Six Times As Much Oil As Saudi Arabia

With oil at $60 per barrel or so, alternative sources are suddenly looking better. One of them is shale oil. It's more expensive to extract, but economically feasible at current prices.
Plus, we have a lot of it. The Green River shale deposits in Colorado, Utah and Wyoming contain 6 times a much oil as all the proven reserves in Saudi Arabia.
That's a lot damned oil. And our reserves of natural gas are similarly generous. In the end, the Arabs are going to regret these high prices. Once we get our engine going, we can steamroll those jerks.
They won't be able to afford explosive vests.