X0609 4 2026-06-02 0002029118 INFINITY NATURAL RESOURCES, INC. INR 0001477713 Gieselman Scott false C/O INFINITY NATURAL RESOURCES, INC. 2605 CRANBERRY SQUARE MORGANTOWN WV 26508 true false false false false Class A Common Stock 2026-06-02 4 P false 13430 13.353 A 84330 I By CMR Family Investments LLC Class A Common Stock 2026-06-03 4 P false 670 13.441 A 85000 I By CMR Family Investments LLC Class A Common Stock 13929 D The price reported in Column 4 is a weighted average price. These shares of Class A common stock were purchased by the Reporting Person in multiple transactions at prices ranging from $13.11 to $13.48, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4. The price reported in Column 4 is a weighted average price. These shares of Class A common stock were purchased by the Reporting Person in multiple transactions at prices ranging from $13.36 to $13.50, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote (2) to this Form 4. The Reporting Person, as investment manager, exercises control over the investment decisions of CMR Family Investments LLC. The Reporting Person is also a member of CMR Family Investments LLC. By virtue of these relationships, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by CMR Family Investments LLC, 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. /s/ Raleigh Wolfe, as Attorney-in-Fact for the Reporting Person 2026-06-03