| Lease Name | Location | Operator | Oil Prod | Gas Prod | 
| Ole-66N65W 24NWNW | Weld County, CO | PDC ENERGY INC |  |  | 
| Olin 30-31 | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin 9C-8HZ | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin Ha-65N65W 9nesw | Weld County, CO | EXTRACTION OIL & GAS LLC |  |  | 
| Olin L 16-20 | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin L 31-29D | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin L-63N66W 17NWSW | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin L-63N66W 17sesw | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin L.-63N66W 17SWSW | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin State L-63N66W 16nwse | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin State L-63N66W 16swne | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin State L-63N66W 16swne | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin State L-63N66W 16swne | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin-61N65W 4nwne | Weld County, CO | CRESTONE PEAK RESOURCES OPERATING LLC |  |  | 
| Olin-61N65W 4senw | Weld County, CO | CRESTONE PEAK RESOURCES OPERATING LLC |  |  | 
| Olin-61N65W 4swne | Weld County, CO | CRESTONE PEAK RESOURCES OPERATING LLC |  |  | 
| Olin-63N66W 17nesw | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin-63N66W 17NWSW | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin-63N66W 17sesw | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olin-63N66W 17SWSW | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olive-62N66W 26nesw | Weld County, CO | CRESTONE PEAK RESOURCES OPERATING LLC |  |  | 
| Olive-62N66W 26SWSW | Weld County, CO | CRESTONE PEAK RESOURCES OPERATING LLC |  |  | 
| Olsen Y-62N64W 5SWNW | Weld County, CO | NOBLE ENERGY INC |  |  | 
| Olson 41-3 | Weld County, CO | PDC ENERGY INC |  |  | 
| Olson Usx O-64N67W 29NWSW | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Olson-64N67W 29nenw | Weld County, CO | PDC ENERGY INC |  |  | 
| Olson-64N67W 29nesw | Weld County, CO | PDC ENERGY INC |  |  | 
| Olson-64N67W 29NWSW | Weld County, CO | PDC ENERGY INC |  |  | 
| Olson-64N67W 29senw | Weld County, CO | PDC ENERGY INC |  |  | 
| Olson-64N67W 29sesw | Weld County, CO | PDC ENERGY INC |  |  | 
| Olson-64N67W 29SWNW | Weld County, CO | PDC ENERGY INC |  |  | 
| Olson-64N67W 29SWSW | Weld County, CO | PDC ENERGY INC |  |  | 
| Olson-Usx O-64N67W 29nenw | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Onion-Berg-Gourd Pad | Weld County, CO | VERDAD RESOURCES LLC |  |  | 
| Onyx Pad | Weld County, CO | BAYSWATER EXPLORATION AND PRODUCTION LLC |  |  | 
| Onyx-66N67W 29NWSW | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Opal Coalbank Pad | Weld County, CO | PRAIRIE OPERATING CO LLC |  |  | 
| Opal-61N64W 34SWSW | Weld County, CO | K P KAUFFMAN COMPANY INC |  |  | 
| Opatril P-63N67W 12nwse | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Opatril P12-22D | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Opatril Unit-63N67W 12sese | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Opatril-63N67W 12nwse | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Opatril-63N67W 12sese | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Opatril-63N67W 12swse | Weld County, CO | KERR MCGEE OIL & GAS ONSHORE LP |  |  | 
| Opdkye Usx I 03-17tank | Weld County, CO | PDC ENERGY INC |  |  | 
| Opdyke Trust 43-3D | Weld County, CO | PDC ENERGY INC |  |  | 
| Opdyke Usx I 03-17 | Weld County, CO | PDC ENERGY INC |  |  | 
| Opdyke-66N66W 3nwne | Weld County, CO | PDC ENERGY INC |  |  | 
| Opdyke-66N66W 3swne | Weld County, CO | PDC ENERGY INC |  |  | 
| Opdyke/Hinkle-64N64W 5nwse | Weld County, CO | NOBLE ENERGY INC |  |  |