| VPR a #44530-007-20950 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,215 | Feb 19, 2008 | 0 | 1,920 |
| VPR a #44430-007-20951 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,255 | Feb 19, 2008 | 0 | 13,256 |
| VPR a #44330-007-20952 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,215 | Feb 19, 2008 | 0 | 4,937 |
| VPR a #27030-007-20953 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,440 | Feb 19, 2008 | 0 | 3,814 |
| VPR a #56430-007-20954 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,435 | Feb 19, 2008 | 0 | 4,586 |
| VPR a #56030-007-20955 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,420 | Feb 19, 2008 | 0 | 8,841 |
| VPR a #55130-007-20956 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,455 | Feb 19, 2008 | 0 | 1,372 |
| VPR a #54330-007-20957 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,425 | Feb 19, 2008 | 0 | 3,666 |
| VPR a #54230-007-20958 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,455 | Feb 19, 2008 | 0 | 3,805 |
| VPR a #006A30-007-20938 | High River Resources Operating, LLC only | ColfaxStubblefield Canyon Niobrara Gas | ActiveGas | 6,561 | Feb 12, 2008 | 0 | 2,525 |
| VPR E #06330-007-20925 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,815 | Feb 11, 2008 | 0 | 29,789 |
| VPR E #06430-007-20926 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,845 | Feb 11, 2008 | 0 | 24,454 |
| VPR a #40130-007-20927 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,275 | Feb 11, 2008 | 0 | 2,616 |
| VPR a #40430-007-20928 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 1,910 | Feb 11, 2008 | 0 | 44,721 |
| VPR a #40530-007-20929 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,005 | Feb 11, 2008 | 0 | 32,466 |
| VPR a #40630-007-20930 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 1,909 | Feb 11, 2008 | 0 | 24,646 |
| VPR a #40730-007-20931 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,195 | Feb 11, 2008 | 0 | 7,606 |
| VPR a #41230-007-20932 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,285 | Feb 11, 2008 | 0 | 3,757 |
| VPR a #41830-007-20933 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,245 | Feb 11, 2008 | 0 | 9,316 |
| VPR a #41930-007-20934 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,215 | Feb 11, 2008 | 0 | 3,664 |
| VPR a #42030-007-20935 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,135 | Feb 11, 2008 | 0 | 7,800 |
| VPR a #42130-007-20936 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,185 | Feb 11, 2008 | 0 | 9,933 |
| VPR a #42430-007-20937 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,115 | Feb 11, 2008 | 0 | 9,002 |
| VPR a #50430-007-20922 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,800 | Feb 8, 2008 | 0 | 25,137 |
| VPR a #50330-007-20923 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,725 | Feb 8, 2008 | 0 | 18,191 |
| VPR a #50130-007-20924 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,735 | Feb 8, 2008 | 0 | 16,325 |
| VPR E #04930-007-20921 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 1,565 | Feb 4, 2008 | 0 | 2,102 |
| VPR a #47730-007-20907 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,075 | Jan 25, 2008 | 0 | 4,465 |
| VPR a #47930-007-20908 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,085 | Jan 25, 2008 | 0 | 1,606 |
| VPR a #48030-007-20909 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,235 | Jan 25, 2008 | 0 | 5,139 |
| VPR a #47630-007-20910 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 1,985 | Jan 25, 2008 | 0 | 16,496 |
| VPR E #05430-007-20911 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 1,685 | Jan 25, 2008 | 0 | 5,155 |
| VPR a #49030-007-20912 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 1,915 | Jan 25, 2008 | 0 | 1,307 |
| VPR a #48530-007-20913 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 1,955 | Jan 25, 2008 | 0 | 14,475 |
| VPR E #04830-007-20914 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 1,495 | Jan 25, 2008 | 0 | 872 |
| VPR E #05330-007-20915 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 1,705 | Jan 25, 2008 | 0 | 3,297 |
| VPR E #05230-007-20916 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,065 | Jan 25, 2008 | 0 | 2,554 |
| VPR E #05130-007-20917 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,000 | Jan 25, 2008 | 0 | 160 |
| VPR E #05030-007-20918 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,155 | Jan 25, 2008 | 0 | 18,499 |
| VPR a #47530-007-20919 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,485 | Jan 25, 2008 | 0 | 43,187 |
| VPR a #47230-007-20920 | High River Resources Operating, LLC only | ColfaxStubblefield Cnyn Raton-Vermejo Gas | ActiveGas | 2,485 | Jan 25, 2008 | 0 | 36,490 |
| VPR B #30130-007-20905 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,645 | Jan 3, 2008 | 0 | 22,824 |
| VPR B #30030-007-20906 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,665 | Jan 3, 2008 | 0 | 8,091 |
| VPR B #23530-007-20893 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,345 | Jan 2, 2008 | 0 | 1,591 |
| VPR B #23430-007-20894 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,315 | Jan 2, 2008 | 0 | 8,462 |
| VPR B #17930-007-20895 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,315 | Jan 2, 2008 | 0 | 11,153 |
| VPR B #17830-007-20896 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,425 | Jan 2, 2008 | 0 | 8,933 |
| VPR B #17530-007-20897 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,580 | Jan 2, 2008 | 0 | 7,072 |
| VPR B #17630-007-20898 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,220 | Jan 2, 2008 | 0 | 13,922 |
| VPR B #17730-007-20899 | High River Resources Operating, LLC only | ColfaxCastle Rock Park-Vermejo Gas | ActiveGas | 2,295 | Jan 2, 2008 | 0 | 8,613 |