i hate to rain on the parade but the oil companies are likely no more greedy than any other corporation. you can point the finger at them for environmental issues but there isn't much argument against their right to make a profit in a capitalistic society.

consider this:

exxon mobil had revenues of $332B the past 12 months and net income of $36B during the same period. that's a profit margin of just under 11%. that's not unlike many other companies. compare that to the greediest of all corporations, the ones you should really be complaining about... the banks. for example, citigroup had revenues of $75B and net income of $20B for a profit margin of 33% over the past 12 months. why not protest citigroup, bank of america, etc.? they are stealing your hard earned money every day with the government's blessing.

a real problem is that there have been no major oil field discoveries in the world in decades. the large quantity of oil that is available will progressively become harder to extract resulting in even higher prices. chances are that "peak oil" is already upon us. china and india are buying more and more oil to satisfy their industrialization. they're willing to pay big bucks to secure future oil rights. here in the u.s. nobody wants a new refinery in their town so refining capability is maxed out.

another big reason for the increasing oil prices is government/central banking. the u.s. federal reserve increased (i.e., inflated) the money supply in the u.s. a whopping 8% last year. it's not just oil that is going up in price, it's virtually all commodities and assets. oil is going up in price for the same reason that your house has gone up in price (somehow people don't get angry when house prices increase 10% each year).

what can you do to counter high oil and commodity prices? invest in oil stocks, gold, silver, fertilizer, etc., etc. demand that your congresspeople become fiscally responsible (i listed this second since there is not much chance of getting any fiscally responsible people in congress).

finally, want cheap gasoline? move to venezuela. you can fill your crossfire there for around $2.