USA produces over 5 Million barrels of crude oil a day
Oil was under $20 a barrel when Bush came into office
Oil is now about $110 a barrel; a major cause is Bush's occupation of Iraq which has made the Middle East even more unstable than usual.
Do the math:
5 Million/day times ($110 minus $20) = how much are domestic crude producers gaining EVERY DAY thanks to Bush?
(Now, yeah, there are a lot of subtleties glossed over above, but they cut both ways. So don't quibble. Look at the fundamentals.)