| 1 | R.S. ALLEN | Toole County, MT | Oil Property | Sep 1996 |
| 2 | RABBIT | Blaine County, MT | Oil & Gas Property | Mar 2023 |
| 3 | RABBIT | Blaine County, MT | Oil Property | May 2025 |
| 4 | RALPH SWENS | Glacier County, MT | Oil Property | Mar 2025 |
| 5 | RALSTON | Richland County, MT | Oil & Gas Property | May 2025 |
| 6 | RAMBERG | Blaine County, MT | Gas Property | May 2025 |
| 7 | RAMBERG | Blaine County, MT | Gas Property | May 2025 |
| 8 | RANCHOLME | Big Horn County, MT | Gas Property | Aug 2019 |
| 9 | RANCHOLME | Big Horn County, MT | Gas Property | Dec 2013 |
| 10 | RANCHOLME 2 | Big Horn County, MT | Gas Property | Aug 2019 |
| 11 | RANKIN | Toole County, MT | Gas Property | Apr 2025 |
| 12 | RASK | Daniels County, MT | Oil Property | Oct 2022 |
| 13 | RASMUSSEN | Richland County, MT | Oil & Gas Property | May 2025 |
| 14 | RAU 1 | Richland County, MT | Oil & Gas Property | May 2025 |
| 15 | RAU 2 | Richland County, MT | Oil & Gas Property | Mar 1995 |
| 16 | RAU 31X-23 | Richland County, MT | Oil & Gas Property | May 2025 |
| 17 | RAU 41X-15 | Richland County, MT | Oil & Gas Property | May 2025 |
| 18 | RAY T FEDERAL 2958 13-26H | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 19 | RAYMOND | Toole County, MT | Gas Property | Apr 2025 |
| 20 | RAYMOND | Rosebud County, MT | Oil & Gas Property | Jun 2023 |
| 21 | RDU 3 | Richland County, MT | Oil & Gas Property | Apr 2025 |
| 22 | READ | Blaine County, MT | Gas Property | May 2025 |
| 23 | REAGAN | Richland County, MT | Oil & Gas Property | May 2025 |
| 24 | REAVIS | Big Horn County, MT | Gas Property | Aug 2019 |
| 25 | RED CR | Glacier County, MT | Oil & Gas Property | May 2025 |
| 26 | RED FOX 1 | Roosevelt County, MT | Oil & Gas Property | Nov 1991 |
| 27 | REDSTONE | Valley County, MT | Oil & Gas Property | Nov 1986 |
| 28 | REEG | Toole County, MT | Oil Property | May 2025 |
| 29 | REEVES | Blaine County, MT | Gas Property | May 2025 |
| 30 | REIDT | Toole County, MT | Gas Property | Apr 2025 |
| 31 | REIMANN | Richland County, MT | Oil & Gas Property | May 2025 |
| 32 | REMINGTON | Toole County, MT | Oil Property | Feb 2025 |
| 33 | REMINGTON | Sheridan County, WY | Gas Property | Dec 2023 |
| 34 | RENEGADE 1-10H | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 35 | RESTANA | Toole County, MT | Gas Property | Jan 2024 |
| 36 | REUM | Hill County, MT | Gas Property | May 2025 |
| 37 | REVEILLE FED. 2759 14-26H | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 38 | REVERE | Richland County, MT | Oil & Gas Property | May 2025 |
| 39 | RICE | Toole County, MT | Gas Property | May 2025 |
| 40 | RICE | Teton County, MT | Oil Property | Apr 2025 |
| 41 | RICE BLUHM | Toole County, MT | Oil Property | May 2025 |
| 42 | RICE STANNARD STATE | Toole County, MT | Oil Property | Mar 2025 |
| 43 | RICE STATE | Toole County, MT | Oil Property | Mar 2025 |
| 44 | RICHARD 21X-29 | Richland County, MT | Oil & Gas Property | May 2025 |
| 45 | RICHARDSON | Sheridan County, MT | Oil & Gas Property | Nov 2017 |
| 46 | RICHARDSON 27 | Hill County, MT | Gas Property | May 2025 |
| 47 | RICHARDSON 33-37-8 | Hill County, MT | Oil Property | Jul 2023 |
| 48 | RICHLAND STATE 11X31 | Richland County, MT | Oil & Gas Property | May 2025 |
| 49 | RIDLE | Toole County, MT | Gas Property | Mar 2025 |
| 50 | RIECKHOFF | Glacier County, MT | Oil Property | Dec 2024 |
| 51 | RIMROCK-KENN | Toole County, MT | Oil Property | May 2025 |
| 52 | RING FEDERAL 2858 44-34H | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 53 | RIPLEY 1-24H | Richland County, MT | Oil & Gas Property | May 2025 |
| 54 | RISLEY 1 | Blaine County, MT | Gas Property | May 2025 |
| 55 | RITA | Richland County, MT | Oil & Gas Property | May 2025 |
| 56 | RITTENHOUSE | Toole County, MT | Gas Property | Apr 2025 |
| 57 | RIVA RIDGE | Sheridan County, MT | Oil & Gas Property | Apr 2025 |
| 58 | RKT CARDA 7-6 | Richland County, MT | Oil & Gas Property | May 2025 |
| 59 | ROBERT P<> | Toole County, MT | Gas Property | Apr 2025 |
| 60 | ROBERTS | Rosebud County, MT | Oil & Gas Property | Oct 2024 |
| 61 | ROBERTS | Richland County, MT | Oil & Gas Property | May 2025 |
| 62 | ROBERTS | Blaine County, MT | Gas Property | May 2025 |
| 63 | ROBERTS | Blaine County, MT | Gas Property | May 2025 |
| 64 | ROBERTS 34X-8 | Richland County, MT | Oil & Gas Property | May 2025 |
| 65 | ROBINSON | Blaine County, MT | Gas Property | May 2025 |
| 66 | ROBINSON | Roosevelt County, MT | Oil & Gas Property | Apr 2025 |
| 67 | ROBINSON | Carbon County, MT | Oil & Gas Property | May 2024 |
| 68 | ROBINSON-FED | Blaine County, MT | Gas Property | May 2025 |
| 69 | ROCK HAPPY 33-3H | Rosebud County, MT | Oil & Gas Property | May 2025 |
| 70 | ROCKY | Richland County, MT | Oil & Gas Property | May 2025 |
| 71 | ROCKY BOY | Hill County, MT | Gas Property | May 2025 |
| 72 | ROCKY BOY | Hill County, MT | Gas Property | May 2025 |
| 73 | ROCKY BOY-DIR 2 | Hill County, MT | Gas Property | May 2025 |
| 74 | ROCKY-FRANZ 20-2-H | Richland County, MT | Oil & Gas Property | May 2025 |
| 75 | ROCKY-ROSEMARY 29-14H | Richland County, MT | Oil & Gas Property | May 2025 |
| 76 | ROGERS | Toole County, MT | Gas Property | May 2025 |
| 77 | ROGERS | Toole County, MT | Gas Property | May 2025 |
| 78 | ROGNAS | Richland County, MT | Oil & Gas Property | May 2025 |
| 79 | ROGNAS-BARBARA HSU | Richland County, MT | Oil & Gas Property | May 2025 |
| 80 | ROMO BRO | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 81 | ROMO BRO MARGARET 2759 43-9B | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 82 | RONIN | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 83 | ROSE COULEE 2 | Hill County, MT | Gas Property | Dec 2024 |
| 84 | ROSS | Blaine County, MT | Gas Property | May 2025 |
| 85 | ROSSMILLER GOVT | Toole County, MT | Oil & Gas Property | May 2025 |
| 86 | ROWIN 17 | Richland County, MT | Oil & Gas Property | May 2025 |
| 87 | RPI COTTONWOOD 4-16HZ | Richland County, MT | Oil & Gas Property | Apr 2025 |
| 88 | RUBY ALLEN | Toole County, MT | Oil & Gas Property | May 2025 |
| 89 | RUDOLPH | Roosevelt County, MT | Oil & Gas Property | Apr 2025 |
| 90 | RUDOLPH | Roosevelt County, MT | Oil & Gas Property | Jun 2020 |
| 91 | RUEGSEGGER | Sheridan County, MT | Oil & Gas Property | May 2025 |
| 92 | RUFFATTO | Richland County, MT | Oil & Gas Property | May 2025 |
| 93 | RUNKEL 1 | Hill County, MT | Gas Property | Dec 1997 |
| 94 | RUSSELL | Toole County, MT | Gas Property | May 2019 |
| 95 | RUTHERFORD | Pondera County, MT | Oil Property | Apr 2001 |