| 22501 | Petrie, Stanley D. | Pratt, KS 67124 | Gas Operator | Aug 1995 |
| 22502 | Petrik Oil | Bartlesville, OK 74006 | Oil Operator | Nov 1996 |
| 22503 | Petrik Oil - Jim | | Oil Operator | Apr 1995 |
| 22504 | Petro "E", LLC | | Oil & Gas Operator | Feb 2010 |
| 22505 | Petro 2000 Exploration Co. | Katy, TX 77450 | Oil & Gas Operator | Nov 2011 |
| 22506 | Petro 85 Incorpo | | Oil Operator | Mar 1993 |
| 22507 | Petro Capital Resources LLC | | Oil & Gas Operator | Feb 2025 |
| 22508 | Petro Davis Inc | Oklahoma City, OK 73142-1807 | Oil & Gas Operator | Jan 2013 |
| 22509 | Petro Delta | Rockdale, TX 76567 | Oil Operator | May 2025 |
| 22510 | Petro Dev Corp | Bridgeport, WV 26330-0026 | Oil & Gas Operator | Dec 2013 |
| 22511 | Petro Drilling & Producing Co. | Archer City, TX 76351 | Oil & Gas Operator | Apr 1997 |
| 22512 | Petro Drilling Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1993 |
| 22513 | Petro Dynamics C | | Oil & Gas Operator | Sep 1988 |
| 22514 | Petro Energies I | | Oil & Gas Operator | Apr 1991 |
| 22515 | Petro Energy Inc | Farmington, NM 87499 | Oil & Gas Operator | Mar 2025 |
| 22516 | Petro Evaluation Services Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 22517 | Petro Evaluation SVC Inc | Wooster, OH 44691-1223 | Oil & Gas Operator | Dec 2008 |
| 22518 | Petro Harvester Operating Company, LLC | | Oil & Gas Operator | Nov 2022 |
| 22519 | Petro Hi-Tech, Inc. | Pasadena, TX 77505 | Oil & Gas Operator | Feb 2008 |
| 22520 | Petro Holdings, Inc. | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2021 |
| 22521 | Petro Hunt Inc Of Kentucky | | Oil & Gas Operator | Dec 2006 |
| 22522 | Petro Lions, LLC | Somerset, TX 78069 | Oil Operator | May 2025 |
| 22523 | Petro Locators I | | Oil & Gas Operator | Dec 1995 |
| 22524 | Petro Locators, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Jan 2025 |
| 22525 | Petro Mex Resources | | Oil & Gas Operator | Mar 2025 |
| 22526 | Petro Mex, LLC | Farmington, NM 87499 | Oil & Gas Operator | Apr 2025 |
| 22527 | Petro North LTD | Smethport, PA 16749-0742 | Oil & Gas Operator | Dec 2024 |
| 22528 | Petro Nova | | Oil Operator | Dec 2000 |
| 22529 | Petro Oil Produc | | Oil Operator | Aug 1989 |
| 22530 | Petro Oilfield Equipment Inc | Drumright, OK 74030-1233 | Oil & Gas Operator | Dec 2010 |
| 22531 | Petro Operating Company | | Oil & Gas Operator | Dec 2024 |
| 22532 | Petro Operating Company LLC | | Oil & Gas Operator | Mar 2025 |
| 22533 | Petro Pak Corpor | | Oil Operator | Aug 1988 |
| 22534 | Petro Plex Oil Co Inc. | Homosassa, FL 34448 | Oil & Gas Operator | Jul 2020 |
| 22535 | Petro Producers Corporation | | Oil & Gas Operator | Mar 1993 |
| 22536 | Petro Productions,Petrotec Production,Inc Dba | Wichita, KS 67202 | Oil Operator | Aug 1993 |
| 22537 | Petro Quest Inc | Guysville, OH 45735 | Oil & Gas Operator | Dec 2024 |
| 22538 | Petro Resources, Inc. | Fulton, TX 78358 | Oil & Gas Operator | May 2025 |
| 22539 | Petro River Operating, LLC | New York City, NY 10017 | Oil & Gas Operator | Jul 2011 |
| 22540 | Petro Search Exploration Corp | | Oil & Gas Operator | May 1993 |
| 22541 | Petro Speed Inc | Norman, OK 73069-8116 | Oil & Gas Operator | Mar 2015 |
| 22542 | Petro SVC Partners Inc | Indiana, PA 15701-8556 | Oil & Gas Operator | Dec 2024 |
| 22543 | Petro Valley Ser | | Gas Operator | Dec 1986 |
| 22544 | Petro Ventures Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2019 |
| 22545 | Petro Vest Operating LLC | | Oil Operator | Aug 2013 |
| 22546 | Petro Vest, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 2014 |
| 22547 | Petro Warrior LLC | Wichita, KS 67206 | Oil & Gas Operator | Feb 2025 |
| 22548 | Petro-Assets Corporation | | Oil & Gas Operator | Feb 2000 |
| 22549 | Petro-Beth Oil & Gas, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2006 |
| 22550 | Petro-Canada Resources (USA) | | Oil & Gas Operator | Dec 2009 |
| 22551 | Petro-Canada Resources (USA) Inc | Denver, CO 80202-472 | Oil & Gas Operator | Feb 2010 |
| 22552 | Petro-Chase Energy Corp | Oklahoma City, OK 73135-6205 | Oil & Gas Operator | Jan 2007 |
| 22553 | Petro-Chem Operating Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | May 2025 |
| 22554 | Petro-Flow, Inc | | Gas Operator | Dec 2023 |
| 22555 | Petro-Go, Inc. | | Oil & Gas Operator | Mar 1996 |
| 22556 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
| 22557 | Petro-Guard Production,L.L.C. | Houston, TX 77063 | Oil & Gas Operator | Dec 2024 |
| 22558 | Petro-Haley | Borger, TX 79008 | Oil & Gas Operator | May 2025 |
| 22559 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 22560 | Petro-Hunt Dakota, LLC | | Oil & Gas Operator | Mar 2025 |
| 22561 | Petro-Hunt Permian, LLC | Dallas, TX 75201 | Oil & Gas Operator | May 2025 |
| 22562 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | May 2025 |
| 22563 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 22564 | Petro-Lud Inc. | | Oil & Gas Operator | Mar 2025 |
| 22565 | Petro-Mac Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2025 |
| 22566 | Petro-Management Assoc., Inc. | Edmond, OK 73083-2346 | Oil & Gas Operator | Jun 2007 |
| 22567 | Petro-Management Inc | | Oil Operator | Dec 1998 |
| 22568 | Petro-Mark, Inc. | St Petersburg, FL 33701 | Oil & Gas Operator | Dec 2021 |
| 22569 | Petro-Met Energy LLC | Edmond, OK 73034-1237 | Oil Operator | Feb 2025 |
| 22570 | Petro-Raider LLC | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 22571 | Petro-Smith Operating LLC | Houston, TX 77010 | Oil & Gas Operator | May 2025 |
| 22572 | Petro-Technology | | Oil & Gas Operator | Aug 1991 |
| 22573 | Petro-Technology, Inc. | Topeka, KS 66604 | Gas Operator | Dec 1997 |
| 22574 | Petro-Tex Energy & Expl.Co.,Inc. | Llano, TX 78643 | Oil & Gas Operator | May 2025 |
| 22575 | Petro-Ventures, Inc. - Miss. | | Oil & Gas Operator | Apr 2009 |
| 22576 | Petro-West Corporation | Lubbock, TX 79404 | Oil & Gas Operator | Oct 2001 |
| 22577 | Petro-X Corporation | Houston, TX 77092 | Oil & Gas Operator | Jul 2002 |
| 22578 | Petrobal Omega 1, LLC | Little Elm, TX 75068 | Oil & Gas Operator | May 2025 |
| 22579 | Petrobank Opr Co | Denver, CO 80202-4675 | Gas Operator | Dec 1992 |
| 22580 | Petrocan, Inc. | | Oil & Gas Operator | Apr 1998 |
| 22581 | Petrocana,Inc. | | Oil & Gas Operator | Aug 1993 |
| 22582 | Petrocarbon Energy Corporation | | Oil Operator | Sep 1996 |
| 22583 | Petrocarbon Energy Trust | | Oil Operator | Sep 1996 |
| 22584 | Petrocat Innovations, LLC | Forney, TX 75126 | Oil Operator | May 2025 |
| 22585 | Petrocoastal, Inc. | Frisco, TX 75036 | Oil & Gas Operator | May 2025 |
| 22586 | Petrocon Inc | Delaware, OH 43015-7147-7147 | Oil & Gas Operator | Dec 2010 |
| 22587 | Petrocorp | | Oil & Gas Operator | Nov 1992 |
| 22588 | Petrocorp Acquisition Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2002 |
| 22589 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 22590 | Petrocorp Incorporated,A TX.Corp | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2005 |
| 22591 | Petroda Oil & Gas LLC | Edmond, OK 73054 | Oil & Gas Operator | Feb 2023 |
| 22592 | Petrodata Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 22593 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | Jan 2025 |
| 22594 | Petrodril Inc | Farmington, NM 87401 | Oil & Gas Operator | Jan 1987 |
| 22595 | Petrodudes | Crescent, OK 73028-8706 | Oil & Gas Operator | Aug 2024 |
| 22596 | Petroel | Marietta, OH 45750 | Oil & Gas Operator | Dec 2000 |
| 22597 | Petroflow Energy Corporation | Tulsa, OK 74119-5405 | Oil & Gas Operator | Oct 2016 |
| 22598 | Petrofunds, Inc & Sunny South | | Oil & Gas Operator | Feb 1984 |
| 22599 | Petrofunds, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jun 1996 |
| 22600 | Petrofunds, Inc. & Herd | | Oil & Gas Operator | Mar 1984 |