| 201 | Place, Steve | El Dorado, KS 67042 | Oil Operator | Dec 2019 |
| 202 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 203 | Plains Oil & Gas | Cushing, OK 74023-4819 | Oil & Gas Operator | Jan 2019 |
| 204 | Plains Oil Compa | | Oil & Gas Operator | Aug 1988 |
| 205 | Plains Petroleum | | Gas Operator | Dec 1996 |
| 206 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 207 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
| 208 | Plainsco, LTD. | Denver, CO 80203 | Oil & Gas Operator | Jan 2002 |
| 209 | Plano Petroleum | | Oil & Gas Operator | Dec 1994 |
| 210 | Plano Petroleum Corporation | McKinney, TX 75070 | Oil & Gas Operator | Sep 2025 |
| 211 | Plateau Operating Corporation | Nashville, TN 37205 | Gas Operator | Sep 2025 |
| 212 | Platte Valley Oi | | Oil Operator | Jul 1987 |
| 213 | Platte Valley Oil Co Inc | Ralston, NE 68127 | Oil Operator | Sep 2025 |
| 214 | Plum Creek Energy, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Sep 2025 |
| 215 | Poe Servicing Inc | Oberlin, KS 67749 | Oil Operator | Oct 2019 |
| 216 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 217 | Pohlman Oil LLC | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 218 | Pollok Energy LLC | Tulsa, OK 74159 | Oil & Gas Operator | Dec 2025 |
| 219 | Ponderosa Witching, LLC | Waco, TX 76705 | Oil Operator | Sep 2025 |
| 220 | Poor Boy Corporation | Ellinwood, KS 67526 | Oil Operator | Sep 2025 |
| 221 | Popp Operating, Inc. | Hoisington, KS 67544 | Oil Operator | Sep 2025 |
| 222 | Porter Oil | Peabody, KS 66866 | Oil Operator | Oct 2000 |
| 223 | Post & Mastin Well Service, Inc. | Garden City, KS 67846 | Oil Operator | May 2016 |
| 224 | Post Petroleum C | | Gas Operator | Nov 1991 |
| 225 | Post Petroleum Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2013 |
| 226 | Post Rock Gas, Inc. | Luray, KS 67699 | Oil & Gas Operator | Jun 2003 |
| 227 | Postrock Midcontinent Production LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Nov 2025 |
| 228 | Potato Creek, L.L.C. | Edna, KS 67342 | Oil & Gas Operator | Sep 2025 |
| 229 | Poverty Knob Production, LLC | Osawatomie, KS 66064 | Oil Operator | Sep 2025 |
| 230 | Powell Petroleum Resources, LLC | Houston, TX 77054 | Gas Operator | Jun 2005 |
| 231 | Powell, Wayne D. & Barbara | Sedan, KS 67361 | Oil Operator | Sep 1996 |
| 232 | Powers, Dixon D. | Great Bend, KS 67530 | Oil & Gas Operator | Oct 1995 |
| 233 | PR Operating, LP (A Texas Limited Partnership) | Frisco, TX 75034 | Gas Operator | Apr 2012 |
| 234 | Prado Petroleum | | Oil Operator | Mar 1982 |
| 235 | Prafford Gas System, LC | Wichita, KS 67201 | Gas Operator | May 2012 |
| 236 | Prairie Energy C | | Oil Operator | Oct 1987 |
| 237 | Prairie Energy LC | Oklahoma City, OK 73118 | Gas Operator | Jun 2014 |
| 238 | Prairie Gas Operating, LLC | Tulsa, OK 74101 | Gas Operator | Dec 2019 |
| 239 | Prairie Methane Gas Producers LLC | Dewey, OK 74029 | Oil Operator | Dec 2009 |
| 240 | Prairie Oil Inco | | Oil Operator | Jan 1986 |
| 241 | Prairie Oil Partners | Hays, KS 67601 | Oil Operator | May 1999 |
| 242 | Prairie Oil, LLC | Louisburg, KS 66053 | Oil Operator | Sep 2025 |
| 243 | Prairie Resources Inc | Hays, KS 67601 | Oil & Gas Operator | Sep 2009 |
| 244 | Prairie State Pe | | Oil Operator | Jul 1994 |
| 245 | Prairie Wolf Operating, LLC | Stilwell, OK 74960 | Oil & Gas Operator | Sep 2025 |
| 246 | Prater Oil & Gas Operations, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Sep 2025 |
| 247 | Prater Ronald Ru | | Gas Operator | Mar 1989 |
| 248 | Pratt Well Servi | | Oil & Gas Operator | Jul 1996 |
| 249 | Pratt Well Service, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Sep 2025 |
| 250 | Pratt, Don E. | Hays, KS 67601 | Oil Operator | Dec 1999 |
| 251 | Premier Oil & Exploration Inc | Hutchinson, KS 67502 | Oil & Gas Operator | Sep 2025 |
| 252 | Premier Petroleu | | Oil Operator | Dec 1988 |
| 253 | Premier Petroleum, Inc. | Wichita, KS 67201 | Oil & Gas Operator | Dec 2009 |
| 254 | Premiere Corporation | Wellington, KS 67152 | Oil Operator | Nov 2010 |
| 255 | Pres-Lo Incorpor | | Oil & Gas Operator | Aug 1993 |
| 256 | Presco Western LLC | Houston, TX 77046 | Oil & Gas Operator | Sep 2025 |
| 257 | Presidio Petroleum LLC | Canadian, TX 79014 | Oil & Gas Operator | Feb 2026 |
| 258 | Presley Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Nov 2025 |
| 259 | Price Robert R O | | Oil Operator | Apr 1995 |
| 260 | Price, Ernest, Jr. | Atlanta, KS 67008 | Oil Operator | Jun 1995 |
| 261 | Price, Robert R. Operating, Inc. | Tulsa, OK 74147 | Oil Operator | May 1996 |
| 262 | Pride Energy Company, A General Partnership | Tulsa, OK 74170 | Oil & Gas Operator | Aug 2021 |
| 263 | Prime Operating Company | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 264 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 265 | Princ, Frank | Wilson, KS 67490 | Oil Operator | Apr 2025 |
| 266 | Priority Oil & Gas LLC | Lakewood, CO 80227 | Gas Operator | Dec 2019 |
| 267 | Prisum Ventures | | Oil & Gas Operator | Oct 1995 |
| 268 | Pritz Maurice G | | Oil Operator | Oct 1990 |
| 269 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 270 | Pro3 Sulfur Solutions, Inc. | Russell, KS 67665 | Oil Operator | Aug 2025 |
| 271 | Producers Equipm | | Oil Operator | Dec 1996 |
| 272 | Producers Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 273 | Production Compa | | Oil Operator | Apr 1985 |
| 274 | Production Drill | | Oil Operator | Oct 1994 |
| 275 | Production Drilling, Inc. | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 276 | Production Incor | | Gas Operator | Feb 1987 |
| 277 | Production Maintenance Service | | Oil & Gas Operator | Jun 2020 |
| 278 | Production Manag | | Oil Operator | Dec 1986 |
| 279 | Production Team | | Oil & Gas Operator | Sep 1991 |
| 280 | Prolific Resources LLC | Wichita, KS 67208 | Oil & Gas Operator | Sep 2025 |
| 281 | Prospect Oil & G | | Oil Operator | Feb 1996 |
| 282 | Prospect Oil & Gas Corp | Russell, KS 67665 | Oil Operator | Sep 2025 |
| 283 | Prospective Inv. & Trading Co., LTD., The | Tulsa, OK 74170 | Oil Operator | Dec 2019 |
| 284 | Prospective Invs | | Oil & Gas Operator | Jun 1994 |
| 285 | Protege Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2018 |
| 286 | Provecho Partners | Hays, KS 67601 | Oil Operator | Apr 2005 |
| 287 | Providence Energ | | Oil & Gas Operator | Jul 1988 |
| 288 | Provine, B.R. | Wichita, KS 67226 | Oil Operator | Apr 2010 |
| 289 | Pryor Oil Compan | | Oil & Gas Operator | Nov 1994 |
| 290 | Pryor VIctor W Jr | Holdenville, OK 74848 | Oil & Gas Operator | Apr 2017 |
| 291 | PT Oil LLC | Osage City, KS 66523 | Oil & Gas Operator | Jul 2025 |
| 292 | Ptarmigan Inc | Leavenworth, KS 66048 | Oil Operator | Nov 2009 |
| 293 | Pup Oil Company | | Oil Operator | Dec 1996 |
| 294 | Pure Energy Prod | | Oil Operator | Sep 1992 |
| 295 | Purkeypile, Doyle | Eureka, KS 67045 | Oil Operator | Oct 1995 |
| 296 | Pyle Petroleum, Inc. | Tyler, TX 75703 | Oil & Gas Operator | Apr 2025 |
| 297 | Pyramid Corporat | | Oil & Gas Operator | Aug 1995 |
| 298 | Pyramid Oil & Ga | | Oil & Gas Operator | Sep 1987 |
| 299 | Pyro Energy Corp | Kingwood, TX 77339-2102 | Oil & Gas Operator | Mar 1998 |
| 300 | Pywell Venture A | | Oil Operator | Apr 1988 |