| 26101 | Roil Mineral & Land Co. | Dallas, TX 75379 | Oil & Gas Operator | Feb 2026 |
| 26102 | Roil Production Company | Houston, TX 77056 | Gas Operator | Sep 2005 |
| 26103 | Rojo Burro Petroleo & Gas | Kilgore, TX 75662 | Oil & Gas Operator | Aug 2007 |
| 26104 | Rojo Grande LLC | Artesia, NM 882110248 | Oil Operator | Apr 2008 |
| 26105 | Rojo Oil Company | McLean, TX 79057 | Oil & Gas Operator | Feb 2026 |
| 26106 | Roka Management Inc | Oklahoma City, OK 73139 | Oil & Gas Operator | Nov 2025 |
| 26107 | Roka Resources Inc | Oklahoma City, OK 73139 | Oil & Gas Operator | Sep 2025 |
| 26108 | Roland Carlson LLC | Austin, TX 78705 | Gas Operator | Feb 2026 |
| 26109 | Roland Oil And Gas | Cut Bank, MT 59427 | Oil Operator | Feb 2023 |
| 26110 | Roland Oil Company | Charlotte, TX 78011 | Oil & Gas Operator | Feb 2026 |
| 26111 | Rolfe & Rolfe Oi | | Oil Operator | May 1988 |
| 26112 | Rollar Oil Co., Inc. | | Oil & Gas Operator | Jul 1999 |
| 26113 | Rollert Co., Inc., The | Luling, TX 78648 | Oil & Gas Operator | Nov 2000 |
| 26114 | Rolling Meadows Oil & Gas Development, LLC | Centerville, KS 66014 | Oil Operator | Sep 2025 |
| 26115 | Rollo Resources, LLC | Granbury, TX 76049 | Gas Operator | Feb 2026 |
| 26116 | Roma Oil & Gas | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1999 |
| 26117 | Roma Oil & Gas LLC | Woodsfield, OH 43793 | Oil & Gas Operator | Dec 2024 |
| 26118 | Roma Oil And Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2026 |
| 26119 | Romac Oil Company, Inc. | Throckmorton, TX 76483 | Oil & Gas Operator | Feb 2026 |
| 26120 | Romack Production Company | Granville, OH 43023 | Oil Operator | Mar 2018 |
| 26121 | Roman Well Services Inc | Lakeville, OH 44638 | Oil & Gas Operator | Dec 2023 |
| 26122 | Romara Energy Inc. | | Oil & Gas Operator | Dec 2017 |
| 26123 | Romax Corporation | Ardmore, OK 73401-8882 | Oil & Gas Operator | Feb 2022 |
| 26124 | Romaxsco Exploration Co., Inc. | | Oil & Gas Operator | Aug 1993 |
| 26125 | Romco | Muenster, TX 76252 | Oil & Gas Operator | Mar 2015 |
| 26126 | Rome Oil, LLC | Lakewood, CO 80232 | Oil Operator | Aug 2025 |
| 26127 | Romine Oil & Gas LTD | Shawnee, OK 74802-3425 | Oil & Gas Operator | Jan 2013 |
| 26128 | Romine Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 26129 | Romines & Warner | Pampa, TX 79065 | Oil & Gas Operator | Jan 2002 |
| 26130 | Romines Operating Group | Pampa, TX 79066 | Oil & Gas Operator | Nov 2022 |
| 26131 | Rominger, R.L. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jan 2015 |
| 26132 | Romo Corp | Farmington, NM 87499 | Gas Operator | Dec 1993 |
| 26133 | Roms Co., Inc. | | Oil Operator | Jun 1983 |
| 26134 | Ron & Dan'S Oil LTD | Barnsdall, OK 74002-0628 | Oil & Gas Operator | May 2011 |
| 26135 | Ron Brooks Corp | | Oil Operator | Sep 1995 |
| 26136 | Ron Knott & Associates,Inc. | | Oil & Gas Operator | Aug 1989 |
| 26137 | Ron'S Oil Oper I | | Oil Operator | Nov 1994 |
| 26138 | Ron'S Oil Operations Inc | Penokee, KS 67659 | Oil Operator | Dec 2018 |
| 26139 | Ron-Bob Oil LLC | Neosho Falls, KS 66758 | Oil Operator | Sep 2025 |
| 26140 | Ronadero Company Inc | Roswell, NM BAD ADDR | Oil & Gas Operator | Dec 1996 |
| 26141 | Ronald A Gibson & Assoc Inc | Avon Lake, OH 44012 | Oil & Gas Operator | Dec 2024 |
| 26142 | Ronald E. Hall | | Oil Operator | Nov 1991 |
| 26143 | Ronald J Nelson | Hobbs, NM 88240 | Oil & Gas Operator | Feb 2006 |
| 26144 | Ronald L Hicks | Aztec, NM 87410 | Oil Operator | Sep 2009 |
| 26145 | Ronald L Nick | Lucinda, PA 16235-3006 | Gas Operator | Dec 2023 |
| 26146 | Ronald M. Sannes | | Oil & Gas Operator | Oct 2016 |
| 26147 | Ronald Russ Prater, Inc. | Eastborough, KS 67207 | Gas Operator | Nov 2024 |
| 26148 | Ronan Company | Springfield, MO 65704 | Oil & Gas Operator | Aug 2013 |
| 26149 | Ronco Energy Resources Inc | Norman, OK 73072 | Oil & Gas Operator | Apr 2015 |
| 26150 | Ronco Incorporat | | Oil Operator | Sep 1988 |
| 26151 | Ronde Operating, LLC | Houston, TX 77006 | Oil & Gas Operator | Mar 2021 |
| 26152 | Rongey Ira E | Sapulpa, OK 74066-9317 | Oil & Gas Operator | May 2013 |
| 26153 | Rongey Oil | Jenks, OK 74037-3621 | Oil & Gas Operator | Jan 2013 |
| 26154 | Ronmar Engineering & Expl Inc | Ada, OK 74820-1402 | Oil Operator | Aug 2013 |
| 26155 | Ronning Gas And Oil LLC | Mesa, AZ 85203 | Oil & Gas Operator | Feb 2026 |
| 26156 | Ronny N. Davis | | Oil Operator | Jan 2025 |
| 26157 | Roof Carl | Indiana, PA 15701 | Gas Operator | Dec 2025 |
| 26158 | Rookstool, William A. | Edmond, OK 73034 | Gas Operator | Jan 1999 |
| 26159 | Roome Exploration Company | Bartlett, TX 76511 | Oil & Gas Operator | Mar 2008 |
| 26160 | Roome Oil Co. | Bartlett, TX 76511 | Oil & Gas Operator | Feb 2026 |
| 26161 | Roon Energy, Inc. | Boones Mill, VA 24065 | Oil Operator | Feb 2026 |
| 26162 | Roosevelt Operating Co. | | Oil Operator | Sep 2023 |
| 26163 | Roosevelt Resources LP | Dallas, TX 75225 | Oil & Gas Operator | Feb 2026 |
| 26164 | Rooster Petroleum, LLC | | Oil & Gas Operator | Feb 2011 |
| 26165 | Rooster Production, LLC | Oil City, LA 71061 | Oil Operator | Jan 2025 |
| 26166 | Roosth & Genecov Production Co. | Tyler, TX 75710 | Oil & Gas Operator | Aug 2003 |
| 26167 | Roosth Production Co. | Tyler, TX 75711 | Oil & Gas Operator | Feb 2026 |
| 26168 | Ropa Exploration Corp. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2011 |
| 26169 | Ropar Operating Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 26170 | Roppolo Petro/Sun Explor& Prod | | Oil & Gas Operator | Sep 1988 |
| 26171 | Roppolo Petroleum Co. | | Oil & Gas Operator | Jan 2000 |
| 26172 | Rorico Oil Company | Argyle, TX 76226 | Oil & Gas Operator | Feb 2026 |
| 26173 | Roring Jr Roy W | Duncan, OK 73533-3048 | Oil & Gas Operator | Aug 2022 |
| 26174 | Roring Roy W | Ardmore, OK 73401 | Oil & Gas Operator | Dec 1998 |
| 26175 | Roring Steven A | Ratliff City, OK 73481-0206 | Oil Operator | Feb 2018 |
| 26176 | Rosa Petroleum | Evansville, WY 82636 | Oil Operator | Dec 1995 |
| 26177 | Rosamond Drilling Co., Inc. | | Gas Operator | Nov 1984 |
| 26178 | Rosbottom Petroleum | | Oil & Gas Operator | Aug 1988 |
| 26179 | Rosbottom Production Corp | Shreveport, LA 71134 | Oil & Gas Operator | Dec 2017 |
| 26180 | Rosbottom-Caruthers Prodgcoinc | | Gas Operator | Nov 1990 |
| 26181 | Rosbottom/Roach | Shreveport, LA 71101 | Oil & Gas Operator | May 1994 |
| 26182 | Roscoe Gas & Oil Co | Dover, OH 44622 | Oil & Gas Operator | Dec 1991 |
| 26183 | Rose City Resources, LLC | Tyler, TX 75703 | Oil & Gas Operator | Feb 2026 |
| 26184 | Rose Dan And Bill | Henryetta, OK 74437 | Oil & Gas Operator | Nov 2025 |
| 26185 | Rose Exploration, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Feb 2002 |
| 26186 | Rose Katherine Stone | | Oil & Gas Operator | Dec 2025 |
| 26187 | Rose Operating Company | Tulsa, OK 74101-2391 | Oil & Gas Operator | Dec 2014 |
| 26188 | Rose Pass Mines, Inc. | | Oil Operator | Oct 1982 |
| 26189 | Rose Petroleum (Us), LLC | Parker, CO 80134 | Oil & Gas Operator | Jul 2016 |
| 26190 | Rose Petroleum (Utah) LLC | Annapolis, MD 21401 | Oil & Gas Operator | Nov 2025 |
| 26191 | Rose Petroleum Corp | Oklahoma City, OK 73146 | Oil & Gas Operator | Feb 2015 |
| 26192 | Rose Rock Resources Inc | Wagoner, OK 74467-8362 | Oil & Gas Operator | Nov 2025 |
| 26193 | Rose, Verl | Spring Creek, NV 89815 | Oil & Gas Operator | Feb 2011 |
| 26194 | Roseclare Oil Co | | Oil Operator | Dec 2016 |
| 26195 | Rosehill Operating Company, LLC | Houston, TX 77084 | Oil & Gas Operator | Sep 2021 |
| 26196 | Rosekrans Janet A Dba J Oil Co | | Oil Operator | Jan 2003 |
| 26197 | Rosel Energy, Inc. | Liberal, KS 67901 | Oil & Gas Operator | Jul 2004 |
| 26198 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 26199 | Rosemain 031 LLC | | Oil & Gas Operator | Nov 2025 |
| 26200 | Rosenthal Henry & Co | | Oil Operator | Feb 1994 |