Entry into a Material Definitive Agreement. Third Amendment to Credit Agreement On October 27, 2026, WhiteHawk Income Operating Partnership L.P. (the “Borrower”), a subsidiary of Whitehawk Minerals Corp. (the “Company”), entered into the Third Amendment (the “Third Amendment”) to Amended and Restated Credit Agreement, dated as of May 25, 2026 (as previously amended, the “Credit Agreement”), among the Company, as Parent, the Borrower, WhiteHawk Income OP GP LLC, as general partner of the Borro…

Entry into a Material Definitive Agreement. On October 6, 2026, WhiteHawk Minerals Corp. (the “Company”) entered into a Dealer Manager Agreement (the “Dealer Manager Agreement”) with Preferred Capital Securities, LLC (the “Dealer Manager”), pursuant to which the Dealer Manager has agreed to serve as the Company’s agent and dealer manager for the Company’s offering (the “Offering”) of up to 100,000 shares (the “Shares”) of Series F Redeemable Preferred Stock, par value $0.0001 per share (the “…

The Series E Preferred Stock was offered and sold in reliance upon the exemption from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), pursuant to Section 4(a)(2) thereof and Rule 506(b) of Regulation D promulgated thereunder, as a transaction by an issuer not involving a public offering. Each of the Investors represented that it is an “accredited investor” as defined in Regulation D and that it acquired the shares of Series E Preferred Stock for…

Entry into a Material Definitive Agreement. Purchase and Sale Agreement As previously reported on August 12, 2026, WhiteHawk Income Marcellus LLC and WhiteHawk Income Haynesville LLC (collectively, the “Buyers”), each indirect wholly owned subsidiaries of WhiteHawk Minerals Corp. (the “Company”), entered into a Purchase and Sale Agreement (the “PSA”) with Three Rivers Royalty II, LLC and Cypress Mineral Partners, LLC (collectively, the “Sellers”), pursuant to which the Buyers agreed to acquir…

Completion of Acquisition or Disposition of Assets. On September 25, 2026, the Company completed the SJM II Acquisition. The information set forth under “

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under “

Unregistered Sales of Equity Securities. The information contained in

Entry into a Material Definitive Agreement. Securities Purchase Agreement On September 18, 2026, WhiteHawk Minerals Corp., a Delaware corporation (the “Company”), entered into a Securities Purchase Agreement (the “Purchase Agreement”) with each of the investors named therein (collectively, the “Investors”), for the private placement (the “Private Placement”) of 2,873,563 shares (the “Shares”) of the Company’s Class A common stock, par value $0.0001 per share (the “Common Stock”), at a purchas…

Entry into a Material Definitive Agreement. Purchase and Sale Agreement On August 12, 2026, WhiteHawk Income Marcellus LLC and WhiteHawk Income Haynesville LLC (collectively, the “Buyers”), each indirect wholly owned subsidiaries of WhiteHawk Minerals Corp. (the “Company”), entered into a Purchase and Sale Agreement (the “PSA”) with Three Rivers Royalty II, LLC and Cypress Mineral Partners, LLC (collectively, the “Sellers”), pursuant to which the Buyers agreed to acquire certain mineral inter…

Regulation FD Disclosure. On August 12, 2026, the Company issued a press release announcing the SJM II Acquisition, its financial results for the fiscal quarter ended June 30, 2026, and the initiation of a quarterly cash dividend. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The Company also posted an updated investor presentation on the Company’s investor relations website at https://investors.whitehawkminerals.com. A copy of the investor prese…

and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Entry into a Material Definitive Agreement In connection with the initial public offering (the “Offering”) by WhiteHawk Minerals Corp. (the “Company”) of its Class A Common Stock, par value $0.0001 (the “Common Stock”), described in the prospectus (the “Prospectus”), dated June 8, 2026, filed with the Securities and Exchange Commission (the “Commission”) pursuant to Rule 424(b) of the Securities Act of 1933, as amended (the “Securities Act”), which is deemed to be part of the Registration Sta…

Material Modification to Rights of Security Holders In connection with and prior to the Offering, the Company redeemed all outstanding shares of the Company’s Series D preferred stock, par value $0.0001 per share (the “Series D Preferred Stock”). The Series D Preferred Stock was redeemed for $1,000 per share, plus all accrued but unpaid dividends thereon, if any, plus, if applicable, an additional amount such that each holder receives the Minimum Return (as defined in the Certificate of Desig…

CEO — Daniel Herz: The filing discloses the appointment of a new CEO and other senior officers in connection with a corporate transaction (Internalization and Offering), which is a significant management change but not a departure.

Completion of Acquisition or Disposition of Assets Internalization In connection with and in order to effectuate the Internalization (as defined in the Registration Statement), on June 9, 2026, the Company, WhiteHawk OpCo, the Management Contributor and ManagementCo entered into the Contribution Agreement, pursuant to which WhiteHawk OpCo acquired all of the outstanding equity interests in ManagementCo from the Management Contributor in exchange for the issuance on June 10, 2025 of 3,750,000…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant The information set forth above in

Unregistered Sales of Equity Securities In connection with the Internalization, on June 10, 2026, the Company issued 3,750,000 shares of Class B Common Stock to the Management Contributor, on a one-to-one basis equal to the number of common units of WhiteHawk OpCo it owns. No underwriters were involved in the issuance and sale of the shares of Class B Common Stock. The shares of Class B Common Stock were issued in reliance upon an exemption from registration pursuant to Section 4(a)(2) of the…