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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 4.  Estimated volumes by Region, at two levels of cost, of economically recoverable oil, gas, and natural gas liquids (NGL) in undiscovered conventional, continuous-type and coalbed gas accumulations in onshore Federal Lands as of January 1994. Volumes; BBO, billions of barrels oil; TCF, trillions of cubic feet, BBL, billions of barrels; bbl, barrels; mcf, thousands of cubic feet]

 

Conventional Undiscovered

         
 

$18/bbl, $2/mcf

$30/bbl, $3.34/mcf

   

Region

Oil

Gas

NGL

Oil

Gas

NGL

   
 

(BBO)

(TCF)

(BBL)

(BBO)

(TCF)

(BBL)

   

1. Alaska

0.5

0.5

0.01

1.38

1.23

0.02

   

2. Pacific Coast

0.03

0.01

0

0.07

0.04

0

   

3. Colorado Plt. & Basin and Range

0.33

1.75

0.04

0.48

2.92

0.07

   

4. Rock Mtn. & N. Great Plains

0.74

7.35

0.66

1.31

9.2

0.76

   

5. West Texas & E. New Mexico

0

0

0

0.01

0.03

0

   

6. Gulf Coast

0.01

0

0

0.03

0

0

   

7. Midcontinent

0

0.07

0

0

0.19

0.01

   

8. Eastern

0

0

0

0

0

0

   

Total Federal Onshore

1.6

9.67

0.71

3.29

13.61

0.85

   
 

Unconventional accumulations

         
 

Continuous-type

Coalbed

Continuous-type

Coalbed

 

$18/bbl, $2/mcf

$2/mcf

$30/bbl, $3.34/mcf

$3.34/mcf

Region

Oil

Gas

NGL

Gas

Oil

Gas

NGL

Gas

 

(BBO)

(TCF)

(BBL)

(TCF)

(BBO)

(TCF)

(BBL)

(TCF)

1. Alaska

0

0

0

0

0

0

0

0

2. Pacific Coast

0

0

0

0

0

0

0

0.03

3. Colorado Plt. & Basin and Range

0.06

5.01

0.01

6.56

0.21

6.53

0.01

10.03

4. Rock Mtn. & N. Great Plains

0

1

0

0.27

0

3.7

0.04

1.44

5. West Texas & E. New Mexico

0

0

0

0

0

0

0

0

6. Gulf Coast

0

0.13

0

0

0

0.14

0

0

7. Midcontinent

0

0

0

0

0

0

0

0.18

8. Eastern

0

0

0

0.13

0

1.06

0

0.15

Total Federal Onshore

0.06

6.14

0.01

6.96

0.21

11.43

0.06

11.83

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