| Permafrost hydrate | Marine hydrates/m3 | References |
| 5.7 × 1013 | (5.25) × 1015 | Trofimuk (1977) |
| 3.1 × 1013 | 3.1 × 1015 | Melver (1982) |
| 3.4 × 1016 | 7.6 × 1018 | Dobrynin (1981) |
| 1.4 × 1013 |
| Meyer (1981) |
| 1.0 × 1014 | 1.0 × 1014 | Makogon (1981) |
|
| 1.8 × 1016 | Kvenvolden (1988) |
| 7.4 × 1014 | 2.1 × 1016 | MacDonal (1990) |
|
| (2.6 - 13.9) × 1016 | Gornitz andFung (1994) |
|
| 0.38 × 1015 | Ginsburg and Soloviev (1995) |
|
| (0.38 - 1.0) × 1015 | Soloviev (2002) |