| 601 | Jerry Barnett & Son | Graham, TX 76450 | Oil Operator | Sep 2024 |
| 602 | Jerry Hess Operating Company | Muenster, TX 76252 | Oil Operator | Dec 2008 |
| 603 | Jerry J. Tuma | | Oil & Gas Operator | Mar 1985 |
| 604 | Jerry Malmay | | Oil Operator | Aug 2011 |
| 605 | Jerry Moore Inc | Hartville, OH 44632 | Oil & Gas Operator | Dec 2024 |
| 606 | Jerry Oil Co. | Riverside, IL 60546 | Oil & Gas Operator | Dec 1990 |
| 607 | Jerry P Ogden | | Oil & Gas Operator | Dec 2008 |
| 608 | Jerry Patterson Oil | | Oil Operator | May 2004 |
| 609 | Jerry R. Craig | | Oil & Gas Operator | Dec 2012 |
| 610 | Jerry Sanner Oil Properties Inc | Enid, OK 73701 | Oil & Gas Operator | May 2025 |
| 611 | Jerry Scott Drilling Company Inc | Ada, OK 74821 | Oil & Gas Operator | Apr 2025 |
| 612 | Jerry W Guy & Thurman F Duncan | Hobbs, NM 88241 | Oil & Gas Operator | May 2016 |
| 613 | Jesam Energy LLC | Glenville, WV 26351 | Oil & Gas Operator | Dec 2021 |
| 614 | Jesmar Energy Inc | Holbrook, PA 15341-1318 | Oil & Gas Operator | Dec 2024 |
| 615 | Jess Energy Company | Tyler, TX 75710 | Oil & Gas Operator | Sep 1997 |
| 616 | Jesse Franklin Rosett | | Oil & Gas Operator | Jan 1981 |
| 617 | Jesse Operating LLC | Konawa, OK 74849-4917 | Oil Operator | Apr 2025 |
| 618 | Jesse'S Oilfield Service | Okemah, OK 74859 | Oil & Gas Operator | Sep 2014 |
| 619 | Jesus Maria Corporation | San Antonio, TX 78216 | Oil Operator | Jul 2025 |
| 620 | Jeswood Productions, LLC | Denton, TX 76206 | Oil & Gas Operator | Jul 2025 |
| 621 | Jet Black Oil, Inc. | Katy, TX 77494 | Oil Operator | Jul 2025 |
| 622 | Jet Drilling Cor | | Oil Operator | Oct 1995 |
| 623 | Jet Drilling Corp. | Scottsdale, AZ 85252 | Oil & Gas Operator | Dec 1996 |
| 624 | Jet Exploration 1995-1 LLC | | Gas Operator | Jan 2000 |
| 625 | Jet Oil Co12/Ofb See 18649 | | Oil & Gas Operator | Jul 2007 |
| 626 | Jet Oil Corp | | Oil & Gas Operator | Feb 1999 |
| 627 | Jet Oil Producers | Coldspring, TX 77331 | Oil & Gas Operator | Mar 2008 |
| 628 | Jet Oil Producers, Inc. | Coldspring, TX 77331 | Oil & Gas Operator | Jul 2025 |
| 629 | Jet Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2002 |
| 630 | Jet-Star Co. | Gainesville, TX 76240 | Oil & Gas Operator | Jul 2025 |
| 631 | Jet-Tex Oil & Gas, LLC | Rockdale, TX 76567 | Oil Operator | Jul 2025 |
| 632 | Jetco Exploration | Victoria, TX 77903 | Oil & Gas Operator | May 2007 |
| 633 | Jeter Drilling Production | Del Rio, TX 78840 | Oil & Gas Operator | Jul 2025 |
| 634 | Jetgo Oil Compan | | Oil & Gas Operator | Jan 1995 |
| 635 | Jetson Operating Inc | Ada, OK 74820 | Oil & Gas Operator | Sep 2024 |
| 636 | Jett Drilling Co. | | Oil & Gas Operator | Feb 1984 |
| 637 | Jett Oil LLC | Warren, PA 16365-4366 | Oil & Gas Operator | Dec 2024 |
| 638 | Jetta Operating Appalachia, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2023 |
| 639 | Jetta Operating Company Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 640 | Jetta Permian, LP | Midland, TX 79701 | Oil & Gas Operator | Jun 2021 |
| 641 | Jettison, Inc. | | Oil & Gas Operator | Jun 2025 |
| 642 | Jew-Del Oil & Ga | | Gas Operator | Dec 1994 |
| 643 | Jewell Consulting Inc | Bixby, OK 74008 | Oil & Gas Operator | Dec 2022 |
| 644 | Jezek, Ernest D. | Holyrood, KS 67450 | Oil Operator | Dec 2019 |
| 645 | JF Trust | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 2024 |
| 646 | JFC Construction LLC | East Bernard, TX 77435 | Oil Operator | Jul 2025 |
| 647 | JFD,Inc | Houston, TX 77041-6914 | Oil & Gas Operator | Feb 2000 |
| 648 | JFW Incorporated | Plevna, KS 67568 | Oil & Gas Operator | Oct 2006 |
| 649 | JGC Energy Development (USA) Inc. | | Oil & Gas Operator | Aug 2014 |
| 650 | JGC Oil Co. | Austin, TX 78732 | Oil & Gas Operator | Jul 2025 |
| 651 | JGK Oil, Inc. | Chanute, KS 66720 | Oil Operator | Aug 1998 |
| 652 | Jhatco Inc | Enid, OK 73701 | Oil & Gas Operator | May 2025 |
| 653 | JHC II LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2024 |
| 654 | JHL Energy, Inc. | Wichita, KS 67209 | Oil & Gas Operator | Apr 2016 |
| 655 | JHP Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Jul 2025 |
| 656 | JHS Energy, Inc | Denver, CO 80222 | Oil & Gas Operator | Mar 2025 |
| 657 | JHS Oilfield Services LLC | Dallas, TX 75206 | Oil Operator | Jul 2025 |
| 658 | Ji Energy LLC | Midland, TX 79707 | Gas Operator | Jul 2025 |
| 659 | Jiahe Energy, LLC | Katy, TX 77450 | Gas Operator | Jul 2025 |
| 660 | Jicarilla Energy Co | Farmington, NM 87401 | Oil & Gas Operator | May 2025 |
| 661 | Jico Exploration Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Nov 2004 |
| 662 | Jil Oil Corp. | San Antonio, TX 78279 | Oil & Gas Operator | Jul 2025 |
| 663 | Jilpetco, Inc. | Fort Worth, TX 76121 | Oil & Gas Operator | Jul 2025 |
| 664 | Jim Austin | | Oil & Gas Operator | Jul 1981 |
| 665 | Jim Austin Et Al | | Gas Operator | Jul 1981 |
| 666 | Jim Bennett Oil Co Inc | | Oil & Gas Operator | Mar 2019 |
| 667 | Jim Clower Inc | Beaver, OK 73932 | Oil & Gas Operator | Apr 2025 |
| 668 | Jim Darnell Dba Jim Darnell Operating Co | Okmulgee, OK 74447-8988 | Oil & Gas Operator | Mar 2025 |
| 669 | Jim Graham | | Oil & Gas Operator | Jan 2018 |
| 670 | Jim Joel Elliott | | Oil Operator | Nov 1999 |
| 671 | Jim Murphy Buick GMC, Inc. | Depew, NY 14043 | Gas Operator | Dec 2024 |
| 672 | Jim Pierce | Artesia, NM 88210 | Oil & Gas Operator | Apr 2022 |
| 673 | Jim Production | Jacksboro, TX 76458 | Oil & Gas Operator | Jan 2010 |
| 674 | Jim Snyder, Inc. | Hamilton, KS 66853 | Oil Operator | Mar 2025 |
| 675 | Jim V. Haddox | | Gas Operator | Dec 2010 |
| 676 | Jim'S Operating Service | Dewey, OK 74029 | Oil Operator | Dec 1996 |
| 677 | Jim-Bob Oil Company | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2003 |
| 678 | Jim-Co Drilling Et Al | | Oil & Gas Operator | Mar 1991 |
| 679 | Jimco Energy Inc. | Stockdale, TX 78160 | Oil & Gas Operator | Jul 2025 |
| 680 | Jimco Oil Company, Inc. | Electra, TX 76360 | Oil & Gas Operator | Jun 2019 |
| 681 | Jimenez Well Service, LLC | Kingman, KS 67068 | Oil Operator | Jan 2016 |
| 682 | Jimerson, Joseph E. | Scio, NY 14880 | Oil Operator | Dec 2022 |
| 683 | Jimgas Inc | Magnolia, TX 77355 | Oil & Gas Operator | May 2016 |
| 684 | Jimmy D Berry | | Gas Operator | Mar 1983 |
| 685 | Jimmy P Dempsey | | Oil & Gas Operator | Jan 2025 |
| 686 | Jimmy R Chatham LLC | Healdton, OK 73438 | Oil & Gas Operator | May 2025 |
| 687 | Jimmy Roberson Energy Corp. | Texarkana, TX 75503 | Oil & Gas Operator | Sep 2012 |
| 688 | Jims Water Service Inc | Gillette, WY 82717 | Oil & Gas Operator | Oct 2016 |
| 689 | Jin Petroleum LLC | New Braunfels, TX 78130 | Oil Operator | Jul 2025 |
| 690 | Jip Rock, LLC | Shamrock, TX 79079 | Oil & Gas Operator | Jul 2025 |
| 691 | Jireh Resources LLC | Tulsa, OK 74170-1230 | Oil Operator | Apr 2025 |
| 692 | Jiro | Stinnett, TX 79083 | Oil & Gas Operator | Jul 2025 |
| 693 | JJ Bucher Producing Corp | Wellsville, NY 14895 | Oil & Gas Operator | Dec 2024 |
| 694 | JJ Leasing | Bartlesville, OK 74006 | Oil Operator | Feb 1989 |
| 695 | JJ Operations, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Jul 2025 |
| 696 | JJ Production | Freer, TX 78357 | Oil & Gas Operator | Jul 2025 |
| 697 | JJB Operating Co. | Mineral Wells, TX 76068 | Oil & Gas Operator | Jul 2025 |
| 698 | Jjes, Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 699 | JJH Energy Company | Odessa, TX 79765 | Gas Operator | Jul 2025 |
| 700 | JJH Prod. Co. | Roby, TX 79543 | Oil & Gas Operator | Jul 2025 |