| 13801 | International Oil & Gas Corp. | | Oil & Gas Operator | Dec 1986 |
| 13802 | International Oil&Gas Consultant | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 13803 | International Petroleum Service, LLC | | Oil Operator | Dec 2017 |
| 13804 | International Ventures Inc | Pogasa Springs, CO 81147 | Oil Operator | Jul 1996 |
| 13805 | International Western Oil Corp | Weatherford, TX 76086 | Oil & Gas Operator | Sep 2026 |
| 13806 | Internorth Inc | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2014 |
| 13807 | Interstate Energy Inc | | Oil & Gas Operator | Dec 2002 |
| 13808 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | Sep 2026 |
| 13809 | Interstate Gas Co. | | Gas Operator | Dec 1941 |
| 13810 | Interstate Gas MKT Inc | Indiana, PA 15701 | Oil & Gas Operator | Dec 2018 |
| 13811 | Interstate Natural Gas Company, LLC | Pikeville, KY 41502 | Oil & Gas Operator | Dec 2024 |
| 13812 | Interstate Operating LLC | Tulsa, OK 74101-0535 | Oil & Gas Operator | Aug 2013 |
| 13813 | Interstate Producing Ser Inc | | Oil & Gas Operator | May 1986 |
| 13814 | Interstate Producing Servs,Inc | | Oil & Gas Operator | May 1987 |
| 13815 | Interstate Production Company, Inc. | Buckhannon, WV 262010000 | Oil & Gas Operator | Dec 2021 |
| 13816 | Intoil, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Dec 2002 |
| 13817 | Intrepid Drilling, LLC | | Oil & Gas Operator | Jan 2025 |
| 13818 | Intrepid Energy Corporation | Independence, KS 67301 | Oil Operator | Mar 2016 |
| 13819 | Intrepid Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
| 13820 | Intrepid Operating LTD., Co | Hobbs, NM 88241 | Oil & Gas Operator | Nov 2009 |
| 13821 | Intrepid Production Corporation | Denver, CO 80202 | Oil & Gas Operator | Jul 2026 |
| 13822 | Investco Oil And Gas Inc | | Oil & Gas Operator | Jan 2025 |
| 13823 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | May 2026 |
| 13824 | Investment Land Services Inc | | Oil Operator | Oct 2001 |
| 13825 | Investment Operating Co | Stillwater, OK 74075-8572 | Oil Operator | Feb 2026 |
| 13826 | Investment Trends Corp. | | Gas Operator | Mar 1988 |
| 13827 | Investors Drilli | | Gas Operator | Jan 1993 |
| 13828 | Investors Oil, Inc. | | Oil Operator | Mar 1985 |
| 13829 | Investors Resources Corp | Edmond, OK 73034 | Oil & Gas Operator | Jul 2026 |
| 13830 | Invitation Energy, Incorporated | | Oil & Gas Operator | Dec 2021 |
| 13831 | Invito Operating, LLC | McKinney, TX 75070 | Oil & Gas Operator | Jun 2026 |
| 13832 | Invoil, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Sep 2026 |
| 13833 | Iochem Corporation | Oklahoma City, OK 73118-7483 | Oil & Gas Operator | Jul 2026 |
| 13834 | Ioe Acres V LLC | Perry, NY 14530 | Gas Operator | Dec 2025 |
| 13835 | Iowa Production Company, Inc. | | Oil & Gas Operator | Jan 1992 |
| 13836 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
| 13837 | Ipact | Austin, TX 78734 | Oil & Gas Operator | Sep 2026 |
| 13838 | Ipas Oil Company LLC | Pratt, KS 67124 | Oil Operator | Dec 2019 |
| 13839 | Ipr Energy Partners, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Aug 2014 |
| 13840 | Ipr Energy Partners, LLC | Bowie, TX 76230 | Oil & Gas Operator | Sep 2026 |
| 13841 | Ipr USA Corp. | Irving, TX 75039 | Oil & Gas Operator | Jun 2009 |
| 13842 | Ipt Oil Company | Evansville, IN 47706 | Oil & Gas Operator | Sep 2026 |
| 13843 | Ira Oil & Gas LLC | Addison, TX 75001 | Oil & Gas Operator | Jul 2008 |
| 13844 | Ira Testers | Ira, TX 79527 | Oil & Gas Operator | Mar 2024 |
| 13845 | Ira Testers, LLC | Ira, TX 79527 | Oil Operator | Sep 2026 |
| 13846 | Irani Engineering | | Gas Operator | Dec 1995 |
| 13847 | Irene L. Heary Irrevocable Trust | Springville, NY 14141 | Gas Operator | Dec 2025 |
| 13848 | Irex Corporation | Englewood, CO 80111 | Oil & Gas Operator | May 2000 |
| 13849 | Irion Corporation, The | San Angelo, TX 76906 | Oil & Gas Operator | Jun 2021 |
| 13850 | Irish City Oil & Gas, Inc. | Wilson, TX 79381 | Oil & Gas Operator | Sep 2026 |
| 13851 | Irish Oil & Gas Co. | Houston, TX 77242 | Oil & Gas Operator | Aug 2003 |
| 13852 | Iron Bell Operating, LLC | Lubbock, TX 79423 | Oil & Gas Operator | Sep 2026 |
| 13853 | Iron City Wells LLC | Saxonburg, PA 16056-8802 | Gas Operator | May 2026 |
| 13854 | Iron Creek Properties Inc | Casper, WY 82604 | Oil & Gas Operator | Sep 2025 |
| 13855 | Iron Hawk Energy Group Joint Venture | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2026 |
| 13856 | Iron Horse Oil & Gas, Inc. | Albany, TX 76430 | Oil & Gas Operator | Sep 2026 |
| 13857 | Iron Oil Operating, LLC | | Oil & Gas Operator | Jun 2026 |
| 13858 | Iron Orchard Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2026 |
| 13859 | Iron Pennsylvania Land LLC | | Gas Operator | Dec 2025 |
| 13860 | Iron Post Oil & Gas Co Inc | Bristow, OK 74010-4120 | Oil & Gas Operator | Jun 2026 |
| 13861 | Iron Ridge Operating, LLC | Austin, TX 78738 | Oil & Gas Operator | Sep 2026 |
| 13862 | Iron Sights Operating, Inc. | Stillwater, OK 74076 | Oil & Gas Operator | Jul 2022 |
| 13863 | Iron Springs Operating Co. Inc | | Oil & Gas Operator | Jan 2025 |
| 13864 | Iron Star Energy LLC | Houston, TX 77037-1142 | Oil & Gas Operator | Jul 2026 |
| 13865 | Ironbloom Operating, LLC | La Grange, TX 78945 | Oil & Gas Operator | Sep 2026 |
| 13866 | Ironhead Oil & Gas LLC | Healdton, OK 73438 | Gas Operator | Jul 2026 |
| 13867 | Ironhorse Operations, LLC | Kilgore, TX 75663 | Oil Operator | Sep 2026 |
| 13868 | Ironroc Energy | The Woodlands, TX 77381 | Oil & Gas Operator | Sep 2026 |
| 13869 | Ironwood Exploration Inc | | Oil & Gas Operator | Mar 1995 |
| 13870 | Ironwood Oil & Gas LLC | Houston, TX 77067 | Oil & Gas Operator | Jun 2014 |
| 13871 | Iroquois Central School District | Elma, NY 14059 | Gas Operator | Dec 2025 |
| 13872 | Irvin Drilling Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1990 |
| 13873 | Irvin Operations, Inc. | | Oil Operator | Aug 1996 |
| 13874 | Irvin Petroleum | Stinnett, TX 79083 | Oil & Gas Operator | Sep 1996 |
| 13875 | Irvin Petroleum Inc. | Stinnett, TX 79083 | Oil & Gas Operator | Apr 2016 |
| 13876 | Irwin H. Parnes | | Oil Operator | Jun 1982 |
| 13877 | Irwin-Crum | Nocona, TX 76255 | Oil Operator | Sep 2026 |
| 13878 | Is Energy, LLC | Seminole, TX 79360 | Oil Operator | Sep 2026 |
| 13879 | Isaacs Fairy J | Konawa, OK 74849-0134 | Oil Operator | Sep 2020 |
| 13880 | Isaacs Scott J Jr | Butler, PA 16002-0059 | Gas Operator | May 2026 |
| 13881 | Isaacson Energy Resources, LLC | Austin, TX 78741 | Oil & Gas Operator | Sep 2026 |
| 13882 | Isaia, Deborah | East Aurora, NY 14052 | Gas Operator | Dec 2025 |
| 13883 | Isbell, Bob G. Operating | Cisco, TX 76437 | Oil & Gas Operator | Mar 2015 |
| 13884 | Isbrandtsen Oil And Gas Co | | Oil Operator | Mar 2002 |
| 13885 | Iseman William R | | Gas Operator | Dec 2025 |
| 13886 | Isern, James R. | Wichita, KS 67277 | Oil Operator | Apr 1996 |
| 13887 | Isis Operating Inc | Russell, KS 67665 | Oil Operator | Dec 2019 |
| 13888 | Iskandia Energy Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | Sep 2026 |
| 13889 | Island Energy Partners LLC | | Gas Operator | Jan 2018 |
| 13890 | Island Exploration | Houston, TX 77058 | Oil & Gas Operator | Sep 2026 |
| 13891 | Isom Energy, Inc. | San Angelo, TX 76904 | Oil & Gas Operator | May 2018 |
| 13892 | Ison, Samuel M | Isonville, KY 41149 | Oil Operator | Dec 2024 |
| 13893 | Israelite Church Of God In Jesus Christ, Inc. | New York, NY 10035 | Gas Operator | Dec 2025 |
| 13894 | It'LL Do Oil Company | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 13895 | Italian-American Oil Co., Inc. | Tomball, TX 77377 | Oil & Gas Operator | Sep 2026 |
| 13896 | Itawamba Industrial Gas Co | | Gas Operator | Dec 1999 |
| 13897 | Itech Oil Company | Cypress, TX 77429 | Oil & Gas Operator | Aug 2007 |
| 13898 | Itr Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 13899 | Itx Corporation | Dallas, TX 75225 | Oil & Gas Operator | Sep 2026 |
| 13900 | Itx Pipeline Company, LLC | Dallas, TX 75225 | Oil & Gas Operator | Sep 2026 |