| 101 | Chesapeake Appalachia, LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2025 |
| 102 | Chesna, Bernard | Alden, NY 14004 | Gas Operator | Dec 2024 |
| 103 | Chris Glade Oil & Gas, LLC | | Gas Operator | Dec 2011 |
| 104 | Christian Airmen, Incorporated | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 105 | Ciminello, Angeline | Fredonia, NY 14063 | Gas Operator | Dec 2024 |
| 106 | City Of Dunkirk Waste Water Treatment Plant | Dunkirk, NY 14048 | Gas Operator | Dec 2024 |
| 107 | Civiletto, George & Wendy | Fredonia, NY 14063 | Gas Operator | Dec 2024 |
| 108 | Clark, Daniel J. | Auburn, NY 13021 | Gas Operator | Dec 2024 |
| 109 | Cline Oil Inc | Bradford, PA 16701 | Oil & Gas Operator | Dec 2024 |
| 110 | CNX Gas Company LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Dec 2025 |
| 111 | Collins Oil Co. | Bartlesville, OK 74006 | Oil & Gas Operator | Dec 2024 |
| 112 | Collins, Dave | Bolivar, NY 14715 | Oil & Gas Operator | Dec 2024 |
| 113 | Collins, David A And Cole, Alexander B. | Bolivar, NY 14715 | Oil & Gas Operator | Dec 2024 |
| 114 | Cone, Ronald M. | Stafford, NY 14143 | Gas Operator | Dec 2024 |
| 115 | Conklin, Patrick J. | Rushville, NY 14544 | Gas Operator | Dec 2024 |
| 116 | Cook, Lee J. | Penn Yan, NY 14527 | Gas Operator | Dec 2024 |
| 117 | Coots, Jesse | Le Roy, NY 14482 | Gas Operator | Dec 2024 |
| 118 | Copper Ridge Oil Inc | Olean, NY 14760 | Oil & Gas Operator | Dec 2024 |
| 119 | Corfu Darien Properties, LLC | Corfu, NY 14036 | Gas Operator | Dec 2024 |
| 120 | Cotton Well Drilling Co Inc | Sheridan, NY 14135 | Oil & Gas Operator | Dec 2024 |
| 121 | Country Side Sand & Gravel, Inc | Collins, NY 14034 | Gas Operator | Dec 2024 |
| 122 | County Line Stone Co., Inc. | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 123 | Covert, Christopher P. | Auburn, NY 13021 | Gas Operator | Dec 2024 |
| 124 | Crossley, Patricia J. | Kennedy, NY 14747 | Gas Operator | Dec 2024 |
| 125 | Crow, Donald | Gerry, NY 14740 | Gas Operator | Dec 2024 |
| 126 | Curtis & Son Oil Inc | Sugar Grove, PA 16350 | Oil & Gas Operator | Dec 2024 |
| 127 | Czarniak, Dennis G. | Holland, NY 14080 | Gas Operator | Dec 2024 |
| 128 | Czerniak, Michael A. And Cheryl A. | Lakewood, NY 14750 | Gas Operator | Dec 2024 |
| 129 | Czesak Dairy Farm, LLC | Chaffee, NY 14030 | Gas Operator | Dec 2024 |
| 130 | Czworka, Terry D. | Le Roy, NY 14482 | Gas Operator | Dec 2024 |
| 131 | D & B Farm LLC | Wayne, NJ 07470 | Gas Operator | Dec 2024 |
| 132 | D'Amato, Giovanni C. | Elma, NY 14059 | Gas Operator | Dec 2024 |
| 133 | D. C. Page Farms, Inc | Le Roy, NY 14482 | Gas Operator | Dec 2023 |
| 134 | Dallas Energy LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2024 |
| 135 | Dannic Energy Corp | Indiana, PA 15701-1532 | Oil & Gas Operator | Dec 2024 |
| 136 | Daughenbaugh, James And Meshelle | Gerry, NY 14740 | Gas Operator | Dec 2024 |
| 137 | Davidson, William A, & Jennifer I. | Westfield, NY 14787 | Gas Operator | Dec 2024 |
| 138 | Dawydko, Keith A. & Ronald T. | Clarence, NY 14031 | Gas Operator | Dec 2024 |
| 139 | Deacon, Thomas J. | Randolph, NY 14772 | Gas Operator | Dec 2024 |
| 140 | Decker, James K. & Tiffany J. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2024 |
| 141 | Degroot, Garry | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 142 | Demambro, Gene Brian | Mayville, NY 14757 | Gas Operator | Dec 2024 |
| 143 | Densmore, Winfield F. Densmore, Debra L. | Lakewood, NY 14750 | Gas Operator | Dec 2024 |
| 144 | Depriest, Howard Joseph & Susan M. | East Aurora, NY 14052 | Gas Operator | Dec 2024 |
| 145 | Deuble, Adam And Misty Pennington | Jamestown, NY 14701 | Gas Operator | Dec 2024 |
| 146 | Diana Pease & Steve Pease Revocable Trust | Wellsville, NY 14895 | Gas Operator | Dec 2024 |
| 147 | Dibiaggio, Deirdre And Katherine Carmichael | Atlantis, FL 33463 | Gas Operator | Dec 2024 |
| 148 | Dickman Farms, LLC | Auburn, NY 13021 | Gas Operator | Dec 2024 |
| 149 | Didomenico, Thomas J | Jamestown, NY 14701 | Gas Operator | Dec 2024 |
| 150 | Dimes Energy GP Inc. | Olean, NY 14760 | Oil & Gas Operator | Dec 2024 |
| 151 | DJS Farms Inc. | Waterloo, NY 13165 | Gas Operator | Dec 2024 |
| 152 | Dolinar, Michael J. | Angola, NY 14006 | Gas Operator | Dec 2024 |
| 153 | Dominion Energy Transmission, Inc. | | Oil & Gas Operator | Dec 2019 |
| 154 | Donald C. Ring Revocable Trust | Sebring, FL 33875 | Gas Operator | Dec 2024 |
| 155 | Dorrett Oil Partners | Friendship, NY 14739 | Gas Operator | Dec 2024 |
| 156 | Dresser Industrial Park, Inc. | North Tonawanda, NY 14120 | Gas Operator | Dec 2024 |
| 157 | Drillers LLC | Indiana, PA 15701 | Oil & Gas Operator | Dec 2024 |
| 158 | Dubisz, Richard And Deborah | East Aurora, NY 14052 | Gas Operator | Dec 2024 |
| 159 | Duink, Darryl | Hamburg, NY 14075 | Gas Operator | Dec 2024 |
| 160 | Dunkirk City School District | Dunkirk, NY 14048 | Gas Operator | Dec 2024 |
| 161 | Dunnewold Farms LLC | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 162 | Dust Bowl Oil Company, Inc. | Spencerport, NY 14559 | Oil Operator | Dec 2024 |
| 163 | Dye, Jennifer J. | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 164 | Earsing, Mary E. | Marilla, NY 14102 | Gas Operator | Dec 2024 |
| 165 | East Aurora Union Free School District | East Aurora, NY 14052 | Gas Operator | Dec 2024 |
| 166 | East Property Management, LLC | Sewickley, PA 15143 | Gas Operator | Dec 2024 |
| 167 | East Resources, Inc. | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2021 |
| 168 | Eddy, Dale E. | Andover, NY 14806 | Oil & Gas Operator | Dec 2024 |
| 169 | Eden Central School District | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 170 | Eden VFW Post No 8265 | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 171 | Edler, John W. And Susan | Irving, NY 14081 | Gas Operator | Dec 2024 |
| 172 | Einink, Mark B. | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 173 | Ellington Energy, Inc. | Cherry Creek, NY 14723 | Gas Operator | Dec 2024 |
| 174 | Elliott, Catherine | Waterville, NY 13480 | Gas Operator | Dec 2024 |
| 175 | Emerald Oil Company, L.L.C. | E. Rochester, NY 14445 | Oil & Gas Operator | Jan 2025 |
| 176 | Emke, Diane M. | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 177 | Emkey Resources, LLC | | Gas Operator | Dec 2015 |
| 178 | Empire Energies | Sheridan, NY 14135 | Gas Operator | Dec 2024 |
| 179 | Empire Energy E & P, LLC | Mayville, NY 14757 | Oil & Gas Operator | Mar 2019 |
| 180 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 181 | Epsilon Energy USA, Inc. | Houston, TX 77002 | Gas Operator | Dec 2012 |
| 182 | Estate Of James Robert Wells | West Henrietta, NY 14586 | Oil Operator | Dec 2024 |
| 183 | Estate Of Joan D. Ansbrow | Rochester, NY 14612 | Gas Operator | Dec 2024 |
| 184 | Estate Of Robert J. Burick | Fredonia, NY 14063 | Gas Operator | Dec 2024 |
| 185 | Estate Of Timothy D. Coleman | Kane, PA 16735 | Gas Operator | Dec 2024 |
| 186 | Evans-Brant (Lake Shore) Central School District | Angola, NY 14006 | Gas Operator | Dec 2024 |
| 187 | Everman, Henry G. | Dansville, NY 14437 | Gas Operator | Dec 2024 |
| 188 | Exchange Oil & Gas Inc | Cuba, NY 14727-9760 | Oil & Gas Operator | Dec 2008 |
| 189 | F & G Exploration, LLC | Ada, MI 49301 | Gas Operator | Dec 2024 |
| 190 | Fairway Resources, Inc. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2024 |
| 191 | Falconer Central School District | Falconer, NY 14733 | Gas Operator | Dec 2020 |
| 192 | Falkner, Donald E. | Cassadaga, NY 14718 | Gas Operator | Dec 2024 |
| 193 | Farley, Thomas | Perry, NY 14530 | Gas Operator | Dec 2024 |
| 194 | Farrar, William A. III & William H. | Dewittville, NY 14728 | Gas Operator | Dec 2024 |
| 195 | Feinen, Richard C. | Forestville, NY 14062 | Gas Operator | Dec 2024 |
| 196 | Field Service, Inc. | West Seneca, NY 14206 | Gas Operator | Dec 2024 |
| 197 | Fitzpatrick, Stephen | Angola, NY 14006 | Gas Operator | Dec 2024 |
| 198 | Flatiron Exploration LLC | Olean, NY 14760 | Oil & Gas Operator | Dec 2024 |
| 199 | Ford Gum & Machine Co., Inc. | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 200 | Ford, Cregg | Auburn, NY 13021 | Gas Operator | Dec 2024 |