| 601 | Rogers & Son | | Oil & Gas Operator | Dec 2008 |
| 602 | Rogers, M & Scull, David | | Oil & Gas Operator | Dec 2008 |
| 603 | Ross & Wharton Gas Co Inc | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 604 | Ross, Mike Inc. | Coalton, WV 26257 | Oil & Gas Operator | Dec 2021 |
| 605 | Rouzer Oil Company | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 606 | Rowes, Alvin | | Oil & Gas Operator | Dec 2002 |
| 607 | Roy, Dennis | | Gas Operator | Dec 2015 |
| 608 | Royal Resources Corporation | | Oil & Gas Operator | Dec 2008 |
| 609 | Russell Oil And Gas Company | Weston, WV 26452-0000 | Gas Operator | Dec 2021 |
| 610 | S & R Gas Ventures LTD. | Sand Fork, WV 26430-0172 | Oil & Gas Operator | Dec 2020 |
| 611 | Saga Petroleum LLC Of Colorado | Norman, OK 73072 | Oil & Gas Operator | Feb 2026 |
| 612 | Saglio, Inc. | Clay, WV 25043-0712 | Gas Operator | Dec 2021 |
| 613 | Saint-Gobain Ceramics & Plastics, Inc. | Buckhannon, WV 26201 | Gas Operator | Dec 2021 |
| 614 | Sampson, Lowell | | Oil & Gas Operator | Dec 2001 |
| 615 | Sancho Oil & Gas LLC | | Oil & Gas Operator | Dec 2021 |
| 616 | Santa Fe #1, LTD. | Spokane, WA 99228-0000 | Oil & Gas Operator | Nov 2021 |
| 617 | Sardis Gas, LLC | Mineral Wells, WV 26150 | Oil & Gas Operator | Dec 2024 |
| 618 | Satterfield, W. H., Gas Co. | | Oil & Gas Operator | Dec 2004 |
| 619 | Save-Sump Gas Inc. | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 2021 |
| 620 | Scarlet Oak Oil And Gas, LLC | | Oil & Gas Operator | Dec 2021 |
| 621 | Scarsdale Drilling Partners III LP | Scarsdale, NE 10583 | Oil & Gas Operator | Dec 2014 |
| 622 | SCD Oil Operators & Drilling Inc | Houston, TX 77069 | Oil & Gas Operator | Dec 2021 |
| 623 | Schultz Run Gas Company | | Oil & Gas Operator | Dec 2021 |
| 624 | Sears Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 625 | Seneca Oil Company | Tulsa, OK 74121-1518 | Oil & Gas Operator | Jan 2015 |
| 626 | Seneca-Upshur Petroleum, LLC | Denver, CO 80203 | Gas Operator | Dec 2015 |
| 627 | Shale Gas Production, LLC | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 628 | Shale Service, Inc. | | Oil & Gas Operator | Apr 2019 |
| 629 | Shawmut Production Corporation | Pittsburgh, PA 15219-1913 | Oil & Gas Operator | Jan 2003 |
| 630 | Shearer, Robert C | Canal Fulton, OH 44614-9730 | Oil & Gas Operator | Dec 2021 |
| 631 | Shewey, C. F., Agent | | Oil & Gas Operator | Dec 2008 |
| 632 | Sigma Corporation | Charleston, WV 25301-2644 | Gas Operator | Dec 2021 |
| 633 | Slaughter, Norman C. | | Oil & Gas Operator | Dec 2012 |
| 634 | Slone Energy, LLC | Oil Springs, KY 41238 | Oil & Gas Operator | Dec 2023 |
| 635 | Smith Land Surveying, Inc. Dba SLS Land & Energy Development | | Gas Operator | Dec 2021 |
| 636 | Smith, Carl E Petroleum Inc | Sandyville, WV 25275-0000 | Oil & Gas Operator | Dec 2021 |
| 637 | Smith, Walter E | Grantsville, WV 26147-0000 | Oil & Gas Operator | Dec 2021 |
| 638 | Solomon Production Corporation | Pullman, WV 26421-0003 | Oil & Gas Operator | Dec 2021 |
| 639 | Sonat Exploration Co. | Houston, TX 77251 | Oil & Gas Operator | Dec 2021 |
| 640 | Southeastern Gas Company | | Oil & Gas Operator | Dec 2019 |
| 641 | Southern Triangle Oil | | Oil & Gas Operator | Dec 2000 |
| 642 | Southern WV Oil & Gas | | Gas Operator | Dec 2021 |
| 643 | Spencer Enterprises Dba Hugh Spencer | Smithburg, WV 26436-0000 | Oil & Gas Operator | Dec 2021 |
| 644 | St. Clair Oil Co. | St Clairsville, OH 43950 | Oil & Gas Operator | Dec 1997 |
| 645 | Stalnaker Energy Corporation | | Oil & Gas Operator | Dec 2021 |
| 646 | Stalnaker, Fred W. (Mrs) | | Gas Operator | Dec 1996 |
| 647 | Stalnaker, William K | | Oil & Gas Operator | Dec 2008 |
| 648 | Standard Gas Co. | Jane Lew, WV 26378-0000 | Gas Operator | Dec 2011 |
| 649 | Standard Oil Company, Inc. | Parkesburg, WV 26103 | Oil & Gas Operator | Mar 2022 |
| 650 | Status Oil Well, Inc. | Charlotte, NC 28270 | Oil & Gas Operator | Dec 2011 |
| 651 | Stephen Debrular Dba Stephen Gas Company | Weston, WV 26452-7396 | Gas Operator | Dec 2021 |
| 652 | Stephen L Satterfield Production Company | Grantsville, WV 26147-0757 | Oil & Gas Operator | Nov 2021 |
| 653 | Stone Energy Corporation | Denver, CO 80202-2828 | Oil & Gas Operator | Oct 2014 |
| 654 | Stonestreet, Vance | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2006 |
| 655 | Stowers Energy, LLC | Celebration, FL 34747 | Oil & Gas Operator | Dec 2021 |
| 656 | Strategic Well Holdings, Inc. | | Oil & Gas Operator | Dec 2020 |
| 657 | Stream Restoration Specialists, LLC | | Gas Operator | Dec 2019 |
| 658 | Stydahar Oil & Gas Co. | | Oil & Gas Operator | Dec 2021 |
| 659 | Subsurface Energy, Inc. | | Oil & Gas Operator | Oct 2015 |
| 660 | Sugar Rock Incorporated | | Oil & Gas Operator | Dec 2021 |
| 661 | Summers Petroleum Inc | | Oil & Gas Operator | Dec 2002 |
| 662 | Summit Appalachia Operating Company, LLC | | Gas Operator | Dec 2021 |
| 663 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 664 | SWN Production (Ohio), LLC | Morgantown, WV 26508 | Oil & Gas Operator | Mar 2024 |
| 665 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Dec 2025 |
| 666 | SWV Energy Operating LLC | Spring, TX 77379 | Gas Operator | Dec 2018 |
| 667 | Syndex Resources, Inc. | Wellesley, MA 02181-000 | Oil & Gas Operator | Dec 2021 |
| 668 | Synergy Oil & Gas, Inc. | Houston, TX 77024 | Oil & Gas Operator | Nov 2019 |
| 669 | T & F Exploration, LP | Pittsburgh, PA 15241-1375 | Oil & Gas Operator | Oct 2025 |
| 670 | T.O.F., Inc. | | Oil & Gas Operator | Dec 2002 |
| 671 | Tapo Energy, LLC | West Union, WV 26456 | Oil & Gas Operator | Dec 2021 |
| 672 | Targa Development, Inc. | Clarksburg, WV 26301-0000 | Oil & Gas Operator | Dec 2021 |
| 673 | Tate Gas Company | Glenville, WV 26351-0000 | Oil & Gas Operator | Dec 2021 |
| 674 | Taylor, W H | | Gas Operator | Dec 2004 |
| 675 | Teavee Oil & Gas, Inc. | Charleston, WV 25301-0000 | Oil & Gas Operator | Dec 2021 |
| 676 | Tedik Limited Partnership | Williamson, WV 25661-0000 | Gas Operator | Dec 2021 |
| 677 | Ten A Coal Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2020 |
| 678 | Tender Equity Corporation | Marietta, OH 45750 | Oil & Gas Operator | Dec 2007 |
| 679 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | Nov 2025 |
| 680 | Tenmile Land Limited Liability Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 681 | Tenney, Donnie R. | Tallmansville, WV 26237-0000 | Gas Operator | Jan 2021 |
| 682 | Term Energy Corp. | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 683 | Texas Keystone Inc | Oakmont, PA 15139-2072 | Oil & Gas Operator | Nov 2017 |
| 684 | The Calvert Company | Oklahoma City, OK 73154-1589 | Oil & Gas Operator | Dec 2021 |
| 685 | The Glass Development Company | St. Marys, WV 26170-0000 | Oil & Gas Operator | Dec 2021 |
| 686 | Thomas Oil Company | | Oil & Gas Operator | Dec 2008 |
| 687 | Tiger Oil, Inc. | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2007 |
| 688 | TNG, Inc. | | Oil & Gas Operator | Dec 1996 |
| 689 | Toney Branch Gas Company | Huntington, WV 25702-0086 | Gas Operator | Dec 2021 |
| 690 | Tower Drilling Corporation | | Oil & Gas Operator | Dec 2021 |
| 691 | Trans Energy, Inc. | St. Marys, WV 26170 | Oil & Gas Operator | Dec 2017 |
| 692 | Tri-County Oil & Gas, Inc. | Fairmont, WV 26555-0000 | Oil & Gas Operator | Dec 2019 |
| 693 | Tri-Crude Oil & Gas | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 694 | Triad Energy, Inc. | Oklahoma City, OK 73105-1401 | Oil & Gas Operator | Dec 2025 |
| 695 | Triad Hunter, LLC | Spring, TX 77389 | Oil & Gas Operator | Dec 2021 |
| 696 | Triad Resources Inc | Spring, TX 77389 | Oil & Gas Operator | Dec 2020 |
| 697 | Tribune Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 698 | Trio Oil And Gas Company | Salem, WV 26426 | Oil & Gas Operator | Nov 2021 |
| 699 | Trio Petroleum Corp. | Glenville, WV 26351-0880 | Oil & Gas Operator | Jul 2016 |
| 700 | Trittipo, J. L. | | Oil & Gas Operator | Nov 1997 |