Answer: petroleum

AnswerCrossword Clue
PETROLEUMSine qua non for the wheels of industry.
PETROLEUMMajor Wyoming resource
PETROLEUMImportant W. Va. product
PETROLEUMSource of kerosene and paraffin
petroleumA liquid mixture of hydrocarbons that is present in certain rock strata and can be extracted and refined to produce fuels including gasoline, kerosene, and diesel oil; oil
petroleuma general term including both oil and natural gas