| VPR D #12830-007-20457 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,735 | Oct 30, 2003 | 0 | 3,558 |
| VPR D #13030-007-20458 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,825 | Oct 30, 2003 | 0 | 1,135 |
| VPR D #13130-007-20459 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,215 | Oct 30, 2003 | 0 | 9,541 |
| VPR D #13230-007-20460 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,245 | Oct 30, 2003 | 0 | 5,285 |
| VPR D #13330-007-20461 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,245 | Oct 30, 2003 | 0 | 12,265 |
| VPR D #13430-007-20462 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,155 | Oct 30, 2003 | 0 | 3,250 |
| VPR D #13530-007-20463 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,125 | Oct 30, 2003 | 0 | 10,116 |
| VPR D #13630-007-20464 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,005 | Oct 30, 2003 | 0 | 6,901 |
| VPR D #13730-007-20465 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,065 | Oct 30, 2003 | 0 | 17,395 |
| VPR D #13830-007-20466 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,035 | Oct 30, 2003 | 0 | 5,048 |
| VPR D #13930-007-20467 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,945 | Oct 30, 2003 | 0 | 13,307 |
| VPR D #14030-007-20468 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,945 | Oct 30, 2003 | 0 | 20,230 |
| VPR D #12030-007-20435 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 3,290 | Jul 24, 2003 | 0 | 66 |
| VPR D #11630-007-20431 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,915 | Jul 16, 2003 | 0 | 3,007 |
| VPR D #11530-007-20432 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,705 | Jul 16, 2003 | 0 | 6,454 |
| VPR D #11730-007-20423 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,240 | Jun 27, 2003 | 0 | 36 |
| VPR D #11830-007-20424 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,025 | Jun 27, 2003 | 0 | 4,365 |
| VPR D #11930-007-20425 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,885 | Jun 27, 2003 | 0 | 9,520 |
| VPR B #04530-007-20426 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,750 | Jun 27, 2003 | 0 | 18,645 |
| VPR B #04630-007-20427 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,810 | Jun 27, 2003 | 0 | 23,570 |
| VPR B #04730-007-20428 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,810 | Jun 27, 2003 | 0 | 11,374 |
| VPR B #04830-007-20429 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,530 | Jun 27, 2003 | 0 | 637 |
| VPR D #10030-007-20398 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,015 | Jan 3, 2003 | 0 | 6,632 |
| VPR D #10430-007-20399 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,120 | Jan 3, 2003 | 0 | 20,074 |
| VPR D #10530-007-20400 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,090 | Jan 3, 2003 | 0 | 9,190 |
| VPR D #11330-007-20401 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,988 | Jan 3, 2003 | 0 | 6,062 |
| VPR D #11430-007-20402 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,965 | Jan 3, 2003 | 0 | 4,939 |
| VPR D #09130-007-20379 | EP Energy E&P Company, LP only | ColfaxCastle Rock Park-Vermejo Gas | PluggedGas | 1,610 | Dec 30, 2002 | 0 | 0 |
| VPR D #09230-007-20380 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,760 | Dec 30, 2002 | 0 | 76 |
| VPR D #09330-007-20381 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,700 | Dec 30, 2002 | 0 | 0 |
| VPR D #09430-007-20382 | Wapiti Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,850 | Dec 30, 2002 | 0 | 2 |
| VPR D #09530-007-20383 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,820 | Dec 30, 2002 | 0 | 42 |
| VPR D #09630-007-20384 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,760 | Dec 30, 2002 | 0 | 8,229 |
| VPR D #09730-007-20385 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,090 | Dec 30, 2002 | 0 | 1 |
| VPR D #09830-007-20386 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 3,218 | Dec 30, 2002 | 0 | 1 |
| VPR D #09930-007-20387 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,880 | Dec 30, 2002 | 0 | 1,268 |
| VPR D #10130-007-20388 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,000 | Dec 30, 2002 | 0 | 17,376 |
| VPR D #10230-007-20389 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 3,346 | Dec 30, 2002 | 0 | 7,713 |
| VPR D #10330-007-20390 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,270 | Dec 30, 2002 | 0 | 5,060 |
| VPR D #10630-007-20391 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 4,966 | Dec 30, 2002 | 0 | 12,162 |
| VPR D #10730-007-20392 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,270 | Dec 30, 2002 | 0 | 12,108 |
| VPR D #10830-007-20393 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,180 | Dec 30, 2002 | 0 | 9,999 |
| VPR D #10930-007-20394 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,180 | Dec 30, 2002 | 0 | 9,322 |
| VPR D #11030-007-20395 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,990 | Dec 30, 2002 | 0 | 12,774 |
| VPR D #11130-007-20396 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,365 | Dec 30, 2002 | 0 | 3,437 |
| VPR D #11230-007-20397 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,300 | Dec 30, 2002 | 0 | 7,682 |
| VPR D #08930-007-20319 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,225 | Jan 17, 2002 | 0 | 1,900 |
| VPR D #09030-007-20320 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,415 | Jan 17, 2002 | 0 | 113 |
| VPR D #03730-007-20289 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 1,795 | Sep 25, 2001 | 0 | 17,147 |
| VPR D #04630-007-20290 | EP Energy E&P Company, LP only | ColfaxCastle Rock Park-Vermejo Gas | PluggedGas | 1,490 | Sep 25, 2001 | 0 | 0 |