| 13901 | Iberia Operating Corporation | | Oil & Gas Operator | Jan 2003 |
| 13902 | Ibex Resources I, L.P. | Midland, TX 79701 | Oil & Gas Operator | Jul 1999 |
| 13903 | Ibex Resources Operating LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2007 |
| 13904 | Ibex Resources, LLC | Austin, TX 78751 | Oil & Gas Operator | Jul 1999 |
| 13905 | Ica Energy Operating, L.L.C. | Odessa, TX 79760 | Oil & Gas Operator | Mar 2026 |
| 13906 | Icarus Operating Corporation | Spring, TX 77393 | Oil & Gas Operator | Mar 2026 |
| 13907 | Ice Brothers, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Jul 2024 |
| 13908 | Ice Well Services, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Mar 2026 |
| 13909 | Icg Tygart Valley, LLC | Grafton, WV 26354 | Oil & Gas Operator | Dec 2021 |
| 13910 | Ickert Enterprises | Olney, TX 76374 | Oil & Gas Operator | Mar 2026 |
| 13911 | Ickert, A. F. Jr. | Olney, TX 76374 | Oil & Gas Operator | Apr 1998 |
| 13912 | Icon Energy Company | Oklahoma City, OK 73156-1613 | Oil & Gas Operator | Dec 2025 |
| 13913 | Iconic Oil & Gas LLC | Dallas, TX 75229 | Gas Operator | Sep 2025 |
| 13914 | Icor Oil & Gas Of Okla LTD | Claremore, OK 74018-2132 | Oil & Gas Operator | Mar 2015 |
| 13915 | Ics Energy LLC | Stamford, TX 79553 | Oil & Gas Operator | Mar 2026 |
| 13916 | Idaho Oil Co., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Mar 2008 |
| 13917 | Idc Energy Corp | Warren, PA 16365-0792 | Oil & Gas Operator | Dec 2021 |
| 13918 | Idgas, Inc. | Austin, TX 78746 | Oil & Gas Operator | Oct 1995 |
| 13919 | Iep Kansas Gas, LLC | Burlington, CO 80807 | Oil & Gas Operator | Jan 2026 |
| 13920 | Igas Corp | Charlottesville, VA 22905-5246 | Gas Operator | Dec 2000 |
| 13921 | Igleheart Warren | Edmond, OK 73034-8964 | Oil & Gas Operator | Jun 2016 |
| 13922 | Igwt, Inc. | Rose Hill, KS 67133 | Oil & Gas Operator | Sep 2025 |
| 13923 | Ijs Oil | Saint Jo, TX 76265 | Oil & Gas Operator | Mar 2026 |
| 13924 | Ikard, Alan | Electra, TX 76360 | Oil & Gas Operator | Mar 2026 |
| 13925 | Ike Energy LLC | Stillwater, OK 74074-1745 | Oil & Gas Operator | Dec 2025 |
| 13926 | Ike Lovelady, Inc. | | Oil & Gas Operator | Jun 1985 |
| 13927 | Ike Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Mar 2026 |
| 13928 | Ikenberry Herman & Ikenberry | | Oil Operator | Jul 1999 |
| 13929 | Iks Operating | Upton, WY 82703 | Oil & Gas Operator | Jul 2013 |
| 13930 | Il Geer & Sons Partnership | Clarendon, PA 16313-4107 | Oil & Gas Operator | Dec 2013 |
| 13931 | Illini Development Company | | Oil & Gas Operator | Dec 2002 |
| 13932 | Illoma Oil Company Inc | Algonquin, IL 60102-1825 | Oil & Gas Operator | Mar 2015 |
| 13933 | Imagery Exploration, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Mar 2026 |
| 13934 | Imc Exploration Co. | | Oil & Gas Operator | Oct 1986 |
| 13935 | Immink Merle | | Oil & Gas Operator | Dec 2025 |
| 13936 | Imod Oil Prod LLC | Pleasantville, PA 16341-0149 | Oil & Gas Operator | Dec 2009 |
| 13937 | Impact Energy Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Jan 2026 |
| 13938 | Impact Exploration & Production LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Dec 2025 |
| 13939 | Impact Exploration Company | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
| 13940 | Imperator Investments LLC | Shawnee, KS 66217 | Oil Operator | Aug 2024 |
| 13941 | Imperial American Oil Corporation | Wichita, KS 67205 | Oil Operator | Dec 2009 |
| 13942 | Imperial Gas Resources LLC | Austin, TX 78701 | Oil & Gas Operator | Mar 2026 |
| 13943 | Imperial Occidental | | Oil & Gas Operator | Dec 2025 |
| 13944 | Imperial Oil & G | | Gas Operator | Jan 1990 |
| 13945 | Imperial Oil Com | | Oil & Gas Operator | Dec 1992 |
| 13946 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 13947 | Imperial Oil Of North Dakota, Inc. | | Oil & Gas Operator | Jul 2023 |
| 13948 | Imperial Oil Properties, Inc. | Wichita, KS 67201 | Oil & Gas Operator | Jun 2006 |
| 13949 | Imperial Operating Co., L.L.C. | Midland, TX 79701 | Oil Operator | Sep 2023 |
| 13950 | Imperial Petroleum Inc | Evansville, IN 47725 | Oil & Gas Operator | Jan 2005 |
| 13951 | Imperial-American Energy,Inc. | | Oil & Gas Operator | Jul 1978 |
| 13952 | Imperium Energy Inc | Atlanta, TX 75551 | Oil & Gas Operator | Dec 2025 |
| 13953 | Impetro Nonop LLC | | Oil Operator | Sep 2025 |
| 13954 | Impetro Oil & Gas, LLC | San Antonio, TX 78258 | Oil & Gas Operator | Jun 2018 |
| 13955 | Impetro Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2020 |
| 13956 | Impetro Resources LLC | | Oil & Gas Operator | Dec 2025 |
| 13957 | Ina Street Operations, Inc. | Skellytown, TX 79080 | Oil & Gas Operator | Nov 2012 |
| 13958 | Inabnet Est., H. Inabnet, Agt. | | Gas Operator | Jul 2005 |
| 13959 | Inactive Operator | | Oil Operator | Dec 1982 |
| 13960 | Inca Oil Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2009 |
| 13961 | Incendium Resources LLC | Argyle, TX 76226 | Oil & Gas Operator | Mar 2026 |
| 13962 | Incline Energy | Midland, TX 79710 | Oil & Gas Operator | Mar 2026 |
| 13963 | Incline Operating LLC | | Oil & Gas Operator | Dec 2025 |
| 13964 | Incline Reserves | | Oil Operator | Apr 1988 |
| 13965 | Incline Reserves Inc | Topeka, KS BAD ADDR | Oil & Gas Operator | Mar 1994 |
| 13966 | Incremental Oil & Gas (Florence) LLC | | Oil & Gas Operator | Jan 2026 |
| 13967 | Incremental Oil & Gas USA Holdings Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
| 13968 | Inda Oil Unlimited | Bartlesville, OK 74006 | Oil Operator | Dec 2023 |
| 13969 | Independence Energy LLC | | Oil Operator | Sep 2025 |
| 13970 | Independence Resources MGMT, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2021 |
| 13971 | Independent Expl Company | | Oil & Gas Operator | Dec 2000 |
| 13972 | Independent Oil Investors | Lakeside, MI 49116 | Oil & Gas Operator | Dec 1992 |
| 13973 | Independent Production Company | Greenwood VIllage, CO 80121 | Oil & Gas Operator | May 2003 |
| 13974 | Indexgeo & Associates, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2009 |
| 13975 | Indian Creek Resources Inc | Loveland, CO 80538 | Oil & Gas Operator | Dec 2024 |
| 13976 | Indian Exploration, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Mar 2026 |
| 13977 | Indian Hill Gas Co Inc | Fayette City, PA 15438-1203 | Oil & Gas Operator | Dec 2025 |
| 13978 | Indian Hills Resources LLC | Williamsburg, MI 49690 | Oil & Gas Operator | Dec 2024 |
| 13979 | Indian Nation Energy Company | Wewoka, OK 74884-3456 | Oil & Gas Operator | Apr 2020 |
| 13980 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Mar 2026 |
| 13981 | Indian Oil LTD. | Whitsett, TX 78075 | Oil & Gas Operator | Mar 2026 |
| 13982 | Indian Territory Operating LLC | Salado, TX 76571 | Oil & Gas Operator | Jun 2025 |
| 13983 | Indian Wells Oil | | Oil & Gas Operator | Jul 1995 |
| 13984 | Indian Wells Oil Co | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2000 |
| 13985 | Indiana Petroleum Cont | | Oil Operator | Dec 2024 |
| 13986 | Indiana Petroleum Contractors Inc. | | Oil Operator | Dec 2024 |
| 13987 | Indianola Oil Inc | Bartlesville, OK 74005 | Oil & Gas Operator | Aug 2000 |
| 13988 | Indiek, John | Offerle, KS 67563 | Oil Operator | Nov 2005 |
| 13989 | Indigo Haynesville LLC | | Gas Operator | Feb 2018 |
| 13990 | Indigo II Louisiana Operating LLC | | Oil & Gas Operator | Feb 2015 |
| 13991 | Indigo Minerals LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 13992 | Indigo Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2019 |
| 13993 | Indrex Inc | Tulsa, OK 74133 | Oil & Gas Operator | Dec 2000 |
| 13994 | Industrial Gas Services Inc | Wheat Ridge, CO 80033 | Oil & Gas Operator | Feb 2023 |
| 13995 | Industrial Pollution Control | | Oil & Gas Operator | Mar 1985 |
| 13996 | Industry Standard Supplies Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2024 |
| 13997 | Indy Oil, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2004 |
| 13998 | Ineos USA Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Mar 2026 |
| 13999 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 14000 | Inferno Energy | Yates Center, KS 66783 | Oil Operator | Sep 2025 |