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