| Similarity | Rank | |
|---|---|---|
| shale_gas | 0.769 | 37644 |
| sandstone | 0.717 | 32305 |
| hydraulic_fracture | 0.702 | 33483 |
| limestone | 0.691 | 21613 |
| fracking | 0.681 | 11122 |
| natural_gas | 0.678 | 5419 |
| coal | 0.669 | 3568 |
| outcrop | 0.662 | 75989 |
| drilling | 0.634 | 10785 |
| hydrocarbon | 0.634 | 21173 |
| rock_formation | 0.634 | 62960 |
| tar_sand | 0.620 | 46054 |
| oil_sand | 0.615 | 85986 |
| bitumen | 0.611 | 67151 |
| basalt | 0.608 | 63672 |
| crude_oil | 0.603 | 20562 |
| gypsum | 0.601 | 75215 |
| Fracking | 0.600 | 45351 |
| fossil | 0.592 | 11711 |
| subsoil | 0.591 | 89615 |
| aquifer | 0.589 | 20084 |
| driller | 0.589 | 83065 |
| geological | 0.584 | 28476 |
| carbonate | 0.582 | 53559 |
| stratigraphy | 0.581 | 98142 |