Mach Natural Resources LP Announces Exercise of Over-Allotment Option

Mach Natural Resources LP (NYSE: MNR) (“Mach” or the “Company”) announced today that the underwriters of its previously announced public offering of 7,272,728 common units representing limited partner interests in Mach (the “common units”) have partially exercised their option to purchase an additional 1,018,465 common units at a price to the public of $16.50 per common unit, less underwriting discounts and commissions (the “Option”). The Option closed on September 24, 2024.

Mach intends to use the net proceeds to fund pending acquisitions and for general partnership purposes, which may include future acquisitions.

Raymond James & Associates, Inc., Stifel, Nicolaus & Company, Incorporated and Truist Securities, Inc. are acting as joint book-running managers for the offering. Johnson Rice & Company L.L.C. and Stephens Inc. are serving as co-managers for the offering. The offering of these securities is being made only by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended. A copy of the final prospectus may be obtained from any of the following sources:

Raymond James & Associates, Inc.

Attention: Syndicate

Stifel, Nicolaus & Company, Incorporated

Attention: Syndicate Department

Truist Securities, Inc

Attention: Equity Capital Markets

880 Carillon Parkway

1 South Street, 15th Floor

3333 Peachtree Road NE, 9th Floor

St. Petersburg, Florida 33716

Baltimore, MD 21202

Atlanta, GA 30326

Telephone: [phone]

Telephone: [phone]

Telephone: [phone]

Email: [e-mail]

Email: [e-mail]

Email: [e-mail]

Important Information

A registration statement relating to these securities has been filed with, and declared effective by, the Securities and Exchange Commission (the “SEC”) on September 6, 2024. This press release does not constitute an offer to sell or the solicitation of an offer to buy securities, and shall not constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of that jurisdiction.

About Mach Natural Resources LP

Mach Natural Resources LP is an independent upstream oil and gas Company focused on the acquisition, development and production of oil, natural gas and NGL reserves in the Anadarko Basin region of Western Oklahoma, Southern Kansas and the panhandle of Texas.

Cautionary Note Regarding Forward-Looking Statements

This release contains statements that express Mach’s opinions, expectations, beliefs, plans, objectives, assumptions or projections regarding future events or future results, in contrast with statements that reflect historical facts. All statements, other than statements of historical fact included in this release regarding our strategy, future operations, prospects, plans and objectives of management are forward-looking statements. When used in this release, words such as “may,” “assume,” “forecast,” “could,” “should,” “will,” “plan,” “believe,” “anticipate,” “intend,” “estimate,” “expect,” “project,” “budget” and similar expressions are used to identify forward-looking statements, although not all forward-looking statements contain such identifying words. These forward-looking statements are based on management’s current belief, based on currently available information as to the outcome and timing of future events at the time such statement was made. Such statements are subject to a number of assumptions, risk and uncertainties, many of which are beyond the control of Mach, including prevailing market conditions and other factors. Please read Mach’s filings with the SEC, including “Risk Factors” in Mach’s Annual Report on Form 10-K, which is on file with the SEC, for a discussion of risks and uncertainties that could cause actual results to differ from those in such forward-looking statements.

As a result, these forward-looking statements are not a guarantee of our performance, and you should not place undue reliance on such statements. Any forward-looking statement speaks only as of the date on which such statement is made, and Mach undertakes no obligation to correct or update any forward-looking statement, whether as a result of new information, future events or otherwise.

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Mach Natural Resources LP Investor Relations Contact: [e-mail]