| 14501 | J.R. Oil Company | Houston, TX 77007 | Oil & Gas Operator | Jul 2019 |
| 14502 | J.R. Oil Productions | | Oil Operator | Jul 2019 |
| 14503 | J.R. Vann | | Oil & Gas Operator | Dec 1979 |
| 14504 | J.R.W. Oil & Gas | | Gas Operator | Sep 2021 |
| 14505 | J.S. & S. Production, L.L.C. | | Oil Operator | Apr 2021 |
| 14506 | J.S.B. Oil Company | Hallettsville, TX 77964 | Oil & Gas Operator | May 2025 |
| 14507 | J.T. Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Sep 2018 |
| 14508 | J.W. Briggs & W.B. Briggs | | Oil Operator | Jul 1994 |
| 14509 | J.W. Service Company | Smithville, TX 78957 | Oil & Gas Operator | May 2025 |
| 14510 | J.W.S. | Talpa, TX 76882 | Oil & Gas Operator | May 2025 |
| 14511 | J2R Energy, LLC | Houston, TX 77084 | Oil Operator | May 2025 |
| 14512 | J3 Energy | Purcell, OK 73080 | Oil & Gas Operator | Sep 2003 |
| 14513 | J3 Energy LLC | Ada, OK 74820 | Oil Operator | Jan 2025 |
| 14514 | J3 Operating LLC | Spurger, TX 77660 | Oil & Gas Operator | Aug 2024 |
| 14515 | J6 Operating, LLC | Shiner, TX 77984 | Oil Operator | Mar 2009 |
| 14516 | Jab Enterprises Inc | Erie, PA 16510-2181 | Gas Operator | Dec 2009 |
| 14517 | Jab Operating, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2008 |
| 14518 | Jabsco Oil Operating, LLC | Tuscaloosa, AL 35401 | Oil & Gas Operator | Feb 2025 |
| 14519 | Jac Producing Co | Skellytown, TX 79080 | Gas Operator | May 2014 |
| 14520 | Jac-Mac Energy Corporation | Oklahoma City, OK 73170 | Oil & Gas Operator | Mar 2025 |
| 14521 | Jacat Oil Co. | | Oil Operator | Dec 1990 |
| 14522 | Jack A Cole | Farmington, NM 874990191 | Oil & Gas Operator | Mar 1995 |
| 14523 | Jack Co | Indiana, PA 15701-0697 | Oil & Gas Operator | Dec 2013 |
| 14524 | Jack Corman | | Oil & Gas Operator | Jul 1981 |
| 14525 | Jack D Knox | Dallas, TX 75219 | Oil Operator | Jun 2024 |
| 14526 | Jack E. Stack, Jr. | | Oil & Gas Operator | Aug 1996 |
| 14527 | Jack Exploration, Inc. | Sulphur, OK 73086 | Oil & Gas Operator | Oct 2017 |
| 14528 | Jack Huff | Midland, TX 79705 | Oil & Gas Operator | Mar 2025 |
| 14529 | Jack J. Grynberg | Denver, CO 80202 | Oil & Gas Operator | Oct 2019 |
| 14530 | Jack L. Phillips | | Oil & Gas Operator | Aug 1994 |
| 14531 | Jack L. Phillips Co. | Gladewater, TX 756471686 | Oil & Gas Operator | Nov 2024 |
| 14532 | Jack Latham Co. | | Oil & Gas Operator | Jun 2018 |
| 14533 | Jack Markham | Lubbock, TX 79401 | Oil & Gas Operator | Dec 2015 |
| 14534 | Jack Moran Oil Co | Martinsburg, OH 43037 | Oil & Gas Operator | Dec 2009 |
| 14535 | Jack Oil Company | Baird, TX 79504 | Oil & Gas Operator | Mar 2025 |
| 14536 | Jack Operating | Rockdale, TX 76567 | Oil Operator | May 2025 |
| 14537 | Jack Production Inc | Indiana, PA 15701-0697 | Oil & Gas Operator | Dec 2011 |
| 14538 | Jack Russell Oil, LLC | Fairfield, TX 75840 | Oil & Gas Operator | May 2025 |
| 14539 | Jack Showacre | | Oil Operator | Jun 2002 |
| 14540 | Jack T. Everett | | Oil & Gas Operator | Jan 2006 |
| 14541 | Jack Taunton Energy | | Oil Operator | May 2002 |
| 14542 | Jack Todd-Despot Expl., Inc. | | Oil & Gas Operator | Apr 1985 |
| 14543 | Jack W Sanders & Son, General Partnership | Wellsville, KS 66092 | Oil Operator | Dec 2024 |
| 14544 | Jack W. Grigsby | | Oil & Gas Operator | Sep 2001 |
| 14545 | Jackass Flats Oil & Gas Co | Edmond, OK 73013 | Gas Operator | Jan 2015 |
| 14546 | Jackie D Nelson | | Oil & Gas Operator | Sep 1983 |
| 14547 | Jackknife Oil | Longton, KS 67352 | Oil Operator | Apr 1989 |
| 14548 | Jackman & Jackma | | Oil Operator | Jan 1986 |
| 14549 | Jacks Creek Oil & Gas-W T Lindsey, Agent | Pikeville, KY 41501 | Gas Operator | Dec 2023 |
| 14550 | Jackson & Richardson, Inc | Lafollette, TN 37766 | Gas Operator | Dec 2023 |
| 14551 | Jackson Bros. | Vernon, TX 76384 | Oil & Gas Operator | Jul 2016 |
| 14552 | Jackson Brothers | | Oil Operator | Dec 1996 |
| 14553 | Jackson Brothers, L.L.C. | Eureka, KS 67045 | Oil Operator | Jan 2025 |
| 14554 | Jackson Donald W Trust | Blue Eye, MO 65611-7293 | Gas Operator | Aug 2015 |
| 14555 | Jackson Dorwin R | | Oil Operator | Sep 1995 |
| 14556 | Jackson Emma Trust | Duncan, OK 73534-1388 | Oil & Gas Operator | Oct 2016 |
| 14557 | Jackson Energy Development, Inc. | Cedar Park, TX 78613 | Oil & Gas Operator | May 2025 |
| 14558 | Jackson Fuel Corporation | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 14559 | Jackson Investments | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 14560 | Jackson J M | Oklahoma City, OK 73101 | Oil & Gas Operator | Apr 2005 |
| 14561 | Jackson John J | | Oil Operator | Nov 1993 |
| 14562 | Jackson L B Production Co | Tulsa, OK 74193-0001 | Oil & Gas Operator | Aug 2013 |
| 14563 | Jackson Oil | Powell, TX 75153 | Oil & Gas Operator | May 2025 |
| 14564 | Jackson Oil Company | Ranger, TX 76470 | Oil & Gas Operator | Sep 1998 |
| 14565 | Jackson Oilfield Service Inc | Purcell, OK 73080-4357 | Oil & Gas Operator | Jan 2021 |
| 14566 | Jackson Petroleum Co., Inc. | | Oil & Gas Operator | Feb 2010 |
| 14567 | Jackson Petroleum Consult Inc | Dallas, TX 75287 | Oil & Gas Operator | Aug 1994 |
| 14568 | Jackson Petroleum Consulting,Inc | Plano, TX 75075 | Oil & Gas Operator | Sep 2019 |
| 14569 | Jackson Production Co. | Rockdale, TX 76567 | Oil & Gas Operator | Mar 2008 |
| 14570 | Jackson Resources Co | | Oil & Gas Operator | Dec 2018 |
| 14571 | Jackson Well Service | | Oil Operator | Apr 2001 |
| 14572 | Jackson, Brian & Janet | Elsmore, KS 66732 | Oil Operator | Jun 2024 |
| 14573 | Jackson, D. L., & Son | Jacksboro, TX 76458 | Oil & Gas Operator | May 2001 |
| 14574 | Jackson, Donald W. | Borger, TX 79008 | Oil & Gas Operator | Dec 2001 |
| 14575 | Jackson, Ethan | Mapleton, KS 66754 | Oil Operator | Dec 2024 |
| 14576 | Jackson, Howard Dba Jackson Enterprises | Williamsburg, KY 40769 | Oil & Gas Operator | Dec 2023 |
| 14577 | Jackson, Jeral W. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2004 |
| 14578 | Jackson, Joshua And Reacreisha | Mapleton, KS 66754 | Oil Operator | Oct 2024 |
| 14579 | Jackson, Levi | Mound City, KS 66056 | Oil Operator | Jan 2025 |
| 14580 | Jackson, Michael, Jackson Cheryl, Wallace, Thomas | Wellsville, NY 14895 | Oil & Gas Operator | Dec 2023 |
| 14581 | Jackson, Neil A. | Snyder, TX 79549 | Oil & Gas Operator | Dec 1993 |
| 14582 | Jackson, Norville W & Charlotte L | | Oil & Gas Operator | Dec 2010 |
| 14583 | Jacky G. Rivers | | Oil & Gas Operator | Jan 2025 |
| 14584 | Jaco Energy Company Inc | Stigler, OK 74462 | Gas Operator | Feb 2025 |
| 14585 | Jaco Oil & Gas | Borger, TX 79008 | Oil & Gas Operator | May 2025 |
| 14586 | Jaco Oil & Gas Co. | Dallas, TX 75206 | Oil & Gas Operator | Apr 1998 |
| 14587 | Jaco Production Company | Bakersfield, CA 93380 | Oil Operator | Feb 2025 |
| 14588 | Jaco, Troy Inc. | Sherman, TX 75091 | Oil & Gas Operator | May 2025 |
| 14589 | Jacobi-Johnson Energy, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 1998 |
| 14590 | Jacobs Fred T | | Oil Operator | Apr 1991 |
| 14591 | Jacobs Jean | Hurdle Mills, NC 27541 | Oil & Gas Operator | May 2013 |
| 14592 | Jacobs, C. E., Co. | Albany, TX 76430 | Oil & Gas Operator | Sep 2022 |
| 14593 | Jacobs, Gary D. | Medicine Lodge, KS 67104 | Oil & Gas Operator | Dec 2016 |
| 14594 | Jacobs, R L Oil & Gas Co | Grand Junction, CO 81503 | Oil & Gas Operator | Oct 1986 |
| 14595 | Jacobsen Michael | | Oil Operator | Dec 1996 |
| 14596 | Jacobus, R H | | Oil Operator | Dec 2023 |
| 14597 | Jad Oil, Inc. | Hallettsville, TX 77964 | Oil & Gas Operator | May 2025 |
| 14598 | Jad Petroleum Corporation | Colorado Springs, CO 80906 | Oil & Gas Operator | Aug 1998 |
| 14599 | Jada Inc. | | Oil & Gas Operator | Jul 2013 |
| 14600 | Jadath | | Oil Operator | May 2001 |