Question: how many tons of co2 per barrel of oil?
Answer: The average carbon dioxide coefficient of distillate fuel oil is 429.61 kg CO2 per 42-gallon barrel (EPA 2018). The fraction oxidized to CO2 is 100 percent (IPCC 2006). The average carbon dioxide coefficient of liquefied petroleum gases is 235.7 kg CO2 per 42-gallon barrel (EPA 2018).