| AOGCC Pool Statistics | Prudhoe Bay Unit, Borealis 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 | 6600 |
6600 |
6600 |
6600 |
0 |
| Temperature - ° F | 158
|
158
|
158
|
158
|
0 |
| Porosity - % | 15-25
|
15-25
|
15-25
|
15-25
|
0 |
| Permeability - md | 1-300
|
1-300 | 1-300
|
1-300
|
0 |
| Swi - % | 40
|
40
|
40
|
40
|
0 |
| Oil Viscosity @ Orig. Press. cp | 1.7-2.9
|
1.7-2.9 | 1.7-2.9
|
1.7-2.9
|
0 |
| Oil Viscosity @ Sat. Press. cp | 0 |
0 |
0 |
0 |
0 |
| Orig. Press. - psi | 3439 |
3439 |
3433 |
3439 |
0 |
| Bubble Point - psi | 2505-2761 |
2505-2761 |
2761 |
2761 |
0 |
| Current Reservoir Press. - psi | 2100-3500 |
2000-3400 |
3400 |
3400 |
0 |
| Oil Gravity - ° API | 23-27.5 |
24-27.5 |
24-27.5 |
24-27.5 |
0 |
| Gas Specific Gravity (Air = 1.0) | .72 |
.72 |
.72 |
.72 |
0 |
| Gross Pay - ft. | 90 |
90 |
90 |
90 |
0 |
| Net Pay - ft. | 60 |
60 |
60 |
60 |
0 |
| Orig. FVF - RB/STB | 1.22 |
1.22 |
1.22 |
1.22 |
0 |
| Bubble Point FVF - RB/STB | 0 |
0 |
0 |
0 |
0 |
| Orig. GOR - SCF/STB | 375-475 |
375-475 |
375-475 |
375-475 |
0 |
| GOR (current yr.) - SCF/STB | 754 |
803 |
1147 | 695 |
0 |