how much does a barrel of oil does costs Chevron to produce for sale in the crude oil market, without refining costs. Show actual refernece if already calculated or show calculation to get the number. Break down numbers and where these costs come from how much does a barrel of oil does costs Chevron to produce for sale in the crude oil market, without refining costs. Show actual refernece if already calculated or show calculation to get the number. Break down numbers and where these costs come from