| 301 | R. J. LIGHTY | Grant County, KS | Gas Property | Apr 2025 |
| 302 | R. K. WINGATE 17 | Wilson County, KS | Gas Property | Apr 2025 |
| 303 | R. L. DAVIS | Stevens County, KS | Oil & Gas Property | May 2021 |
| 304 | R. L. GREEN | Kearny County, KS | Gas Property | Apr 2025 |
| 305 | R. L. HALL | Haskell County, KS | Gas Property | Apr 2025 |
| 306 | R. L. LEWIS | Perry County, OH | Oil & Gas Property | Dec 1985 |
| 307 | R. L. SCHAEFER | Gonzales County, TX | Oil & Gas Property | Jun 2025 |
| 308 | R. L.WALKER | Finney County, KS | Oil Property | Oct 2021 |
| 309 | R. LECK | Neosho County, KS | Gas Property | Jan 2025 |
| 310 | R. LOWE | Morgan County, OH | Oil & Gas Property | Dec 2017 |
| 311 | R. M. BURNHAM | Seward County, KS | Oil & Gas Property | Apr 2025 |
| 312 | R. MARTIN DAUGHERTY | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 313 | R. MAY | Atascosa County, TX | Oil & Gas Property | Jun 2025 |
| 314 | R. MAY B-GUAJILLO UNIT | Atascosa County, TX | Oil & Gas Property | Jun 2025 |
| 315 | R. MCATEE | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 316 | R. N. BYERS UNIT 23 | Wheeler County, TX | Oil & Gas Property | Dec 2016 |
| 317 | R. N. RICHARDSON | Stephens County, TX | Oil & Gas Property | Jun 2025 |
| 318 | R. PARKS | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 319 | R. PETERSON A - DCCO 2 (SA) | Denton County, TX | Gas Property | Jun 2025 |
| 320 | R. R. SHINER | Ness County, KS | Oil Property | Apr 2025 |
| 321 | R. R. U. 1 | Santa Barbara County, CA | Oil & Gas Property | Jul 2025 |
| 322 | R. R. U. 2 | Santa Barbara County, CA | Oil & Gas Property | Jul 2025 |
| 323 | R. R. U. 3 | Santa Barbara County, CA | Oil & Gas Property | Jul 2025 |
| 324 | R. R. U. 4 | Santa Barbara County, CA | Oil & Gas Property | Jul 2025 |
| 325 | R. R. U. 5 | Santa Barbara County, CA | Oil & Gas Property | Jul 2025 |
| 326 | R. R. U. 6 | Santa Barbara County, CA | Oil & Gas Property | Jul 2025 |
| 327 | R. R. U. 7 | Santa Barbara County, CA | Oil & Gas Property | Jul 2025 |
| 328 | R. R. U. 8 | Santa Barbara County, CA | Oil & Gas Property | Jul 2025 |
| 329 | R. R. U. 9 | Santa Barbara County, CA | Oil & Gas Property | Jul 2025 |
| 330 | R. R. WILSON GAS UNIT | Grant County, KS | Gas Property | Apr 2025 |
| 331 | R. RUHMANN GAS UNIT 2-E | Karnes County, TX | Oil & Gas Property | Jun 2025 |
| 332 | R. RUMMER | Washington County, OH | Oil & Gas Property | Dec 2016 |
| 333 | R. S. PHILLIPS | Morton County, KS | Gas Property | Apr 2025 |
| 334 | R. S. SHUPE | Clark County, KS | Gas Property | Apr 2025 |
| 335 | R. SLUSS | Butler County, KS | Oil Property | Apr 2025 |
| 336 | R. STEVENSON | Grant County, KS | Gas Property | Apr 2025 |
| 337 | R. STRAUSS ETAL # 1 | Muskingum County, OH | Oil & Gas Property | Dec 2014 |
| 338 | R. SULLIVAN GAS UNIT | Robertson County, TX | Oil & Gas Property | Jun 2025 |
| 339 | R. TIMM | Stanton County, KS | Gas Property | Apr 2025 |
| 340 | R. V. JONES | Rooks County, KS | Oil Property | Oct 2014 |
| 341 | R. V. KING GU B | Montgomery County, TX | Oil & Gas Property | Oct 2019 |
| 342 | R. VLASAK | Washington County, OH | Oil & Gas Property | Dec 2000 |
| 343 | R. W. LINSNER | Barton County, KS | Oil Property | Mar 2025 |
| 344 | R. WASHINGTON UNIT | Gonzales County, TX | Oil & Gas Property | Jun 2025 |
| 345 | R. WHITAKER | Gaines County, TX | Oil Property | May 2025 |
| 346 | R. WILLIAMS | Carter County, OK | Oil & Gas Property | May 2025 |
| 347 | R. WILLIAMS | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 348 | R. WILSON | Decatur County, KS | Oil Property | Apr 2019 |
| 349 | R. ZWEYGARDT | Cheyenne County, KS | Gas Property | Apr 2025 |
| 350 | R.&A. BARRETT | Armstrong County, PA | Gas Property | Dec 2024 |
| 351 | R.&S. SMITH ET AL | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 352 | R.A.B. DAVIDSON | Upton County, TX | Oil & Gas Property | Jun 2025 |
| 353 | R.B. -AB- COWDEN | Ector County, TX | Oil & Gas Property | Jun 2025 |
| 354 | R.B. CLARY | Grimes County, TX | Oil & Gas Property | Jun 2025 |
| 355 | R.C MULBER | Harper County, OK | Oil & Gas Property | May 2025 |
| 356 | R.D. BENNETT GU 1H | Rusk County, TX | Oil & Gas Property | Jun 2025 |
| 357 | R.D. NIEMANN | Fayette County, TX | Oil & Gas Property | Jun 2025 |
| 358 | R.D. REEDY | Contra Costa County, CA | Oil & Gas Property | Sep 2016 |
| 359 | R.E. CAMP | Bourbon County, KS | Oil Property | Oct 1984 |
| 360 | R.E. HICKMAN | Coke County, TX | Oil & Gas Property | Mar 2020 |
| 361 | R.E. LOPER | Escambia County, AL | Oil & Gas Property | Oct 2020 |
| 362 | R.E. SMITH | Fresno County, CA | Oil & Gas Property | Mar 1990 |
| 363 | R.E.P. 4 | Kern County, CA | Oil & Gas Property | Jan 1992 |
| 364 | R.F. BUTNER | Coke County, TX | Oil Property | Feb 2025 |
| 365 | R.FOESTER-C.HUGHES UNIT SA | Karnes County, TX | Oil & Gas Property | Jun 2025 |
| 366 | R.H. ANDERSON | Kern County, CA | Oil & Gas Property | Jul 2025 |
| 367 | R.H. PICKENS ET AL | Frio County, TX | Oil & Gas Property | Jun 2025 |
| 368 | R.H.D. 1 | Kern County, CA | Oil & Gas Property | Sep 2015 |
| 369 | R.H.D. 2 | Kern County, CA | Oil Property | Mar 2004 |
| 370 | R.H.D. 3 | Kern County, CA | Oil Property | Apr 2000 |
| 371 | R.H.D. 4 | Kern County, CA | Oil Property | Jan 2000 |
| 372 | R.H.F./MORROW/UNIT | Ochiltree County, TX | Oil & Gas Property | Jun 2025 |
| 373 | R.H.L. BRACKENBURY | Tehama County, CA | Gas Property | Apr 2011 |
| 374 | R.J. NEWMAN | Mobile County, AL | Oil & Gas Property | Jul 2009 |
| 375 | R.J. NEWMAN | Mobile County, AL | Oil & Gas Property | Sep 2012 |
| 376 | R.K. DEFORD A | Andrews County, TX | Oil & Gas Property | Jun 2025 |
| 377 | R.K. MORRIS 1-29-17XH | Grady County, OK | Oil & Gas Property | May 2025 |
| 378 | R.L. NIX EST | Lafayette County, AR | Oil Property | Dec 1970 |
| 379 | R.L. TITCH (SA) 1 | Wise County, TX | Oil & Gas Property | Jun 2025 |
| 380 | R.L.P. INVESTMENTS | Coleman County, TX | Oil & Gas Property | Jun 2025 |
| 381 | R.L.PARKER | Adams County, MS | Oil & Gas Property | Sep 1999 |
| 382 | R.M. JONES | Athens County, OH | Oil & Gas Property | Dec 1986 |
| 383 | R.M. ROGERS | Stephens County, TX | Oil & Gas Property | Jun 2025 |
| 384 | R.P. PINEGAR | Stanton County, KS | Gas Property | Apr 2025 |
| 385 | R.S. ALLEN | Toole County, MT | Oil Property | Sep 1996 |
| 386 | R.W. LINSENBIGLER | Clearfield County, PA | Gas Property | Dec 2024 |
| 387 | R.W. THOMPSON | Austin County, TX | Oil & Gas Property | Jun 2025 |
| 388 | RA HAFER | Crawford County, PA | Gas Property | Dec 2024 |
| 389 | RAAB | Allegan County, MI | Oil Property | Mar 2025 |
| 390 | RAAB | Fairfield County, OH | Oil & Gas Property | Dec 2019 |
| 391 | RAAB | Custer County, OK | Oil & Gas Property | May 2025 |
| 392 | RAAB-FOJTIK (SA) UNIT | Lavaca County, TX | Oil & Gas Property | Jun 2025 |
| 393 | RAAM | Johnson County, TX | Oil & Gas Property | Jun 2025 |
| 394 | RAB 2 | Dimmit County, TX | Oil & Gas Property | Jun 2025 |
| 395 | RAB 22 | Midland County, TX | Oil & Gas Property | Jun 2025 |
| 396 | RAB 3 | Dimmit County, TX | Oil & Gas Property | Jun 2025 |
| 397 | RAB 34 | Upton County, TX | Oil & Gas Property | Jun 2025 |
| 398 | RAB DAVIDSON | Midland County, TX | Oil & Gas Property | Jun 2025 |
| 399 | RABAGO BIRK | Bradford County, PA | Gas Property | Jun 2025 |
| 400 | RABB BESSIE | Guadalupe County, TX | Oil & Gas Property | Apr 2025 |