| 401 | POPPY FEDERAL 2658 12-17H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 402 | PORKY CARDA 9-16 H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 403 | PORKY STATE 16-14H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 404 | PORKY-ANTONE 9-14-H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 405 | PORKY-IRIGOIN 31-14H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 406 | POTTS 1-11H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 407 | PREDATOR | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 408 | PREVOST | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 409 | PREVOST | Richland County, MT | Oil & Gas Property | Nov 2015 |
| 410 | PREVOST-MONDALIN HSU | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 411 | PREWITT 21-25 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 412 | PUTNAM | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 413 | PYTHON | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 414 | QUALLEY | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 415 | RALSTON | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 416 | RASMUSSEN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 417 | RAU 1 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 418 | RAU 2 | Richland County, MT | Oil & Gas Property | Mar 1995 |
| 419 | RAU 31X-23 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 420 | RAU 41X-15 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 421 | RDU 3 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 422 | REIMANN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 423 | REVERE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 424 | RICHARD 21X-29 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 425 | RICHLAND STATE 11X31 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 426 | RITA | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 427 | RKT CARDA 7-6 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 428 | ROBERTS | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 429 | ROBERTS 34X-8 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 430 | ROCKY 42X-13 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 431 | ROCKY-BAHLS 30-14-H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 432 | ROCKY-ROSEMARY 29-14H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 433 | ROGNAS | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 434 | ROGNAS-BARBARA HSU | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 435 | ROWIN 17 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 436 | RPI COTTONWOOD 4-16HZ | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 437 | RUFFATTO | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 438 | SALSBURY | Richland County, MT | Oil & Gas Property | Nov 2021 |
| 439 | SALSBURY | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 440 | SAWYER 1 | Richland County, MT | Oil & Gas Property | Aug 2015 |
| 441 | SCHEETZ | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 442 | SCHMIDT | Richland County, MT | Oil & Gas Property | Sep 1992 |
| 443 | SCHMITZ | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 444 | SHANNON 2-35 1H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 445 | SHAW 44X-13D | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 446 | SHEETZ | Richland County, MT | Oil & Gas Property | Aug 1992 |
| 447 | SHERLOCK 13X-24 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 448 | SHERMAN 1 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 449 | SHERRI 2658 43-9H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 450 | SHEVLIN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 451 | SHIRLEY 13-24 1H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 452 | SHIRLEY 24-13-12 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 453 | SIMARD | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 454 | SIMARD FARMS | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 455 | SIMMERS 4 21-30-1H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 456 | SIMONSEN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 457 | SIMONSEN 44X-5 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 458 | SKOV 31-2 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 459 | SLOCUM | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 460 | SNEDIGAR STATE 44X-36 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 461 | SNOW | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 462 | SNYDLEY | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 463 | SNYDLEY-KID | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 464 | SONJA 1-34H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 465 | SONNY 24X-16BXC | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 466 | SORENSEN | Richland County, MT | Oil & Gas Property | Oct 2015 |
| 467 | SORENSEN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 468 | SORENSON B 1 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 469 | SORTEBERG 27-34 1H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 470 | STACI | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 471 | STACI-LINNEA 4 HSU | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 472 | STAMPEDE STATE 14X-36 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 473 | STATE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 474 | STATE | Richland County, MT | Oil & Gas Property | Dec 2016 |
| 475 | STATE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 476 | STATE | Richland County, MT | Oil & Gas Property | Dec 1998 |
| 477 | STATE 21-28 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 478 | STATE 21X-16 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 479 | STATE 36 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 480 | STATE 4-16H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 481 | STATE 44X-36 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 482 | STATE BLACKJACK | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 483 | STATE HARDY 31-16H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 484 | STEINBEISSER | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 485 | STEINBEISSER | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 486 | STEINBEISSER | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 487 | STEINBEISSER 11X-18 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 488 | STEPPLER | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 489 | STEPPLER STATE 34X-16 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 490 | STILT FEDERAL 2658 42-22H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 491 | STINGER 1-28H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 492 | STOCKADE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 493 | STOCKADE-GUNDERSON 2-7-H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 494 | STONEY BUTTE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 495 | STORM | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 496 | STORVIK | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 497 | STRASHEIM | Richland County, MT | Oil & Gas Property | Oct 2024 |
| 498 | SUNDANCE KID | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 499 | SUNDHEIM | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 500 | SUNDHEIM | Richland County, MT | Oil & Gas Property | Jan 2025 |