| 101 | Baker Oil & Gas | St Louisville, OH 43071 | Oil & Gas Operator | Sep 2014 |
| 102 | Baker Oil Co | Leitchfield, KY 42754 | Oil & Gas Operator | Dec 2023 |
| 103 | Baker Roscoe | Killbuck, OH 44637 | Oil & Gas Operator | Dec 2000 |
| 104 | Bakerwell Inc | Killbuck, OH 44637 | Oil & Gas Operator | Dec 2025 |
| 105 | Ball Resources Inc | Alliance, OH 44601 | Oil & Gas Operator | Dec 2001 |
| 106 | Bancequity Petroleum Corporation | Macedonia, OH 44056 | Oil & Gas Operator | Dec 2024 |
| 107 | Bands Company Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2014 |
| 108 | Bands Group LLC | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2023 |
| 109 | Bar Val | Wadsworth, OH 44281 | Oil & Gas Operator | Dec 1998 |
| 110 | Bar-G Oil & Gas | New Concord, OH 43762 | Oil & Gas Operator | Dec 2016 |
| 111 | Barb Oil Co | Gambier, OH 43022 | Oil & Gas Operator | Dec 1986 |
| 112 | Barclay Petroleum Inc | Bremen, OH 43107 | Oil & Gas Operator | Dec 2017 |
| 113 | Bass Energy Co Inc | Richfield, OH 44286 | Oil & Gas Operator | Dec 2024 |
| 114 | Bateman Frank | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1995 |
| 115 | Bates Lew Jr | Lewis Center, OH 43035 | Oil & Gas Operator | Dec 2002 |
| 116 | Bates Oil & Gas Inc | Worthington, OH 43085 | Oil & Gas Operator | Dec 1992 |
| 117 | BCP Energy Inc | Cleveland, OH 44115 | Oil & Gas Operator | Dec 1993 |
| 118 | Beardmore Oil & Gas Co | Vincent, OH 45784 | Oil & Gas Operator | Dec 2024 |
| 119 | Beaver Oil Company Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2020 |
| 120 | Beck Energy Corporation | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2024 |
| 121 | Beck Oil & Gas Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2024 |
| 122 | Befco Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 1993 |
| 123 | Beisser Agnes Gas & Oil | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1996 |
| 124 | Belden & Blake Corporation | North Canton, OH 44720 | Oil & Gas Operator | Dec 2016 |
| 125 | Belden Brick Co LLC, The | Sugar Creek, OH 44681 | Oil & Gas Operator | Dec 2025 |
| 126 | Bell Drilling & Prod Co | Logan, OH 43138 | Oil & Gas Operator | Dec 1997 |
| 127 | Bell John E & Sons | Bremen, OH 43107 | Oil & Gas Operator | Dec 1998 |
| 128 | Bell Oil | Junction City, OH 43748 | Oil & Gas Operator | Dec 2024 |
| 129 | Belvoir Energy Inc. | University Heights, OH 44118-3818 | Oil & Gas Operator | Dec 2017 |
| 130 | Benatty Corp., The | Cambridge, OH 43725-1002 | Oil & Gas Operator | Dec 1996 |
| 131 | Benjamin Smeltzer Company | Newport, OH 45768 | Oil & Gas Operator | Dec 2024 |
| 132 | Berea Oil & Gas Corp | Buffalo, NY 14202 | Oil & Gas Operator | Dec 2002 |
| 133 | Berresford Enterprises In | Akron, OH 44311 | Oil & Gas Operator | Dec 1994 |
| 134 | Berry James E | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1996 |
| 135 | Bertram Paul G Jr | Marietta, OH 45750 | Oil & Gas Operator | Dec 1992 |
| 136 | Berwell Energy Inc | Columbus, OH 43221 | Oil & Gas Operator | Dec 1987 |
| 137 | Bethel Oil & Gas Co | Marietta, OH 45750-6710 | Oil & Gas Operator | Dec 2019 |
| 138 | Bethel Oil And Gas LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2025 |
| 139 | Beucler Brothers Inc | Dellroy, OH 44620 | Oil & Gas Operator | Dec 2020 |
| 140 | Beveridge Patricia C | Woodsfield, OH 43793 | Oil & Gas Operator | Dec 2025 |
| 141 | Bi Joe Development Inc | Columbus, OH 43220 | Oil & Gas Operator | Dec 2024 |
| 142 | Big Sky Energy Inc | New Concord, OH 43762 | Oil & Gas Operator | Dec 2024 |
| 143 | Biggs Jerrold L | Newark, OH 43055 | Oil & Gas Operator | Dec 2025 |
| 144 | BKK Prospecting LTD | Warren, OH 44481 | Oil & Gas Operator | Dec 1991 |
| 145 | Black Mountain Petroleum | Mogadore, OH 44260 | Oil & Gas Operator | Dec 2025 |
| 146 | Blair Bill Inc | New Springfield, OH 44443 | Oil & Gas Operator | Dec 1994 |
| 147 | Blauser Energy Corporation | Marietta, OH 45750-6964 | Oil & Gas Operator | Dec 2018 |
| 148 | Blaze Oil & Gas Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 149 | Blu Oil Inc | Fairlawn, OH 44334 | Oil & Gas Operator | Dec 2024 |
| 150 | Blubaugh David | Danville, OH 43014 | Oil & Gas Operator | Dec 2007 |
| 151 | Bobcat Well & Pipeline LLC | Canfield, OH 44406 | Oil & Gas Operator | Dec 2021 |
| 152 | Bocor Holdings LLC | North Canton, OH 44720 | Oil & Gas Operator | Dec 2025 |
| 153 | Bossow Oil MGMT Inc | Garrettsville, OH 44231 | Oil & Gas Operator | Dec 1997 |
| 154 | Bottom Line Prod Inc | Cleveland, OH 44106 | Oil & Gas Operator | Dec 1990 |
| 155 | Bower Oil & Gas LLC | Uhrichsville, OH 44683 | Oil & Gas Operator | Dec 2023 |
| 156 | Bowers Rodger V | New Lexington, OH 43764 | Oil & Gas Operator | Dec 1997 |
| 157 | Bowling Frank L & Jane C | Circleville, OH 43113 | Oil Operator | Dec 2024 |
| 158 | Boyas Excavating Inc | Valley VIew, OH 44125-4247 | Oil & Gas Operator | Dec 2005 |
| 159 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |
| 160 | Bradco Energy Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2018 |
| 161 | Braden Development Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1990 |
| 162 | Brady Resources, Inc. | Bridgeport, WV 26330-1320 | Oil & Gas Operator | Dec 2008 |
| 163 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2026 |
| 164 | Branney Operating Co Inc | Uniontown, OH 44685 | Oil & Gas Operator | Dec 1995 |
| 165 | Brasel R Gene | Middleport, OH 45760 | Oil & Gas Operator | Dec 2015 |
| 166 | Bratton Energy | Danville, OH 43014 | Oil & Gas Operator | Dec 2025 |
| 167 | Briarwood Energy Co | Akron, OH 43334 | Oil & Gas Operator | Dec 1996 |
| 168 | Bridge Oil Development | San Antonio, TX 78209-1181 | Oil & Gas Operator | Dec 1986 |
| 169 | Bridgestone/Firestone Inc | Akron, OH 44317 | Oil & Gas Operator | Dec 2022 |
| 170 | Brilex LLC | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2025 |
| 171 | Briswell Co | Warren, OH 44484 | Oil & Gas Operator | Dec 2024 |
| 172 | Broad Street Energy Company | Columbus, OH 43204 | Oil & Gas Operator | Dec 2014 |
| 173 | Broad Street Serv LLC | Columbus, OH 43204 | Oil & Gas Operator | Dec 2014 |
| 174 | Brock Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Jun 1986 |
| 175 | Bromley Harold J | Thornville, OH 43076 | Oil Operator | Dec 2025 |
| 176 | Brook Valley Oil & Gas Inc | Dayton, OH 45419 | Oil & Gas Operator | Dec 2014 |
| 177 | Broughton Brothers Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 2010 |
| 178 | Broughton Foods Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 2010 |
| 179 | Brown Gregory L Co Inc | Houston, TX 77056 | Oil & Gas Operator | Dec 1991 |
| 180 | Brown Phillip H Jr. Corporatio | Lowell, OH 45744 | Oil & Gas Operator | Dec 2002 |
| 181 | Broy Limited Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2017 |
| 182 | Buckeye Crude Expl Inc | Columbus, OH 43216-2671 | Oil & Gas Operator | Dec 1987 |
| 183 | Buckeye Energy Resources | Zanesville, OH 43702-1190 | Oil & Gas Operator | Dec 1995 |
| 184 | Buckeye Franklin Co | Zoarville, OH 44656 | Oil & Gas Operator | Dec 1996 |
| 185 | Buckeye Oil Producing Co. | Wooster, OH 44691-129 | Oil & Gas Operator | Dec 2025 |
| 186 | Bullitt Energy LLC | Marietta, OH 45750-5317 | Oil & Gas Operator | Dec 2024 |
| 187 | Burdette Robert S | Pomeroy, OH 45769 | Oil Operator | Dec 2024 |
| 188 | Burke Michael | Coolsville, OH 45723 | Oil & Gas Operator | Dec 2024 |
| 189 | Burlington Res.Oil&Gas Co.LP | Midland, TX 79710-1810 | Gas Operator | Dec 2007 |
| 190 | Burns Willard & Frances | Corning, OH 43730 | Oil & Gas Operator | Dec 2020 |
| 191 | Busted Knuckle Oil & Gas LLC | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2025 |
| 192 | Butcher Energy Corp | Newark, OH 43055 | Oil & Gas Operator | Dec 2014 |
| 193 | Butler Larry | Bladensburg, OH 43005 | Oil & Gas Operator | Dec 2019 |
| 194 | C & C Producing LLC | Creston, OH 44217 | Oil & Gas Operator | Dec 2025 |
| 195 | C & D Oil & Gas LLC | Dorset, OH 44032 | Oil & Gas Operator | Dec 2024 |
| 196 | C & N Oil & Gas Company | Albany, OH 45710 | Oil & Gas Operator | Dec 2012 |
| 197 | C & S Energy Corp | Liverpool, NY 13088 | Oil & Gas Operator | Dec 1986 |
| 198 | C & T Energy Of East Canton Inc | East Canton, OH 44730 | Oil & Gas Operator | Dec 2025 |
| 199 | C & V Oil And Gas | Marietta, OH 45750 | Oil & Gas Operator | Dec 2011 |
| 200 | C G O Inc | Wheeling, WV 26003 | Oil & Gas Operator | Dec 2024 |