| Similarity | Rank | |
|---|---|---|
| fracking | 0.862 | 21463 |
| drilling | 0.825 | 8037 |
| hydraulic | 0.774 | 13689 |
| shale | 0.766 | 17984 |
| drillers | 0.720 | 78745 |
| Shale | 0.706 | 29866 |
| oilsands | 0.703 | 96475 |
| Fracking | 0.695 | 62210 |
| pipelines | 0.687 | 21092 |
| dewatering | 0.687 | 87432 |
| Marcellus | 0.680 | 34448 |
| extraction | 0.674 | 11465 |
| groundwater | 0.674 | 17131 |
| Hydraulic | 0.673 | 46631 |
| tailings | 0.670 | 49890 |
| aquifers | 0.669 | 48296 |
| hydraulically | 0.668 | 90196 |
| seismic | 0.663 | 19767 |
| Drilling | 0.662 | 33103 |
| frac | 0.658 | 62457 |
| subsurface | 0.658 | 41325 |
| hydrocarbon | 0.656 | 36213 |
| mining | 0.655 | 4846 |
| shales | 0.655 | 97010 |
| liquefaction | 0.654 | 86945 |