Katherine J. Whidden Stanley T. Paxton Scott A. Kinney Rand Gardner Janet K. Pitman Katherine L. French Tracey J. Mercier Cheryl A. Woodall Heidi M. Leathers-Miller Christopher J. Schenk Justin E. Birdwell 2024 <p><span>Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 143 million barrels of oil and 1,084 billion cubic feet of natural gas in conventional accumulations for the Upper Jurassic Smackover Formation in the onshore U.S. Gulf Coast region.</span></p> application/pdf 10.3133/fs20233046 en U.S. Geological Survey Assessment of undiscovered, technically recoverable conventional oil and gas resources in the Upper Jurassic Smackover Formation, U.S. Gulf Coast, 2022 reports