| 13401 | Hummon Corp | Medicine Lodge, KS 67104 | Oil & Gas Operator | Feb 2026 |
| 13402 | Humphrey Mark | Morris, OK 74445-2816 | Oil & Gas Operator | Sep 2021 |
| 13403 | Humphrey, Thos.D. Oil Prop.,Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Aug 1999 |
| 13404 | Humphrey-Bashford Oil, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2010 |
| 13405 | Hungerford Oil & Gas Inc | Helena, OK 73741 | Oil & Gas Operator | Nov 2000 |
| 13406 | Hungerford Oil Partners | Williamsville, NY 14221 | Oil Operator | Dec 2024 |
| 13407 | Hunt Brothers Producing Co Inc | Redding, CA 96049-2516 | Oil & Gas Operator | Sep 2012 |
| 13408 | Hunt Chris Water Hauling Contractor Inc | Keyes, OK 73947-0004 | Oil Operator | Jun 2008 |
| 13409 | Hunt Cimarron Limited Partnership | Roswell, NM 88202 | Oil & Gas Operator | Apr 2026 |
| 13410 | Hunt Cimarron LTD. Partnership | Roswell, NM 88202 | Oil & Gas Operator | Jun 2026 |
| 13411 | Hunt Energy Corporation | | Oil & Gas Operator | Feb 2002 |
| 13412 | Hunt Engineering Inc | Norman, OK 73069-4093 | Oil & Gas Operator | Feb 2019 |
| 13413 | Hunt Enterprises | | Oil & Gas Operator | Jan 2026 |
| 13414 | Hunt H L | Dallas, TX 75202-2785 | Oil & Gas Operator | Jan 2025 |
| 13415 | Hunt Industries, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2000 |
| 13416 | Hunt Investment Corporation | | Oil & Gas Operator | Jun 1989 |
| 13417 | Hunt Marcellus Opr Co LLC | Wilcox, PA 15870 | Oil & Gas Operator | Jan 2019 |
| 13418 | Hunt Oil Co., Et Al | | Oil & Gas Operator | Nov 1992 |
| 13419 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Jun 2026 |
| 13420 | Hunt Oil, LLC | Garnett, KS 66032 | Oil Operator | Nov 2025 |
| 13421 | Hunt Operating, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Jun 2026 |
| 13422 | Hunt Petroleum (Aec), Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 13423 | Hunt Petroleum Corp. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 13424 | Hunt Petroleum, Inc. | Houston, TX 772511350 | Oil & Gas Operator | Nov 2002 |
| 13425 | Hunt, Hassie Exploration Company | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 13426 | Hunt, Judith R. | Findley Lake, NY 14736 | Gas Operator | Dec 2024 |
| 13427 | Hunt, WM. Herbert, Trust Est. | Dallas, TX 75201 | Oil & Gas Operator | Sep 1998 |
| 13428 | Hunter & Hedrick Production, Inc | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 1995 |
| 13429 | Hunter & McDonald | Wichita Falls, TX 76309 | Oil & Gas Operator | Jul 2001 |
| 13430 | Hunter Brothers | Wichita Falls, TX 76302 | Oil & Gas Operator | Jul 2007 |
| 13431 | Hunter Edison Oil Development LLC | | Oil & Gas Operator | Mar 2026 |
| 13432 | Hunter Energy, Inc. | Hurst, TX 76053 | Oil & Gas Operator | Jun 2026 |
| 13433 | Hunter Oil & Gas Co. | Bangs, TX 76823 | Oil & Gas Operator | Jun 2026 |
| 13434 | Hunter Oil & Gas, LLC | | Oil & Gas Operator | Oct 2001 |
| 13435 | Hunter Oil Corporation | Gruver, TX 79040 | Oil & Gas Operator | Jun 2026 |
| 13436 | Hunter Petroleum Inc. | Alice, TX 78333 | Oil & Gas Operator | May 2014 |
| 13437 | Hunter, Rocquelle | Coleman, TX 76834 | Oil Operator | Jun 2026 |
| 13438 | Hunters Creek Oil & Gas | Houston, TX 77042 | Oil & Gas Operator | Jun 2026 |
| 13439 | Huntford Resources Corp | Englewood, CO 80112 | Oil & Gas Operator | Nov 2001 |
| 13440 | Huntington Beach Company | | Oil & Gas Operator | Dec 1998 |
| 13441 | Huntington Beach Pacific Coast Enterprises LLC | | Oil & Gas Operator | Jan 2018 |
| 13442 | Huntington Energy LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Jun 2026 |
| 13443 | Huntington Midway Incorporated | Huntington, WV 25709 | Oil & Gas Operator | Dec 2021 |
| 13444 | Huntington Resources, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2006 |
| 13445 | Huntington Signal Oil Company | | Oil & Gas Operator | Dec 1997 |
| 13446 | Huntland Properties, LTD. | Santa Anna, TX 76878 | Oil & Gas Operator | Jun 2026 |
| 13447 | Huntley & Huntley Inc | Monroeville, PA 15146-2302 | Oil & Gas Operator | Dec 2019 |
| 13448 | Huntlyn Operating, LLC | | Oil & Gas Operator | Sep 2022 |
| 13449 | Hunton Oil & Gas Corporation | Oklahoma City, OK 73154-0191 | Oil & Gas Operator | May 2019 |
| 13450 | Hunton Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2026 |
| 13451 | Huntwood Resources, LLC | Huntsville, TX 77340 | Oil Operator | Jun 2026 |
| 13452 | Hupfer Oil & Gas | Hays, KS 67601 | Oil & Gas Operator | Dec 1993 |
| 13453 | Hupfer Operating, Inc. | Shawnee, KS 66203 | Oil & Gas Operator | Dec 2019 |
| 13454 | Hurd Ent.LTD/U.S.Enercorp,LLC | San Antonio, TX 78209 | Oil & Gas Operator | Aug 2002 |
| 13455 | Hurd Enterprises, LTD. | San Antonio, TX 78209 | Oil & Gas Operator | Jun 2026 |
| 13456 | Hurd Oil Company | | Oil & Gas Operator | Jun 2015 |
| 13457 | Hurley Charles B | Santa Ana, CA 92706 | Oil & Gas Operator | Apr 2015 |
| 13458 | Hurley Oil And Gas Company | | Oil & Gas Operator | Jan 1997 |
| 13459 | Hurley Oil Company | | Oil Operator | Dec 1988 |
| 13460 | Hurley Petroleum Corporation | Baton Rouge, LA 70821 | Oil & Gas Operator | Feb 2000 |
| 13461 | Hurricane Energy Corporation | | Oil & Gas Operator | Dec 2000 |
| 13462 | Hurricane Iron & Steel, Inc. | | Oil Operator | Dec 1993 |
| 13463 | Hurricane Oil And Gas Co., Inc. | Houston, TX 77057 | Oil & Gas Operator | Mar 2008 |
| 13464 | Hurst Oil & Gas, Inc. | Hillsboro, TX 76645 | Oil & Gas Operator | Dec 2024 |
| 13465 | Hurst Oil Investments Inc | Oklahoma City, OK 73172 | Oil & Gas Operator | Feb 2015 |
| 13466 | Hurt, W C & C E | | Oil Operator | Dec 2006 |
| 13467 | Husain, Mrs. Shahnaz | Tulsa, OK 74136 | Oil Operator | Nov 1996 |
| 13468 | Huseman Oil International Inc | | Oil & Gas Operator | Feb 1992 |
| 13469 | Husfeld, Rose Marie | Bowie, TX 76230 | Oil & Gas Operator | Aug 2017 |
| 13470 | Husfeld, Walter H. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2007 |
| 13471 | Husky Oil Company | Cody, WY 82414 | Oil & Gas Operator | Dec 1984 |
| 13472 | Husky Petroleum | Seminole, OK 74818-1181 | Oil Operator | Feb 2012 |
| 13473 | Husky Ventures Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2026 |
| 13474 | Huson Corp. | Albany, TX 76430 | Oil & Gas Operator | May 2003 |
| 13475 | Huston Minerals LP | Albany, TX 76430 | Oil & Gas Operator | Jun 2026 |
| 13476 | Huston Oil | Woodson, TX 76491 | Oil & Gas Operator | Oct 2010 |
| 13477 | Hutchinson Oil C | | Oil & Gas Operator | May 1995 |
| 13478 | Hutchinson Oil Co. | | Oil & Gas Operator | Feb 2026 |
| 13479 | Hutchison Jay Oi | | Oil Operator | Sep 1991 |
| 13480 | Hutson Oil Co. | | Oil & Gas Operator | Nov 2024 |
| 13481 | Hutton Charles N | | Oil Operator | Dec 1994 |
| 13482 | Hutton Gas Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 13483 | Hutton, Charles N., SR. | Iola, KS 66749 | Oil Operator | Nov 2007 |
| 13484 | Hux Oil Company LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Mar 2026 |
| 13485 | Hvi Cat Canyon Inc. | | Oil & Gas Operator | Dec 2025 |
| 13486 | HW Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 2026 |
| 13487 | HWH Production, LLC | Muenster, TX 76252 | Oil Operator | Jun 2026 |
| 13488 | Hy-Mark Oil & Gas, Inc. | | Oil Operator | Mar 1991 |
| 13489 | Hy-Tech, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Feb 2017 |
| 13490 | Hyalite Energy Corporation | Pampa, TX 79066 | Oil & Gas Operator | Feb 2026 |
| 13491 | Hyatt Exploration, Inc. | | Oil Operator | Jul 1995 |
| 13492 | Hybrid Operating, Incorporated | Carlsbad, CA 92009 | Oil & Gas Operator | Jun 2026 |
| 13493 | Hyco Oil Inc | Newcastle, WY 82701 | Oil & Gas Operator | Dec 2006 |
| 13494 | Hyde-Marrs, Inc. | Wichita, KS 67202 | Oil Operator | Aug 1997 |
| 13495 | Hyder, Dean L. | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 13496 | Hydroc Oil Company | Borger, TX 79007 | Oil & Gas Operator | May 2012 |
| 13497 | Hydrocarbon Exploration, Inc. | | Oil & Gas Operator | Dec 2008 |
| 13498 | Hydrocarbon Generation, Inc. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2024 |
| 13499 | Hydrocarbon Horizons, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jun 2023 |
| 13500 | Hydrocarbon Inv, Inc | | Oil Operator | Dec 2018 |