| 13501 | Holt Andrew L "Mickey" | Pawhuska, OK 74056 | Oil & Gas Operator | Aug 2008 |
| 13502 | Holt Brothers | Gruver, TX 79040 | Gas Operator | May 2025 |
| 13503 | Holt IVan | | Oil Operator | Mar 1989 |
| 13504 | Holt IVan Leroy | | Oil & Gas Operator | Jan 1994 |
| 13505 | Holt James | Skiatook, OK 74070-0006 | Oil & Gas Operator | Feb 2020 |
| 13506 | Holt Jean | Claremore, OK 74017-9439 | Oil Operator | Mar 2015 |
| 13507 | Holt Oil & Gas C | | Oil Operator | Sep 1984 |
| 13508 | Holt Oil & Gas Corp | Dallas, TX 75231 | Oil & Gas Operator | Apr 1995 |
| 13509 | Holt Oil And Cattle LLC | Bedias, TX 77831 | Oil & Gas Operator | May 2025 |
| 13510 | Holt, Carol | Independence, KS 67301 | Oil Operator | Dec 2024 |
| 13511 | Holt, Roger | Cherryvale, KS 67335 | Gas Operator | Mar 2003 |
| 13512 | Holtom, Bill, A General Partnership | Saint Paul, KS 66771 | Oil Operator | Jun 2024 |
| 13513 | Holton Brothers | Canton, KS 67428 | Oil Operator | Apr 1990 |
| 13514 | Holwell Drilling Company | | Oil Operator | Sep 1992 |
| 13515 | Hombre Oil Co., LTD. | Tyler, TX 75713 | Oil & Gas Operator | Apr 2021 |
| 13516 | Home Gas & Oil Co Inc | Indiana, PA 15701-1532 | Oil & Gas Operator | Dec 2024 |
| 13517 | Home Petroleum Corp | Victoria, TX 77902 | Oil & Gas Operator | May 2025 |
| 13518 | Home-Stake Oil & Gas Company | Plano, TX 75093 | Oil & Gas Operator | Feb 2025 |
| 13519 | Home-Stake Royalty Corp., The | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2014 |
| 13520 | Homeland Energy GP | Campbellsville, KY 42719 | Oil & Gas Operator | Dec 2021 |
| 13521 | Homeland Energy Ventures LLC | Pittsburgh, PA 15241-1633 | Oil & Gas Operator | Dec 2008 |
| 13522 | Homeland Gas & Oil, Inc | Roosevelt, UT 84066-1574 | Oil & Gas Operator | Mar 2025 |
| 13523 | Homeplace Oil And Gas | Caldwell, TX 77836 | Oil & Gas Operator | Feb 2021 |
| 13524 | Homer D. Oliver | | Gas Operator | Sep 1998 |
| 13525 | Homer E. Hines, Inc. | | Oil Operator | Sep 1978 |
| 13526 | Homer Oil Co LLC | Holdenville, OK 74848-3232 | Oil Operator | Mar 2025 |
| 13527 | Homestead Oil Inc | | Oil & Gas Operator | Jan 2018 |
| 13528 | Hominy Consulting, LLC | Canadian, TX 79014 | Oil & Gas Operator | May 2025 |
| 13529 | Hon R J Oil & Ga | | Oil Operator | Nov 1990 |
| 13530 | Hondo Drilling Company | Midland, TX 79702 | Oil & Gas Operator | Nov 1996 |
| 13531 | Hondo Oil & Gas | Houston, TX 77042 | Oil & Gas Operator | Oct 1995 |
| 13532 | Hondo Oil & Gas Company | Roswell, NM 88202 | Oil & Gas Operator | Aug 2006 |
| 13533 | Hondo Operating, Inc. | | Oil & Gas Operator | Aug 1997 |
| 13534 | Honeck Oil Company | Austin, TX 78716 | Oil & Gas Operator | Mar 2008 |
| 13535 | Honeck Oil Company, LP | Austin, TX 78716 | Oil & Gas Operator | Dec 2010 |
| 13536 | Honey Oil Co | Wichita, KS 67226 | Oil & Gas Operator | Mar 2009 |
| 13537 | Honey Well, LLC | Lenexa, KS 66219 | Oil Operator | Jan 2025 |
| 13538 | Honeymon Drilling Company LTD | Oklahoma City, OK 73147 | Oil & Gas Operator | Feb 1995 |
| 13539 | Hood, J. F. | Holliday, TX 76366 | Oil & Gas Operator | Apr 2010 |
| 13540 | Hood, J. Frank, Jr. | Arlington, TX 76006 | Oil & Gas Operator | May 2025 |
| 13541 | Hood, Joe B. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2008 |
| 13542 | Hooker Phil Oil Operator | | Oil Operator | Aug 1996 |
| 13543 | Hooks & Hooks | Abilene, TX 79608 | Oil & Gas Operator | Feb 1999 |
| 13544 | Hooks Dwain | Tatums, OK 73487 | Oil & Gas Operator | Oct 2024 |
| 13545 | Hooper & Sons Investments Co.Inc | Tenaha, TX 75974 | Gas Operator | Nov 1997 |
| 13546 | Hooper, DR. Oil & Royalty Co. | Conroe, TX 77304 | Oil & Gas Operator | Sep 1999 |
| 13547 | Hootkins, Seymour G. | Archer City, TX 76351 | Oil & Gas Operator | Apr 1997 |
| 13548 | Hootkins-Smith,La LTD. | | Gas Operator | Jun 1985 |
| 13549 | Hoots Jr, Willard | Martinsville, IN 46151 | Oil Operator | Dec 2023 |
| 13550 | Hoover & Wilson Exp & Prod Inc | Fort Smith, AR 72913-5171 | Gas Operator | Jul 2013 |
| 13551 | Hoover Frank W Dba Cherokee Drilling | Miramar Beach, FL 32550 | Oil & Gas Operator | Dec 2023 |
| 13552 | Hoover Gregory M | Wattsburg, PA 16442-2209 | Gas Operator | Dec 2024 |
| 13553 | Hoover Noble C | | Oil Operator | Nov 1992 |
| 13554 | Hoover Petroleum Company, LLC | Midland, TX 79701 | Oil Operator | May 2025 |
| 13555 | Hoover Producing & Operating | Newark, OH 43055 | Oil & Gas Operator | Dec 2001 |
| 13556 | Hopco Operating, Inc. | Stafford, TX 77497 | Oil & Gas Operator | Dec 2016 |
| 13557 | Hopco Resources Inc | Columbus, OH 43065 | Oil & Gas Operator | Dec 2024 |
| 13558 | Hope Company, LLC | Longmont, CO 80502 | Gas Operator | Feb 2012 |
| 13559 | Hope Energy, L.L.C. | Snyder, TX 79549 | Oil & Gas Operator | May 2025 |
| 13560 | Hope Gas, Inc. | Richmond, VA 23261 | Oil & Gas Operator | Dec 2010 |
| 13561 | Hope Oil Corporation | | Oil Operator | Feb 2025 |
| 13562 | Hope Oil Inc | Midland, TX 79702 | Oil & Gas Operator | Oct 2021 |
| 13563 | Hope Production, Inc. | Edinburg, TX 78540 | Oil & Gas Operator | Jan 2000 |
| 13564 | Hope'S Windows, Inc. | Jamestown, NY 14702 | Gas Operator | Dec 2023 |
| 13565 | Hopewell Oil & Gas Development Company | Columbus, OH 43228 | Oil & Gas Operator | Dec 2019 |
| 13566 | Hopewell Operating, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | May 2025 |
| 13567 | Hopkins Engineering, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 1996 |
| 13568 | Hopkins, T. M. Operating Co. | Kilgore, TX 75663 | Oil & Gas Operator | May 2025 |
| 13569 | Hoppe Oil & Gas | | Oil Operator | Nov 1992 |
| 13570 | Hoppe Oil & Gas Co., Inc. | Wichita, KS 67202 | Oil Operator | Jul 1998 |
| 13571 | Hopper Oil Co., Inc. | Winfield, KS 67156 | Oil Operator | Jan 2025 |
| 13572 | Hopper Oil Compa | | Oil Operator | Sep 1988 |
| 13573 | Hopper, Harlan | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 13574 | Hopper, Thornton Co. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 13575 | Hoppes Helen E | Depew, OK 74028-3428 | Oil & Gas Operator | Apr 2015 |
| 13576 | Horadam, Henry L. | Victoria, TX 77905 | Oil & Gas Operator | Oct 2008 |
| 13577 | Horan, Ken L. | Cross Plains, TX 76443 | Gas Operator | May 2002 |
| 13578 | Horansky Burrell Revocable Trust | Wichita Falls, TX 76309 | Oil Operator | May 2025 |
| 13579 | Horany, Ray & Ernest | Olney, TX 76374 | Oil & Gas Operator | May 2002 |
| 13580 | Horizon Barnsdall Energy Part LTD I Osage Only | | Oil Operator | Feb 2012 |
| 13581 | Horizon Energy | Vergas, MN 56587 | Oil & Gas Operator | May 2025 |
| 13582 | Horizon Energy Corporation | Sand Fork, WV 26430 | Oil & Gas Operator | Dec 2021 |
| 13583 | Horizon Expl. & Dev. Co., Inc. | | Oil & Gas Operator | Jun 1995 |
| 13584 | Horizon Exploration Company | Houston, TX 77019 | Oil & Gas Operator | Aug 2002 |
| 13585 | Horizon Exploration Services | El Paso, TX 79922 | Oil Operator | May 2025 |
| 13586 | Horizon Natural Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2024 |
| 13587 | Horizon Natural Gas, LLC | | Oil & Gas Operator | Dec 2018 |
| 13588 | Horizon Natural Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2019 |
| 13589 | Horizon Oil & Ga | | Oil & Gas Operator | Jan 1992 |
| 13590 | Horizon Oil & Gas Co. | Dallas, TX 75221 | Oil & Gas Operator | Jan 2005 |
| 13591 | Horizon Operating Co. | | Oil & Gas Operator | Dec 1995 |
| 13592 | Horizon Prod. And Operating, LLC | Houston, TX 77019 | Oil & Gas Operator | May 2025 |
| 13593 | Horizon Resources Inc | Fort Worth, TX 76101-1978 | Oil & Gas Operator | Jul 2006 |
| 13594 | Horizon Ridge Oil Company | Austin, TX 78738 | Oil Operator | May 2025 |
| 13595 | Horizon Well Services, Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 2025 |
| 13596 | Horizontal Development & Production Inc | Lubbock, TX 79493 | Oil & Gas Operator | Jul 2002 |
| 13597 | Horn Eddie L Dba B & E Investments | Bristow, OK 74010 | Oil & Gas Operator | Feb 2025 |
| 13598 | Horn Energy | Eastland, TX 76448 | Oil & Gas Operator | May 2025 |
| 13599 | Horn Oil Company | Bristow, OK 74010 | Oil & Gas Operator | Feb 2025 |
| 13600 | Horn R L & Sons Drilling | | Oil Operator | Jun 1997 |