LandBridge Co LLC

The following are abbreviations and definitions of certain terms used in this document, many of which are commonly used in the industry:

1918 Acquisition. The acquisition of approximately 37,500 total acres across Reeves, Loving, Winkler and Ward counties, Texas, and certain related assets from 1918 Ranch & Royalty, LLC, completed in November 2025.

Bbl. One barrel of volume used for measuring oil.

Brackish water. Water with salinity levels between seawater and freshwater.

Completion. The process of preparing a well for the production of oil and gas by injecting high-pressure fluids mixed with proppants to create fractures in reservoir rock to enhance permeability.

Crude oil. A mixture of hydrocarbons that exists in liquid phase in natural underground reservoirs and remains liquid at atmospheric pressure after passing through surface separating facilities.

Delaware Basin. A geological depositional and structural basin in West Texas and southeastern New Mexico, which is a part of the Permian Basin.

E&P. Oil and natural gas exploration and production.

E&P companies. Oil and natural gas exploration and production companies, including producers and/or operators.

Five Point. Five Point Infrastructure LLC, a Delaware limited liability company and our legacy financial sponsor.

GAAP. Accounting principles generally accepted in the United States of America.

LandBridge. LandBridge Company LLC, a Delaware limited liability company (NYSE: LB; NYSE TX: LB), and its subsidiaries.

LandBridge Holdings. LandBridge Holdings LLC, a Delaware limited liability company and portfolio company of funds affiliated with Five Point.

LBH Management Units. Prior to May 1, 2026, management incentive units consisted of time-based awards of profits interests in LandBridge Holdings. Effective May 1, 2026, LandBridge Holdings recapitalized all outstanding equity interests of LandBridge Holdings, including management incentive units, into a single class of equity consisting of common units representing equity interests in LandBridge Holdings.

MBbls. One thousand barrels.

MBbl/d. One thousand barrels per day.

Mineral interest. Real-property interests that grant ownership of oil and natural gas under a tract of land and the rights to explore for, develop, and produce oil and natural gas on that land or to lease those exploration and development rights to a third party.

OpCo. DBR Land Holdings LLC, a Delaware limited liability company.

Operator. The individual or company responsible for the development and/or production of an oil or natural gas well.

Permian Basin. A large sedimentary basin located in West Texas and southeastern New Mexico.

Produced water. Water produced from an oil and natural gas well alongside crude oil and natural gas.

Produced water handling facilities. Facilities utilized for the treatment, handling and disposal of produced water.

Royalty. A real property interest that entitles the owner the right to receive a portion of the production (or the proceeds therefrom) produced from the underlying real property or a payment for the use of such underlying real property, and does not require the owner to pay any portion of the production or development costs.

SUAs. Surface use agreements.

SURAs. Surface use royalty agreements.

WaterBridge. WaterBridge Infrastructure LLC, a Delaware limited liability company (NYSE: WBI; NYSE TX: WBI), and its subsidiaries.

Wolf Bone Ranch Acquisition. The acquisition of approximately 46,000 largely contiguous surface acres in the Southern Delaware Basin, completed in December 2024.

WTI. West Texas Intermediate, a grade of crude oil commonly used in reference to pricing for crude oil.