| 501 | Pin Oak Operating, LLC | | Gas Operator | Dec 2021 |
| 502 | Pinnacle Mining Company, LLC | | Oil & Gas Operator | Dec 2017 |
| 503 | PMJ, Inc. | Man, WV 25635-0000 | Gas Operator | Dec 2021 |
| 504 | Pocahontas Gas LLC | | Gas Operator | Dec 2021 |
| 505 | Postrock Eastern Production LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2020 |
| 506 | Precision Operating, LLC | Bridgeport, WV 26330 | Gas Operator | Dec 2019 |
| 507 | Premma Oil & Gas, LLC | Little Hocking, OH 45742 | Oil & Gas Operator | Dec 2020 |
| 508 | Prenco | Vienna, WV 26105 | Oil & Gas Operator | Dec 2021 |
| 509 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2025 |
| 510 | Prince Petroleum Company, Inc. | Salem, WV 26426 | Oil & Gas Operator | Dec 2014 |
| 511 | Prior, Ferrell L | | Oil & Gas Operator | Dec 2021 |
| 512 | Priority Production, LLC | | Gas Operator | Dec 2021 |
| 513 | Professional Oilfield Services, Inc. | Byesville, OH 43723 | Oil & Gas Operator | Dec 2021 |
| 514 | Pruitt, Cecil, Jr. | Chantilly, VA 22021-2105 | Oil & Gas Operator | Dec 2014 |
| 515 | Prusack, James | Grantsville, WV 26147-0180 | Oil & Gas Operator | Dec 2021 |
| 516 | Pure Oil Co | | Oil & Gas Operator | Dec 1996 |
| 517 | Putnam, William H | Marietta, OH 45750 | Oil & Gas Operator | Dec 2022 |
| 518 | Quaker State Corporation | Houston, TX 77002-2806 | Oil & Gas Operator | Dec 2013 |
| 519 | Quality Natural Gas, LLC | Allen, KY 41601 | Oil & Gas Operator | Dec 2023 |
| 520 | R & A Production Dba/R Lynch & A Engelke | Creston, WV 26141-7578 | Oil & Gas Operator | Dec 2021 |
| 521 | R & B Petroleum, Inc. | Scarsdale, NY 10583 | Oil & Gas Operator | Dec 2021 |
| 522 | R & R Oil & Gas LLC | Big Spring, TX 79720 | Oil & Gas Operator | Dec 2024 |
| 523 | R. D. Wiles, Inc. | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 524 | Radius Energy Services, LLC | Montevallo, AL 35115 | Oil & Gas Operator | Dec 2021 |
| 525 | Ragsco LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 526 | Ramco Energy Corporation | FT. Lauderdale, FL 33312 | Oil & Gas Operator | Dec 2008 |
| 527 | Ramsey Associated Petroleum, Inc. | Glenville, WV 26351-0090 | Oil & Gas Operator | Dec 2021 |
| 528 | Ran Resources, Inc. | Beverly, WV 26253 | Gas Operator | Dec 2021 |
| 529 | Range Resources - Pine Mountain, Inc. | | Oil & Gas Operator | Jan 2011 |
| 530 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Sep 2025 |
| 531 | Rare Earth Minerals, Inc. | | Oil & Gas Operator | Dec 2014 |
| 532 | Raven Ridge Energy, LLC | Charleston, WV 25302 | Oil & Gas Operator | Dec 2021 |
| 533 | Red Gas Company | Weston, WV 26452-0000 | Oil & Gas Operator | Dec 2021 |
| 534 | Red Rock Energy L.L.C. | | Oil & Gas Operator | Dec 2021 |
| 535 | Redco, Inc. | Columbus, OH 43229 | Oil & Gas Operator | Dec 1998 |
| 536 | Reed Gas Inc. | Charleston, WV 25301-0000 | Oil & Gas Operator | Dec 2021 |
| 537 | Reed Gas Joint Venture | Charleston, WV 25302-0000 | Gas Operator | Oct 2021 |
| 538 | Reserve Exploration Co. | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2007 |
| 539 | Reserve Oil & Gas, Inc. | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2021 |
| 540 | Riddle, William D | | Oil & Gas Operator | Dec 2021 |
| 541 | Ridgeland Energy, LLC | Pinch, WV 25156 | Oil & Gas Operator | Dec 2021 |
| 542 | Ritchie Petroleum Corporation, Inc. | Pennsboro, WV 26415-0000 | Oil & Gas Operator | Dec 2021 |
| 543 | Roberts, Robert S. Dba K & R Operating Co. | | Gas Operator | Dec 2021 |
| 544 | Rockwell Resources Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2024 |
| 545 | Rogers & Son | | Oil & Gas Operator | Dec 2008 |
| 546 | Rogers, M & Scull, David | | Oil & Gas Operator | Dec 2008 |
| 547 | Ross & Wharton Gas Co Inc | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 548 | Ross, Mike Inc. | Coalton, WV 26257 | Oil & Gas Operator | Dec 2021 |
| 549 | Rouzer Oil Company | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 550 | Rowes, Alvin | | Oil & Gas Operator | Dec 2002 |
| 551 | Royal Resources Corporation | | Oil & Gas Operator | Dec 2008 |
| 552 | Russell Oil And Gas Company | Weston, WV 26452-0000 | Gas Operator | Dec 2021 |
| 553 | S & R Gas Ventures LTD. | Sand Fork, WV 26430-0172 | Oil & Gas Operator | Dec 2020 |
| 554 | Saga Petroleum LLC Of Colorado | Norman, OK 73072 | Oil & Gas Operator | Dec 2025 |
| 555 | Saglio, Inc. | Clay, WV 25043-0712 | Gas Operator | Dec 2021 |
| 556 | Sampson, Lowell | | Oil & Gas Operator | Dec 2001 |
| 557 | Sancho Oil & Gas LLC | | Oil & Gas Operator | Dec 2021 |
| 558 | Sardis Gas, LLC | Mineral Wells, WV 26150 | Oil & Gas Operator | Dec 2024 |
| 559 | Save-Sump Gas Inc. | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 2021 |
| 560 | Scarlet Oak Oil And Gas, LLC | | Oil & Gas Operator | Dec 2021 |
| 561 | Scarsdale Drilling Partners III LP | Scarsdale, NE 10583 | Oil & Gas Operator | Dec 2014 |
| 562 | SCD Oil Operators & Drilling Inc | Houston, TX 77069 | Oil & Gas Operator | Dec 2021 |
| 563 | Schultz Run Gas Company | | Oil & Gas Operator | Dec 2021 |
| 564 | Sears Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 565 | Seneca Oil Company | Tulsa, OK 74121-1518 | Oil & Gas Operator | Jan 2015 |
| 566 | Shale Gas Production, LLC | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 567 | Shale Service, Inc. | | Oil & Gas Operator | Apr 2019 |
| 568 | Shawmut Production Corporation | Pittsburgh, PA 15219-1913 | Oil & Gas Operator | Jan 2003 |
| 569 | Shearer, Robert C | Barberton, OH 44203 | Oil & Gas Operator | Dec 2021 |
| 570 | Shewey, C. F., Agent | | Oil & Gas Operator | Dec 2008 |
| 571 | Sigma Corporation | Charleston, WV 25301-2644 | Gas Operator | Dec 2021 |
| 572 | Slaughter, Norman C. | | Oil & Gas Operator | Dec 2012 |
| 573 | Slone Energy, LLC | Oil Springs, KY 41238 | Oil & Gas Operator | Dec 2023 |
| 574 | Smith Land Surveying, Inc. Dba SLS Land & Energy Development | | Gas Operator | Dec 2021 |
| 575 | Smith, Carl E Petroleum Inc | Sandyville, WV 25275-0000 | Oil & Gas Operator | Dec 2021 |
| 576 | Smith, Walter E | Grantsville, WV 26147-0000 | Oil & Gas Operator | Dec 2021 |
| 577 | Solomon Production Corporation | Pullman, WV 26421-0003 | Oil & Gas Operator | Dec 2021 |
| 578 | Sonat Exploration Co. | Houston, TX 77251 | Oil & Gas Operator | Dec 2021 |
| 579 | Southeastern Gas Company | | Oil & Gas Operator | Dec 2019 |
| 580 | Southern Triangle Oil | | Oil & Gas Operator | Dec 2000 |
| 581 | Spencer Enterprises Dba Hugh Spencer | Smithburg, WV 26436-0000 | Oil & Gas Operator | Dec 2021 |
| 582 | St. Clair Oil Co. | St Clairsville, OH 43950 | Oil & Gas Operator | Dec 1997 |
| 583 | Stalnaker Energy Corporation | | Oil & Gas Operator | Dec 2021 |
| 584 | Stalnaker, William K | | Oil & Gas Operator | Dec 2008 |
| 585 | Standard Oil Company, Inc. | Parkesburg, WV 26103 | Oil & Gas Operator | Mar 2022 |
| 586 | Status Oil Well, Inc. | Charlotte, NC 28270 | Oil & Gas Operator | Dec 2011 |
| 587 | Stephen L Satterfield Production Company | Grantsville, WV 26147-0757 | Oil & Gas Operator | Nov 2021 |
| 588 | Stone Energy Corporation | Denver, CO 80202-2828 | Oil & Gas Operator | Oct 2014 |
| 589 | Stonestreet, Vance | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2006 |
| 590 | Stowers Energy, LLC | Celebration, FL 34747 | Oil & Gas Operator | Dec 2021 |
| 591 | Strategic Well Holdings, Inc. | | Oil & Gas Operator | Dec 2020 |
| 592 | Stydahar Oil & Gas Co. | | Oil & Gas Operator | Dec 2021 |
| 593 | Subsurface Energy, Inc. | | Oil & Gas Operator | Oct 2015 |
| 594 | Sugar Rock Incorporated | | Oil & Gas Operator | Dec 2021 |
| 595 | Summers Petroleum Inc | | Oil & Gas Operator | Dec 2002 |
| 596 | Summit Appalachia Operating Company, LLC | | Gas Operator | Dec 2021 |
| 597 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 598 | SWN Production (Ohio), LLC | Morgantown, WV 26508 | Oil & Gas Operator | Mar 2024 |
| 599 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Sep 2025 |
| 600 | SWV Energy Operating LLC | Spring, TX 77379 | Gas Operator | Dec 2018 |