| 1201 | W K Frost Inc | Newark, OH 43055 | Oil & Gas Operator | Dec 2020 |
| 1202 | W P Brown Enterprises Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 2024 |
| 1203 | Waddy & Son Oilfield Services Inc | Dellroy, OH 44620-9762-9762 | Oil & Gas Operator | Dec 2024 |
| 1204 | Waldron David A | Wooster, OH 44691 | Oil & Gas Operator | Dec 2003 |
| 1205 | Wallick Petroleum Co | Reynoldsburg, OH 43068 | Oil & Gas Operator | Dec 1994 |
| 1206 | Warner Clifford E | Newark, OH 43055 | Oil Operator | Dec 2022 |
| 1207 | Warner George H | Pomeroy, OH 45769 | Oil & Gas Operator | Dec 2014 |
| 1208 | Warren Drilling Co | Dexter City, OH 45727 | Oil & Gas Operator | Dec 2023 |
| 1209 | Waterco Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 1210 | Watson Wayne W | Cambridge, OH 43725-3024-3024 | Oil & Gas Operator | Dec 2002 |
| 1211 | Wayne Hammond Enterprises Inc | Bolivar, OH 44612-0488-0488 | Oil & Gas Operator | Dec 2022 |
| 1212 | We Energy LLC | Columbus, OH 43229 | Oil Operator | Dec 2020 |
| 1213 | Web Oil Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2013 |
| 1214 | Weber Paul A | N Canton, OH 44720 | Oil & Gas Operator | Dec 1994 |
| 1215 | Weinsz Oil & Gas Inc | North Canton, OH 44720 | Oil & Gas Operator | Dec 2003 |
| 1216 | Weiss Drilling Inc | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2024 |
| 1217 | Welsh Hills Oil & Gas Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1999 |
| 1218 | Wenner Petroleum Corp | Englewood, CO 80111 | Oil & Gas Operator | Dec 1986 |
| 1219 | Wescor LLC | Hartville, OH 44632 | Oil & Gas Operator | Dec 2024 |
| 1220 | West William W | Gallipolis, OH 45631 | Oil & Gas Operator | Dec 2024 |
| 1221 | Western Hemisphere Group | Buffalo, NY 14218 | Oil & Gas Operator | Dec 1993 |
| 1222 | Western Reserve Exp | Perry, OH 44081 | Oil & Gas Operator | Dec 2003 |
| 1223 | Western Resources{Wva}Inc | Chantilly, VA 22022-595-595 | Oil & Gas Operator | Dec 1994 |
| 1224 | Wheeler Michael D | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 1225 | Whidbey Resources Inc | Hudson, OH 44236 | Oil & Gas Operator | Dec 2016 |
| 1226 | Whipple Run Oil & Gas Co | Grantsville, WV 26147 | Oil & Gas Operator | Dec 2006 |
| 1227 | Whitacre Enterprises Inc | Graysville, OH 45734 | Oil & Gas Operator | Dec 2021 |
| 1228 | White Energy Inc | Berlin Center, OH 44401 | Oil & Gas Operator | Dec 2016 |
| 1229 | White J P | Rock Creek, OH 44084 | Oil & Gas Operator | Dec 1989 |
| 1230 | Whited Roger | Davisville, WV 26142 | Oil & Gas Operator | Dec 2024 |
| 1231 | Whitetail Crude, Inc | Ness City, KS 67560 | Oil & Gas Operator | Jan 2025 |
| 1232 | Whitnam Oil & Gas Corp. | Glenville, WV 26351 | Oil & Gas Operator | Dec 2009 |
| 1233 | Whitney Thomas C | Danville, OH 43014 | Oil & Gas Operator | Dec 2024 |
| 1234 | Wilkes Energy Inc | Akron, OH 44308 | Oil & Gas Operator | Dec 2022 |
| 1235 | Willey George | Newark, OH 43058-572-572 | Oil & Gas Operator | Dec 2024 |
| 1236 | William S Miller Inc | Hanoverton, OH 44423 | Oil & Gas Operator | Dec 2024 |
| 1237 | Williamson Oil And Gas LLC | Lower Salem, OH 45745 | Oil & Gas Operator | Dec 2024 |
| 1238 | Wilmar Oil & Gas | Williamstown, WV 26167 | Oil & Gas Operator | Dec 2003 |
| 1239 | Wilson Energy LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 1240 | Wilson Jay - Azog Inc | Malta, OH 43758 | Oil & Gas Operator | Dec 2024 |
| 1241 | Wilson Petroleum Corp | Westerville, OH 43081 | Oil & Gas Operator | Dec 2000 |
| 1242 | Windsor Associates Inc | Fairlawn, OH 44333-4006-4006 | Oil & Gas Operator | Dec 2012 |
| 1243 | Winston Oil Co | Marietta, OH 45750-754-754 | Oil & Gas Operator | Mar 2025 |
| 1244 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 1245 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 1246 | Witlicki Richard | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2015 |
| 1247 | WM Oil & Gas Inc | Canton, OH 44721 | Oil & Gas Operator | Dec 2018 |
| 1248 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 1249 | Wolfe Oil | Bremen, OH 43107 | Oil Operator | Dec 2024 |
| 1250 | Wolford Ben & Bonnie | Frazeysburg, OH 43822 | Oil Operator | Dec 2016 |
| 1251 | Wood Charles L | Akron, OH 44320 | Oil & Gas Operator | Dec 1990 |
| 1252 | Wood, Donald E. | Independence, KS 67301 | Oil & Gas Operator | Dec 2024 |
| 1253 | Woodyard Drilling | Chesterhill, OH 43728 | Oil & Gas Operator | Dec 2016 |
| 1254 | Worthington Oil Co Inc | Worthington, OH 43085 | Oil & Gas Operator | Dec 1989 |
| 1255 | Wray-Vernau Partnership | Newark, OH 43055 | Oil & Gas Operator | Dec 1988 |
| 1256 | WRP Energy Inc | Canfield, OH 44406 | Oil & Gas Operator | Dec 2017 |
| 1257 | Wyant Exploration Co | Pomeroy, OH 45769 | Oil & Gas Operator | Dec 2024 |
| 1258 | Wynn Oil Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1998 |
| 1259 | X Stateman Services | Killbuck, OH 44637 | Oil & Gas Operator | Dec 2024 |
| 1260 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | May 2025 |
| 1261 | Yei Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 1262 | Yoder Darrell Dba Double "D" | Dayton, OH 45458 | Oil & Gas Operator | Dec 2015 |
| 1263 | Yontz James | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2018 |
| 1264 | Zenith Exploration Co Inc | Washington, PA 15301 | Oil & Gas Operator | Dec 2014 |
| 1265 | Zenith Oil & Gas Inc | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 1999 |
| 1266 | Zilkha Energy Inc | Houston, TX 77002-5223-5223 | Oil & Gas Operator | Dec 2008 |
| 1267 | Zink Petroleum Corp | Uniontown, OH 44685 | Oil & Gas Operator | Dec 1993 |
| 1268 | Zoran Oil & Gas | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2011 |
| 1269 | Zoran Oil & Gas Co | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2024 |