Assessment of undiscovered conventional oil and gas resources of the Grand Erg/Ahnet Province, Algeria, 2018 - Schenk, Christopher; Mercier, Tracey; Tennyson, Marilyn; Finn, Thomas; Le, Phuong; Pitman, Janet; Drake II, Ronald M.; Brownfield, Michael; Gaswirth, Stephanie; Leathers-Miller, Heidi (Fact Sheet, 2019)