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National Assessment of Oil and Gas Fact Sheet

Assessment of Undiscovered Oil and Gas Resources of the San Juan Basin Province of New Mexico and Colorado, 2002

Table 1. San Juan Basin Province assessment results.
[MMBO, million barrels of oil; BCFG, billion cubic feet of gas; MMBNGL, million barrels of natural gas liquids. Results shown are fully risked estimates. For gas fields, all liquids are included under the NGL (natural gas liquids) category. F95 denotes a 95-percent chance of at least the amount tabulated. Other fractiles are defined similarly. Fractiles are additive under the assumption of perfect positive correlation. CBG, coal-bed gas. Gray shading indicates not applicable (N / A)]

Total undiscovered resources


Conventional Oil and Gas Resources
Total Petroleum Systems (TPS)
and Assessment Units (AU)		 Field
type

Oil (MMBO)
F95
F50
F5
Mean

Gas (BCFG)
F95
F50
F5
Mean

NGL (MMBNGL)
F95
F50
F5
Mean
Fruitland TPS
Tertiary Conventional Gas AU
Gas
N / A
N / A
N / A
N / A
25.76
74.40
152.91
79.98
0.23
0.73
1.83
0.84
Mancos-Menefee
Composite TPS
Mesaverde Updip Conventional Oil
Not quantitatively assessed
Gallup Sandstone Conventional
Oil and Gas AU
Oil
0.00
1.98
6.29
2.34
0.00
0.29
0.98
0.35
0.00
0.00
0.01
0.00
Mancos Sandstone Conventional
Oil and Gas AU
Oil
5.41
11.33
20.72
11.99
23.34
53.28
106.75
57.57
0.84
2.07
4.52
2.30
Dakota-Greenhorn Conventional
Oil and Gas AU
Oil
Gas
0.78
2.26
4.73
2.45
N / A
N / A
N / A
N / A
2.53
7.49
17.10
8.34
5.59
12.63
22.40
13.35
0.02
0.07
0.16
0.08
0.22
0.50
0.96
0.53
Todilto TPS
Entrada Sandstone
Conventional Oil
Oil
0.81
2.19
4.18
2.32
1.84
5.15
10.66
5.56
0.07
0.20
0.45
0.22
Total Conventional
Resources
7.00
17.76
35.92
19.10
59.06
153.24
310.80
165.15
1.38
3.57
7.93
3.97


Continuous Oil and Gas Resources
Total Petroleum Systems (TPS)
and Assessment Units (AU)		 Field
type

Oil (MMBO)
F95
F50
F5
Mean

Gas (BCFG)
F95
F50
F5
Mean

NGL (MMBNGL)
F95
F50
F5
Mean
Fruitland TPS
Pictured Cliffs Continuous Gas
Gas
N / A
N / A
N / A
N / A
3,865.41
5,510.68
7,856.23
5,640.25
9.07
15.95
28.06
16.92
Fruitland Fairway Coal-Bed Gas
CBG
N / A
N / A
N / A
N / A
3,081.06
3,937.16
5,031.14
3,981.14
0.00
0.00
0.00
0.00
Basin Fruitland Coal-Bed Gas
CBG
N / A
N / A
N / A
N / A
17,342.26
19,543.12
22,023.27
19,594.74
0.00
0.00
0.00
0.00
Lewis ShaleTPS
Lewis Continuous Gas
Gas
N / A
N / A
N / A
N / A
8,315.22
10,105.95
12,282.31
10,177.24
18.08
29.25
47.32
30.53
Mancos-Menefee
Composite TPS
Mesaverde Central-Basin
Continuous Gas
Gas
N / A
N / A
N / A
N / A
1,053.32
1,305.62
1,618.35
1,316.79
3.44
5.12
7.60
5.27
Mancos Sandstone Continuous Gas
Gas
N / A
N / A
N / A
N / A
3,980.80
5,062.07
6,437.03
5,116.37
50.64
73.97
108.04
75.96
Dakota-Greenhorn Continuous Gas
Gas
N / A
N / A
N / A
N / A
3,148.66
3,896.17
4,821.14
3,928.98
10.29
15.27
22.66
15.72
Menefee Coal-Bed Gas
CBG
N / A
N / A
N / A
N / A
228.30
569.08
1,418.55
663.94
0.00
0.00
0.00
0.00
Total Continuous
Resources
 
 
41,015.03
49,929.85
61,488.02
50,419.45
91.52
139.56
213.68
144.40
Total Undiscovered
Oil and Gas Resources
 
7.00
17.76
35.92
19.10
41,074.09
50,083.09
61,798.82
50,584.60
92.90
143.13
221.61
148.37
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