Two words, my friend:
Commodities Traders
They're the Money Changers of our time.
Teresa,
I'll have to concede ignorance here. It's my impression that gas prices are driven by the market. There's a certain amount of crude that's readily (and inexpensively) available. However, increased demand, partially due to economic expansion in developing countries such as China and India, have forced the oil industry to obtain crude from more costly sources.
We (the US) aren't helping matters with so many people driving eight-cylinder SUVs, mini-vans, and pickup trucks when smaller vehicles would serve their purposes. This increases demand and results in a greater proportion of a gallon of gasoline coming from a more costly source of crude.
I don't see the connection with commodities traders, as it appears to me to be a natural economic process. Going back to the previous paragraph, it's not easy to see ourselves (collectively) as the party at least somewhat at fault. How do commodities traders fit in here?
Rick
The oil prices are way out of line with what would be expected due to supply and demand. Part of it is due to the falling dollar. The commodities traders are pumping money into oil ostensibly as a "hedge", but a lot of it is mere pump and dump. This article (along with its sequel) from Business Week explains the situation quite well (and no, it's not an April fool joke, I have been reading the same thing in the finance pages for months).
Excerpt:
This is the new oil paradigm. No matter what happens, it is used to justify the commodities market's contention that oil prices just aren't high enough: In one week we add 7.4 million barrels of oil to stock in reserve and yet the price goes up almost $4 a barrel. Then the very next week our reserves fall because of fog, and the price goes up another $2.37. But the only people who still claim to be stunned by what's happening in oil are the analysts quoted by the media that cover the industry.