Permian

Subsidiary: Apache Corporation

Apache was founded in the U.S in 1954 and has operated across multiple basins throughout its history. Since 1992, its corporate headquarters have been in Houston, Texas, the center of the global natural gas and oil industry. The company’s U.S. producing assets are primarily located in the Permian Basin of West Texas, including the Midland and Delaware sub-basins, with additional legacy operations offshore in the Gulf of America.

Apache has operated in the Permian Basin since the 1990s. The region plays a central role in the company’s long-term strategy, offering both conventional and unconventional development opportunities. As of Dec. 31, 2025, the company had nearly 4,000 wells across 2.6 million gross acres, primarily in the Midland and Delaware Basins. Apache’s estimated proved reserves of 781 million barrels of oil equivalent (MMboe) represent 74% of its worldwide proved reserves. In 2025, U.S. total production reached 105 MMboe, accounting for 62% of total production.

Apache’s presence in the Gulf Coast and the Gulf of America includes fee acreage in southern Louisiana and interests in deepwater exploration and development. In Louisiana, the company manages 270,000 acres of land to help protect swamps, marshes and native species. Apache’s conservation efforts include rebuilding shorelines to prevent saltwater intrusion that harms marsh grasses and supporting sustainable harvesting and ranching practices that have helped restore alligator populations.

In the Gulf of America, Apache holds interests in several deepwater exploration and development leases. In 2013, the company sold its offshore assets in water depths less than 1,000 feet, but retained a 50% ownership interest in deeper prospects and access to existing infrastructure, providing strategic flexibility for future development.

Alaska

Subsidiary: APA Corporation

Separately, APA Corporation holds approximately 325,000 gross acres (163,000 net acres) of undeveloped acreage on the North Slope of Alaska. During 2025, the Company and its partners announced preliminary results of an exploratory well in Alaska, confirming the successful discovery of a reservoir. A successful flow test of the well was announced in 2025, with the well averaging 2,700 b/d during the final flow period. The Company continues to evaluate data from the well, and further appraisal drilling will determine the ultimate size of the discovery.

For the latest on Apache’s U.S. operations, see the company’s quarterly updates and disclosures on the Investors page.