| 5201 | Rhoads Mark Operations | Ponca City, OK 74604 | Oil & Gas Operator | May 2006 |
| 5202 | Rhodes-Fielding Corporation | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2024 |
| 5203 | Ric Petroleum, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2003 |
| 5204 | Rice Michael Lee | Beggs, OK 74421-2977 | Oil Operator | Jul 2024 |
| 5205 | Rice Oil Co | Hobbs, NM 88240 | Oil & Gas Operator | Dec 2020 |
| 5206 | Rice Patricia Dba Rice Oil | Duncan, OK 73533-1888 | Oil Operator | Jan 2021 |
| 5207 | Richard C Sullins Credit Shelter Trust | Perry, OK 73077-3201 | Gas Operator | Nov 2024 |
| 5208 | Richard Charles J | | Oil & Gas Operator | May 1996 |
| 5209 | Richard W Thompson Inc | Plano, TX 75075 | Oil & Gas Operator | Jul 2019 |
| 5210 | Richardson Lloyd | | Oil & Gas Operator | Oct 2014 |
| 5211 | Richardson Oil Company | San Antonio, TX 78216 | Oil & Gas Operator | Aug 2003 |
| 5212 | Richardson WM S | Duncan, OK 73533 | Oil Operator | Jun 2013 |
| 5213 | Richardson, Bud II | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 5214 | Richart Oil Company Inc | Oklahoma City, OK 73154-0631 | Oil & Gas Operator | Aug 1995 |
| 5215 | Richland Energy Corporation | Tulsa, OK 74103-4441 | Oil Operator | Jul 1995 |
| 5216 | Richland Resources Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2025 |
| 5217 | Rick Pulliam Oil & Gas Inc | Bristow, OK 74010 | Oil & Gas Operator | Jan 2025 |
| 5218 | Ricks Consulting LLC | Copan, OK 74022 | Oil Operator | Jan 2025 |
| 5219 | Ricks Expl Acquisition Corp | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2004 |
| 5220 | Ricks Expl Acquisition LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2013 |
| 5221 | Ricks Exploration Co | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 5222 | Rico Oil Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 5223 | Riddle William T | Haskell, OK 74436-1353 | Oil & Gas Operator | Feb 2014 |
| 5224 | Ridge Petroleum Inc. | Tyler, TX 75701 | Oil & Gas Operator | Apr 2025 |
| 5225 | Rietz John T & Co Inc | | Oil & Gas Operator | Mar 1992 |
| 5226 | Rif Raf Inc | Norman, OK 73069 | Oil Operator | May 1999 |
| 5227 | Rife Oil Properties Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2025 |
| 5228 | Rig Petroleum, LLC | Spearman, TX 79081 | Oil & Gas Operator | Apr 2025 |
| 5229 | Riggins Energy Inc. | Vernon, TX 76385 | Oil & Gas Operator | Jul 2004 |
| 5230 | Riley Deborah R | Nowata, OK 74048 | Oil Operator | Dec 2024 |
| 5231 | Riley Exploration Operating Co LLC | Blanchard, OK 73010-8024 | Gas Operator | Jun 2017 |
| 5232 | Riley Lee Roy | Chickasha, OK 73018-9306 | Oil & Gas Operator | May 2006 |
| 5233 | Rimrock Gas Company | Weatherford, OK 73096 | Oil & Gas Operator | May 2008 |
| 5234 | Rimrock Resource Operating LLC | Tulsa, OK 74103-4462 | Oil & Gas Operator | Jan 2025 |
| 5235 | Ringwood Gathering Co | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 2025 |
| 5236 | Rio Blanco Operating LLC | Victoria, TX 77904 | Oil & Gas Operator | Jan 2025 |
| 5237 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 5238 | Rio Petroleum, Inc. | Amarillo, TX 79102 | Oil & Gas Operator | Apr 2025 |
| 5239 | Rio VIsta Operating LLC | Eufaula, OK 74432-0789 | Gas Operator | Jan 2025 |
| 5240 | Rising Star Energy, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Aug 2006 |
| 5241 | Rivendell Group LLC | Pebble Beach, CA 93953-1479 | Oil Operator | Sep 2018 |
| 5242 | River City Resources, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Nov 1997 |
| 5243 | River Rock Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
| 5244 | River Valley Oil LLC | Konawa, OK 74849 | Oil Operator | Feb 2025 |
| 5245 | Riverfront Exploration LLC | Fort Smith, AR 72901 | Gas Operator | Jan 2025 |
| 5246 | Riverstone Energy LLC | Seminole, OK 74868 | Oil & Gas Operator | Feb 2025 |
| 5247 | Rives Owen H | Holdenville, OK 74848-0913 | Oil & Gas Operator | Nov 2000 |
| 5248 | Riviera Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2025 |
| 5249 | Rixleben Jeffrey | West Chicago, IL 60186-0978 | Oil Operator | Feb 2016 |
| 5250 | Rixleben Thomas B Estate | Ada, OK 74820 | Oil & Gas Operator | Mar 2014 |
| 5251 | RJ Williams Oil & Gas LLC | Ardmore, OK 73401 | Oil & Gas Operator | Feb 2025 |
| 5252 | Rja Energy LLC | Norman, OK 73069-8224 | Oil & Gas Operator | Feb 2025 |
| 5253 | Rki Exploration & Production LLC | Tulsa, OK 74172 | Oil & Gas Operator | Apr 2025 |
| 5254 | RKK Production Company | Mustang, OK 73064 | Oil & Gas Operator | Feb 2025 |
| 5255 | RKR Exploration Inc | Seminole, OK 74868 | Oil & Gas Operator | Jan 2025 |
| 5256 | RL&B Energy LLC | Wichita Falls, TX 76230 | Oil & Gas Operator | Jan 2025 |
| 5257 | RLB Investments LLC | Holdenville, OK 74848-9421 | Oil Operator | Jul 2017 |
| 5258 | RM Oil & Gas Co | Pawhuska, OK 74056 | Oil Operator | Jul 1999 |
| 5259 | RMS Monte Christo, LLC | Snowmass VLG., CO 81615 | Oil & Gas Operator | Mar 2023 |
| 5260 | Roadrunner Energy, Inc. | Tulsa, OK 74120 | Oil & Gas Operator | Mar 2015 |
| 5261 | Roan Resources LLC | Tulsa, OK 74103-3729 | Oil & Gas Operator | Apr 2024 |
| 5262 | Robbins Thomas D & Charlene A Revocable Trust | Plano, TX 75093-7471 | Oil Operator | Jul 2018 |
| 5263 | Roberson David A | Ada, OK 74821-0008 | Oil & Gas Operator | Jul 2010 |
| 5264 | Roberson Oil Company | Houston, TX 77046 | Oil & Gas Operator | Feb 2025 |
| 5265 | Roberson, Joe | Vernon, TX 76385 | Oil & Gas Operator | Feb 2015 |
| 5266 | Roberts & Murphy, Inc. | Shreveport, LA 71137 | Oil & Gas Operator | Apr 2016 |
| 5267 | Roberts Herman | Henderson, NV 89014 | Oil Operator | Jul 2023 |
| 5268 | Roberts Zetau J Fisk | Moore, OK 73160 | Oil & Gas Operator | Sep 1993 |
| 5269 | Robertson Jay Estate | Tulsa, OK 74127-3029 | Oil & Gas Operator | Jul 2013 |
| 5270 | Robertson Johnie J | Okmulgee, OK 74447-8765 | Oil & Gas Operator | Jan 2025 |
| 5271 | Robertson Wayne H | Elkhart, KS 67590 | Oil Operator | Dec 2012 |
| 5272 | Robinowitz Oil Company | Tulsa, OK 74136-1429 | Oil & Gas Operator | Feb 2023 |
| 5273 | Robinson Brothers Drilling Co | | Oil & Gas Operator | Jul 2002 |
| 5274 | Robinson Gary | Wynona, OK 74084 | Oil Operator | Dec 2024 |
| 5275 | Robinson Oil Co. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 5276 | Robinson Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Aug 2012 |
| 5277 | Robinson Tracy D | Duncan, OK 73534 | Oil Operator | Oct 2018 |
| 5278 | Roblyn Oil Inc | Allen, OK 74825-6933 | Oil & Gas Operator | Nov 2024 |
| 5279 | Robson & Shults Prod Corp | Mannford, OK 74044 | Oil & Gas Operator | Jun 1995 |
| 5280 | Robson Petroleum Company | Tulsa, OK 74104 | Oil & Gas Operator | Jan 1995 |
| 5281 | Robson Resources Inc | Tulsa, OK 74104 | Oil & Gas Operator | May 1998 |
| 5282 | Rock Creek Energy Co | Ada, OK 74820-5725 | Oil Operator | Jul 2022 |
| 5283 | Rock Creek Resources LLC | Englewood, CO 80112 | Oil & Gas Operator | Dec 2021 |
| 5284 | Rock Oil Company | Broken Arrow, OK 74014-6106 | Oil & Gas Operator | Jan 2025 |
| 5285 | Rockbridge Petroleum LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 2009 |
| 5286 | Rocket Energy Corp | Muskogee, OK 74402-1665 | Oil & Gas Operator | Dec 2003 |
| 5287 | Rocket Oil Company | Duncan, OK 73534 | Oil & Gas Operator | Apr 2015 |
| 5288 | Rockford CBM LLC | Tulsa, OK 74103-4335 | Oil & Gas Operator | Jan 2013 |
| 5289 | Rockford Energy Partners III,LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2012 |
| 5290 | Rockin S Field Service LLC | Stigler, OK 74462 | Gas Operator | Jan 2025 |
| 5291 | Rockland Oil Company | Addison, TX 75001 | Oil & Gas Operator | Jan 2025 |
| 5292 | Rockwall Marketing Corporation | Benbrook, TX 76126 | Oil & Gas Operator | Dec 2007 |
| 5293 | Rockwell Drilling Company | New York, NY 10013 | Oil & Gas Operator | Dec 2005 |
| 5294 | Rockwell Energy Corporation | Tulsa, OK 74105 | Oil & Gas Operator | Apr 2014 |
| 5295 | Rocky Roads Operating LLC | Tulsa, OK 74103-4048 | Oil & Gas Operator | Feb 2025 |
| 5296 | Rocky Top Energy LLC | Bartlesville, OK 74003 | Oil & Gas Operator | Sep 2024 |
| 5297 | Rodgers Donald E Jr | Ripley, OK 74062 | Oil & Gas Operator | Mar 2011 |
| 5298 | Rodman George Inc | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 1992 |
| 5299 | Rodman Petroleum Corp. | Odessa, TX 79768 | Oil & Gas Operator | Jul 2023 |
| 5300 | Roe Oil Company | Cushing, OK 74023-0086 | Oil & Gas Operator | Jun 2024 |