer, and EV XIV-C also used this price per share for the purchase price of the shares of the Class A Common Stock under the C-Fund Transfer.

F1 · derivative.exercise_date: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F9 · derivative.expiration_date: Not applicable.

F16 · derivative.underlying_shares: Represents: (i) 959,130 shares of Class B Common Stock transferred by EV XIV-A; (ii) 10,020 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 183,547 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 189,348 of Class B Common Stock transferred by EV XIV-3A; and (v) 107,140 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "February 2022 Transfer").

F11 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

F17 · balance_after: EV XIV-A owns of record 28,353,265 shares of Class B Common Stock; EV XIV-2A owns of record 5,425,917 shares of Class B Common Stock; EV XIV-3A owns of record 5,597,387 shares of Class B Common Stock; EV XIV-WIC owns of record 296,191 shares of Class B Common Stock; and EV XIV-C-AIV owns of record 3,167,222 shares of Class B Common Stock.

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-22-012944 · tm225797-1_4.xml · derivative · entry 5

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 44,289,167

Underlying: Class A Common Stock · 5,003,309 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.

F1 · derivative.exercise_price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F4 · derivative.exercise_price: Represents: (i) 3,311,396 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 34,593 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 633,696 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 653,722 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 369,902 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "February 2022 Conversion Shares").

F4 · shares: Represents: (i) 3,311,396 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 34,593 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 633,696 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 653,722 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 369,902 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "February 2022 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F1 · derivative.exercise_date: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F9 · derivative.expiration_date: Not applicable.

F4 · derivative.underlying_shares: Represents: (i) 3,311,396 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 34,593 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 633,696 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 653,722 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 369,902 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "February 2022 Conversion Shares").

F7 · balance_after: Represents shares of Class B Common Stock held (prior to giving effect to February 2022 Transfer (as defined below)) as follows: (i) 29,312,395 shares of Class B Common Stock held by EV XIV-A; (ii) 306,211 shares of Class B Common Stock held by EV XIV-WIC; (iii) 5,609,464 shares of Class B Common Stock held by EV XIV-2A; (iv) 5,786,735 shares of Class B Common Stock held by EV XIV-3A; and (v) 3,274,362 shares of Class B Common Stock held by EV XIV-C-AIV.

F11 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-22-012944 · tm225797-1_4.xml · nonDerivative · entry 3

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 16,282,900

F13 · shares: Represents shares of Class A Common Stock transferred by EV XIV-C (the "C-Fund Transfer") concurrently with the February 2022 Transfer (as defined below).

F8 · price: This amount represents the purchase price in the 10b5-1 Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of the Class B Common Stock under the February 2022 Transfer, and EV XIV-C also used this price per share for the purchase price of the shares of the Class A Common Stock under the C-Fund Transfer.

F15 · balance_after: After the 10b5-1 Trade and the C-Fund Transfer, EV XIV-C owns of record 16,282,900 shares of Class A Common Stock.

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-22-012944 · tm225797-1_4.xml · nonDerivative · entry 2

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 16,833,715

F12 · shares: Represents shares of Class A Common Stock sold in a transaction pursuant to the 10b5-1 Sale Plan Agreement (the "Plan Agreement") entered into by the Record Holders on December 29, 2021 (the "10b5-1 Trade"). All sales contemplated by the Plan Agreement have been completed; the Plan Agreement is set to expire on February 10, 2022.

F8 · price: This amount represents the purchase price in the 10b5-1 Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of the Class B Common Stock under the February 2022 Transfer, and EV XIV-C also used this price per share for the purchase price of the shares of the Class A Common Stock under the C-Fund Transfer.

F14 · balance_after: After the 10b5-1 Trade and prior to giving effect to the C-Fund Transfer, EV XIV-C owned of record 16,833,715 shares of Class A Common Stock.

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-22-012944 · tm225797-1_4.xml · nonDerivative · entry 1

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 23,738,715

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.

F4 · shares: Represents: (i) 3,311,396 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 34,593 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 633,696 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 653,722 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 369,902 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "February 2022 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F5 · balance_after: Represents the February 2022 Conversion Shares and 18,735,406 shares of Class A Common Stock held by EV XIV-C.

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001415889-21-005051 · form4-11032021_011133.xml · nonDerivative · entry 1

Millican Steve · CIK 0001757696 · SVP - OPERATIONS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 235,129

SEC source: 0001104659-21-125496 · tm2129844-1_4seq1.xml · derivative · entry 3

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,292,476

Underlying: Class A Common Stock · 3,622,962 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.

F1 · derivative.exercise_price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F4 · derivative.exercise_price: Represents: (i) 2,397,825 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 25,049 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 458,868 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 473,369 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 267,851 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "October 2021 Conversion Shares").

F4 · shares: Represents: (i) 2,397,825 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 25,049 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 458,868 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 473,369 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 267,851 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "October 2021 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F1 · derivative.exercise_date: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F8 · derivative.expiration_date: Not applicable.

F4 · derivative.underlying_shares: Represents: (i) 2,397,825 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 25,049 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 458,868 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 473,369 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 267,851 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "October 2021 Conversion Shares").

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIVC- AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F6 · balance_after: Represents shares of Class B Common Stock held as follows: (i) 32,623,791 shares of Class B Common Stock held by EV XIV-A; (ii) 340,804 shares of Class B Common Stock held by EV XIV-WIC; (iii) 6,243,160 shares of Class B Common Stock held by EV XIV-2A; (iv) 6,440,457 shares of Class B Common Stock held by EV XIV-3A; and (v) 3,644,264 shares of Class B Common Stock held by EV XIV-C-AIV.

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F11 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

SEC source: 0001104659-21-125496 · tm2129844-1_4seq1.xml · nonDerivative · entry 2

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,735,406

F13 · shares: Represents shares of Class A Common Stock sold in a transaction pursuant to the 10b5-1 Sale Plan Agreements (the "Plans") entered into by the Record Holders on September 30, 2021 (the "10b5-1 Trade"). All sales contemplated by the Plans have been completed, and there are no securities available under the Plans remaining to be sold.

F7 · price: This amount represents the purchase price in the 10b5-1 Trade (as defined below).

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIVC- AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F12 · balance_after: EV XIV-C owns of record 18,735,406 shares of Class A Common Stock.

SEC source: 0001104659-21-125496 · tm2129844-1_4seq1.xml · nonDerivative · entry 1

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,735,406

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.

F4 · shares: Represents: (i) 2,397,825 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 25,049 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 458,868 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 473,369 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 267,851 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "October 2021 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIVC- AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F5 · balance_after: Represents the October 2021 Conversion Shares and 20,112,444 shares of Class A Common Stock held by EV XIV-C.

F9 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F10 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001104659-21-125497 · tm2129844-2_4seq1.xml · derivative · entry 4

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 49,292,476

Underlying: Class A Common Stock · 3,622,962 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.

F1 · derivative.exercise_price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F4 · shares: Represents: (i) 2,397,825 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 25,049 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 458,868 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 473,369 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 267,851 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "October 2021 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F1 · derivative.exercise_date: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F9 · derivative.expiration_date: Not applicable.

F4 · derivative.underlying_shares: Represents: (i) 2,397,825 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 25,049 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 458,868 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 473,369 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 267,851 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "October 2021 Conversion Shares").

F7 · balance_after: Represents shares of Class B Common Stock held as follows: (i) 32,623,791 shares of Class B Common Stock held by EV XIV-A; (ii) 340,804 shares of Class B Common Stock held by EV XIV-WIC; (iii) 6,243,160 shares of Class B Common Stock held by EV XIV-2A; (iv) 6,440,457 shares of Class B Common Stock held by EV XIV-3A; and (v) 3,644,264 shares of Class B Common Stock held by EV XIV-C-AIV.

F11 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-21-125497 · tm2129844-2_4seq1.xml · nonDerivative · entry 2

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 18,735,406

F13 · shares: Represents shares of Class A Common Stock sold in a transaction pursuant to the 10b5-1 Sale Plan Agreements (the "Plans") entered into by the Record Holders on September 30, 2021 (the "10b5-1 Trade"). All sales contemplated by the Plans have been completed, and there are no securities available under the Plans remaining to be sold.

F8 · price: This amount represents the purchase price in the 10b5-1 Trade (as defined below).

F12 · balance_after: EV XIV-C owns of record 18,735,406 shares of Class A Common Stock.

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-21-125497 · tm2129844-2_4seq1.xml · nonDerivative · entry 1

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 23,735,406

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.

F4 · shares: Represents: (i) 2,397,825 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 25,049 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 458,868 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 473,369 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 267,851 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "October 2021 Conversion Shares").

F1 · price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F5 · balance_after: Represents the October 2021 Conversion Shares and 20,112,444 shares of Class A Common Stock held by EV XIV-C.

F2 · ownership.nature: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A").

F3 · ownership.nature: EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C together, the "Record Holders"). Mr. Walker is an indirect owner and the Executive Chairman of EVM GP.

F10 · ownership.nature: Mr. Walker directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Equity Interests (as defined below) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-21-121368 · tm2128889-2_4seq1.xml · derivative · entry 4

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Energy Institutional Fund XIV-C, L.P. · CIK 0001634809 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,915,438

Underlying: Class A Common Stock · 3,000,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F8 · derivative.exercise_price: Represents: (i) 1,985,524 shares of Class B Common Stock transferred by EV XIV-A; (ii) 20,742 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 379,966 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 391,974 shares of Class B Common Stock transferred by EV XIV-3A; and (v) 221,794 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "September 2021 Transfer").

F8 · shares: Represents: (i) 1,985,524 shares of Class B Common Stock transferred by EV XIV-A; (ii) 20,742 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 379,966 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 391,974 shares of Class B Common Stock transferred by EV XIV-3A; and (v) 221,794 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "September 2021 Transfer").

F7 · price: This amount represents the purchase price in the Block Trade (as defined below). The Record Holders, other than EV XIV-C, also used this price per share for the purchase price of the shares of Class B Common Stock under the September 2021 Transfer.

F1 · derivative.exercise_date: Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

F9 · derivative.expiration_date: Not applicable.

F8 · derivative.underlying_shares: Represents: (i) 1,985,524 shares of Class B Common Stock transferred by EV XIV-A; (ii) 20,742 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 379,966 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 391,974 shares of Class B Common Stock transferred by EV XIV-3A; and (v) 221,794 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "September 2021 Transfer").

F2 · balance_after: EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

F3 · balance_after: EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIV-C-AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

F10 · balance_after: Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

F11 · balance_after: Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F12 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

F13 · balance_after: EV XIV-A owns of record 35,021,616 shares of Class B Common Stock; EV XIV-2A owns of record 6,702,028 shares of Class B Common Stock; EV XIV-3A owns of record 6,913,826 shares of Class B Common Stock; EV XIV-WIC owns of record 365,853 shares of Class B Common Stock; and EV XIV-C-AIV owns of record 3,912,115 shares of Class B Common Stock.