| | | | | | | | |
|---|
| Rohuneeme F-126 borehole | Estonia | 59.5663, 24.7943 | 5 | 0 | 16 | 16 | |
| Roobimaa 881 borehole | Estonia | 58.2581, 21.9437 | 0 | 0 | 0 | 0 | |
| Rooküla 7018 borehole | Estonia | 59.2496, 25.2851 | 9 | 76 | 218 | 172 | |
| Roopa 987 borehole | Estonia | 58.2711, 21.8546 | 0 | 0 | 0 | 0 | |
| Rootsivere 921 borehole | Estonia | 58.5906, 23.1388 | 1 | 0 | 0 | 0 | |
| Riekstini 15 borehole | Latvia | 56.2199, 21.1979 | 6 | 158 | 83 | 74 | |
| Siuge borehole | Estonia | | 1 | 0 | 0 | 0 | |
| Sigula F-124 borehole | Estonia | 59.4298, 25.6063 | 9 | 32 | 28 | 28 | |
| Saia 668 borehole | Estonia | 58.3387, 22.4406 | 1 | 0 | 0 | 0 | |
| Siimika F-328 borehole | Estonia | 59.1379, 24.1757 | 7 | 12 | 28 | 14 | |
| Sillamäe borehole | Estonia | 59.4046, 27.7497 | 1 | 0 | 0 | 0 | |
| Silma 988 borehole | Estonia | 58.2491, 21.9183 | 0 | 0 | 0 | 0 | |
| Silma 989 borehole | Estonia | 58.2490, 21.9277 | 0 | 1 | 0 | 0 | |
| Simuna borehole | Estonia | | 1 | 0 | 0 | 0 | |
| Sindi A533 borehole | Estonia | | 1 | 0 | 0 | 0 | |
| Sinima K87 borehole | Estonia | 58.7463, 22.5295 | 0 | 0 | 0 | 0 | |
| Sinimäe 314 borehole | Estonia | 59.3836, 27.8800 | 12 | 51 | 50 | 183 | |
| Sipa F-305 borehole | Estonia | 59.1096, 24.5186 | 5 | 1 | 15 | 13 | |
| Sirvaku 280 borehole | Estonia | 58.2192, 26.7893 | 3 | 0 | 66 | 154 | |
| Sibila 7035 borehole | Estonia | 59.1068, 25.3777 | 4 | 1 | 108 | 51 | |
| Slantsy 1133 borehole | Russia | 59.1155, 28.1257 | 0 | 0 | 0 | 0 | |
| Slantsy 246-g borehole | Russia | | 7 | 19 | 26 | 139 | |
| Soera K73 borehole | Estonia | 58.9706, 22.8485 | 0 | 0 | 0 | 0 | |
| Sompa 3 borehole | Estonia | 59.3636, 27.3159 | 3 | 2 | 1 | 1 | |
| Sonda F-199 borehole | Estonia | 59.3539, 26.8335 | 10 | 1 | 58 | 78 | |
