Christopher J. Schenk Tracey J. Mercier Heidi M. Leathers-Miller Marilyn E. Tennyson Thomas M. Finn Cheryl A. Woodall Michael E. Brownfield Phuong A. Le Ronald M. Drake II Kristen R. Marra 2020 <p><span>Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 39 trillion cubic feet of gas within continuous and conventional reservoirs of the Fruitland Total Petroleum System in the San Juan Basin Province, New Mexico and Colorado.</span></p> application/pdf 10.3133/fs20203047 en U.S. Geological Survey Assessment of undiscovered gas resources of the Fruitland Total Petroleum System, San Juan Basin Province, New Mexico and Colorado, 2020 reports