Assessment of undiscovered continuous gas resources in the Amu Darya Basin Province of Turkmenistan, Uzbekistan, Iran, and Afghanistan, 2017 - Schenk, Christopher; Tennyson, Marilyn; Mercier, Tracey; Hawkins, Sarah; Gaswirth, Stephanie B.; Marra, Kristen; Klett, Timothy R.; Le, Phuong A.; Brownfield, Michael; Woodall, Cheryl (Fact Sheet, 2017)