Exxon has run, on average, an 8.6% margin over the last 4 years (FY 2010-2013) [1]. Google runs at double that. This implies (though does not prove) that Google has more leverage in its market than does Exxon.
Do some government policies benefit Exxon? Likely. Does every government tax and regulate Exxon at the maximally efficient rate? No. But that is a far cry from saying Exxon would be worse off if, globally, resource-related regulation was pared back.
You seem to imply the assumption that the regulations in the energy industry don't benefit ExxonMobil.