Eroei analysis usually doesn't go very far down the production process. What you want is Well to Tank calculations, which suggest that the process of making ga

Eroei analysis usually doesn't go very far down the production process. What you want is Well to Tank calculations, which suggest that the process of making gasoline accounts for 15-20% of the total GHG emissions, so add 25% onto the number you get from burning the fuel in your car.