| 13501 | Hummingbird Oil, LLC | Sedan, KS 67361 | Oil Operator | Dec 2025 |
| 13502 | Hummon Corp | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2023 |
| 13503 | Humphrey Mark | Morris, OK 74445-2816 | Oil & Gas Operator | Sep 2021 |
| 13504 | Humphrey, Thos.D. Oil Prop.,Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Aug 1999 |
| 13505 | Humphrey-Bashford Oil, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2010 |
| 13506 | Hungerford Oil & Gas Inc | Helena, OK 73741 | Oil & Gas Operator | Nov 2000 |
| 13507 | Hungerford Oil Partners | Williamsville, NY 14221 | Oil Operator | Dec 2024 |
| 13508 | Hunt Brothers Producing Co Inc | Redding, CA 96049-2516 | Oil & Gas Operator | Sep 2012 |
| 13509 | Hunt Chris Water Hauling Contractor Inc | Keyes, OK 73947-0004 | Oil Operator | Jun 2008 |
| 13510 | Hunt Cimarron Limited Partnership | Roswell, NM 88202 | Oil & Gas Operator | Mar 2026 |
| 13511 | Hunt Cimarron LTD. Partnership | Roswell, NM 88202 | Oil & Gas Operator | May 2026 |
| 13512 | Hunt Energy Corporation | | Oil & Gas Operator | Feb 2002 |
| 13513 | Hunt Engineering Inc | Norman, OK 73069-4093 | Oil & Gas Operator | Feb 2019 |
| 13514 | Hunt Enterprises | | Oil & Gas Operator | Jan 2026 |
| 13515 | Hunt H L | Dallas, TX 75202-2785 | Oil & Gas Operator | Jan 2025 |
| 13516 | Hunt Industries, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2000 |
| 13517 | Hunt Investment Corporation | | Oil & Gas Operator | Jun 1989 |
| 13518 | Hunt Marcellus Opr Co LLC | Wilcox, PA 15870 | Oil & Gas Operator | Jan 2019 |
| 13519 | Hunt Oil Co., Et Al | | Oil & Gas Operator | Nov 1992 |
| 13520 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | May 2026 |
| 13521 | Hunt Oil, LLC | Garnett, KS 66032 | Oil Operator | Nov 2025 |
| 13522 | Hunt Operating, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | May 2026 |
| 13523 | Hunt Petroleum (Aec), Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 13524 | Hunt Petroleum Corp. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 13525 | Hunt Petroleum, Inc. | Houston, TX 772511350 | Oil & Gas Operator | Nov 2002 |
| 13526 | Hunt, Hassie Exploration Company | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 13527 | Hunt, Judith R. | Findley Lake, NY 14736 | Gas Operator | Dec 2024 |
| 13528 | Hunt, WM. Herbert, Trust Est. | Dallas, TX 75201 | Oil & Gas Operator | Sep 1998 |
| 13529 | Hunter & Hedrick Production, Inc | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 1995 |
| 13530 | Hunter & McDonald | Wichita Falls, TX 76309 | Oil & Gas Operator | Jul 2001 |
| 13531 | Hunter Brothers | Wichita Falls, TX 76302 | Oil & Gas Operator | Jul 2007 |
| 13532 | Hunter Edison Oil Development LLC | | Oil & Gas Operator | Mar 2026 |
| 13533 | Hunter Energy, Inc. | Hurst, TX 76053 | Oil & Gas Operator | May 2026 |
| 13534 | Hunter Oil & Gas Co. | Bangs, TX 76823 | Oil & Gas Operator | May 2026 |
| 13535 | Hunter Oil & Gas, LLC | | Oil & Gas Operator | Oct 2001 |
| 13536 | Hunter Oil Corporation | Gruver, TX 79040 | Oil & Gas Operator | May 2026 |
| 13537 | Hunter Petroleum Inc. | Alice, TX 78333 | Oil & Gas Operator | May 2014 |
| 13538 | Hunter, Rocquelle | Coleman, TX 76834 | Oil Operator | May 2026 |
| 13539 | Hunters Creek Oil & Gas | Houston, TX 77042 | Oil & Gas Operator | May 2026 |
| 13540 | Huntford Resources Corp | Englewood, CO 80112 | Oil & Gas Operator | Nov 2001 |
| 13541 | Huntington Beach Company | | Oil & Gas Operator | Dec 1998 |
| 13542 | Huntington Beach Pacific Coast Enterprises LLC | | Oil & Gas Operator | Jan 2018 |
| 13543 | Huntington Energy LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | May 2026 |
| 13544 | Huntington Midway Incorporated | Huntington, WV 25709 | Oil & Gas Operator | Dec 2021 |
| 13545 | Huntington Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2006 |
| 13546 | Huntington Signal Oil Company | | Oil & Gas Operator | Dec 1997 |
| 13547 | Huntland Properties, LTD. | Santa Anna, TX 76878 | Oil & Gas Operator | May 2026 |
| 13548 | Huntley & Huntley Inc | Monroeville, PA 15146-2302 | Oil & Gas Operator | Dec 2019 |
| 13549 | Huntlyn Operating, LLC | | Oil & Gas Operator | Sep 2022 |
| 13550 | Hunton Oil & Gas Corporation | Oklahoma City, OK 73154-0191 | Oil & Gas Operator | May 2019 |
| 13551 | Hunton Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2026 |
| 13552 | Huntwood Resources, LLC | Huntsville, TX 77340 | Oil Operator | May 2026 |
| 13553 | Hupfer Oil & Gas | Hays, KS 67601 | Oil & Gas Operator | Dec 1993 |
| 13554 | Hupfer Operating, Inc. | Shawnee, KS 66203 | Oil & Gas Operator | Dec 2019 |
| 13555 | Hurd Ent.LTD/U.S.Enercorp,LLC | San Antonio, TX 78209 | Oil & Gas Operator | Aug 2002 |
| 13556 | Hurd Enterprises, LTD. | San Antonio, TX 78209 | Oil & Gas Operator | May 2026 |
| 13557 | Hurd Oil Company | | Oil & Gas Operator | Jun 2015 |
| 13558 | Hurley Charles B | Santa Ana, CA 92706 | Oil & Gas Operator | Apr 2015 |
| 13559 | Hurley Oil And Gas Company | | Oil & Gas Operator | Jan 1997 |
| 13560 | Hurley Oil Company | | Oil Operator | Dec 1988 |
| 13561 | Hurley Petroleum Corporation | Baton Rouge, LA 70821 | Oil & Gas Operator | Feb 2000 |
| 13562 | Hurricane Energy Corporation | | Oil & Gas Operator | Dec 2000 |
| 13563 | Hurricane Iron & Steel, Inc. | | Oil Operator | Dec 1993 |
| 13564 | Hurricane Oil And Gas Co., Inc. | Houston, TX 77057 | Oil & Gas Operator | Mar 2008 |
| 13565 | Hurst Oil & Gas, Inc. | Hillsboro, TX 76645 | Oil & Gas Operator | Dec 2024 |
| 13566 | Hurst Oil Investments Inc | Oklahoma City, OK 73172 | Oil & Gas Operator | Feb 2015 |
| 13567 | Hurt, W C & C E | | Oil Operator | Dec 2006 |
| 13568 | Husain, Mrs. Shahnaz | Tulsa, OK 74136 | Oil Operator | Nov 1996 |
| 13569 | Huseman Oil International Inc | | Oil & Gas Operator | Feb 1992 |
| 13570 | Husfeld, Rose Marie | Bowie, TX 76230 | Oil & Gas Operator | Aug 2017 |
| 13571 | Husfeld, Walter H. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2007 |
| 13572 | Husky Oil Company | Cody, WY 82414 | Oil & Gas Operator | Dec 1984 |
| 13573 | Husky Petroleum | Seminole, OK 74818-1181 | Oil Operator | Feb 2012 |
| 13574 | Husky Ventures Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Jan 2026 |
| 13575 | Huson Corp. | Albany, TX 76430 | Oil & Gas Operator | May 2003 |
| 13576 | Huston Minerals LP | Albany, TX 76430 | Oil & Gas Operator | May 2026 |
| 13577 | Huston Oil | Woodson, TX 76491 | Oil & Gas Operator | Oct 2010 |
| 13578 | Hutchinson Oil C | | Oil & Gas Operator | May 1995 |
| 13579 | Hutchinson Oil Co. | | Oil & Gas Operator | Dec 2025 |
| 13580 | Hutchison Jay Oi | | Oil Operator | Sep 1991 |
| 13581 | Hutson Oil Co. | | Oil & Gas Operator | Nov 2024 |
| 13582 | Hutton Charles N | | Oil Operator | Dec 1994 |
| 13583 | Hutton Gas Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 13584 | Hutton, Charles N., SR. | Iola, KS 66749 | Oil Operator | Nov 2007 |
| 13585 | Hux Oil Company LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Feb 2026 |
| 13586 | Hvi Cat Canyon Inc. | | Oil & Gas Operator | Dec 2025 |
| 13587 | HW Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2026 |
| 13588 | HWH Production, LLC | Muenster, TX 76252 | Oil Operator | May 2026 |
| 13589 | Hy-Mark Oil & Gas, Inc. | | Oil Operator | Mar 1991 |
| 13590 | Hy-Tech, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Feb 2017 |
| 13591 | Hyalite Energy Corporation | Pampa, TX 79066 | Oil & Gas Operator | Jan 2026 |
| 13592 | Hyatt Exploration, Inc. | | Oil Operator | Jul 1995 |
| 13593 | Hybrid Operating, Incorporated | Carlsbad, CA 92009 | Oil & Gas Operator | May 2026 |
| 13594 | Hyco Oil Inc | Newcastle, WY 82701 | Oil & Gas Operator | Dec 2006 |
| 13595 | Hyde-Marrs, Inc. | Wichita, KS 67202 | Oil Operator | Aug 1997 |
| 13596 | Hyder, Dean L. | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 13597 | Hydroc Oil Company | Borger, TX 79007 | Oil & Gas Operator | May 2012 |
| 13598 | Hydrocarbon Exploration, Inc. | | Oil & Gas Operator | Dec 2008 |
| 13599 | Hydrocarbon Generation, Inc. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2024 |
| 13600 | Hydrocarbon Horizons, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jun 2023 |