| 13501 | I & F Oil And Farm | | Oil & Gas Operator | Dec 2009 |
| 13502 | I & L Development Co. | Dallas, TX 75219 | Oil & Gas Operator | Mar 1996 |
| 13503 | I & M Oil Production, LLC | Overland Park, KS 66209 | Oil & Gas Operator | Mar 2023 |
| 13504 | I C Gas Amcana Inc | Tulsa, OK 74103-3713 | Oil & Gas Operator | Apr 1996 |
| 13505 | I D Oil Company Inc | Sperry, OK 74073-9417 | Oil Operator | Jan 2013 |
| 13506 | I T Enterprises Inc | Tulsa, OK 74170-0775 | Oil & Gas Operator | Mar 2011 |
| 13507 | I-Mac Petroleum Service Inc | Bixby, OK 74008-3778 | Oil & Gas Operator | Apr 2020 |
| 13508 | I. H. Delatte | | Oil & Gas Operator | Jul 1991 |
| 13509 | I. J. Wilhite | | Oil Operator | Apr 2000 |
| 13510 | I. J. Wilhite & Star Drilling, Inc. | | Oil Operator | Sep 1973 |
| 13511 | I. W. McKnight,Production | | Oil Operator | Jan 1986 |
| 13512 | I.G. Petroleum, L.L.C | | Oil & Gas Operator | Dec 2018 |
| 13513 | I.T. Corporation | Arlington, TX 76016 | Oil & Gas Operator | Apr 2024 |
| 13514 | Ia Operating, Inc. | Edmond, OK 73003 | Oil Operator | Dec 2023 |
| 13515 | Iacobucci, Gary | Eden, NY 14057 | Gas Operator | Dec 2022 |
| 13516 | Iacx Energy LLC | Dallas, TX 75240 | Oil & Gas Operator | Mar 2024 |
| 13517 | Iacx Production LLC | Dallas, TX 75244 | Oil & Gas Operator | Jan 2024 |
| 13518 | Iantha Resources LLC | Garnett, KS 66032 | Oil Operator | Dec 2019 |
| 13519 | Iantorno Brothers Oil | Bolivar, NY 14715 | Oil & Gas Operator | Dec 2022 |
| 13520 | Ibc Petroleum, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2024 |
| 13521 | Iberia Operating Corporation | | Oil & Gas Operator | Jan 2003 |
| 13522 | Ibex Resources Operating LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2007 |
| 13523 | Ibex Resources, LLC | Austin, TX 78751 | Oil & Gas Operator | Jul 1999 |
| 13524 | Ica Energy Operating, L.L.C. | Odessa, TX 79760 | Oil & Gas Operator | Apr 2024 |
| 13525 | Icarus Operating Corporation | Spring, TX 77393 | Oil & Gas Operator | Apr 2024 |
| 13526 | Ice Brothers, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Apr 2024 |
| 13527 | Ice Well Services, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Apr 2024 |
| 13528 | Icg Tygart Valley, LLC | Grafton, WV 26354 | Oil & Gas Operator | Dec 2021 |
| 13529 | Ickert Enterprises | Olney, TX 76374 | Oil & Gas Operator | Apr 2024 |
| 13530 | Ickert, A. F. Jr. | Olney, TX 76374 | Oil & Gas Operator | Apr 1998 |
| 13531 | Icon Energy Company | Oklahoma City, OK 73156-1613 | Oil & Gas Operator | Dec 2023 |
| 13532 | Iconic Oil & Gas LLC | Dallas, TX 75229 | Gas Operator | Dec 2023 |
| 13533 | Icor Oil & Gas Of Okla LTD | Claremore, OK 74018-2132 | Oil & Gas Operator | Mar 2015 |
| 13534 | Ics Energy LLC | Stamford, TX 79553 | Oil & Gas Operator | Apr 2024 |
| 13535 | Idaho Oil Co., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Mar 2008 |
| 13536 | Idc Energy Corp | Warren, PA 16365-0792 | Oil & Gas Operator | Dec 2021 |
| 13537 | Idgas, Inc. | Austin, TX 78746 | Oil & Gas Operator | Oct 1995 |
| 13538 | Igas Corp | Charlottesville, VA 22905-5246 | Gas Operator | Dec 2000 |
| 13539 | Igleheart Warren | Edmond, OK 73034-8964 | Oil & Gas Operator | Jun 2016 |
| 13540 | Igwt, Inc. | Rose Hill, KS 67133 | Oil & Gas Operator | Dec 2023 |
| 13541 | Ijs Oil | Saint Jo, TX 76265 | Oil & Gas Operator | Apr 2024 |
| 13542 | Ikard, Alan | Electra, TX 76360 | Oil & Gas Operator | Apr 2024 |
| 13543 | Ike Energy LLC | | Oil & Gas Operator | Dec 2023 |
| 13544 | Ike Lovelady, Inc. | | Oil & Gas Operator | Jun 1985 |
| 13545 | Ike Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
| 13546 | Ikenberry Herman & Ikenberry | | Oil Operator | Jul 1999 |
| 13547 | Iks Operating | Upton, WY 82703 | Oil & Gas Operator | Jul 2013 |
| 13548 | Il Geer & Sons Partnership | | Oil & Gas Operator | Dec 2013 |
| 13549 | Illini Development Company | | Oil & Gas Operator | Dec 2002 |
| 13550 | Illoma Oil Company Inc | Algonquin, IL 60102-1825 | Oil & Gas Operator | Mar 2015 |
| 13551 | Imagery Exploration, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Apr 2024 |
| 13552 | Imc Exploration Co. | | Oil & Gas Operator | Oct 1986 |
| 13553 | Imhoff David | Stroud, OK 74079-9725 | Oil & Gas Operator | Nov 2018 |
| 13554 | Immink Merle | | Oil & Gas Operator | Jan 2024 |
| 13555 | Imod Oil Prod LLC | Pleasantville, PA 16341-0149 | Oil & Gas Operator | Dec 2009 |
| 13556 | Impact Energy Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Feb 2024 |
| 13557 | Impact Exploration & Production LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Feb 2024 |
| 13558 | Impact Exploration Company | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
| 13559 | Imperator Investments LLC | Shawnee, KS 66217 | Oil Operator | Sep 2023 |
| 13560 | Imperial American Oil Corporation | Wichita, KS 67205 | Oil Operator | Dec 2009 |
| 13561 | Imperial Gas Resources LLC | Austin, TX 78701 | Oil & Gas Operator | Apr 2024 |
| 13562 | Imperial Occidental | | Oil & Gas Operator | Nov 2023 |
| 13563 | Imperial Oil & G | | Gas Operator | Jan 1990 |
| 13564 | Imperial Oil Com | | Oil & Gas Operator | Dec 1992 |
| 13565 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 13566 | Imperial Oil Of North Dakota, Inc. | | Oil & Gas Operator | Jul 2023 |
| 13567 | Imperial Oil Properties, Inc. | Wichita, KS 67201 | Oil & Gas Operator | Jun 2006 |
| 13568 | Imperial Operating Co., L.L.C. | Midland, TX 79701 | Oil Operator | Sep 2023 |
| 13569 | Imperial Petroleum, Inc. | Evansville, IN 47725 | Oil & Gas Operator | Jan 2005 |
| 13570 | Imperial-American Energy,Inc. | | Oil & Gas Operator | Jul 1978 |
| 13571 | Impetro Nonop LLC | | Oil Operator | Dec 2022 |
| 13572 | Impetro Oil & Gas, LLC | San Antonio, TX 78258 | Oil & Gas Operator | Jun 2018 |
| 13573 | Impetro Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2020 |
| 13574 | Impetro Resources LLC | | Oil & Gas Operator | Jan 2024 |
| 13575 | Ina Street Operations, Inc. | Skellytown, TX 79080 | Oil & Gas Operator | Nov 2012 |
| 13576 | Inactive Operator | | Oil Operator | Dec 1982 |
| 13577 | Inca Oil Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2009 |
| 13578 | Incline Energy | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 13579 | Incline Reserves | | Oil Operator | Apr 1988 |
| 13580 | Incline Reserves Inc | Topeka, KS BAD ADDR | Oil & Gas Operator | Mar 1994 |
| 13581 | Incremental Oil & Gas (Florence) LLC | | Oil & Gas Operator | Jan 2024 |
| 13582 | Incremental Oil & Gas USA Holdings Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
| 13583 | Inda Oil Unlimited | Dewey, OK 74029-2843 | Oil Operator | Dec 2023 |
| 13584 | Independence Resources MGMT, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2021 |
| 13585 | Independent Exploration Company | | Oil & Gas Operator | Dec 2000 |
| 13586 | Independent Oil Investors | Lakeside, MI 49116 | Oil & Gas Operator | Dec 1992 |
| 13587 | Independent Production Company | Greenwood VIllage, CO 80121 | Oil & Gas Operator | May 2003 |
| 13588 | Indexgeo & Associates, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2009 |
| 13589 | Indian Creek Oil, L.L.C. | Harrisville, WV 26362 | Gas Operator | Dec 2021 |
| 13590 | Indian Creek Resources Inc | Loveland, CO 80538 | Oil & Gas Operator | Feb 2024 |
| 13591 | Indian Exploration, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Apr 2024 |
| 13592 | Indian Hill Gas Co Inc | Fayette City, PA 15438-1203 | Oil & Gas Operator | Dec 2022 |
| 13593 | Indian Hills Resources LLC | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2023 |
| 13594 | Indian Nation Energy Company | Wewoka, OK 74884-3456 | Oil & Gas Operator | Apr 2020 |
| 13595 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2024 |
| 13596 | Indian Oil LTD. | Whitsett, TX 78075 | Oil & Gas Operator | Apr 2024 |
| 13597 | Indian Territory Operating LLC | | Oil & Gas Operator | Dec 2023 |
| 13598 | Indian Wells Oil | | Oil & Gas Operator | Jul 1995 |
| 13599 | Indian Wells Oil Co | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2000 |
| 13600 | Indianola Oil Inc | Bartlesville, OK 74005 | Oil & Gas Operator | Aug 2000 |