| 1 | Adobe Resources Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2002 |
| 2 | Amer Exploration Co | Plymouth Meeting, PA 19462-1640 | Oil & Gas Operator | Dec 2008 |
| 3 | Apollo Resources LLC | Vintondale, PA 15961-0222 | Oil & Gas Operator | Jun 2025 |
| 4 | Atlas Resources Inc | Coraopolis, PA 15108-0611 | Oil & Gas Operator | Dec 2007 |
| 5 | Atlas Resources LLC | Pittsburgh, PA 15275-1033 | Oil & Gas Operator | Jun 2018 |
| 6 | Belden & Blake Corporation | North Canton, OH 44720 | Oil & Gas Operator | Dec 2016 |
| 7 | BG Production, LLC | Denver, NC 28037-8088 | Oil & Gas Operator | Dec 2021 |
| 8 | Big Dog Energy LLC | Sewickley, PA 15143-8782 | Gas Operator | Jun 2025 |
| 9 | Bright Well Oil & Gas Co | Armagh, PA 15920-0229 | Gas Operator | Dec 2023 |
| 10 | Burkland William S | Ligonier, PA 15658-0467 | Oil & Gas Operator | Dec 2010 |
| 11 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2025 |
| 12 | Campbell Oil & Gas Inc | Indiana, PA 15701-0278 | Oil & Gas Operator | Jun 2025 |
| 13 | Carnegie Natural Gas Co | Pittsburgh, PA 15236-1435 | Gas Operator | Dec 1991 |
| 14 | Carnegie Production Co | Charleston, WV 25328 | Oil & Gas Operator | Dec 2017 |
| 15 | Castle Exploration Company Inc | Blue Bell, PA 19422 | Oil & Gas Operator | May 2018 |
| 16 | Castle Gas Company Inc | Pittsburgh, PA 15236-2466 | Oil & Gas Operator | Dec 2007 |
| 17 | Chesapeake Appalachia LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jun 2025 |
| 18 | Chestnut Ridge Storage LLC | San Diego, CA 92121-1008 | Gas Operator | Dec 2019 |
| 19 | CNX Gas Company LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Jun 2025 |
| 20 | Columbia Gas Trans LLC | Charleston, WV 25325-1273 | Gas Operator | Dec 1987 |
| 21 | Columbia Natural Res Inc | Charleston, WV 25362-0070 | Gas Operator | Dec 2008 |
| 22 | Columbia Natural Resources, LLC | Charleston, WV 23502 | Oil & Gas Operator | Dec 2021 |
| 23 | Consol Gas Company | Canonsburg, PA 15317 | Oil & Gas Operator | Dec 2021 |
| 24 | Coterra Energy Inc | Pittsburgh, PA 15275-1121 | Oil & Gas Operator | Jun 2025 |
| 25 | Cottonwood Prod Co Inc | Buffalo, NY 14202-2212 | Gas Operator | Dec 2002 |
| 26 | Dakota Oil & Gas Co | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2024 |
| 27 | Delta Petro Corp Of Colorado | Houston, TX 77010-3089 | Gas Operator | Dec 2003 |
| 28 | Diversified Oil & Gas LLC | Jackson Center, PA 16133 | Oil & Gas Operator | Jun 2025 |
| 29 | Diversified Production LLC | Keithville, LA 71047 | Oil & Gas Operator | Sep 2025 |
| 30 | Dorso Energy | Wexford, PA 15090 | Oil & Gas Operator | Dec 2004 |
| 31 | Dorso LLC | Wexford, PA 15090-8758 | Oil & Gas Operator | Dec 2005 |
| 32 | Dorso LP | Wexford, PA 15090-8314 | Oil & Gas Operator | Dec 2024 |
| 33 | Douglas Oil & Gas Inc | Canonsburg, PA 15317 | Gas Operator | Dec 2003 |
| 34 | Douglas Oil & Gas LP | State College, PA 16803 | Oil & Gas Operator | Dec 2007 |
| 35 | Eastern Gas Trans & Storage Inc | Bridgeport, WV 26330-6919 | Oil & Gas Operator | Feb 2025 |
| 36 | Ej Brumage & Ra Pultorak | Waynesburg, PA 15370-2434 | Gas Operator | Dec 2018 |
| 37 | Energy Corp Of Amer | Charleston, WV 25311-1264 | Oil & Gas Operator | Mar 2018 |
| 38 | EOG Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2025 |
| 39 | Eqt Chap, LLC | Pittsburgh, PA 15222 | Oil & Gas Operator | Jun 2025 |
| 40 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Jun 2025 |
| 41 | Equitable Prod Eastern States Exploration Inc | Snow Shoe, PA 16874-0178 | Gas Operator | Dec 2001 |
| 42 | Equitrans Inc | Cannonsburg, PA 15317 | Oil & Gas Operator | Dec 2018 |
| 43 | Fairman Corp | Du Bois, PA 15801-0288 | Oil & Gas Operator | Dec 2024 |
| 44 | Fairman Drilling Co | Du Bois, PA 15801-0288 | Oil & Gas Operator | Dec 2002 |
| 45 | Forrest Richard E | New Bethlehem, PA 16242-2547 | Gas Operator | Dec 2019 |
| 46 | Fortress Energy Corp | Pittsburgh, PA 15217-4207 | Oil & Gas Operator | Dec 2023 |
| 47 | Gallatin Fuels, Inc. | Uniontown, PA 15401-5513 | Oil & Gas Operator | Dec 2020 |
| 48 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Jun 2025 |
| 49 | Greylock Opco LLC | Charleston, WV 25311 | Oil & Gas Operator | Dec 2024 |
| 50 | Haddad & Brooks Inc | Washington, PA 15301 | Oil & Gas Operator | Dec 2018 |
| 51 | Indian Hill Gas Co Inc | Fayette City, PA 15438-1203 | Oil & Gas Operator | Dec 2024 |
| 52 | Inr Opr LLC | Morgantown, WV 26508-9201 | Gas Operator | Jun 2025 |
| 53 | Interstate Gas MKT Inc | Indiana, PA 15701 | Oil & Gas Operator | Dec 2018 |
| 54 | James Drilling Corp | Blairsville, PA 15717 | Oil & Gas Operator | Dec 2004 |
| 55 | Keyrock Energy LLC | Johnson City, TN 37604-5749 | Oil & Gas Operator | Dec 2024 |
| 56 | Kriebel Gas Inc | Clarion, PA 16214-0765 | Oil & Gas Operator | Dec 1999 |
| 57 | Kriebel Minerals Inc | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2020 |
| 58 | Kriebel Natural Gas Co LLC | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2024 |
| 59 | Kyle Energy Inc NV | Apollo, PA 15613-0249 | Gas Operator | Dec 1996 |
| 60 | Lahd Energy Inc | Canton, OH 44709 | Gas Operator | Dec 2009 |
| 61 | Linn Opr Inc | Indiana, PA 15701-8914 | Oil & Gas Operator | Dec 2007 |
| 62 | Linn Opr LLC | Indiana, PA 15701-8914 | Gas Operator | Dec 2004 |
| 63 | LPR Energy, LLC | Dallas, TX 75219 | Oil & Gas Operator | Sep 2025 |
| 64 | M4 Energy, LLC | Watsontown, PA 17777-1133 | Oil & Gas Operator | Dec 2024 |
| 65 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Jul 2025 |
| 66 | MTN V Oil & Gas Inc | Indiana, PA 15701-8914 | Oil & Gas Operator | Dec 2024 |
| 67 | Murphy Prod Inc | Vanderbilt, PA 15486-1001 | Oil & Gas Operator | Dec 2024 |
| 68 | Natural Energy Dev Corp | Pittsburgh, PA 15241-1548 | Oil & Gas Operator | Dec 2018 |
| 69 | Northeast Natural Energy LLC | Charleston, WV 25301-2719 | Oil & Gas Operator | Jun 2025 |
| 70 | Noumenon Corporation | Core, WV 26541-7072 | Oil & Gas Operator | Dec 2024 |
| 71 | Nytis Exploration Company LLC | Lexington, KY 40509 | Oil & Gas Operator | Dec 2021 |
| 72 | Oil & Gas MGMT Inc | Mount Pleasant, PA 15666-3304 | Oil & Gas Operator | Dec 2024 |
| 73 | Oil & Gas SVC Inc | Reelsville, IN 46171-9686 | Gas Operator | Dec 1991 |
| 74 | Pa Mineral SVCS LLC | Indiana, PA 15701 | Oil & Gas Operator | Dec 2024 |
| 75 | PDC Mountaineer LLC | Bridgeport, WV 26330-9665 | Oil & Gas Operator | Dec 2017 |
| 76 | Penn VIew Exploration Inc | Blairsville, PA 15717-7961 | Oil & Gas Operator | Dec 2024 |
| 77 | Penneco Oil Company, Inc. | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2024 |
| 78 | Petro Dev Corp | Bridgeport, WV 26330-0026 | Oil & Gas Operator | Dec 2013 |
| 79 | Phillips Exploration Inc | Warrendale, PA 15086 | Oil & Gas Operator | Dec 2012 |
| 80 | Phillips Prod Co | Warrendale, PA 15086-7537 | Oil & Gas Operator | Dec 2011 |
| 81 | Questa Petro Co | Pittsburgh, PA 15241-0863 | Oil & Gas Operator | Dec 2023 |
| 82 | Range Opr Co | Yatesboro, PA 16263-0235 | Oil & Gas Operator | Dec 1999 |
| 83 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Jun 2025 |
| 84 | Re Fox & Assoc Inc | Pittsburgh, PA 15243-0130 | Gas Operator | Dec 1999 |
| 85 | Re Gas Dev LLC | State College, PA 16801-7085 | Oil & Gas Operator | Sep 2018 |
| 86 | Rejiss Assoc | Braddock, PA 15104-1948 | Oil & Gas Operator | Dec 2009 |
| 87 | Rejiss Assoc Holdings LLC | Braddock, PA 15104-1948 | Gas Operator | Dec 2024 |
| 88 | Rex Energy Operating Corp. | State College, PA 16801 | Oil & Gas Operator | Jun 2012 |
| 89 | Richard H Burkland | Lemont Furnace, PA 15456-0073 | Oil & Gas Operator | Dec 2012 |
| 90 | Snyder Bros Inc | Kittanning, PA 16201 | Oil & Gas Operator | Jun 2025 |
| 91 | Somerset Oil & Gas Company | Portland, TX 78374 | Oil & Gas Operator | Dec 2006 |
| 92 | Stone Ridge Energy LLC | Uniontown, PA 15401-6831 | Oil & Gas Operator | Jun 2025 |
| 93 | T & F Exploration, LP | Pittsburgh, PA 15241-1375 | Oil & Gas Operator | Oct 2024 |
| 94 | Texas Keystone Inc | Oakmont, PA 15139-2072 | Oil & Gas Operator | Nov 2017 |
| 95 | The Production Co | Ligonier, PA 15658-0467 | Oil & Gas Operator | Dec 2012 |
| 96 | The Production Co LLC | Ligonier, PA 15658-0467 | Oil & Gas Operator | Dec 2020 |
| 97 | Turm Oil Inc | Butler, PA 16002-0471 | Oil & Gas Operator | Dec 2024 |
| 98 | Viking Resources Corp | Deerfield, OH 44411-0160 | Oil & Gas Operator | Dec 2007 |
| 99 | Viking Resources LLC | Uniontown, OH 44685 | Oil & Gas Operator | Dec 2017 |
| 100 | Washington Energy Co LLC | Canonsburg, PA 15317-0400 | Oil & Gas Operator | Dec 2024 |