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
Table 1. Estimated economic oil, gas, and natural liquids (NGL) in undiscovered conventional oil and gas fields and in unconventional oil and gas accumulations in the United States, Jan. 1994.
| Conventional undiscovered oil fields | Unconventional oil accumulations | ||||||||||
| $18/bbl & $2/mcf | $30/bbl & $3.34/mcf | $18/bbl & $2/mcf | $30/bbl & $3.34 mcf | ||||||||
| Region | Oil | Assoc. Gas | NGL | Oil | Assoc. Gas | NGL | Oil | Assoc. Gas | Oil | Assoc. Gas | |
| (BBO) | (TCF) | (BBL) | (BBO) | (TCF) | (BBL) | (BBO) | (TCF) | (BBO) | (TCF) | ||
| REG. 1 | Alaska | 0.913 | 0.913 | 0.009 | 3.828 | 3.273 | 0.058 | 0.000 | 0.000 | 0.000 | 0.000 |
| REG. 2 | Pacific Coast | 1.669 | 2.206 | 0.091 | 2.590 | 3.413 | 0.143 | 0.000 | 0.000 | 0.000 | 0.000 |
| REG. 3 | Colorado Plat. & Bas. & Range | 0.572 | 1.807 | 0.077 | 0.840 | 2.275 | 0.106 | 0.145 | 0.072 | 0.374 | 0.254 |
| REG. 4 | Rocky Mt. & N. Great Plains | 1.730 | 2.911 | 0.411 | 2.975 | 4.049 | 0.596 | 0.000 | 0.000 | 0.040 | 0.398 |
| REG. 5 | W.Texas & E.N.Mexico | 2.023 | 3.000 | 0.305 | 2.748 | 4.007 | 0.395 | 0.000 | 0.000 | 0.000 | 0.000 |
| REG. 6 | Gulf Coast | 1.767 | 3.525 | 0.117 | 3.174 | 6.173 | 0.205 | 0.000 | 0.000 | 0.678 | 1.641 |
| REG. 7 | Midcontinent | 0.329 | 1.141 | 0.052 | 0.727 | 2.119 | 0.105 | 0.000 | 0.000 | 0.000 | 0.000 |
| REG. 8 | Eastern | 0.237 | 0.292 | 0.019 | 0.535 | 0.612 | 0.035 | 0.000 | 0.000 | 0.000 | 0.000 |
| TOTAL | UNITED STATES | 9.239 | 15.795 | 1.081 | 17.417 | 25.922 | 1.643 | 0.145 | 0.072 | 1.092 | 2.293 |
| Conventional undiscovered gas fields | Unconventional gas accumulations | ||||||||||
| $2/mcf | $3.34/mcf | $2/mcf | 3.34/mcf | ||||||||
| Gas | NGL | Gas | NGL | Gas | NGL | Gas | NGL | ||||
| (TCF) | (BBL) | (TCF) | (BBL) | (TCF) | (BBL) | (TCF) | (BBL) | ||||
| REG. 1 | Alaska | 0.120 | 0.000 | 0.283 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||
| REG. 2 | Pacific Coast | 1.201 | 0.013 | 2.726 | 0.024 | 0.000 | 0.000 | 0.330 | 0.000 | ||
| REG. 3 | Colorado Plat. & Bas. & Range | 1.667 | 0.017 | 3.062 | 0.033 | 20.793 | 0.014 | 29.600 | 0.017 | ||
| REG. 4 | Rocky Mt. & N. Great Plains | 8.473 | 0.688 | 10.996 | 0.808 | 6.887 | 0.000 | 13.622 | 0.049 | ||
| REG. 5 | W.Texas & E.N.Mexico | 6.070 | 0.133 | 8.999 | 0.206 | 0.000 | 0.000 | 0.000 | 0.000 | ||
| REG. 6 | Gulf Coast | 36.899 | 0.982 | 57.211 | 1.627 | 5.373 | 0.134 | 5.520 | 0.138 | ||
| REG. 7 | Midcontinent | 6.347 | 0.116 | 9.949 | 0.170 | 0.268 | 0.000 | 2.106 | 0.000 | ||
| REG. 8 | Eastern | 0.935 | 0.018 | 2.680 | 0.043 | 2.538 | 0.000 | 20.956 | 0.000 | ||
| TOTAL | UNITED STATES | 61.71 | 1.967 | 95.904 | 2.912 | 35.859 | 0.148 | 72.134 | 0.204 | ||
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