Assessment of undiscovered conventional oil and gas resources of the Volga-Ural Basin and Timan-Pechora Basin Provinces of Russia, 2020 - Schenk, Christopher; Mercier, Tracey; Ellis, Geoffrey; Woodall, Cheryl; Finn, Thomas; Tennyson, Marilyn; Le, Phuong; Leathers-Miller, Heidi; Drake II, Ronald (Fact Sheet, 2022)