| AOGCC Pool Statistics | Prudhoe Bay Unit, Orion Oil Pool |
| Permitted Wells in Field: | |||||
| Type Well | Status | 2004 | 2003 | 2002 | 2001 | 2000 |
| Development | New | 9 | 12 | 17 | 19 | 8 |
| Sidetrack | 62 | 62 | 58 | 67 | 67 | |
| Multilateral | 18 | 10 | 14 | 3 | 4 | |
| Service | New | 12 | 7 | 17 | 6 | 1 |
| Sidetrack | 8 | 3 | 1 | 8 | 7 | |
| Multilateral | 0 | 0 | 0 | 0 | 0 | |
| Exploration | New | 0 | 0 | 1 | 0 | 0 |
| Sidetrack | 0 | 0 | 0 | 0 | 0 | |
| Total | 109 | 94 | 108 | 103 | 87 |
| Reservoir Properties: | ||||||||
| Description | 2004 |
2003 |
2002 |
2001 |
2000 |
| Reference Datum - ft. below sea level | 4400 |
4400 |
4400 |
0 |
0 |
| Temperature - ° F | 87
|
87
|
87
|
0 |
0 |
| Porosity - % | 25-32
|
25-32
|
22-32
|
0 |
0 |
| Permeability - md | 10-1200
|
50-2000 | 50-2000
|
0 |
0 |
| Swi - % | 35
|
35
|
35
|
0 |
0 |
| Oil Viscosity @ Orig. Press. cp | 7-132
|
7-132 | 5-125
|
0 |
0 |
| Oil Viscosity @ Sat. Press. cp | 6-117 |
0 |
0 |
0 |
0 |
| Orig. Press. - psi | 1950 |
1950 |
1950 |
0 |
0 |
| Bubble Point - psi | 1400-1800 |
1400-1800 |
1600-1800 |
0 |
0 |
| Current Reservoir Press. - psi | 1950 |
1950 |
1950 |
0 |
0 |
| Oil Gravity - ° API | 15-22 |
15-22 |
15-22 |
0 |
0 |
| Gas Specific Gravity (Air = 1.0) | .7 |
.7 |
.7 |
0 |
0 |
| Gross Pay - ft. | 120-205 |
120-205 |
120-205 |
0 |
0 |
| Net Pay - ft. | 60-160 |
60-160 |
60-160 |
0 |
0 |
| Orig. FVF - RB/STB | 1.05-1.14 |
1.08-1.12 |
1.08-1.12 |
0 |
0 |
| Bubble Point FVF - RB/STB | 1.06-1.14 |
0 |
0 |
0 |
0 |
| Orig. GOR - SCF/STB | 250-350 |
250-350 |
250-350 |
0 |
0 |
| GOR (current yr.) - SCF/STB | 880 |
848 |
596 |
0 | 0 |
| References / Summary |