Marilyn E. Tennyson Tracey J. Mercier Sarah J. Hawkins Thomas M. Finn Stephanie B. Gaswirth Kristen R. Marra Timothy R. Klett Phuong A. Le Heidi M. Leathers-Miller Cheryl A. Woodall Christopher J. Schenk 2017 <p>Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered, technically recoverable conventional resources of 1.1 billion barrels of oil and 2.2 trillion cubic feet of gas in the West Korea Bay–North Yellow Sea Basin, North Korea and China.</p> application/pdf 10.3133/fs20173041 en U.S. Geological Survey Assessment of undiscovered conventional oil and gas resources in the West Korea Bay–North Yellow Sea Basin, North Korea and China, 2017 reports