A42.4 Alternative consent when the registration statement contains or incorporates financial statements of more than one entity or reports of more than one auditor and we have audited financial statements and the effectiveness of internal control over financial reporting (for fiscal years ending on or after December 15, 2017)

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors
Magnolia Oil & Gas Corporation:

We consent to the use of our reports dated February 23, 2021, with respect to the consolidated balance sheets of Magnolia Oil & Gas Corporation as of December 31, 2020 and 2019, the related consolidated statements of operations, changes in stockholders’ equity, and cash flows for each of the years in the two-year period ended December 31, 2020 and for the period from July 31, 2018 to December 31, 2018 (Successor Period), and the related notes, and the effectiveness of internal control over financial reporting as of December 31, 2020, incorporated herein by reference.

/s/ KPMG LLP

Houston, Texas
May 14, 2021