| AOGCC Pool Statistics | Kuparuk River Unit, Tarn Oil Pool |
| Permitted Wells in Field: | |||||
| Type Well | Status | 2004 | 2003 | 2002 | 2001 | 2000 |
| Development | New | 11 | 19 | 9 | 24 | 22 |
| Sidetrack | 7 | 3 | 5 | 5 | 10 | |
| Multilateral | 16 | 5 | 1 | 2 | 3 | |
| Service | New | 6 | 11 | 6 | 15 | 11 |
| Sidetrack | 1 | 3 | 0 | 1 | 6 | |
| Multilateral | 6 | 0 | 0 | 0 | 0 | |
| Exploration | New | 1 | 0 | 2 | 0 | 0 |
| Sidetrack | 0 | 0 | 0 | 1 | 0 | |
| Total | 48 | 41 | 23 | 48 | 52 |
| Reservoir Properties: | ||||||||
| Description | 2004 |
2003 |
2002 |
2001 |
2000 |
| Reference Datum - ft. below sea level | 5230 |
5230 |
5230 |
5230 |
5230 |
| Temperature - ° F | 142
|
142
|
142 |
142 | 142 |
| Porosity - % | 20
|
20
|
20 |
20 | 20
|
| Permeability - md | 9
|
9 | 9
|
9 |
9 |
| Swi - % | 40
|
40
|
40
|
40
|
40
|
| Oil Viscosity @ Orig. Press. cp | .55
|
.55 | .55
|
.55
|
.55
|
| Oil Viscosity @ Sat. Press. cp | 0 |
0 |
0 |
0 |
0 |
| Orig. Press. - psi | 2365 |
2365 |
2365 |
2365 |
2365 |
| Bubble Point - psi | 2365 |
2365 |
2365 |
2365 |
2365 |
| Current Reservoir Press. - psi | 2600 |
2400 |
2300 |
2365 |
2365 |
| Oil Gravity - ° API | 37 |
37 |
37 |
37 |
37 |
| Gas Specific Gravity (Air = 1.0) | .91 |
.91 |
.91 |
.91 |
.91 |
| Gross Pay - ft. | 160 |
160 |
160 |
160 |
160 |
| Net Pay - ft. | 40 |
40 |
40 |
40 |
40 |
| Orig. FVF - RB/STB | 1.39 |
1.39 |
1.39 |
1.39 |
1.39 |
| Bubble Point FVF - RB/STB | 0 |
0 |
0 |
0 |
0 |
| Orig. GOR - SCF/STB | 712 |
712 |
712 |
712 |
712 |
| GOR (current yr.) - SCF/STB | 1380 |
1040 |
1091 |
1930 |
2028 |