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basin-central gas type (1) |
bituminous sands (1) |
gas of shale strata (1) |
oil (1) |
oil shale (1) |
shale oil (1) |
tight sands (1) |
basin-central gas type (1) |
bituminous sands (1) |
gas of shale strata (1) |
oil (1) |
oil shale (1) |
shale oil (1) |
tight sands (1) |