| 13401 | Hoffman, Carol | Strykersville, NY 14145 | Gas Operator | Dec 2023 |
| 13402 | Hoffman, Myrle F. | Denver, CO 80202 | Oil Operator | Dec 1986 |
| 13403 | Hoffmann Oil Company | Eastland, TX 76448 | Oil & Gas Operator | Jun 2025 |
| 13404 | Hofland, James D. | Kevin, MT 59454 | Oil & Gas Operator | Mar 2025 |
| 13405 | Hog Operating LLC | Dallas, TX 75201 | Oil & Gas Operator | Jun 2025 |
| 13406 | Hogan Drilling Company, Inc. | | Oil & Gas Operator | Mar 1981 |
| 13407 | Hogan Energy Corporation | | Oil & Gas Operator | Oct 1999 |
| 13408 | Hogan Energy, Inc. | | Oil & Gas Operator | Dec 2015 |
| 13409 | Hogan Exploration, Inc. | | Oil & Gas Operator | Mar 2000 |
| 13410 | Hogan, Wayne Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Jun 2006 |
| 13411 | Hogback Exploration Inc | Fort Smith, AR 72916 | Oil & Gas Operator | Apr 2025 |
| 13412 | Hoge Oil & Gas Expl Inc | Edmond, OK 73013-3709 | Oil & Gas Operator | Sep 2023 |
| 13413 | Hoggard, Kenneth | Loving, TX 76460 | Oil & Gas Operator | Jun 2025 |
| 13414 | Hogoboom Al Oilf | | Oil Operator | Oct 1990 |
| 13415 | Hoke Jr J T | Edmond, OK 73034 | Oil Operator | Nov 1998 |
| 13416 | Holbein & Wright Resources Inc. | Bandera, TX 78003 | Oil & Gas Operator | Jun 2025 |
| 13417 | Holbrook LLC | Bimble, KY 40915 | Oil & Gas Operator | Mar 2025 |
| 13418 | Holco Oil & Gas | Borger, TX 79008 | Oil & Gas Operator | Jun 2025 |
| 13419 | Holcomb Company, The | Freer, TX 78357 | Oil & Gas Operator | Aug 1996 |
| 13420 | Holcomb Enterprises | Clyde, TX 79510 | Oil & Gas Operator | Aug 2003 |
| 13421 | Holcomb Oil & Gas Inc | Farmington, NM 87401 | Oil & Gas Operator | Mar 2025 |
| 13422 | Holcomb Oil Comp | | Oil Operator | Sep 1991 |
| 13423 | Holden Energy Corporation | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2015 |
| 13424 | Holden Harold B | Billings, MT 59103 | Oil Operator | Jun 1996 |
| 13425 | Holden Oil & Gas | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 13426 | Holifield Oil Company | Giddings, TX 78942 | Oil & Gas Operator | Mar 2009 |
| 13427 | Holke Dave Consulting Inc | Meridian, ID 83646-4812 | Oil & Gas Operator | Mar 2025 |
| 13428 | Holl Investment Co | Logan, OH 43138 | Oil & Gas Operator | Dec 2019 |
| 13429 | Holland Assoc | | Oil Operator | Sep 1987 |
| 13430 | Holland Oil & Gas | Brookesmith, TX 76827 | Oil & Gas Operator | Dec 2010 |
| 13431 | Holland Oil Co. | Petrolia, TX 76377 | Oil Operator | Aug 2010 |
| 13432 | Holland Production Co | | Oil Operator | Aug 1982 |
| 13433 | Holland, W. M. | Petrolia, TX 76377 | Oil & Gas Operator | Jul 2009 |
| 13434 | Hollandsworth & Travis | Longview, TX 75606 | Oil & Gas Operator | Mar 2001 |
| 13435 | Hollandsworth & Travis Oil | Longview, TX 75606 | Oil Operator | May 2003 |
| 13436 | Holleman & Parks Oil & Gas Inc | | Oil & Gas Operator | May 1995 |
| 13437 | Hollenbeck, Lloyd D. | Andover, NY 14806 | Oil & Gas Operator | Dec 2023 |
| 13438 | Hollenshead Oil Co. | | Oil & Gas Operator | Mar 1992 |
| 13439 | Holler Oil Co. | San Angelo, TX 76906 | Oil & Gas Operator | Aug 2003 |
| 13440 | Holley Oil Company, LLC | Chappell Hill, TX 77426 | Oil & Gas Operator | Jun 2025 |
| 13441 | Holley Operating, L. L. C. | Abilene, TX 79601 | Oil Operator | Jun 2025 |
| 13442 | Holli-Tex Supply Co. | Holliday, TX 76366 | Oil & Gas Operator | May 2018 |
| 13443 | Holliday CSG Corp. | Holliday, TX 76366 | Oil & Gas Operator | Jun 2025 |
| 13444 | Holliday Drilling, Inc. | Stephenville, TX 76401 | Oil & Gas Operator | Dec 2020 |
| 13445 | Holliday Exploration Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2005 |
| 13446 | Hollimon Oil Corporation | Castroville, TX 78009 | Oil & Gas Operator | Nov 2016 |
| 13447 | Hollingsworth & Assoc | | Oil Operator | Feb 1987 |
| 13448 | Hollis & Kathryn Nichols | Shinglehouse, PA 16748-2112 | Gas Operator | Dec 2015 |
| 13449 | Hollobaugh Paul A | Mayport, PA 16240-1710 | Gas Operator | Dec 2024 |
| 13450 | Holloway David A | Okmulgee, OK 74447-9191 | Oil & Gas Operator | Mar 2025 |
| 13451 | Holloway Oil Company | Austin, TX 78764 | Oil & Gas Operator | Feb 2004 |
| 13452 | Hollrah Exploration Company | Edmond, OK 73012 | Oil & Gas Operator | Mar 2025 |
| 13453 | Hollub Production Company | Seguin, TX 78156 | Oil & Gas Operator | Jul 2000 |
| 13454 | Hollub, Lambert Drilling Company | Seguin, TX 78155 | Oil & Gas Operator | Jun 2025 |
| 13455 | Holly Energy Inc | | Oil Operator | Apr 1983 |
| 13456 | Holly Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Nov 2008 |
| 13457 | Holmac Oil Company | Hobbs, NM 88240 | Oil & Gas Operator | May 1996 |
| 13458 | Holman Kendall | Paden, OK 74860-7116 | Oil & Gas Operator | Jan 2025 |
| 13459 | Holman Ray | Okemah, OK 74859-0029 | Gas Operator | May 2024 |
| 13460 | Holman Robert W | Prague, OK 74864-9230 | Oil & Gas Operator | Jan 2019 |
| 13461 | Holmes Exploration, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2015 |
| 13462 | Holmes Mary Ellen | Bristow, OK 74010 | Oil Operator | Mar 2015 |
| 13463 | Holmes Western Oil Corporation | | Oil & Gas Operator | Apr 2025 |
| 13464 | Holson Well Service | Albany, TX 76430 | Oil & Gas Operator | Jun 2025 |
| 13465 | Holston-GR. Sou. Oil & Gas Co. | | Oil & Gas Operator | Mar 1981 |
| 13466 | Holt Andrew L "Mickey" | Pawhuska, OK 74056 | Oil & Gas Operator | Aug 2008 |
| 13467 | Holt Brothers | Gruver, TX 79040 | Gas Operator | Jun 2025 |
| 13468 | Holt IVan | | Oil Operator | Mar 1989 |
| 13469 | Holt IVan Leroy | | Oil & Gas Operator | Jan 1994 |
| 13470 | Holt James | Skiatook, OK 74070-0006 | Oil & Gas Operator | Feb 2020 |
| 13471 | Holt Jean | Claremore, OK 74017-9439 | Oil Operator | Mar 2015 |
| 13472 | Holt Oil & Gas C | | Oil Operator | Sep 1984 |
| 13473 | Holt Oil & Gas Corp | Dallas, TX 75231 | Oil & Gas Operator | Apr 1995 |
| 13474 | Holt Oil And Cattle LLC | Bedias, TX 77831 | Oil & Gas Operator | Jun 2025 |
| 13475 | Holt, Carol | Independence, KS 67301 | Oil Operator | Feb 2025 |
| 13476 | Holt, Roger | Cherryvale, KS 67335 | Gas Operator | Mar 2003 |
| 13477 | Holtom, Bill, A General Partnership | Saint Paul, KS 66771 | Oil Operator | Jun 2024 |
| 13478 | Holton Brothers | Canton, KS 67428 | Oil Operator | Apr 1990 |
| 13479 | Holwell Drilling Company | | Oil Operator | Sep 1992 |
| 13480 | Hombre Oil Co., LTD. | Tyler, TX 75713 | Oil & Gas Operator | Apr 2021 |
| 13481 | Home Gas & Oil Co Inc | Indiana, PA 15701-1532 | Oil & Gas Operator | Dec 2024 |
| 13482 | Home Petroleum Corp | Victoria, TX 77902 | Oil & Gas Operator | Jun 2025 |
| 13483 | Home-Stake Oil & Gas Company | Plano, TX 75093 | Oil & Gas Operator | Feb 2025 |
| 13484 | Home-Stake Royalty Corp., The | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2014 |
| 13485 | Homeland Energy GP | Campbellsville, KY 42719 | Oil & Gas Operator | Dec 2021 |
| 13486 | Homeland Energy Ventures LLC | Pittsburgh, PA 15241-1633 | Oil & Gas Operator | Dec 2008 |
| 13487 | Homeland Gas & Oil, Inc | Roosevelt, UT 84066-1574 | Oil & Gas Operator | Mar 2025 |
| 13488 | Homeplace Oil And Gas | Caldwell, TX 77836 | Oil & Gas Operator | Feb 2021 |
| 13489 | Homer D. Oliver | | Gas Operator | Sep 1998 |
| 13490 | Homer E. Hines, Inc. | | Oil Operator | Sep 1978 |
| 13491 | Homer Oil Co LLC | Holdenville, OK 74848-3232 | Oil Operator | Mar 2025 |
| 13492 | Homestead Oil Inc | | Oil & Gas Operator | Jan 2018 |
| 13493 | Hominy Consulting, LLC | Canadian, TX 79014 | Oil & Gas Operator | Jun 2025 |
| 13494 | Hon R J Oil & Ga | | Oil Operator | Nov 1990 |
| 13495 | Hondo Drilling Company | Midland, TX 79702 | Oil & Gas Operator | Nov 1996 |
| 13496 | Hondo Oil & Gas | Houston, TX 77042 | Oil & Gas Operator | Oct 1995 |
| 13497 | Hondo Oil & Gas Company | Roswell, NM 88202 | Oil & Gas Operator | Aug 2006 |
| 13498 | Hondo Operating, Inc. | | Oil & Gas Operator | Aug 1997 |
| 13499 | Honeck Oil Company | Austin, TX 78716 | Oil & Gas Operator | Mar 2008 |
| 13500 | Honeck Oil Company, LP | Austin, TX 78716 | Oil & Gas Operator | Dec 2010 |