Alternative Fuel Excise Tax
Compressed natural gas motor fuel is subject to the state fuel excise tax at the rate of $0.34 per 120 cubic feet, measured at 14.73 pounds per square inch and 60 degrees Fahrenheit. Propane motor fuel is subject to the excise tax $0.34 per 1.3 gallons at 60 degrees Fahrenheit. (Reference Oregon Revised Statutes 319.530)