| 5501 | J&R Operating | Holliday, TX 76366 | Oil & Gas Operator | Feb 2024 |
| 5502 | J-Bar Oil Company | Somerset, TX 78069 | Oil & Gas Operator | Nov 2011 |
| 5503 | J-Brex Company | Amarillo, TX 79101 | Oil & Gas Operator | Apr 2025 |
| 5504 | J-Car Operating, Inc. | Lindale, TX 75771 | Oil & Gas Operator | Mar 1997 |
| 5505 | J-E Production, Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2008 |
| 5506 | J-Energy | La Vernia, TX 78121 | Oil & Gas Operator | May 2017 |
| 5507 | J-Gar, Inc. | Amarillo, TX 79101 | Oil & Gas Operator | Jan 2003 |
| 5508 | J-Gar, LTD. | Amarillo, TX 79101 | Gas Operator | Dec 2019 |
| 5509 | J-Lyn Oil Co. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 5510 | J-O'B Op/Stone & Webster Co Inc. | Shreveport, LA 71135 | Oil & Gas Operator | Mar 1995 |
| 5511 | J-O'B Operating Company | Shreveport, LA 71135 | Oil & Gas Operator | Apr 2025 |
| 5512 | J-Square Ramsey JV1, LLC | Euless, TX 76039 | Oil Operator | Apr 2025 |
| 5513 | J-Tec Operating, LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2025 |
| 5514 | J-Tec Production, LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2025 |
| 5515 | J-W Operating Company | Christoval, TX 76935 | Oil & Gas Operator | Apr 2025 |
| 5516 | J. & M. Well Service, Inc. | Electra, TX 76360 | Oil & Gas Operator | Apr 2025 |
| 5517 | J. B. Oil Limited L. C. | Colorado SPGS, CO 80906 | Oil & Gas Operator | Apr 1995 |
| 5518 | J. C. Oil Company | Odessa, TX 79766 | Oil & Gas Operator | Mar 2015 |
| 5519 | J. C. Production | Borger, TX 79008 | Oil & Gas Operator | Apr 2025 |
| 5520 | J. D. Gas, Inc. | Stephenville, TX 76401 | Oil & Gas Operator | Apr 2025 |
| 5521 | J. F. G. Enterprises | Artesia, NM 88210 | Oil & Gas Operator | Apr 1995 |
| 5522 | J. K. J. Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 5523 | J. W. Resources Inc. | Amarillo, TX 79159 | Oil & Gas Operator | Apr 2025 |
| 5524 | J.A.G. Oil & Gas | La Vernia, TX 78121 | Oil & Gas Operator | Apr 2025 |
| 5525 | J.A.M. Production | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 5526 | J.B. Exploration | Cactus, TX 79013 | Oil & Gas Operator | Sep 1997 |
| 5527 | J.C. Operating | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2016 |
| 5528 | J.C.L. Production, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2025 |
| 5529 | J.F.G. Oil Co. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 5530 | J.F.S. Production Co., Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 1995 |
| 5531 | J.F.W. Equipment, Inc. | Centerville, TX 75833 | Oil & Gas Operator | Apr 2025 |
| 5532 | J.H. Oil, Inc. (A) | Tuscola, TX 79562 | Oil & Gas Operator | Dec 2004 |
| 5533 | J.H.R. Corporation | Bridgeville, PA 15017 | Oil & Gas Operator | Jul 2001 |
| 5534 | J.J. Energy Company | Richardson, TX 75081 | Oil & Gas Operator | Apr 2025 |
| 5535 | J.P. Oil Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 5536 | J.R. Oil And Gas Inc. | Alvin, TX 77511 | Oil & Gas Operator | Apr 2025 |
| 5537 | J.R. Oil Company | Houston, TX 77007 | Oil & Gas Operator | Jul 2019 |
| 5538 | J.S.B. Oil Company | Hallettsville, TX 77964 | Oil & Gas Operator | Apr 2025 |
| 5539 | J.T. Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Sep 2018 |
| 5540 | J.W. Service Company | Smithville, TX 78957 | Oil & Gas Operator | Apr 2025 |
| 5541 | J.W.S. | Talpa, TX 76882 | Oil & Gas Operator | Apr 2025 |
| 5542 | J2R Energy, LLC | Houston, TX 77084 | Oil Operator | Apr 2025 |
| 5543 | J3 Operating LLC | Spurger, TX 77660 | Oil & Gas Operator | Aug 2024 |
| 5544 | J6 Operating, LLC | Shiner, TX 77984 | Oil Operator | Mar 2009 |
| 5545 | Jab Operating, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2008 |
| 5546 | Jac Producing Co | Skellytown, TX 79080 | Gas Operator | May 2014 |
| 5547 | Jack Co | Indiana, PA 15701-0697 | Oil & Gas Operator | Dec 2013 |
| 5548 | Jack Oil Company | Baird, TX 79504 | Oil & Gas Operator | Feb 2025 |
| 5549 | Jack Operating | Rockdale, TX 76567 | Oil Operator | Apr 2025 |
| 5550 | Jack Russell Oil, LLC | Fairfield, TX 75840 | Oil & Gas Operator | Apr 2025 |
| 5551 | Jackson Bros. | Vernon, TX 76384 | Oil & Gas Operator | Jul 2016 |
| 5552 | Jackson Energy Development, Inc. | Cedar Park, TX 78613 | Oil & Gas Operator | Apr 2025 |
| 5553 | Jackson Investments | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 5554 | Jackson Oil | Powell, TX 75153 | Oil & Gas Operator | Apr 2025 |
| 5555 | Jackson Oil Company | Ranger, TX 76470 | Oil & Gas Operator | Sep 1998 |
| 5556 | Jackson Petroleum Consult Inc | Dallas, TX 75287 | Oil & Gas Operator | Aug 1994 |
| 5557 | Jackson Petroleum Consulting,Inc | Plano, TX 75075 | Oil & Gas Operator | Sep 2019 |
| 5558 | Jackson Production Co. | Rockdale, TX 76567 | Oil & Gas Operator | Mar 2008 |
| 5559 | Jackson, D. L., & Son | Jacksboro, TX 76458 | Oil & Gas Operator | May 2001 |
| 5560 | Jackson, Donald W. | Borger, TX 79008 | Oil & Gas Operator | Dec 2001 |
| 5561 | Jackson, Jeral W. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2004 |
| 5562 | Jackson, Neil A. | Snyder, TX 79549 | Oil & Gas Operator | Dec 1993 |
| 5563 | Jaco Oil & Gas | Borger, TX 79008 | Oil & Gas Operator | Apr 2025 |
| 5564 | Jaco Oil & Gas Co. | Dallas, TX 75206 | Oil & Gas Operator | Apr 1998 |
| 5565 | Jaco Production Company | Bakersfield, CA 93380 | Oil Operator | Dec 2024 |
| 5566 | Jaco, Troy Inc. | Sherman, TX 75091 | Oil & Gas Operator | Apr 2025 |
| 5567 | Jacobi-Johnson Energy, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 1998 |
| 5568 | Jacobs, C. E., Co. | Albany, TX 76430 | Oil & Gas Operator | Sep 2022 |
| 5569 | Jad Oil, Inc. | Hallettsville, TX 77964 | Oil & Gas Operator | Apr 2025 |
| 5570 | Jade Enterprises, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Apr 2025 |
| 5571 | Jag Operating, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2019 |
| 5572 | Jag Petroleum LLC | Houston, TX 77058 | Oil Operator | Nov 2009 |
| 5573 | Jagged Peak Energy LLC | Oklahoma City, OK 73126 | Oil & Gas Operator | Apr 2025 |
| 5574 | Jaid Energy, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 5575 | Jalapeno Corporation | Albuquerque, NM 87103 | Oil & Gas Operator | Dec 2023 |
| 5576 | Jalapeno Operating Company, LLC | Plntersville, TX 77363 | Oil Operator | Apr 2025 |
| 5577 | Jamco Oil | Somerset, TX 78069 | Oil Operator | Apr 2025 |
| 5578 | James Energy Corporation | Houston, TX 77227 | Oil & Gas Operator | Jan 1996 |
| 5579 | James Operating | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2025 |
| 5580 | James, Deryl | Nocona, TX 76255 | Oil & Gas Operator | Apr 2025 |
| 5581 | James, J. W. | Somerset, TX 78069 | Oil & Gas Operator | Aug 2004 |
| 5582 | Jamex II LTD., L.L.P. | Dallas, TX 75252 | Oil & Gas Operator | Sep 2002 |
| 5583 | Jamex, Inc. | Lewisville, TX 75067 | Oil & Gas Operator | Apr 2025 |
| 5584 | Jan Oil Company | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 5585 | Jandar Exploration | Henderson, TX 75653 | Oil & Gas Operator | Dec 1994 |
| 5586 | Jandar Exploration, L. C. | Tyler, TX 75703 | Oil & Gas Operator | Apr 2025 |
| 5587 | Janex Oil Co., Inc. | Dallas, TX 75219 | Oil & Gas Operator | Jun 2005 |
| 5588 | Janssen, Nelson | Victoria, TX 77904 | Oil & Gas Operator | Apr 2025 |
| 5589 | Janssen, Wayne Allen | Runge, TX 78151 | Oil & Gas Operator | May 2010 |
| 5590 | Jap Oil Corporation | Levelland, TX 79336 | Oil & Gas Operator | May 1994 |
| 5591 | Jaraco Energy | Cross Plains, TX 76443 | Oil & Gas Operator | Jun 2005 |
| 5592 | Jarutowicz Oil Company | Floresville, TX 78114 | Oil & Gas Operator | Apr 2025 |
| 5593 | Jasmar Oil Co. | Levelland, TX 79336 | Oil & Gas Operator | Mar 2008 |
| 5594 | Jasper Energy, Incorporated | Decatur, TX 76234 | Oil Operator | Apr 2025 |
| 5595 | Jasper Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Jun 2002 |
| 5596 | Jasper Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 1996 |
| 5597 | Jatam Inc. | Sterling City, TX 76951 | Oil & Gas Operator | Apr 2025 |
| 5598 | Jaten Oil Co. | Amarillo, TX 79105 | Oil & Gas Operator | Apr 1993 |
| 5599 | Javelin Energy Partners Management, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2025 |
| 5600 | Jaw Oil Co. | Amarillo, TX 79101 | Oil & Gas Operator | Jan 1997 |