| 2301 | RIO VIEJO | Kern County, CA | Oil & Gas Property | May 2026 |
| 2302 | RIO VISTA S | Sacramento County, CA | Oil & Gas Property | Apr 2026 |
| 2303 | RIPLEY | Kern County, CA | Oil & Gas Property | Jul 2016 |
| 2304 | RIPPERDAN | Fresno County, CA | Oil & Gas Property | May 2026 |
| 2305 | RITTER C | San Luis Obispo County, CA | Oil Property | Aug 2015 |
| 2306 | RIVER GARDEN FARMS | Yolo County, CA | Gas Property | Feb 2001 |
| 2307 | RIVER GARDEN FARMS | Yolo County, CA | Gas Property | Nov 1997 |
| 2308 | RIVER ISLANDS LAND CO | Sacramento County, CA | Gas Property | Feb 1990 |
| 2309 | ROARING RIVER 20 | Solano County, CA | Oil & Gas Property | Dec 2020 |
| 2310 | ROBERTS | Kern County, CA | Oil & Gas Property | Dec 2020 |
| 2311 | ROBERTS FEE | Kern County, CA | Oil & Gas Property | Dec 1987 |
| 2312 | ROBERTSON | Ventura County, CA | Oil & Gas Property | May 2026 |
| 2313 | ROBERTSON | Kern County, CA | Oil & Gas Property | Jul 2024 |
| 2314 | ROBINSON | Los Angeles County, CA | Oil & Gas Property | Feb 2020 |
| 2315 | ROBINSON | Kern County, CA | Oil Property | May 2026 |
| 2316 | ROC-KCL G | Kern County, CA | Oil & Gas Property | May 2026 |
| 2317 | ROCK | San Luis Obispo County, CA | Oil & Gas Property | May 2026 |
| 2318 | ROCO | Kern County, CA | Oil & Gas Property | Mar 2026 |
| 2319 | RODGERS | Kern County, CA | Oil Property | Dec 2018 |
| 2320 | RODGERS-JONES | Kern County, CA | Oil Property | Oct 1985 |
| 2321 | RODUNER | Madera County, CA | Gas Property | Jun 2005 |
| 2322 | ROOSA | Los Angeles County, CA | Oil & Gas Property | May 2026 |
| 2323 | ROSECRANS | Los Angeles County, CA | Oil & Gas Property | May 2026 |
| 2324 | ROSEDALE OIL UNIT NO | Kern County, CA | Oil & Gas Property | Feb 2026 |
| 2325 | ROSEDALE RANCH | Kern County, CA | Oil & Gas Property | Dec 2025 |
| 2326 | ROSEDALE-STEVENS COMMUNITY | Kern County, CA | Oil & Gas Property | Feb 2025 |
| 2327 | ROSENBERG | Monterey County, CA | Oil & Gas Property | May 2026 |
| 2328 | ROSINA | Kern County, CA | Oil Property | Dec 2020 |
| 2329 | ROSS | Kern County, CA | Oil & Gas Property | Mar 1991 |
| 2330 | ROSSI | Ventura County, CA | Oil & Gas Property | May 2026 |
| 2331 | ROTH 1 | Yolo County, CA | Gas Property | May 2010 |
| 2332 | ROWDETT | Kern County, CA | Oil Property | Jan 2020 |
| 2333 | ROWLAND | Los Angeles County, CA | Oil & Gas Property | May 2003 |
| 2334 | RUBEL | Los Angeles County, CA | Oil & Gas Property | May 2026 |
| 2335 | RUBY SMITHWICK | Kern County, CA | Oil & Gas Property | May 2026 |
| 2336 | RUDNICK | Kern County, CA | Oil & Gas Property | Apr 2026 |
| 2337 | RUDOLPH | San Benito County, CA | Oil Property | May 2026 |
| 2338 | RUSSELL | Yolo County, CA | Gas Property | Dec 1986 |
| 2339 | RUSSELL | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 2340 | RUSSELL | Yolo County, CA | Gas Property | Mar 2004 |
| 2341 | RVGU | Contra Costa County, CA | Oil & Gas Property | May 2026 |
| 2342 | RX UNIT 2 | Sutter County, CA | Gas Property | May 2026 |
| 2343 | RYAN BROWN | Kern County, CA | Oil Property | Apr 2026 |
| 2344 | RYER | Solano County, CA | Oil & Gas Property | Feb 2024 |
| 2345 | RYNNE-FISHER | Los Angeles County, CA | Oil & Gas Property | May 2013 |
| 2346 | S-R-D B | Kern County, CA | Oil & Gas Property | Nov 2012 |
| 2347 | S. E. BOWERBANK | Kern County, CA | Gas Property | Jul 1994 |
| 2348 | S.C.U. 1 | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 2349 | S.C.U. 2 | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 2350 | S.C.U. 3 | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 2351 | S.C.U. 4 | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 2352 | S.C.U. 5 | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 2353 | S.C.U. 6 | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 2354 | S.C.U. 7 | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 2355 | S.C.U. 8 | Santa Barbara County, CA | Oil & Gas Property | Dec 2025 |
| 2356 | S.P. 31 | Kern County, CA | Oil Property | Mar 1993 |
| 2357 | S.P. 33 | Kern County, CA | Oil Property | Jun 2025 |
| 2358 | S.P. 33 | Kern County, CA | Oil Property | Dec 2012 |
| 2359 | S.P. LEASE 64 | Kern County, CA | Oil Property | Jul 1988 |
| 2360 | S.P.S. 1 | Ventura County, CA | Oil & Gas Property | May 2026 |
| 2361 | S.P.S. 2 | Ventura County, CA | Oil & Gas Property | May 2026 |
| 2362 | S.P.S. 3 | Ventura County, CA | Oil & Gas Property | May 2026 |
| 2363 | S.P.S. 4 | Ventura County, CA | Oil & Gas Property | May 2026 |
| 2364 | S.P.S. 5 | Ventura County, CA | Oil & Gas Property | May 2026 |
| 2365 | SA & FL | Fresno County, CA | Oil Property | Jan 2002 |
| 2366 | SAC. 1 | Kern County, CA | Oil Property | Apr 2026 |
| 2367 | SAC. 2 | Kern County, CA | Oil Property | Apr 2026 |
| 2368 | SAC. 3 | Kern County, CA | Oil Property | Apr 2026 |
| 2369 | SAC. 4 | Kern County, CA | Oil Property | Apr 2026 |
| 2370 | SAC. 5 | Kern County, CA | Oil Property | Apr 2026 |
| 2371 | SAC. 6 | Kern County, CA | Oil Property | Jul 2024 |
| 2372 | SAC. 7 | Kern County, CA | Oil Property | Oct 2024 |
| 2373 | SAC. T.O | Kern County, CA | Oil Property | Dec 1978 |
| 2374 | SACHREITER | Colusa County, CA | Gas Property | Sep 1989 |
| 2375 | SACRAMENTO | Sacramento County, CA | Gas Property | Apr 2011 |
| 2376 | SADD | Los Angeles County, CA | Oil & Gas Property | May 2026 |
| 2377 | SADIE ANDREWS | Kern County, CA | Oil Property | May 2026 |
| 2378 | SAFE FEE | Kern County, CA | Oil & Gas Property | May 2026 |
| 2379 | SAGE UNIT | Tehama County, CA | Gas Property | May 2026 |
| 2380 | SALISBURY | Kern County, CA | Gas Property | Jul 1985 |
| 2381 | SALISBURY | Kern County, CA | Oil Property | May 2026 |
| 2382 | SALT CREEK | Kern County, CA | Oil & Gas Property | Dec 2025 |
| 2383 | SALYER 6 | Kings County, CA | Oil & Gas Property | Oct 2015 |
| 2384 | SAMPLE | Fresno County, CA | Oil Property | Mar 1985 |
| 2385 | SAMPLINER | Kern County, CA | Oil & Gas Property | Mar 2026 |
| 2386 | SAN EMI | Kern County, CA | Oil & Gas Property | Jul 2006 |
| 2387 | SAN FRANCISCO-MCKITTRICK | Kern County, CA | Oil Property | Jul 2016 |
| 2388 | SAN GABRIEL | Los Angeles County, CA | Oil & Gas Property | May 2026 |
| 2389 | SAN JOAQUIN | Kern County, CA | Oil Property | Aug 1988 |
| 2390 | SAN JOAQUIN | Kern County, CA | Oil & Gas Property | Apr 2026 |
| 2391 | SAN VICENTE S | Los Angeles County, CA | Oil & Gas Property | Dec 2025 |
| 2392 | SANBORN | Sutter County, CA | Gas Property | Dec 2020 |
| 2393 | SANBORN | Sutter County, CA | Gas Property | May 2026 |
| 2394 | SANCHEZ | Solano County, CA | Gas Property | Jan 1980 |
| 2395 | SANGER | Fresno County, CA | Oil & Gas Property | Dec 2025 |
| 2396 | SANGUINETTI | Kern County, CA | Oil & Gas Property | Apr 2026 |
| 2397 | SANSINENA | Los Angeles County, CA | Oil & Gas Property | May 2026 |
| 2398 | SANTA | Kern County, CA | Oil & Gas Property | May 2026 |
| 2399 | SANTA CLARA AVENUE UNIT | Ventura County, CA | Oil & Gas Property | May 2026 |
| 2400 | SANTA FE | Kern County, CA | Oil & Gas Property | Apr 2026 |