LandBridge Co LLC

(a) Disclosure in lieu of reporting on a Current Report on Form 8-K.

On August 4, 2026, OpCo entered into an amendment (the “Amendment”) to the 2025 Revolving Credit Facility to increase its aggregate revolving commitments from $275.0 million to $375.0 million through the exercise in full of the incremental commitment capacity available under the 2025 Revolving Credit Facility. Concurrently, the Amendment re-established an incremental commitment capacity of up to an additional $100.0 million, which may be exercised by OpCo from time to time, subject to the receipt of additional lender commitments and the satisfaction of the other conditions set forth in the 2025 Revolving Credit Facility.

The Amendment also reduced the applicable margins and letter of credit fees by 0.25%. As amended, Term SOFR Loans bear interest at Term SOFR for the applicable tenor plus a leverage-based applicable margin between 1.75% and 2.75% per annum, and Base Rate Loans bear interest at the applicable base rate plus a leverage-based applicable margin between 0.75% and 1.75% per annum.

(b) Material changes to the procedures by which security holders may recommend nominees to the board of directors.

None.

(c) Trading arrangements and policies.

During the three months ended June 30, 2026, none of our officers (as defined in Rule 16a-1(f) under the Exchange Act) or directors adopted orterminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(c) of Regulation S-K.