| hydraulic fracturing review | 0.43 | 0.2 | 8066 | 27 | 100 |
| hydraulic fracturing regulations | 0.96 | 0.1 | 3974 | 32 | 80 |
| hydraulic fracturing reaching ground water | 0.76 | 0.5 | 4245 | 42 | 75 |
| hydraulic fracturing report | 1.92 | 0.7 | 9695 | 27 | 47 |
| hydraulic fracturing referat | 0.1 | 0.8 | 5403 | 28 | 56 |
| hydraulic fracturing results | 0.38 | 0.6 | 1216 | 28 | 58 |
| hydraulic fracturing research | 0.47 | 0.2 | 9429 | 29 | 15 |
| hydraulic fracturing resources | 1.09 | 1 | 5909 | 30 | 38 |
| hydraulic fracturing regulatory act | 1.92 | 0.4 | 647 | 35 | 34 |
| hydraulic fracturing research paper | 0.42 | 0.2 | 2576 | 35 | 18 |
| hydraulic fracturing research kansas | 1.33 | 0.5 | 5953 | 36 | 74 |
| hydraulic fracturing reducing proppants | 1.17 | 0.8 | 1398 | 39 | 88 |
| hydraulic fracturing regulations history | 0.28 | 0.6 | 4818 | 40 | 72 |
| a review of hydraulic fracturing simulation | 1.94 | 0.4 | 3081 | 43 | 36 |
| hydraulic fracturing peer reviewed articles | 0.21 | 0.9 | 7874 | 43 | 70 |
