Well, I'm happy that I still can settle with just a bike and public transportation. My 2 bikes just need a cupfull of oil per year for the chains.
But seriously, to the main theme: not only the oil companies are greedy. Half of the prize in Denmark goes directly to the tax system. But at least that money comes back to all citizens in some way or another.
Regarding the daily prizes, it's a question of supply and demand. I fully understand that people need their cars in order to go to work, when they live in an area, which are far away from work and/or bad connected with public transportation. And maybe they cannot use car pooling (? - sharing of car) with friends working in same area as yourself.
However, it never stops to amaze me that some people use their car in order to drive to their local store to buy a packet of cigarettes or similar small amounts of groceries in a neighborhood store instead of using the bike or just by walk, thus having some exercise at the same time. It's resource waste and unnecessary pollution
