Economics and the 1995 National Assessment of U.S. Oil and Gas Resources
 Emil D. Attanasi

  U. S. Geological Survey Open-File Report 95-75-M

Figure 2A. Estimated shares, as of January 1994, of crude oil that could be available for production during the next two decades through 2015. Sources consist of proved crude oil reserves, projected crude oil reserve additions through 2015 for fields discovered before 1992, estimates of economic crude oil in undiscovered conventional oil fields and economic crude oil from continuous-type oil accumulations. Estimates of economic oil assumed incremental costs of $30 per barrel. Total crude oil represented is 69 billion barrels.

Figure 2B. Estimated shares, as of January 1994, of non-associated gas that could be available for production during the next two decades through 2015. Sources consist of proved non-associated gas reserves, projected non-associated gas reserve additions through 2015 for fields discovered before 1992, estimates of economic non-associated gas in undiscovered conventional gas fields, economic gas in continuous-type gas accumulations, and economic coalbed gas. Estimates of economic gas assumed incremental costs of $3.34 per thousand cubic feet. Total quantity of non-associated gas represented is 381 trillion cubic feet.

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