| Queries | Unique users |
Referrers |
Average Click Position |
|
|---|---|---|---|---|
| green river oil shale | 4 | 4 | 1 | |
| oil shale | 3 | 3 | 4 | |
| colorado oil shale 2 trillion barrels | 1 | 1 | 1 | |
| shale oil | 1 | 1 | 4 | |
| united states oil shale | 1 | 1 | 2 | |
| utah shale oil | 1 | 1 | 3 | |
| oil in colorado | 1 | 1 | 3 | |
| oil tar sands | 1 | 1 | 8 | |
| shale oil green river formation colorado | 1 | 1 | 1 | |
| salaries for mineral miners in virginia | 1 | 1 | 13 | |
| what is coal used for | 1 | 1 | 9 | |
| oil sands new mexico | 1 | 1 | 1 | |
| u.s. oil shale deposits | 1 | 1 | 1 | |
| u.s. geological survey alumina | 1 | 1 | 70 | |
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