William A. Rouse Catherine B. Enomoto Michael H. Trippi Timothy R. Klett Tracey J. Mercier Michael E. Brownfield Marilyn E. Tennyson Ronald M. Drake II Thomas M. Finn Nicholas J. Gianoutsos Ofori N. Pearson Colin A. Doolan Phuong A. Le Christopher J. Schenk Debra K. Higley 2016 <p>Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered, technically recoverable continuous resources that total 464 million barrels of oil and 4.08 trillion cubic feet of gas in the Lower Mississippian Sunbury Shale and Middle Devonian–Lower Mississippian Chattanooga Shale of the Appalachian Basin Province.</p> application/pdf 10.3133/fs20163085 en U.S. Geological Survey Assessment of undiscovered oil and gas resources of the Mississippian Sunbury shale and Devonian–Mississippian Chattanooga shale in the Appalachian Basin Province, 2016 reports