Christopher J. Schenk Tracey J. Mercier Marilyn E. Tennyson Thomas M. Finn Cheryl A. Woodall Heidi M. Leathers-Miller Kristen R. Marra Phuong A. Le Ronald M. Drake II Michael E. Brownfield Janet K. Pitman Christopher J. Potter 2019 <p>Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 1.2 billion barrels of tight oil and 29.1 trillion cubic feet of tight gas in Mesozoic formations in the Sichuan Basin of China.</p> application/pdf 10.3133/fs20193010 en U.S. Geological Survey Assessment of Mesozoic tight-oil and tight-gas resources in the Sichuan Basin of China, 2018 reports