X0609 4 2026-03-17 0002029118 INFINITY NATURAL RESOURCES, INC. INR 0001086699 GRAY STEVEN D C/O INFINITY NATURAL RESOURCES, INC. 2605 CRANBERRY SQUARE MORGANTOWN WV 26508 true false false false false Class A Common Stock 2026-03-17 4 M false 17411 A 17411 D Class A Common Stock 50000 I By: SD Gray Family Partnership LP Class A Common Stock 15000 I By: The Gray Management Trust Restricted Stock Units (2025) 2026-03-17 4 M false 17411 0 D Class A Common Stock 17411 0 D Reflects shares of Class A common stock, $0.01 par value per share (the "Common Stock"), of the Issuer delivered upon vesting and settlement of previously awarded restricted stock units ("RSUs"). Each RSU represents the contingent right to receive one share of Common Stock. The Reporting Person exercises 100% control over SD Gray Family Partnership LP ("Gray Family Partnership"). Gray Family Partnership is managed by its general partner, SD Gray Management Co., of which the Reporting Person is the chief executive. By virtue of the relationship, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by Gray Family Partnership, but the Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly. These securities are owned by The Gray Management Trust, of which the Reporting Person is a trustee and beneficiary. By virtue of the relationship, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by The Gray Management Trust, but the Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly. On March 17, 2025, the Reporting Person was granted 17,411 RSUs, which vested in full on the first anniversary of the grant date. /s/ Raleigh Wolfe, as Attorney-in-Fact for the Reporting Person 2026-03-19