| 2301 | Jandar Exploration, L. C. | Tyler, TX 75703 | Oil & Gas Operator | Jul 2025 |
| 2302 | Janex Oil Co., Inc. | Dallas, TX 75219 | Oil & Gas Operator | Jun 2005 |
| 2303 | Japex (U.S.) Corp. | | Oil & Gas Operator | May 1998 |
| 2304 | Jay Development Corp. | Dallas, TX 75420 | Oil & Gas Operator | Jun 1992 |
| 2305 | JB & K, L.L.C. | | Oil Operator | Jan 2025 |
| 2306 | JCB II Enterprises LLC | Perryton, TX 79070 | Oil & Gas Operator | Jun 2023 |
| 2307 | JD Oil Company | Longview, TX 75605 | Oil & Gas Operator | Sep 2014 |
| 2308 | Jeems Bayou Production Corp. | Oil City, LA 71061 | Oil & Gas Operator | Jul 2025 |
| 2309 | Jeff M. Hicks | | Oil & Gas Operator | May 1992 |
| 2310 | Jeffery Lynch Production | | Oil Operator | Jan 2025 |
| 2311 | Jem Petroleum Corporation | | Oil & Gas Operator | Jun 1983 |
| 2312 | Jen Oil & Gas | | Oil & Gas Operator | Feb 2006 |
| 2313 | Jen-Oil, Inc. | | Oil Operator | Aug 1999 |
| 2314 | Jenco Resources, Inc. | | Oil & Gas Operator | Aug 2009 |
| 2315 | Jenkins Oil & Gas, Inc. | | Oil & Gas Operator | Aug 1992 |
| 2316 | Jennings Holdings, LLC | | Oil & Gas Operator | Dec 2024 |
| 2317 | Jennings Oil Of VIvian LLC | | Oil Operator | Jan 2025 |
| 2318 | Jerry J. Tuma | | Oil & Gas Operator | Mar 1985 |
| 2319 | Jerry Malmay | | Oil Operator | Aug 2011 |
| 2320 | Jerry P Ogden | | Oil & Gas Operator | Dec 2008 |
| 2321 | Jerry R. Craig | | Oil & Gas Operator | Dec 2012 |
| 2322 | Jesse Franklin Rosett | | Oil & Gas Operator | Jan 1981 |
| 2323 | Jetta Operating Company Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 2324 | JFD,Inc | Houston, TX 77041-6914 | Oil & Gas Operator | Feb 2000 |
| 2325 | JGC Energy Development (USA) Inc. | | Oil & Gas Operator | Aug 2014 |
| 2326 | Jim Austin | | Oil & Gas Operator | Jul 1981 |
| 2327 | Jim Austin Et Al | | Gas Operator | Jul 1981 |
| 2328 | Jim Joel Elliott | | Oil Operator | Nov 1999 |
| 2329 | Jim V. Haddox | | Gas Operator | Dec 2010 |
| 2330 | Jim-Co Drilling Et Al | | Oil & Gas Operator | Mar 1991 |
| 2331 | Jimco Oil Company, Inc. | Electra, TX 76360 | Oil & Gas Operator | Jun 2019 |
| 2332 | Jimmy D Berry | | Gas Operator | Mar 1983 |
| 2333 | Jimmy P Dempsey | | Oil & Gas Operator | Jan 2025 |
| 2334 | Jimmy Roberson Energy Corp. | Texarkana, TX 75503 | Oil & Gas Operator | Sep 2012 |
| 2335 | JLM Sartor Inc | | Oil & Gas Operator | Jul 2016 |
| 2336 | JLS Investments | | Oil & Gas Operator | Mar 2002 |
| 2337 | JMR Oil, Inc. | | Oil & Gas Operator | Sep 2006 |
| 2338 | JN Expl & Prod LTD Partnership | Billings, MT 59103-0159 | Oil & Gas Operator | Feb 2001 |
| 2339 | Jo Dunn | | Oil Operator | May 2003 |
| 2340 | Joe G. Strahan | | Gas Operator | Oct 1983 |
| 2341 | Joe Lamar Oil, LLC | | Oil Operator | Jan 2025 |
| 2342 | Joe M. Burnham | | Oil Operator | May 1993 |
| 2343 | Joe Pugh | | Oil Operator | Aug 2001 |
| 2344 | Joe W. Burrage | | Oil Operator | Jun 1986 |
| 2345 | Joe W. Elsbury | | Oil & Gas Operator | Oct 1988 |
| 2346 | Joel B. Brown | | Oil & Gas Operator | Jan 1998 |
| 2347 | John B. Echols & Associates | | Oil Operator | Jun 1983 |
| 2348 | John C. Bowers | | Oil & Gas Operator | Dec 1987 |
| 2349 | John D Caruthers Jr Et Al | | Oil & Gas Operator | Aug 1981 |
| 2350 | John D. Caruthers, Jr. | | Oil & Gas Operator | Apr 1983 |
| 2351 | John D. Caruthers,Jr.-Copeland | | Oil & Gas Operator | Aug 1981 |
| 2352 | John Gillespie | | Oil Operator | Jun 1981 |
| 2353 | John H. McCarter, Jr. | | Gas Operator | Nov 1990 |
| 2354 | John J. Welsh | | Oil & Gas Operator | Dec 2024 |
| 2355 | John L. Copeland | | Oil & Gas Operator | Jun 1982 |
| 2356 | John O. Clay Exploration, Inc. | | Oil & Gas Operator | Apr 2005 |
| 2357 | John P. Castleman, Jr. | | Oil & Gas Operator | Nov 2020 |
| 2358 | John R Thompson Operating, Inc | | Oil & Gas Operator | Apr 1985 |
| 2359 | John S. Turner,Jr. | | Gas Operator | Jun 1982 |
| 2360 | John T. Martin, Jr. | | Oil Operator | Jun 1992 |
| 2361 | John T. Palmer | | Oil & Gas Operator | Jun 1982 |
| 2362 | John T. Weaver & Son | | Oil Operator | Jan 2025 |
| 2363 | John W. McDowell | | Oil & Gas Operator | Aug 1991 |
| 2364 | John W. McGowan | | Oil & Gas Operator | Jun 1991 |
| 2365 | John W. Mecom | | Oil & Gas Operator | Mar 1991 |
| 2366 | John W. Thomas | | Oil & Gas Operator | Jun 1993 |
| 2367 | John W. Thomas, Jr. | | Oil Operator | Jun 1993 |
| 2368 | Johnson & Johnson Operating, Inc. | | Oil & Gas Operator | Jan 2025 |
| 2369 | Johnson Oil & Gas Corporation | | Oil & Gas Operator | Feb 1994 |
| 2370 | Johnson'S Well Service | | Oil Operator | Jan 2004 |
| 2371 | Jolen Operating Co Of La. | | Oil & Gas Operator | Dec 1993 |
| 2372 | Jolen Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2025 |
| 2373 | Jones Company | | Oil & Gas Operator | Dec 1990 |
| 2374 | Jones Company, LTD. | Albany, TX 76430 | Oil & Gas Operator | May 1999 |
| 2375 | Jones Exploration Company | | Oil & Gas Operator | Jun 1985 |
| 2376 | Jones Oil Company | Ardmore, OK 73402-1389 | Oil & Gas Operator | Aug 2022 |
| 2377 | Jones Operating Company | Levelland, TX 79336 | Oil & Gas Operator | Oct 2000 |
| 2378 | Jones-O'Brien, Inc. | | Oil & Gas Operator | Feb 1982 |
| 2379 | Jordan Oil & Gas Company | Healdsburg, CA 95448-1919 | Oil & Gas Operator | Mar 1995 |
| 2380 | Jordan Oil Company, Inc. | Lake Charles, LA 70602 | Oil & Gas Operator | Dec 2019 |
| 2381 | Joseph C. Leckelt | | Oil Operator | Aug 1995 |
| 2382 | Joseph F. Fritz Operating Co. | | Oil & Gas Operator | Mar 1983 |
| 2383 | Josey Exploration, Inc. | | Oil & Gas Operator | Dec 1988 |
| 2384 | JPM Petroleum, Inc. | | Oil Operator | May 1986 |
| 2385 | JSB, LLC | | Oil & Gas Operator | Dec 2024 |
| 2386 | Julil Energy, LLC | Richmond, TX 77406 | Oil & Gas Operator | Dec 2024 |
| 2387 | June Energy Inc. | | Oil & Gas Operator | May 2000 |
| 2388 | Jurassic Exploration Co Inc. | | Oil & Gas Operator | Nov 1994 |
| 2389 | Justiss Oil Co., Inc.-Munoco Co. | | Oil & Gas Operator | Dec 2008 |
| 2390 | Justiss Oil Company, Inc. | Jena, LA 71342 | Oil & Gas Operator | Mar 2025 |
| 2391 | Justiss-Mears Oil Co. | | Oil & Gas Operator | Feb 1981 |
| 2392 | Justiss-Mears Oil Co., Et Al | | Oil & Gas Operator | Feb 1981 |
| 2393 | Justiss-Mears-D. Latimer | | Oil Operator | Mar 1979 |
| 2394 | Jva Operating Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2021 |
| 2395 | JWR Exploration Inc. | | Oil & Gas Operator | Jul 1989 |
| 2396 | JWR Oil And Gas | | Oil Operator | Nov 2024 |
| 2397 | JZJ Corporation | | Oil Operator | May 2010 |
| 2398 | K & G Production | | Oil Operator | Jan 2025 |
| 2399 | K & S Rentals | | Oil & Gas Operator | May 2013 |
| 2400 | K & W Oil Company | MT Carmel, IL 62830 | Oil & Gas Operator | May 2013 |