EnerVest, Ltd. - 23 Sep 2024 Form 4 Insider Report for Magnolia Oil & Gas Corp (MGY)

Footnote F1

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).

Footnote F2

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").

Footnote F3

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").

Footnote F4

Represents: (i) 3,265,817 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 34,117 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 624,974 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 644,724 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) 364,810 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 "September 2024 Conversion Shares").

Footnote F5

Represents the September 2024 Conversion Shares and 4,164,961 shares of Class A Common Stock held by EV XIV-C.

Footnote F6

Represents shares of Class B Common Stock held (prior to giving effect to the September 2024 Transfer (as defined below)) as follows: (i) 3,986,590 shares of Class B Common Stock held by EV XIV-A; (ii) 41,639 shares of Class B Common Stock held by EV XIV-WIC; (iii) 762,906 shares of Class B Common Stock held by EV XIV-2A; (iv) 787,018 shares of Class B Common Stock held by EV XIV-3A; and (v) 445,326 shares of Class B Common Stock held by EV XIV-C-AIV.

Footnote F7

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 September 2024 Transfer.

Footnote F8

Not applicable.

Footnote F9

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.

Footnote F10

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.

Footnote F11

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.")

Footnote F12

Represents shares of Class A Common Stock sold in a block trade transaction entered into by the Record Holders on September 23, 2024, which transaction closed on September 25, 2024 (the "Block Trade"), as follows: (i) 3,265,817 shares of Class A Common Stock sold by EV XIV-A; (ii) 34,117 shares of Class A Common Stock sold by EV XIV-WIC; (iii) 624,974 shares of Class A Common Stock sold by EV XIV-2A; (iv) 644,724 shares of Class A Common Stock sold by EV XIV-3A; (v) 364,810 shares of Class A Common Stock sold by EV XIV-C-AIV; and (vi) 2,065,558 shares of Class A Common Stock sold by EV XIV-C.

Footnote F13

EV XIV-C owns of record 2,099,403 shares of Class A Common Stock.

Footnote F14

Represents: (i) 330,921 shares of Class B Common Stock transferred by EV XIV-A; (ii) 3,457 shares of Class B Common Stock transferred by EV XIV-WIC; (iii) 63,328 shares of Class B Common Stock transferred by EV XIV-2A; (iv) 65,329 shares of Class B Common Stock transferred by EV XIV-3A; and (v) 36,965 shares of Class B Common Stock transferred by EV XIV-C-AIV (collectively, the "September 2024 Transfer").

Footnote F15

EV XIV-A owns of record 3,655,669 shares of Class B Common Stock; EV XIV-2A owns of record 699,578 shares of Class B Common Stock; EV XIV-3A owns of record 721,689 shares of Class B Common Stock; EV XIV-WIC owns of record 38,182 shares of Class B Common Stock; and EV XIV-C-AIV owns of record 408,361 shares of Class B Common Stock.