Donald B. Anderson Family LP
Wamsutter Area
Washakie Basin
Non-Operated Producing Wells and Leasehold

- Located on the southeastern side of the Washakie Basin
- Operated by Questar Exploration & Production Company
- Working interest ranges from 30% - 50%
- Net revenue interest delivered ranges from 24% - 40.5%
- 20 producing wells / 1 shut-in well
- Majority of production from Almond formation
- Multi-pay potential
- Thickness ranges up to 450 feet
- Depth of wells ranges from 7,600 feet to 10,900 feet
- 3 MMCFD net production (projected August 2008)
- 20 BOPD net production (projected August 2008)
- $860,000 average net monthly cash flow (projected August 2008)
- Upside opportunities
- Part of an ongoing drilling program by current operator
- 5 wells planned for fall 2008 drilling program
- 18 low-risk/high-return PUD locations left to be drilled
- 41 probable and possible locations left to be drilled on
currently approved spacing
- 42 additional locations with 40-acre spacing approval on
all acreage
- 2 wells with behind pipe reserves
- 4,484 gross acres / 2,116 company net acres
- Majority of acreage is held by production
| Category |
Net Gas
Reserves – MMCF |
Net Oil
Reserves –MBO |
PV10%
Value – M$ |
| PDP |
12,081 |
83 |
38,787 |
| PUD |
11,017 |
73 |
21,414 |
| PBP |
204 |
1 |
680 |
| Grand Total |
23,302 |
157 |
60,881 |
| API |
WELL |
LOCATION |
COUNTY |
COMPLETION
DATE |
WI |
NRI |
| 4900722670 |
Robbers Gulch 1 |
4-14N-92W |
CARBON |
10/03/05 |
0.5000000 |
0.4050000 |
| 4900722671 |
Robbers Gulch 2 |
4-14N-92W |
CARBON |
10/03/05 |
0.5000000 |
0.4050000 |
| 4900722647 |
Edith State 1 |
16-14N-92W |
CARBON |
01/27/07 |
0.5000000 |
0.4000000 |
| 4900722650 |
Edith State 2 |
16-14N-92W |
CARBON |
12/3/2007 |
0.5000000 |
0.4000000 |
| 4900722883 |
Edith State 3 |
16-14N-92W |
CARBON |
01/06/07 |
0.5000000 |
0.4000000 |
| 4900722884 |
Edith State 4 |
16-14N-92W |
CARBON |
02/24/06 |
0.5000000 |
0.4000000 |
| 4900723246 |
Edith State 6 |
16-14N-92W |
CARBON |
01/10/07 |
0.5000000 |
0.4000000 |
| 4900723247 |
Edith State 5 |
16-14N-92W |
CARBON |
03/08/07 |
0.5000000 |
0.4000000 |
| 4900722638 |
Easy Street 2 |
25-15N-92W |
CARBON |
10/08/05 |
0.4500000 |
0.3645000 |
| 4900722664 |
Easy Street 1-5 (ES1 pad) |
25-15N-92W |
CARBON |
09/04/07 |
0.4500000 |
0.3645000 |
| 4900722868 |
Easy Street 3 |
25-15N-92W |
CARBON |
11/28/06 |
0.4500000 |
0.3645000 |
| 4900722869 |
Easy Street 4 |
25-15N-92W |
CARBON |
01/20/06 |
0.4500000 |
0.3645000 |
| 4900723208 |
Easy Street 3-9 (ES3 pad) |
25-15N-92W |
CARBON |
11/28/06 |
0.4500000 |
0.3645000 |
| 4900723235 |
Easy Street 4-8 (ES4 pad) |
25-15N-92W |
CARBON |
01/19/07 |
0.4500000 |
0.3645000 |
| 4900722649 |
Sam State 2 |
36-15N-93W |
CARBON |
09/28/05 |
0.5000000 |
0.4050000 |
| 4900722864 |
Sam State 3 |
36-15N-93W |
CARBON |
12/27/06 |
0.5000000 |
0.4050000 |
| 4900722667 |
Bull Moose 2 |
24-17N-93W |
SWEETWATER |
03/03/06 |
0.3125000 |
0.2531250 |
| 4903726416 |
W. Echo 16-2 |
16-17N-94W |
SWEETWATER |
10/21/06 |
0.3000000 BPO
0.2569350 APO |
0.2400000 BPO
0.2080000 APO |
| 4903726051 |
Am. Beauty 1 |
34-17N-94W |
SWEETWATER |
02/03/07 |
0.3125000 |
0.2531250 |
| 4903726911 |
Am. Beauty 4 |
34-17N-94W |
SWEETWATER |
1/11/2007 |
0.3125000 |
0.2531250 |
| 4903726052 |
American Beauty 2 |
34-17N-94W |
SWEETWATER |
01/14/06 |
0.3125000 |
0.2531250 |
|