| 201 | Radley, R. R. | Sourlake, TX 77659 | Oil & Gas Operator | Mar 2008 |
| 202 | Radley, Terry R., Operator | Sourlake, TX 77659 | Oil & Gas Operator | Apr 2006 |
| 203 | Radtke, D.E. & Associates, Inc. | Midland, TX 79710 | Oil & Gas Operator | May 2004 |
| 204 | Radzewicz & Assoc-R.C.Bertolet | | Oil Operator | Oct 1985 |
| 205 | Radzewicz Expl. & DRLG. Corp. | | Oil & Gas Operator | Mar 2011 |
| 206 | Radzewicz Operating Corp. | | Oil & Gas Operator | Oct 2017 |
| 207 | Rael Resources LLC | Cowley, WY 82420 | Oil Operator | Feb 2024 |
| 208 | Raelee Oil LLC | Plainville, KS 67663 | Oil Operator | Jul 2021 |
| 209 | Raf Oil Company | Oklahoma City, OK 73120-1944 | Oil & Gas Operator | Jul 2013 |
| 210 | Rafter H Operating LLC | El Reno, OK 73036-2714 | Oil & Gas Operator | Jan 2024 |
| 211 | Rafter L Resources, LLC | Stockdale, TX 78160 | Oil Operator | Apr 2024 |
| 212 | Ragars Oil & Gas Co. | Austin, TX 78716 | Oil & Gas Operator | Apr 2024 |
| 213 | Ragnar Exploration, LLC | | Oil & Gas Operator | Feb 2024 |
| 214 | Ragsco LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 215 | Rahm Oil Company | Enid, OK 73703 | Oil & Gas Operator | Mar 2011 |
| 216 | Raida, Junior V. | Neodesha, KS 66757 | Oil Operator | Jul 2013 |
| 217 | Raider Oil & Gas Company | MC Camey, TX 79752 | Oil & Gas Operator | Apr 2024 |
| 218 | Railroad Commission Of Texas | Austin, TX 78701 | Oil Operator | Dec 2004 |
| 219 | Rainbo Service Company | Oklahoma City, OK 73123-2177 | Oil & Gas Operator | Jan 2024 |
| 220 | Rainbow End Ranch | Okemah, OK 74859-9733 | Oil & Gas Operator | Apr 2020 |
| 221 | Rainbow Energy Corporation | Midland, TX 79701 | Oil & Gas Operator | Nov 2002 |
| 222 | Rainbow Energy Inc | | Oil Operator | Jan 2024 |
| 223 | Rainbow Oil & Gas | Pawhuska, OK 74056-0056 | Oil Operator | Oct 2010 |
| 224 | Rainbow Oil & Gas LLC | Coolville, OH 45723 | Oil & Gas Operator | May 2023 |
| 225 | Rainbow Oil And Gas Inc | | Oil & Gas Operator | Jun 2016 |
| 226 | Rainbow Oil Company | | Oil & Gas Operator | Aug 1999 |
| 227 | Rainbow Oilwell Service Inc | Depew, OK 74028-0087 | Oil & Gas Operator | Mar 2023 |
| 228 | Rainbow Producing Company | Dallas, TX 75204 | Oil & Gas Operator | Aug 2003 |
| 229 | Rainbow Resources, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2007 |
| 230 | Rainbow Seven Oil & Gas, Inc. | Ranger, TX 76470 | Oil & Gas Operator | Apr 2024 |
| 231 | Rainer Energy, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2024 |
| 232 | Rainey, Wayne | Sweetwater, TX 79556 | Oil & Gas Operator | Feb 2019 |
| 233 | Rainmaker Oil & Gas Corp | Oklahoma City, OK 73112-8883 | Oil & Gas Operator | Apr 2015 |
| 234 | Rains & Williams | | Oil & Gas Operator | Nov 1995 |
| 235 | Rains And Williamson Oil Co. | Wichita, KS 67277 | Oil & Gas Operator | Dec 2023 |
| 236 | Rainwater A L | Okmulgee, OK 74447 | Oil & Gas Operator | Jan 2013 |
| 237 | Rainwater, John | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 238 | Raisa II Operating LLC | | Oil & Gas Operator | Mar 2017 |
| 239 | Raizen Oil Company | Velma, OK 73091 | Oil & Gas Operator | Feb 2016 |
| 240 | Raizen Oil LLC | Duncan, OK 73533-4657 | Oil & Gas Operator | Nov 2003 |
| 241 | Rajoil Inc. | Vernon, TX 76384 | Oil & Gas Operator | Aug 2003 |
| 242 | Raker Resources LLC | Houston, TX 77042 | Oil & Gas Operator | Apr 2024 |
| 243 | Rakestraw Bros., L.L.C | El Dorado, KS 67042 | Oil & Gas Operator | Dec 2019 |
| 244 | Ralph C Bruton | Hobbs, NM 88240 | Oil & Gas Operator | Dec 2007 |
| 245 | Ralph Dawson | | Oil Operator | Nov 2005 |
| 246 | Ralph E Shorts Drilling | Polk, OH 44866 | Oil & Gas Operator | Dec 2022 |
| 247 | Ralph E Williamson | San Antonio, TX 78239 | Oil & Gas Operator | Dec 2013 |
| 248 | Ralph L Albright Drilling | Reno, NV 89511-7627 | Oil & Gas Operator | Dec 1991 |
| 249 | Ralph L. Leaderbrand | | Oil & Gas Operator | Dec 1996 |
| 250 | Ralph, C D | Owensboro, KY 42301 | Oil Operator | Dec 2004 |
| 251 | Ralph, Terry D | Utica, KY 42376 | Oil Operator | Dec 2022 |
| 252 | Ralyn Corp. | Pleasanton, TX 78064 | Oil & Gas Operator | Apr 2024 |
| 253 | Ram Asset Management Co | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2015 |
| 254 | Ram Energy LLC | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2024 |
| 255 | Ram Energy LLC (Ok) | | Oil & Gas Operator | Feb 2018 |
| 256 | Ram Management Company, Inc. | | Oil & Gas Operator | Sep 1984 |
| 257 | Ram Oil & Gas | Blackwell, OK 74631 | Oil & Gas Operator | May 2013 |
| 258 | Ram Oil And Gas, Inc. | Walsh, CO 81090 | Oil Operator | Apr 2024 |
| 259 | Ram Operating Company, Inc. | Houston, TX 77002 | Oil & Gas Operator | Sep 2012 |
| 260 | Ram Operating Inc. | Browns, IL 62818 | Oil & Gas Operator | Aug 2008 |
| 261 | Ram Petroleum Co | | Oil & Gas Operator | Sep 1983 |
| 262 | Ram Petroleum Corporation | Wichita, KS 67202 | Gas Operator | Feb 2023 |
| 263 | Ram Petroleum, LLC | Tylertown, MS 39667 | Oil & Gas Operator | Jan 2024 |
| 264 | Ram Service - Mi | | Oil Operator | Sep 1994 |
| 265 | Rama Operating C | | Oil & Gas Operator | Dec 1996 |
| 266 | Rama Operating Co., Inc. | Stafford, KS 67578 | Oil & Gas Operator | Jan 2024 |
| 267 | Ramah Oil Company LLC | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2007 |
| 268 | Rambler Oil Co | Oklahoma City, OK 73154 | Oil & Gas Operator | Jan 1999 |
| 269 | Ramco Drilling S | | Oil & Gas Operator | Dec 1992 |
| 270 | Ramco Energy Corporation | FT. Lauderdale, FL 33312 | Oil & Gas Operator | Dec 2008 |
| 271 | Ramco Exploration, Inc. | | Oil & Gas Operator | Feb 1998 |
| 272 | Ramco Oil & Gas Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2006 |
| 273 | Ramco Oil Company | Pawhuska, OK 74056 | Oil & Gas Operator | Feb 2012 |
| 274 | Ramco Operating Company | Tulsa, OK 74135 | Oil & Gas Operator | Jan 1998 |
| 275 | Ramco, Inc. | | Oil & Gas Operator | May 1992 |
| 276 | Ramey L E SR | Mounds, OK 74047 | Oil Operator | Jan 2000 |
| 277 | Ramey Oil Corporation | Kiefer, OK 74041-0699 | Oil & Gas Operator | Mar 2021 |
| 278 | Ramey Sharp N Glenn SD Unit | Tulsa, OK 74120 | Oil Operator | Nov 1998 |
| 279 | Ramey Wayne | Mounds, OK 74047-0520 | Oil & Gas Operator | Dec 2023 |
| 280 | Ramhead Petroleum Inc | Seminole, OK 74818-0848 | Oil & Gas Operator | Aug 2008 |
| 281 | Ramhorn Energy, LLC | Green River, WY 82935 | Oil & Gas Operator | Jan 2024 |
| 282 | Ramoil Company | Winfield, KS 67156 | Oil & Gas Operator | May 1987 |
| 283 | Rampage Energy Inc | Bristow, OK 74010-6415 | Oil & Gas Operator | Apr 2020 |
| 284 | Rampage Exploration, Inc. | Austin, TX 78737 | Oil & Gas Operator | Apr 2024 |
| 285 | Rampart Energy Company | | Oil & Gas Operator | Dec 2022 |
| 286 | Rampart Petroleum, Incorporated | Buffalo Gap, TX 79508 | Oil & Gas Operator | Jan 2009 |
| 287 | Rampart Resources Company, LLC | Tulsa, OK 74136 | Gas Operator | Jan 2021 |
| 288 | Ramrod Oil And Gas (U.S.A.) Inc. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Apr 2024 |
| 289 | Ramrod Oil Co., A General Partnership | Iola, KS 66749 | Oil Operator | Nov 2001 |
| 290 | Ramrod Prod. Co., Inc. | | Oil Operator | Dec 2023 |
| 291 | Ramsey Associated Petroleum, Inc. | Glenville, WV 26351-0090 | Oil & Gas Operator | Dec 2021 |
| 292 | Ramsey Engineering Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 1993 |
| 293 | Ramsey George H Estate | Ardmore, OK 73401-3644 | Oil & Gas Operator | Nov 2013 |
| 294 | Ramsey Nichols Operating Company LLC | | Oil & Gas Operator | Jan 2024 |
| 295 | Ramsey Production Company, LLC | Austin, TX 78766 | Oil & Gas Operator | Jan 2017 |
| 296 | Ramsey Property Management LLC | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Dec 2023 |
| 297 | Ramsey Property MGMT Inc | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Mar 2019 |
| 298 | Ramsey, Sid | Arlington, TX 76010 | Oil & Gas Operator | Aug 2012 |
| 299 | Ramshorn Resources, LLC | Wichita, KS 67202 | Oil & Gas Operator | Dec 2023 |
| 300 | Ramsower Minerals Corporation | Beeville, TX 78104 | Oil & Gas Operator | Sep 2013 |