| 701 | Rabbitt C Michael | Chicora, PA 16025-1916 | Oil & Gas Operator | Dec 2015 |
| 702 | Ralph L Albright Drilling | Reno, NV 89511-7627 | Oil & Gas Operator | Dec 1991 |
| 703 | Randall Florence | Albion, PA 16401-9768 | Gas Operator | Dec 2010 |
| 704 | Range Opr Co | Yatesboro, PA 16263-0235 | Oil & Gas Operator | Dec 1999 |
| 705 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Dec 2025 |
| 706 | Rannuff Oil & Gas Co | Waynesburg, PA 15370-1437 | Oil & Gas Operator | Dec 2025 |
| 707 | RC Southwell Oil LLC | Warren, PA 16365-3686 | Oil & Gas Operator | Dec 2025 |
| 708 | Re Fox & Assoc Inc | Pittsburgh, PA 15243-0130 | Gas Operator | Dec 1999 |
| 709 | Re Gas Dev LLC | State College, PA 16801-7085 | Oil & Gas Operator | Sep 2018 |
| 710 | Reclusive Energy LLC | Gifford, PA 16732 | Oil & Gas Operator | Dec 2020 |
| 711 | Red Jacket Energy LLC | Roulette, PA 16746-1408 | Oil & Gas Operator | Dec 2024 |
| 712 | Red Oak Energy LLC | Clarksburg, PA 15725-8824 | Oil & Gas Operator | Dec 2025 |
| 713 | Red Valley Resources LLC | McCordsville, IN 46055-0294 | Oil Operator | Dec 2015 |
| 714 | Redmill Drilling | Kittanning, PA 16201-7123 | Oil & Gas Operator | Dec 2025 |
| 715 | Reichard Equip Co | New Bethlehem, PA 16242-1936 | Gas Operator | Dec 2021 |
| 716 | Rejiss Assoc | Braddock, PA 15104-1948 | Oil & Gas Operator | Dec 2009 |
| 717 | Rejiss Assoc Holdings LLC | Braddock, PA 15104-1948 | Gas Operator | Dec 2025 |
| 718 | Remington Capital Holdings Inc | North East, PA 16428-0026 | Oil & Gas Operator | Dec 2022 |
| 719 | Remnant Group Inc | Pittsburgh, PA 15238-1359 | Oil & Gas Operator | Dec 2013 |
| 720 | Rensma Steven E | Titusville, PA 16354-5304 | Oil Operator | Dec 1993 |
| 721 | Repsol Oil & Gas USA, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2026 |
| 722 | Return Oil Corp | Oil City, PA 16301-0564 | Oil Operator | Dec 1992 |
| 723 | Rex Drummond | Conneaut, OH 44030-9678 | Oil & Gas Operator | Dec 2019 |
| 724 | Rex Energy Operating Corp. | State College, PA 16801 | Oil & Gas Operator | Jun 2012 |
| 725 | Rhoades Oil Co | Tulsa, OK 74136-5575 | Oil & Gas Operator | Aug 2013 |
| 726 | Rice Drilling B LLC | Canonsburg, PA 15317-1000 | Gas Operator | Dec 2025 |
| 727 | Richard B Herzog | Bradford, PA 16701-3619 | Oil Operator | Dec 2007 |
| 728 | Richard G Boarts | Ford City, PA 16226-7001 | Gas Operator | Dec 2012 |
| 729 | Richard H Burkland | Lemont Furnace, PA 15456-0073 | Oil & Gas Operator | Dec 2012 |
| 730 | Richards Drilling Co | Venango, PA 16440-1123 | Oil & Gas Operator | Dec 2015 |
| 731 | Rick & Sons Oil LLC | Warren, PA 16365-3561 | Oil & Gas Operator | Dec 2025 |
| 732 | Ridgeview Gas & Oil Inc | Templeton, PA 16259-4505 | Oil & Gas Operator | Dec 2024 |
| 733 | Ridgeview Gas Co | Templeton, PA 16259-4505 | Oil & Gas Operator | Dec 2010 |
| 734 | Ristau Ricky J | Warren, PA 16365-3560 | Oil & Gas Operator | Dec 2025 |
| 735 | River Ridge Gravel Co | Meadville, PA 16335-9149 | Oil Operator | Dec 2025 |
| 736 | RJ Schreiner SR | Freedom, PA 15042-9353 | Oil & Gas Operator | Dec 2015 |
| 737 | Roach & Assoc Inc | Pittsburgh, PA 15228-1924 | Gas Operator | Dec 2024 |
| 738 | Robert J & Wilma J Webster | Edinboro, PA 16412-4928 | Gas Operator | Dec 2018 |
| 739 | Robert L Smith | Sprankle Mills, PA 15776-8312 | Gas Operator | Dec 2025 |
| 740 | Rock Oil Resources LLC | Titusville, PA 16354 | Oil Operator | Dec 2025 |
| 741 | Rockdale Marcellus LLC | Canonsburg, PA 15317 | Gas Operator | Apr 2022 |
| 742 | Rocksauce Opr LLC | Canonsburg, PA 15317-3906 | Oil & Gas Operator | Dec 2025 |
| 743 | Roger K Dunham | Sheffield, PA 16347-0145 | Oil Operator | Dec 2016 |
| 744 | Ronald L Nick | Lucinda, PA 16235-3006 | Gas Operator | Dec 2023 |
| 745 | Roof Carl | Indiana, PA 15701 | Gas Operator | Dec 2025 |
| 746 | Roulette Oil & Gas LLC | Shinglehouse, PA 16748-3406 | Oil & Gas Operator | Dec 2025 |
| 747 | RS Gas Co Inc | Sprankle Mills, PA 15776-8312 | Gas Operator | Dec 2025 |
| 748 | Ruffner Clair L III | Marion Center, PA 15759-7818 | Gas Operator | Dec 2025 |
| 749 | Russ Holden Well SVC | Sheffield, PA 16347-2904 | Oil & Gas Operator | Dec 2024 |
| 750 | S & S Oil | Ponca City, OK 74601 | Oil & Gas Operator | Dec 2009 |
| 751 | S & T SVC & Supply Inc | Pleasantville, PA 16341-2817 | Oil & Gas Operator | Dec 2025 |
| 752 | Samson Exploration LLC | Tulsa, OK 74101 | Oil & Gas Operator | Dec 2025 |
| 753 | Samson Res Co | Tulsa, OK 74103-3103 | Gas Operator | Jan 2015 |
| 754 | Sandstone Dev LLC | Bradford, PA 16701-2922 | Oil & Gas Operator | Dec 2024 |
| 755 | Sandstone Resources | Saint Joseph, MO 64506 | Oil & Gas Operator | Dec 1995 |
| 756 | Schneider Edward H | Bridgeville, PA 15017-2165 | Gas Operator | Dec 2025 |
| 757 | Schrader Willard C | Tionesta, PA 16353-8114 | Oil & Gas Operator | Dec 2025 |
| 758 | Schrecengost Fred M | Sligo, PA 16255-0216 | Oil & Gas Operator | Dec 2016 |
| 759 | Schreiner Oil & Gas Inc | Prescott, AZ 86303 | Oil & Gas Operator | Dec 2023 |
| 760 | Scorpio Energy Inc | Sheffield, PA 16347-0929 | Oil & Gas Operator | Dec 2025 |
| 761 | Semac Ind Inc | Spartansburg, PA 16434-1627 | Gas Operator | Dec 2015 |
| 762 | Seneca Mineral Co Inc | Erie, PA 16509-4250 | Gas Operator | Dec 2002 |
| 763 | Seneca Resources Co LLC | Cranberry Township, PA 16066 | Oil & Gas Operator | Dec 2025 |
| 764 | September Corp | Titusville, PA 16354-6833 | Oil & Gas Operator | Dec 2025 |
| 765 | Sergeant Gas Co Inc | Wilcox, PA 15870-1810 | Oil & Gas Operator | Dec 2024 |
| 766 | Shaner W G | Longmont, CO 80503 | Gas Operator | Dec 2021 |
| 767 | Shawmut Production Corporation | Pittsburgh, PA 15219-1913 | Oil & Gas Operator | Jan 2003 |
| 768 | Shearer James I | Blairsville, PA 15717-0337 | Oil & Gas Operator | Dec 2003 |
| 769 | Shelex Drilling Inc | Lexington, KY 40523 | Oil & Gas Operator | Dec 2025 |
| 770 | Shelly Oil & Gas Inc | Avonmore, PA 15618-9748 | Gas Operator | Dec 2025 |
| 771 | Simon Of Bolivar Enterprises Inc | Cuba, NY 14727 | Oil & Gas Operator | Dec 2024 |
| 772 | Simpson Gary H | Albion, PA 16401-8008 | Gas Operator | Dec 2014 |
| 773 | SK Opr Inc | Cabot, PA 16023-1250 | Gas Operator | Dec 2025 |
| 774 | Sliverville Oil Co LLC | Bradford, PA 16701-2770 | Oil & Gas Operator | Dec 2025 |
| 775 | SLT Production LLC | Sheffield, PA 16347-0547 | Oil & Gas Operator | Dec 2025 |
| 776 | SM Energy | Denver, CO 80203-4361 | Gas Operator | Feb 2015 |
| 777 | Sme Well SVC Inc | Herman, PA 16039-0156 | Oil & Gas Operator | Dec 2024 |
| 778 | Snee & Eberly & People Natural Gas | Unknown, PA 15000 | Gas Operator | Dec 1986 |
| 779 | Snyder Bros Inc | Kittanning, PA 16201 | Oil & Gas Operator | Dec 2025 |
| 780 | Snyder Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 781 | Society Of Bros In Pa Inc | Farmington, PA 15437-0240 | Gas Operator | Dec 2025 |
| 782 | Somerset Oil & Gas Company | Portland, TX 78374 | Oil & Gas Operator | Dec 2006 |
| 783 | Songer Harriett R | Brookville, PA 15825-5367 | Oil & Gas Operator | Dec 2010 |
| 784 | South Shore Energy LLC | Geneva, OH 44041 | Oil & Gas Operator | Dec 2024 |
| 785 | Southwell Russell C | Warren, PA 16365-3686 | Oil & Gas Operator | Dec 2022 |
| 786 | Southwell William R | Warren, PA 16365-1259 | Oil & Gas Operator | Dec 2017 |
| 787 | Southwestern Energy Prod Co | Houston, TX 77032 | Oil & Gas Operator | Jun 2015 |
| 788 | Spahn Keith H | Butler, PA 16002-9176 | Oil & Gas Operator | Dec 2018 |
| 789 | Spartan Resource MGMT Corp | Rural Valley, PA 16249-0326 | Gas Operator | Dec 2024 |
| 790 | Spartywood Prod Inc | Spartansburg, PA 16434-1627 | Gas Operator | Dec 2015 |
| 791 | Star Energy Inc | Dayton, PA 16222-4325 | Oil & Gas Operator | Dec 2025 |
| 792 | Stateside Energy Group LLC | North Miami Beach, FL 33435 | Oil & Gas Operator | Dec 2024 |
| 793 | STD Steel | Latrobe, PA 15650-0071 | Oil & Gas Operator | Dec 2002 |
| 794 | Stedman Energy Inc | Chautauqua, NY 14722 | Oil & Gas Operator | Dec 2025 |
| 795 | Stefanik A Louis | Vandergrift, PA 15690-0476 | Oil & Gas Operator | Dec 2008 |
| 796 | Stephenson Group Natural Gas Co | Smicksburg, PA 16256-1710 | Gas Operator | Dec 2020 |
| 797 | Stephenson Mark M | Smicksburg, PA 16256-1710 | Gas Operator | Dec 2009 |
| 798 | Sterling Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2015 |
| 799 | Stewart Drilling Program | Home, PA 15747-9801 | Oil & Gas Operator | Dec 2014 |
| 800 | Stewart Inc | Ringling, OK 73456 | Oil & Gas Operator | Dec 2025 |