| 21401 | Parker Hannifin Corporation | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2024 |
| 21402 | Parker James A | Sand Springs, OK 74063 | Oil & Gas Operator | Feb 2026 |
| 21403 | Parker Joe | Talala, OK 74080-3556 | Oil & Gas Operator | Dec 2012 |
| 21404 | Parker Oil Company | Abilene, TX 79601 | Oil & Gas Operator | Feb 2024 |
| 21405 | Parker Operating Co., Inc. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2000 |
| 21406 | Parker Shirley M | Tulsa, OK 74136 | Oil Operator | Jun 2013 |
| 21407 | Parker Trucking And Assoc. | Independence, MO 64052 | Oil Operator | Aug 1996 |
| 21408 | Parkinsol Oil Company | Seminole, OK 74868-1648 | Oil & Gas Operator | Oct 2014 |
| 21409 | Parklan Oil | | Oil Operator | Dec 2016 |
| 21410 | Parko Oil | Los Lunas, NM 87031 | Oil & Gas Operator | Jul 2017 |
| 21411 | Parks Bill M | Seminole, OK 74818-1648 | Oil & Gas Operator | Apr 2014 |
| 21412 | Parks Jack Concrete Co | Hominy, OK 74035 | Oil Operator | Aug 2025 |
| 21413 | Parks James L | Edmond, OK 73034 | Oil & Gas Operator | Aug 2005 |
| 21414 | Parks Tex M Trust | Dallas, TX 75220-3864 | Oil Operator | Aug 2017 |
| 21415 | Parks, Lawrence E | Big Bend, WV 26136-0000 | Oil & Gas Operator | Nov 2013 |
| 21416 | Parks, Rhone Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2026 |
| 21417 | Parkside Pet Of Ohio Inc | Granville, OH 43023 | Oil & Gas Operator | Dec 1987 |
| 21418 | Parkway Petroleum, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Jul 1997 |
| 21419 | Parkwood Production, Inc. | Buna, TX 77612 | Oil Operator | Apr 2026 |
| 21420 | Parlay Oil Company | | Oil Operator | Dec 2002 |
| 21421 | Parmelee, Terrence G. E., Jr. | Chagrin Falls, OH 44023 | Gas Operator | Dec 2024 |
| 21422 | Parmer, I. A. | Abilene, TX 79606 | Oil & Gas Operator | Oct 1993 |
| 21423 | Parnell Operating | Kamay, TX 76369 | Oil & Gas Operator | Apr 2026 |
| 21424 | Parnes Oil Company | | Oil Operator | Jul 1994 |
| 21425 | Paroco DRLG Funds Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 1993 |
| 21426 | Parrish Corporat | | Oil & Gas Operator | Oct 1994 |
| 21427 | Parrish Corporation | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 21428 | Parrish Jr W F | Ardmore, OK 73401-2941 | Oil & Gas Operator | Feb 2025 |
| 21429 | Parrish, H Dwane & Rhonda K | Loco Hills, NM 88255 | Oil & Gas Operator | Apr 2022 |
| 21430 | Parrot Energy Company | Cortland, OH 44410 | Oil & Gas Operator | Dec 2024 |
| 21431 | Parsage Oil Company, L.L.C. | | Oil & Gas Operator | Feb 2026 |
| 21432 | Parsell, R. W. | Whitlash, MT 59545 | Oil & Gas Operator | Dec 2025 |
| 21433 | Parsell, RF Partnership | Bellevue, WA 98004 | Oil Operator | Jan 2026 |
| 21434 | Parsley Energy Operations, LLC | Irving, TX 75038 | Oil & Gas Operator | Jan 2021 |
| 21435 | Parsley, Amos | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2008 |
| 21436 | Parsons Engineering Corporation | Tulsa, OK 74137-7505 | Oil & Gas Operator | Oct 2017 |
| 21437 | Partech Investments LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2026 |
| 21438 | Partee Drilling Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Apr 2026 |
| 21439 | Parten Oil Co. | Houston, TX 77060 | Oil & Gas Operator | Jan 1994 |
| 21440 | Parten Operating Inc. | Houston, TX 77069 | Oil & Gas Operator | Apr 2026 |
| 21441 | Parten, Kenneth N. | St John, KS 67576 | Oil & Gas Operator | May 2009 |
| 21442 | Partin, Charles | Atascosa, TX 78002 | Oil & Gas Operator | Aug 2005 |
| 21443 | Partners In Crude, Inc. | Ponca City, OK 74602 | Oil & Gas Operator | Dec 1997 |
| 21444 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 21445 | Partners Petrole | | Oil Operator | Oct 1992 |
| 21446 | Partners Petroleum Inc | Independence, OH 44131 | Oil & Gas Operator | Dec 1988 |
| 21447 | Partners Production, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Apr 2026 |
| 21448 | Partyka, Joseph | Forestville, NY 14062 | Gas Operator | Dec 2024 |
| 21449 | Parwest Land Exploration Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Jan 2026 |
| 21450 | Pasadena Oil And Gas Corp | | Oil & Gas Operator | Dec 2001 |
| 21451 | Paschal Petroleum, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Apr 1994 |
| 21452 | Paschal, Phil A. | Kilgore, TX 75662 | Oil Operator | Aug 2021 |
| 21453 | Paschal, Shannon | Kilgore, TX 75663 | Oil Operator | Apr 2026 |
| 21454 | Pasco Oil Company | Oklahoma City, OK 73172-0454 | Oil & Gas Operator | Aug 2000 |
| 21455 | Pash Energy, Inc. | Borger, TX 79008 | Oil & Gas Operator | Apr 2026 |
| 21456 | Pasnik, Joshua | Orchard Park, NY 14127 | Gas Operator | Dec 2024 |
| 21457 | Pasnik, Matthew J., Pasnik, Linda H. | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 21458 | Passmore Robert W | Ada, OK 74820-5501 | Oil & Gas Operator | May 2022 |
| 21459 | Passmore, Mike F. | Monahans, TX 79756 | Oil & Gas Operator | Apr 2026 |
| 21460 | Pasture Production Company | Bryan, TX 77808 | Oil & Gas Operator | Apr 2005 |
| 21461 | Patalon Robert E | Erie, PA 16505-0444 | Gas Operator | Dec 2025 |
| 21462 | Patara Andover I LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2014 |
| 21463 | Patara Oil & Gas LLC | Dallas, TX 75219 | Oil & Gas Operator | Mar 2018 |
| 21464 | Patchwork Oil & Gas LLC | Davisville, WV 26142 | Oil & Gas Operator | Dec 2021 |
| 21465 | Patco Investments Inc | Seminole, OK 74868 | Oil Operator | Nov 2007 |
| 21466 | Pate, L. T. | Austin, TX 78701 | Oil & Gas Operator | Aug 1994 |
| 21467 | Pate-Dombaugh Pe | | Oil Operator | Sep 1991 |
| 21468 | Pathex Petroleum, Inc | | Gas Operator | Dec 2013 |
| 21469 | Pathfinder Capital L.C. | Dallas, TX 75219 | Oil Operator | Mar 2008 |
| 21470 | Pathfinder Energy Inc | Casper, WY 82605 | Oil & Gas Operator | May 2024 |
| 21471 | Pathfinder Exploration LLC | Norman, OK 73069-8516 | Gas Operator | Aug 2003 |
| 21472 | Pathway Resources LLC | | Oil Operator | Aug 2025 |
| 21473 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 21474 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 21475 | Patina San Juan Incorporated | Farmington, NM 87402 | Oil & Gas Operator | Dec 2007 |
| 21476 | Patkim Production Inc. | | Oil Operator | Jan 2025 |
| 21477 | Patno Oil & Gas Company | Zapata, TX 78076 | Oil & Gas Operator | Apr 2026 |
| 21478 | Patoil Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2003 |
| 21479 | Patricia Oil Company | Tuleta, TX 78162 | Oil Operator | Sep 2008 |
| 21480 | Patrick & Hadley | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 21481 | Patrick & Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2005 |
| 21482 | Patrick Development Corporation | Leawood, KS 66206 | Oil Operator | Dec 2025 |
| 21483 | Patrick Exploration Company | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 21484 | Patrick Pet. Corp. Of Michigan | Houston, TX 77227 | Oil & Gas Operator | Aug 1995 |
| 21485 | Patrick Petroleum Co. | Jackson, MI 49201 | Oil & Gas Operator | Nov 1993 |
| 21486 | Patrick Petroleum Corp Of Michigan | | Oil & Gas Operator | Nov 1993 |
| 21487 | Patrick Petroleum Corporation | | Oil & Gas Operator | Oct 1984 |
| 21488 | Patrick Production Company | Houston, TX 77027 | Oil & Gas Operator | Apr 2026 |
| 21489 | Patrick R J & Jack H Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2002 |
| 21490 | Patrick R J Oper | | Oil & Gas Operator | Jan 1995 |
| 21491 | Patrick RJ Operating Co | Liberal, KS 67905-1157 | Oil & Gas Operator | Nov 2014 |
| 21492 | Patrick Shipley | Indiana, PA 15701-6501 | Oil & Gas Operator | Dec 2016 |
| 21493 | Patrick, G.R. | Nocona, TX 76255 | Oil Operator | Apr 2026 |
| 21494 | Patrick, George & Patrick, Roger | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 21495 | Patrick, Joe Ben | Petrolia, TX 76377 | Oil & Gas Operator | Oct 2009 |
| 21496 | Patriot E & P Company | Tyler, TX 75710 | Oil & Gas Operator | Aug 2004 |
| 21497 | Patriot Energy Resources LLC | Golden, CO 80401 | Gas Operator | Aug 2014 |
| 21498 | Patriot Exploration Corp | Stahlstown, PA 15687-1301 | Oil & Gas Operator | Dec 2025 |
| 21499 | Patriot Oil Company, LLC | | Oil Operator | Nov 2025 |
| 21500 | Patriot Operating Company, Inc. | Houston, TX 77008 | Oil & Gas Operator | Sep 2003 |