| 2401 | Jim V. Haddox | | Gas Operator | Dec 2010 |
| 2402 | Jim-Co Drilling Et Al | | Oil & Gas Operator | Mar 1991 |
| 2403 | Jimco Oil Company, Inc. | Electra, TX 76360 | Oil & Gas Operator | Jun 2019 |
| 2404 | Jimmie G. Meador | | Oil & Gas Operator | Apr 1980 |
| 2405 | Jimmy D Berry | | Gas Operator | Mar 1983 |
| 2406 | Jimmy P Dempsey | | Oil & Gas Operator | Jan 2025 |
| 2407 | Jimmy Roberson Energy Corp. | Texarkana, TX 75503 | Oil & Gas Operator | Sep 2012 |
| 2408 | JJJ Partnership | | Gas Operator | Nov 1997 |
| 2409 | JLM Sartor Inc | | Oil & Gas Operator | Jul 2016 |
| 2410 | JLS Investments | | Oil & Gas Operator | Mar 2002 |
| 2411 | JMR Oil, Inc. | | Oil & Gas Operator | Sep 2006 |
| 2412 | JN Expl & Prod LTD Partnership | Billings, MT 59103-0159 | Oil & Gas Operator | Feb 2001 |
| 2413 | Jo Dunn | | Oil Operator | May 2003 |
| 2414 | Joe G. Strahan | | Gas Operator | Oct 1983 |
| 2415 | Joe Lamar Oil, LLC | | Oil Operator | Jan 2025 |
| 2416 | Joe M. Burnham | | Oil Operator | May 1993 |
| 2417 | Joe Mize Et Al | | Oil & Gas Operator | Dec 1986 |
| 2418 | Joe Pugh | | Oil Operator | Aug 2001 |
| 2419 | Joe W. Burrage | | Oil Operator | Jun 1986 |
| 2420 | Joe W. Elsbury | | Oil & Gas Operator | Oct 1988 |
| 2421 | Joel B. Brown | | Oil & Gas Operator | Jan 1998 |
| 2422 | John B. Echols & Associates | | Oil Operator | Jun 1983 |
| 2423 | John C. Bowers | | Oil & Gas Operator | Dec 1987 |
| 2424 | John D Caruthers Jr Et Al | | Oil & Gas Operator | Aug 1981 |
| 2425 | John D. Caruthers, Et Al | | Oil & Gas Operator | Jun 1983 |
| 2426 | John D. Caruthers, Jr. | | Oil & Gas Operator | Apr 1983 |
| 2427 | John D. Caruthers,Jr.-Copeland | | Oil & Gas Operator | Aug 1981 |
| 2428 | John Gillespie | | Oil Operator | Jun 1981 |
| 2429 | John H. McCarter, Jr. | | Gas Operator | Nov 1990 |
| 2430 | John J. Welsh | | Oil & Gas Operator | Dec 2024 |
| 2431 | John L. Copeland | | Oil & Gas Operator | Jun 1982 |
| 2432 | John O. Clay | | Gas Operator | May 1979 |
| 2433 | John O. Clay Exploration, Inc. | | Oil & Gas Operator | Apr 2005 |
| 2434 | John P. Castleman, Jr. | | Oil & Gas Operator | Nov 2020 |
| 2435 | John R Thompson Operating, Inc | | Oil & Gas Operator | Apr 1985 |
| 2436 | John S. Turner,Jr. | | Gas Operator | Jun 1982 |
| 2437 | John T. Martin, Jr. | | Oil Operator | Jun 1992 |
| 2438 | John T. Palmer | | Oil & Gas Operator | Jun 1982 |
| 2439 | John T. Weaver & Son | | Oil Operator | Jan 2025 |
| 2440 | John W. McDowell | | Oil & Gas Operator | Aug 1991 |
| 2441 | John W. McGowan | | Oil & Gas Operator | Jun 1991 |
| 2442 | John W. Mecom | | Oil & Gas Operator | Mar 1991 |
| 2443 | John W. Thomas | | Oil & Gas Operator | Jun 1993 |
| 2444 | John W. Thomas, Jr. | | Oil Operator | Jun 1993 |
| 2445 | Johnson & Johnson Operating, Inc. | | Oil & Gas Operator | Jan 2025 |
| 2446 | Johnson Oil & Gas Corporation | | Oil & Gas Operator | Feb 1994 |
| 2447 | Johnson'S Well Service | | Oil Operator | Jan 2004 |
| 2448 | Jolen Operating Co Of La. | | Oil & Gas Operator | Dec 1993 |
| 2449 | Jolen Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Nov 2025 |
| 2450 | Jones Company | | Oil & Gas Operator | Dec 1990 |
| 2451 | Jones Company, LTD. | Albany, TX 76430 | Oil & Gas Operator | May 1999 |
| 2452 | Jones Exploration Company | | Oil & Gas Operator | Jun 1985 |
| 2453 | Jones Oil Company | Ardmore, OK 73402-1389 | Oil & Gas Operator | Aug 2022 |
| 2454 | Jones Operating Company | Levelland, TX 79336 | Oil & Gas Operator | Oct 2000 |
| 2455 | Jones-O'Brien, Inc. | | Oil & Gas Operator | Feb 1982 |
| 2456 | Jordan Oil & Gas Company | Healdsburg, CA 95448-1919 | Oil & Gas Operator | Mar 1995 |
| 2457 | Jordan Oil Company, Inc. | Lake Charles, LA 70602 | Oil & Gas Operator | Dec 2019 |
| 2458 | Joseph C. Leckelt | | Oil Operator | Aug 1995 |
| 2459 | Joseph F. Fritz Operating Co. | | Oil & Gas Operator | Mar 1983 |
| 2460 | Josey Exploration, Inc. | | Oil & Gas Operator | Dec 1988 |
| 2461 | JPM Petroleum, Inc. | | Oil Operator | May 1986 |
| 2462 | JSB, LLC | | Oil & Gas Operator | Dec 2024 |
| 2463 | JSK Resources, Inc. | | Oil & Gas Operator | Dec 1999 |
| 2464 | Julil Energy, LLC | Richmond, TX 77406 | Oil & Gas Operator | Dec 2024 |
| 2465 | June Energy Inc. | | Oil & Gas Operator | May 2000 |
| 2466 | Jurassic Exploration Co Inc. | | Oil & Gas Operator | Nov 1994 |
| 2467 | Justiss Oil Co Inc-Munoco Co | | Oil & Gas Operator | Dec 2008 |
| 2468 | Justiss Oil Company, Inc. | Jena, LA 71342 | Oil & Gas Operator | Nov 2025 |
| 2469 | Justiss-Mears Oil Co. | | Oil & Gas Operator | Feb 1981 |
| 2470 | Justiss-Mears Oil Co., Et Al | | Oil & Gas Operator | Feb 1981 |
| 2471 | Justiss-Mears-D. Latimer | | Oil Operator | Mar 1979 |
| 2472 | JWR Exploration Inc. | | Oil & Gas Operator | Jul 1989 |
| 2473 | JWR Oil And Gas | | Oil Operator | Nov 2024 |
| 2474 | JZJ Corporation | | Oil Operator | May 2010 |
| 2475 | K & G Production | | Oil Operator | Jan 2025 |
| 2476 | K & S Rentals | | Oil & Gas Operator | May 2013 |
| 2477 | K & W Oil Company | MT Carmel, IL 62830 | Oil & Gas Operator | May 2013 |
| 2478 | K R S Expl., Inc. | | Oil Operator | Oct 2020 |
| 2479 | K Wilson Enterprises Inc. | | Oil Operator | Jan 2025 |
| 2480 | K-B Exploration Co. | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 2481 | K. D. Lankford, Jr & L&N DRLG Co | | Gas Operator | Dec 2010 |
| 2482 | K. D. Lankford, Jr., Et Al | | Gas Operator | Dec 2010 |
| 2483 | K.M.A. Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 2484 | Kabco Oil & Gas Company | Longview, TX 75604 | Oil & Gas Operator | Jun 2018 |
| 2485 | Kabco Production | | Oil & Gas Operator | Sep 1999 |
| 2486 | Kabco-Pennington | | Oil & Gas Operator | Oct 1996 |
| 2487 | Kadane Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 1998 |
| 2488 | Kaiser Aluminum Exploration Co | | Oil & Gas Operator | Dec 1986 |
| 2489 | Kaiser Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 1990 |
| 2490 | Kaiser Oil (U.S.) LTD. | | Oil & Gas Operator | Apr 1983 |
| 2491 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Feb 2026 |
| 2492 | Kalda Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 1994 |
| 2493 | Kaler Energy Corp. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2026 |
| 2494 | Kamlok, Inc. | | Oil Operator | Nov 1991 |
| 2495 | Kanan Oil & Gas, Inc. | | Oil & Gas Operator | Oct 1987 |
| 2496 | Kaneb Energy Company | | Oil & Gas Operator | Jan 1986 |
| 2497 | Kaneb Oil & Gas Company | | Oil & Gas Operator | Nov 1985 |
| 2498 | Kaneb Operg Co. LTD. PTN. | | Oil & Gas Operator | Aug 1988 |
| 2499 | Kanpetro, Inc. | | Oil Operator | May 1991 |
| 2500 | Kansas Oil & Gas Corporation | Woodland HLS, CA 91367 | Oil & Gas Operator | Feb 2001 |