X0306 4 2018-07-31 0 0001698990 Magnolia Oil & Gas Corp MGY 0001429772 MacDougall Michael G. C/O TPG GLOBAL, LLC 301 COMMERCE STREET, SUITE 3300 FORT WORTH TX 76102 1 0 0 0 Class A Common Stock 2018-07-31 4 A 0 97500 10.00 A 97500 I See Explanation of Responses Michael MacDougall is a TPG Partner. TPG is affiliated with TPG Pace Energy Sponsor, LLC, which directly holds an aggregate of 16,090,000 shares of Class A Common Stock, par value $0.0001 per share, of Magnolia Oil & Gas Corporation (the "Issuer"). Mr. MacDougall disclaims beneficial ownership of all of the securities that are or may be beneficially owned by TPG Pace Energy Sponsor, LLC or any of its affiliates. Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), this filing shall not be deemed an admission that Mr. MacDougall is, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owner of any equity securities of the Issuer for purposes of Section 16 of the Exchange Act or otherwise. Held through a personal vehicle. (4) Michael LaGatta is signing on behalf of Mr. MacDougall pursuant to the authorization and designation letter dated April 28, 2017, which was previously filed with the Securities and Exchange Commission. /s/ Michael LaGatta on behalf of Michael MacDougall (4) 2018-08-02