John W. Counts Colin A. Doolan Marc L. Buursink Celeste D. Lohr Javin J. Hatcherian Katherine L. French Jared T. Gooley Phuong A. Le Tracey J. Mercier Cheryl A. Woodall Christopher J. Schenk William H. Craddock 2025 <p>Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 5 million barrels of oil and 25 billion cubic feet of gas in conventional reservoirs and 361 million barrels of oil and 10,978 billion cubic feet of gas in continuous reservoirs in the Western Gulf Basin Province of the U.S. Gulf Coast region.</p> application/pdf 10.3133/fs20253015 en U.S. Geological Survey Assessment of undiscovered conventional and continuous oil and gas resources in the Escondido, Olmos, and San Miguel Formations of the Western Gulf Basin Province, U.S. Gulf Coast region, 2023 reports