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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 A-3.  Estimated volumes by province of technically recoverable undiscovered conventional oil, gas, and natural gas liquids (NGL) for onshroe Federal Lands as of January 1994.

CRUDE OIL

GAS

NGL

PROVINCE

BILLIONS OF BARRELS

TRILLIONS OF CUBIC FEET

BILLIONS OF BARRELS

NUMBER and NAME

F95

F05

MEAN

F95

F05

MEAN

F95

F05

MEAN

Region 1. Alaska

1. Northern Alaska

0.78

8.55

3.48

9.67

68.38

32.2

0.17

1.11

0.54

2. Central Alaska

0

0.17

0.03

0.17

4.08

1.38

0

0

0

3. Southern Alaska

0

0.87

0.24

0.02

1.21

0.38

0

0

0

Total Region 1.

0.98

8.96

3.75

11.28

69.97

33.97

0.17

1.1

0.54

Region 2. Pacific Coast

4.W. Oregon-Wash.

0

0.02

0

0

0.23

0.05

0

0

0

5. E. Oregon-Wash.

0

0

0

0

0.48

0.1

0

0

0

7. Northern Coastal

0

0

0

0

0

0

0

0

0

8. Sonoma-Liver. Bs.

0

0.01

0

0

0.07

0.01

0

0

0

9. Sacramento Basin

0

0

0

0

0.26

0.07

0

0

0

10. San Joaquin Basin

0

0.1

0.02

0

0.2

0.04

0

0.01

0

11. Central Coastal

0.02

0.45

0.16

0.01

0.16

0.06

0

0.01

0

12. Santa Maria Basin

0

0.04

0.01

0

0.03

0.01

0

0

0

13. Ventura Basin

0.01

0.23

0.09

0.02

0.45

0.16

0

0.02

0.01

14. Los Angeles Basin

0

0.08

0.01

0

0.23

0.04

0

0.01

0

Total Region 2.

0.1

0.66

0.3

0.2

1.36

0.55

0

0.03

0.01

Region 3. Colorado Plateau and Basin Range

17. Idaho-Snake R. DW.

0

0.01

0

0

0.06

0.01

0

0

0

18. W. Great Basin

0

0

0

0

0.03

0

0

0

0

19. E. Great Basin

0.06

1.27

0.43

0.01

0.67

0.2

0

0.01

0

20. Uinta-Piceance Bs.

0.03

0.51

0.17

1.23

7.41

3.23

0.01

0.19

0.06

21. Paradox Basin

0.03

0.28

0.13

0.47

2.18

1.18

0.01

0.09

0.04

22. San Juan Basin

0.01

0.1

0.04

0.13

0.65

0.35

0

0.02

0.01

23. Alb.-Santa Fe Rft.

0

0.12

0.03

0

0.26

0.08

0

0.01

0

24. N. Arizona

0

0.17

0.03

0

0.6

0.09

0

0.06

0.01

25. S. Az.-SW. N. Mex.

0

0.04

0.01

0

0.37

0.11

0

0.04

0.01

Total Region 3.

0.31

1.78

0.84

2.88

9.68

5.24

0.05

0.28

0.14

Region 4. Rocky Mountain and Northern Great Plains

27. Montana Thrust Belt

0

0.01

0

0

7.29

1.6

0

0.02

0

28. North-Cen. Mt.

0

0.07

0.03

0.01

0.22

0.08

0

0

0

29. SW. Montana

0

0.03

0.01

0

0.14

0.04

0

0

0

31. Williston Basin

0.02

0.25

0.1

0.09

0.51

0.26

0.01

0.06

0.03

33. Powder River Basin

0.35

2.22

1.08

0.33

1.74

0.91

0.02

0.11

0.06

34. Big Horn Basin

0.07

0.83

0.36

0.18

0.98

0.49

0

0.02

0.01

35. Wind River Basin

0.03

0.26

0.12

0.38

1.79

0.95

0

0.02

0.01

36. Wyoming Thrust Belt

0.09

0.79

0.38

3.81

13.01

7.97

0.35

1.44

0.81

37. SW. Wyoming

0.02

0.31

0.12

0.44

2.3

1.17

0.01

0.04

0.02

38. Park Basins

0

0.06

0.01

0

0.04

0.01

0

0

0

39. Denver Basin

0

0.01

0

0

0.02

0.01

0

0

0

40. Las Animas Basin

0

0

0

0

0

0

0

0

0

41. Raton B.-S.G. Up.

0

0

0

0

0.05

0.01

0

0

0

Total Region 4

1.25

3.54

2.2

8.19

21.64

13.5

0.48

1.58

0.94

Region 5. West Texas and Eastern New Mexico

43. Palo Duro Basin

0

0

0

0

0

0

0

0

0

44. Permian Basin

0.06

0.43

0.21

0.29

1.77

0.84

0.01

0.08

0.04

45. Bend A.-Ft. W. Bs.

0

0

0

0

0

0

0

0

0

46. Marathon Thr. Belt

0

0

0

0

0

0

0

0

0

Total Region 5

0.06

0.43

0.21

0.29

1.73

0.84

0.01

0.08

0.04

Region 6. Gulf Coast

47. Western Gulf

0

0.21

0.06

0.38

3.44

1.39

0.01

0.1

0.04

49. La.-Ms. Salt Bs.

0

0.22

0.07

0.25

1.54

0.7

0.01

0.14

0.05

50. Florida Peninsula

0

0.21

0.06

0

0.02

0.01

0

0

0

Total Region 6.

0.04

0.46

0.18

0.9

4.45

2.09

0.03

0.2

0.09

Region 7. Midcontinent

51. Superior

0

0

0

0

0

0

0

0

0

53. Cam. Ar.-C. Ks. Up.

0

0

0

0

0

0

0

0

0

55. Nemaha Uplift

0

0

0

0

0

0

0

0

0

56. Forest City Basin

0

0

0

0

0

0

0

0

0

58. Anadarko Basin

0

0.04

0.01

0.16

1.74

0.7

0

0.03

0.01

59. Sedgwick Basin

0

0

0

0

0

0

0

0

0

60. Cherokee Basin

0

0

0

0

0

0

0

0

0

61. Southern Oklahoma

0

0.05

0.01

0

0.23

0.06

0

0.01

0

62. Arkoma Basin

0

0.01

0

0.07

1.51

0.57

0

0.05

0.02

Total Region 7.

0

0.08

0.03

0.47

2.77

1.33

0.01

0.07

0.03

Region 8. Eastern

63. Michigan Basin

0

0.07

0.02

0.02

0.47

0.15

0

0.02

0.01

64 Illinois Basin

0

0.03

0.01

0

0.22

0.04

0

0

0

65 Black Warrior Basin

0

0.01

0

0

0.42

0.14

0

0

0

66. Cincinnati Arch

0

0

0

0

0

0

0

0

0

67. Appalachian Basin

0

0.02

0

0.01

0.29

0.09

0

0

0

68. Blue Ridge Th. Belt

0

0

0

0

0

0

0

0

0

69. Piedmont

0

0

0

0

0

0

0

0

0

total Region 8.

0

0.12

0.03

0.14

1.16

0.42

0

0.02

0.01

US Federal Onshore

Total

4.38

12.83

7.54

34

96.79

57.94

1.13

2.7

1.8

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