Your not going to even get close to hurting these companies. OIL IS HUGE! I work in the industry, not for an oil company. I see how they burn money needlessly and still make huge margins. Their ROI is so sick, they are making alot of money! Sure, their costs are big, but that is all mainly initial capital investments, once a well in flowing, so is the $$. Some wells producing over a million bb/day @ $40 a barrel is hard to imagine becase world wide there are hundres of wells.
Point is, someone is going to buy the oil, with the world becoming more industrialized (china) the oil can be sold. Gas won't go below 1.50 ever again IMO. In the past 20 years inflation has effected everything but gas, it is due...