LandBridge Co LLC

Related Party Transactions

Shared Services Agreement

The Company is party to a services agreement with WaterBridge Operating LLC (“WaterBridge Operating”), an affiliate of the Company, and other affiliates pursuant to which the Company receives common management and general, administrative, overhead and operating services in support of the Company’s operations and development activities. The Company reimburses all fees incurred by WaterBridge Operating or its affiliates for services provided to the Company under the agreement. For shared services, the basis of allocation is an approximation of time spent on activities supporting the Company. For shared expenses paid on behalf of the Company, the costs are directly allocated to the Company based on its pro rata share of the expenses. For the three months ended June 30, 2025 and 2024 the Company paid approximately$2.6 million and$1.0 million for the shared services and direct cost reimbursements, respectively. For the six months ended June 30, 2025 and 2024, the Company paid approximately$5.6 million and$2.1 million for the shared services and direct cost reimbursements, respectively.

Affiliate Access Agreements

The Company is party to facility access and surface use agreements and easements and rights-of-way with WaterBridge Texas Midstream LLC, WaterBridge Stateline LLC and Desert Environmental, each an affiliate of the Company. Under these agreements, the Company has granted such affiliates certain rights to construct, operate and maintain produced water, brackish water and waste reclamation facilities on our land, as applicable, in the ordinary course of business. Each of these agreements includes a standard fee schedule and provision for specified surface use activities. Each of these agreements also includes a provision for royalties related to certain specified activities.

Equity Sponsor Services Agreement

Five Point Infrastructure LLC (“Five Point”), our financial sponsor, invoices the Company, and the Company reimburses Five Point in cash, for expenses associated with the Company’s use of Five Point’s geographic information system (“GIS”) and certain legal services provided by Five Point. The reimbursement includes allocated Five Point personnel costs and third-party software and hardware expenses and is determined based on the Company’s use of Five Point’s total services for such period. The Company recognized general and administrative expense related to GIS and legal services of$0.1 million in each of the three months ended June 30, 2025 and 2024 and$0.2 million for each of the six months ended June 30, 2025 and 2024.