1995 National Oil and Gas
Assessment and Onshore Federal Lands
Donald L. Gautier, Gordon L. Dolton and Emil D. Attanasi
U. S. Geological Survey Open-File Report
95-75-N
January 1998
Table 1. Total estimated volumes in onshore Federal Lands of technically recoverable and economically recoverable oil, gas, and natural gas liquids (NGL) in undiscovered conventional, continuous-type, and colbaed gas accumulations as of January 1994. Volumes, BBO; billions of barrels of oil, TCF; trillions of feet gas, BBL; billions of barrels of NGL, Costs; bbl, barrel; mcf, thousand cubic feet]
Technically recoverable |
Economically*** Recoverable at |
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F95 |
Mean |
F05 |
$18/bbl, $/mcf |
$30/bbl, $3.34/mcf |
|
Conventional Undiscovered |
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Oil (BBO) |
4.4 |
7.5 |
12.8 |
1.6 |
3.3 |
Gas (TCF) |
34 |
57.9 |
96.8 |
9.7 |
13.6 |
NGL (BBL) |
1.1 |
1.8 |
2.7 |
0.7 |
0.9 |
Continuous-type accumulations* |
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Oil (BBO) |
0.2 |
0.3 |
0.6 |
0.1 |
0.2 |
Gas (TCF) |
72.4 |
127.1 |
202.4 |
6.1 |
11.4 |
NGL (BBL) |
0.1 |
1.5 |
2.6 |
0 |
0.1 |
Coalbed gas** |
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Gas (TCF) |
13 |
16.1 |
19.6 |
7 |
11.8 |
| *Technically recoverable
based on Crovelli and Schmoker, 1997. **Technically recoverable based on Crovelli and Nuccio, 1997. ***Includes costs of finding, developing and producing the resource. Based on mean values of technically recoverable estimate. |
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