THUMS D-213 Well Sidetrack Program at Island Freeman

THUMS Long Beach Co. is implementing a well sidetrack program for well D-213, identified by API 0423720483, located at Island Freeman in the Wilmington Oil Field offshore Los Angeles. Approved under permit 7057224 by the California Department of Conservation, Geologic Energy Management Division, the project focuses on adding pay from an existing well head and performing remedial rework operations to address well integrity issues. The scope includes reconstructing the casing and wellbores of existing wells on current well pads, specifically designed to avoid the need for new or expanded facilities. The project is classified as a forecast under NAICS code 213111 and is subject to strict regulatory compliance. It has been granted a Notice of Exemption from full California Environmental Quality Act review based on several categorical and statutory exemptions. Because the project is situated within a Health Protection Zone as defined by Public Resources Code section 3280(b), all operations must adhere to the health, safety, and environmental requirements of SB 1137. The project was certified on August 31, 2026, with primary coordination managed by the California Department of Conservation.