You're absolutely correct. I guess I meant that when push comes to shove and Europe needs to decide what to do with the Petroleum it does have, it can dedicate

You're absolutely correct. I guess I meant that when push comes to shove and Europe needs to decide what to do with the Petroleum it does have, it can dedicate to energy production and industry essential to function, and limit the amount available to consumers (think gas rations in the 70s), but it's harder to limit natural gas that is used by people to keep them alive in the winter. My fear is not "will the economy in Europe survive a lack of oil?" but is actually "Will Europe have enough natural gas to keep people from freezing in the Winter?" But yes, petroleum is essential as well.