Revision History for U.S. Geological Survey Fact Sheet 2018–3028 By Christopher J. Schenk, Marilyn E. Tennyson, Tracey J. Mercier, Cheryl A. Woodall, Thomas M. Finn, Stephanie B. Gaswirth, Phuong A. Le, Michael E. Brownfield, Kristen R. Marra, and Heidi M. Leathers-Miller Assessment of Undiscovered Oil and Gas Resources in the Midlands Area, England, 2018 ----------------------------------------------------- Posted online July 5, 2018 ----------------------------------------------------- Revised and reposted August 20, 2018 The text version was modified in two places. "8 trillion cubic feet of gas" was changed to "8.3 trillion cubic feet of gas" on p. 1 in the abstract, the short section that appears after the title. "8.2 trillion cubic feet of gas" was changed to "8.3 trillion cubic feet of gas" in the "Undiscovered Resources Summary" section. The assessment numbers in table 2 were correct and were not changed.