| 1 | I C Gas Amcana Inc | Tulsa, OK 74103-3713 | Oil & Gas Operator | Apr 1996 |
| 2 | Ibex Resources Operating LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2007 |
| 3 | Iks Operating | Upton, WY 82703 | Oil & Gas Operator | Jul 2013 |
| 4 | Impact Energy Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Sep 2024 |
| 5 | Impact Exploration & Production LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Sep 2024 |
| 6 | Incline Reserves Inc | Topeka, KS BAD ADDR | Oil & Gas Operator | Mar 1994 |
| 7 | Incremental Oil & Gas USA Holdings Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
| 8 | Independent Production Company | Greenwood VIllage, CO 80121 | Oil & Gas Operator | May 2003 |
| 9 | Indian Creek Resources Inc | Loveland, CO 80538 | Oil & Gas Operator | Mar 2024 |
| 10 | Industrial Gas Services Inc | Wheat Ridge, CO 80033 | Oil & Gas Operator | Feb 2023 |
| 11 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 12 | Infield Discovery LLC | Madison, MS 39110 | Oil & Gas Operator | Aug 2024 |
| 13 | Infinity Oil & Gas Of Wyoming | Rock Springs, WY 82902 | Oil & Gas Operator | Feb 2009 |
| 14 | Inland Production Company | Vernal, UT 84079 | Oil & Gas Operator | Dec 2004 |
| 15 | Integrated Energy Inc | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 16 | Integrated Petroleum Corporation | Denver, CO 80202 | Oil Operator | Jan 2010 |
| 17 | Integrity Oil & Gas | Golden, CO 80401 | Oil & Gas Operator | May 2011 |
| 18 | Intercoast Oil And Gas Company | Tulsa, OK 74136 | Oil & Gas Operator | Jun 1997 |
| 19 | Intercontinental Petroleum | | Oil Operator | Oct 2012 |
| 20 | Interline Resources Corp | Casper, WY 82601 | Oil & Gas Operator | Oct 2009 |
| 21 | Internorth Inc | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2014 |
| 22 | Intoil, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Dec 2002 |
| 23 | Intrepid Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
| 24 | Intrepid Production Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
| 25 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Sep 2024 |
| 26 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
| 27 | Iron Creek Properties Inc | Casper, WY 82604 | Oil & Gas Operator | Sep 2024 |
| 28 | Itr Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |