Yes, to a certain extent. But refined products get piped all over, so it isn't a very tight coupling. Delta Airlines bought their own refinery for jet fuel. It

Yes, to a certain extent. But refined products get piped all over, so it isn't a very tight coupling. Delta Airlines bought their own refinery for jet fuel. It didn't work out too well, but it was still interesting. https://www.nytimes.com/2020/08/10/business/energy-environment/delta-oil-refinery-jet-fuel.html https://www.nytimes.com/2020/08/10/business/energy-environme...