An estimate of undiscovered conventional oil and gas resources of the world, 2012
Using a geology-based assessment methodology, we estimated means of 565 billion barrels of conventional oil and 5,606 trillion cubic feet of undiscovered conventional natural gas in 171 priority geologic provinces of the world, exclusive of the U.S.
by
Brownfield, Michael E.;
Charpentier, Ronald R.;
Cook, Troy A.;
Gautier, Donald L.;
Higley, Debra K.;
Kirschbaum, Mark A.;
Klett, Timothy R.;
Pitman, Janet K.;
Pollastro, Richard M.;
Schenk, Christopher J.;
Tennyson, Marilyn E.;
Wandrey, Craig J.; and
Whidden, Katherine J.
U.S. Geological Survey Fact Sheet 2012-3042
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