| 22501 | Peters Walter J | | Oil & Gas Operator | Jul 1991 |
| 22502 | Petersen Production Company LLC | | Oil & Gas Operator | Dec 2019 |
| 22503 | Peterson & Roberts | Loving, TX 76460 | Oil & Gas Operator | Mar 1998 |
| 22504 | Peterson Energy Management Inc | | Oil Operator | Aug 2010 |
| 22505 | Peterson Energy Operating Inc | Loveland, CO 80537 | Oil & Gas Operator | Oct 2025 |
| 22506 | Peterson Oil And Gas LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | Dec 2025 |
| 22507 | Peterson Oil Co LLC | Centerville, KS 66014 | Oil Operator | Jun 2025 |
| 22508 | Peterson, Don Company | Loving, TX 76460 | Oil & Gas Operator | Jul 2017 |
| 22509 | Peterson, Thomas M. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2024 |
| 22510 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2025 |
| 22511 | Petex Incorporat | | Oil Operator | Sep 1991 |
| 22512 | Petr Corporation | | Oil Operator | Apr 1988 |
| 22513 | Petr Exploration | | Oil Operator | Apr 1995 |
| 22514 | Petra Oleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 22515 | Petra Petroleum Inc | Littleton, CO 80160-0319 | Oil & Gas Operator | Jun 2005 |
| 22516 | Petra Petroleum Management LLC | Hotchkiss, CO 81419-0369 | Gas Operator | Sep 2014 |
| 22517 | Petra, Inc. | | Oil & Gas Operator | Apr 1987 |
| 22518 | Petral Exploration Inc LLC | Denver, CO 80217 | Oil & Gas Operator | May 2007 |
| 22519 | Petral Exploration LLC | Denver, CO 80217-5083 | Oil & Gas Operator | Dec 2001 |
| 22520 | Petralis Energy Resources, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2025 |
| 22521 | Petram Oil And Gas, LLC | Richmond, TX 77407 | Oil Operator | Dec 2025 |
| 22522 | Petrie Enterpris | | Oil & Gas Operator | Sep 1986 |
| 22523 | Petrie, Stanley D. | Pratt, KS 67124 | Gas Operator | Aug 1995 |
| 22524 | Petrik Oil | Bartlesville, OK 74006 | Oil Operator | Nov 1996 |
| 22525 | Petrik Oil - Jim | | Oil Operator | Apr 1995 |
| 22526 | Petro "E", LLC | | Oil & Gas Operator | Feb 2010 |
| 22527 | Petro 2000 Exploration Co. | Katy, TX 77450 | Oil & Gas Operator | Nov 2011 |
| 22528 | Petro 85 Incorpo | | Oil Operator | Mar 1993 |
| 22529 | Petro Capital Resources LLC | | Oil & Gas Operator | Sep 2025 |
| 22530 | Petro Davis Inc | Oklahoma City, OK 73142-1807 | Oil & Gas Operator | Jan 2013 |
| 22531 | Petro Delta | Rockdale, TX 76567 | Oil Operator | Dec 2025 |
| 22532 | Petro Dev Corp | Bridgeport, WV 26330-0026 | Oil & Gas Operator | Dec 2013 |
| 22533 | Petro Drilling & Producing Co. | Archer City, TX 76351 | Oil & Gas Operator | Apr 1997 |
| 22534 | Petro Drilling Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1993 |
| 22535 | Petro Dynamics C | | Oil & Gas Operator | Sep 1988 |
| 22536 | Petro Energies I | | Oil & Gas Operator | Apr 1991 |
| 22537 | Petro Energy Inc | Farmington, NM 87499 | Oil & Gas Operator | Sep 2025 |
| 22538 | Petro Evaluation Services Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 22539 | Petro Evaluation SVC Inc | Wooster, OH 44691-1223 | Oil & Gas Operator | Dec 2008 |
| 22540 | Petro Harvester Operating Company, LLC | | Oil & Gas Operator | Nov 2022 |
| 22541 | Petro Hi-Tech, Inc. | Pasadena, TX 77505 | Oil & Gas Operator | Feb 2008 |
| 22542 | Petro Holdings, Inc. | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2021 |
| 22543 | Petro Hunt Inc Of Kentucky | | Oil & Gas Operator | Dec 2006 |
| 22544 | Petro Lions, LLC | Somerset, TX 78069 | Oil Operator | Dec 2025 |
| 22545 | Petro Locators I | | Oil & Gas Operator | Dec 1995 |
| 22546 | Petro Locators, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Jun 2025 |
| 22547 | Petro Mex Resources | | Oil & Gas Operator | Aug 2025 |
| 22548 | Petro Mex, LLC | Farmington, NM 87499 | Oil & Gas Operator | Oct 2025 |
| 22549 | Petro North LTD | Smethport, PA 16749-0742 | Oil & Gas Operator | Dec 2024 |
| 22550 | Petro Nova | | Oil Operator | Dec 2000 |
| 22551 | Petro Oil Produc | | Oil Operator | Aug 1989 |
| 22552 | Petro Oilfield Equipment Inc | Drumright, OK 74030-1233 | Oil & Gas Operator | Dec 2010 |
| 22553 | Petro Operating Company | | Oil & Gas Operator | Dec 2024 |
| 22554 | Petro Operating Company LLC | | Oil & Gas Operator | Sep 2025 |
| 22555 | Petro Pak Corpor | | Oil Operator | Aug 1988 |
| 22556 | Petro Plex Oil Co Inc. | Homosassa, FL 34448 | Oil & Gas Operator | Jul 2020 |
| 22557 | Petro Producers Corporation | | Oil & Gas Operator | Mar 1993 |
| 22558 | Petro Productions,Petrotec Production,Inc Dba | Wichita, KS 67202 | Oil Operator | Aug 1993 |
| 22559 | Petro Quest Inc | Guysville, OH 45735 | Oil & Gas Operator | Dec 2024 |
| 22560 | Petro Resources, Inc. | Fulton, TX 78358 | Oil & Gas Operator | Dec 2025 |
| 22561 | Petro River Operating, LLC | New York City, NY 10017 | Oil & Gas Operator | Jul 2011 |
| 22562 | Petro Search Exploration Corp | | Oil & Gas Operator | May 1993 |
| 22563 | Petro Speed Inc | Norman, OK 73069-8116 | Oil & Gas Operator | Mar 2015 |
| 22564 | Petro SVC Partners Inc | Indiana, PA 15701-8556 | Oil & Gas Operator | Dec 2024 |
| 22565 | Petro Valley Ser | | Gas Operator | Dec 1986 |
| 22566 | Petro Ventures Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2019 |
| 22567 | Petro Vest Operating LLC | | Oil Operator | Aug 2013 |
| 22568 | Petro Vest, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 2014 |
| 22569 | Petro Warrior LLC | Wichita, KS 67206 | Oil & Gas Operator | Oct 2025 |
| 22570 | Petro-Assets Corporation | | Oil & Gas Operator | Feb 2000 |
| 22571 | Petro-Beth Oil & Gas, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2006 |
| 22572 | Petro-Can, Inc. | | Oil & Gas Operator | Apr 1998 |
| 22573 | Petro-Canada Resources (USA) | | Oil & Gas Operator | Dec 2009 |
| 22574 | Petro-Canada Resources (USA) Inc | Denver, CO 80202-472 | Oil & Gas Operator | Feb 2010 |
| 22575 | Petro-Chase Energy Corp | Oklahoma City, OK 73135-6205 | Oil & Gas Operator | Jan 2007 |
| 22576 | Petro-Chem Operating Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2025 |
| 22577 | Petro-Flow, Inc | | Gas Operator | Dec 2023 |
| 22578 | Petro-Go, Inc. | | Oil & Gas Operator | Mar 1996 |
| 22579 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
| 22580 | Petro-Guard Production,L.L.C. | Houston, TX 77063 | Oil & Gas Operator | Dec 2024 |
| 22581 | Petro-Haley | Borger, TX 79008 | Oil & Gas Operator | Dec 2025 |
| 22582 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 22583 | Petro-Hunt Dakota, LLC | | Oil & Gas Operator | Oct 2025 |
| 22584 | Petro-Hunt Permian, LLC | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 22585 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 22586 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 22587 | Petro-Lud Inc. | | Oil & Gas Operator | Oct 2025 |
| 22588 | Petro-Mac Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Aug 2025 |
| 22589 | Petro-Management Assoc., Inc. | Edmond, OK 73083-2346 | Oil & Gas Operator | Jun 2007 |
| 22590 | Petro-Management Inc | | Oil Operator | Dec 1998 |
| 22591 | Petro-Mark, Inc. | St Petersburg, FL 33701 | Oil & Gas Operator | Dec 2021 |
| 22592 | Petro-Met Energy LLC | Edmond, OK 73034-1237 | Oil Operator | Aug 2025 |
| 22593 | Petro-Raider LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 22594 | Petro-Search, Inc. | | Oil Operator | Jul 1992 |
| 22595 | Petro-Smith Operating LLC | Houston, TX 77010 | Oil & Gas Operator | Dec 2025 |
| 22596 | Petro-Technology | | Oil & Gas Operator | Aug 1991 |
| 22597 | Petro-Technology, Inc. | Topeka, KS 66604 | Gas Operator | Dec 1997 |
| 22598 | Petro-Tex Energy & Expl.Co.,Inc. | Llano, TX 78643 | Oil & Gas Operator | Dec 2025 |
| 22599 | Petro-Ventures, Inc. - Miss. | | Oil & Gas Operator | Apr 2009 |
| 22600 | Petro-West Corporation | Lubbock, TX 79404 | Oil & Gas Operator | Oct 2001 |