The US has about 20,000,000 barrels of proven reserves. (including park reservations) at 2009 production levels, domestic supply of Oil will be gone in 8 years. (side fact is how valuable oil will be after we've sold all ours)
The largest oil reserves in the United States of America are in Alaska. These oil reserves are not used as a main source of oil in the US.
The approximate proven US oil reserves are 134 Billion barrels of oil.
50 years maxumim
Nigeria has significant crude oil reserves, being one of the top oil-producing countries in Africa.
There are 19,120,000,000 barrels of oil in reserves in the US. These reserves produce 7,800,000 barrels of oil a day, the third most of any country. Most of these are located in Alaska and the Gulf Coast.
The US has about 30 Billion barrels of proven oil reserves. If assume use no oil imports (US imports about 60% of use currently) and current rate of consumption (oil use in US has recently begun to go down) of about 20.7 Million Barrels a day - US oil proven reserves will be drained in about 4 years. If use current levels of import, the current reserves will last about 10 years. If add in estimated prospective oil reserves, the US has about 130 Billion Barrels (unproven) additional reserves. Of the 130 Billion Barrels, ~ 85 BBls are offshore (~20 BBls in currently off limits areas) and ~45 BBls under land (~10 BBls are in ANWR). The prospective reserves would last at current consumption levels about another 17 years (21 total) with no imports or about another 43 years (53 total) at current import levels. The US also has the largest formation of oil shale in the world, with an estimated 1.5 (some estimates are over 2) Trillion barrels of oil in oil shale in reserve or about twice the reserves of the entire middle east, but this oil is harder to get. If use 1.5 TBls with no imports, US has oil to last 200 years at current consumption with no imports and nearly 500 years if assume current import levels just from this source.
It was predicted that our coal resources will last for around 250 years more. I am reluctant to agree with this statement though. Our oil reserves are expected to run out within the next 50 years if technology does not advance enough to give us alternatives. When this happens, our coal consumption will rise and exhaust the reserves much sooner than predicted.
Alaska
for "scientific reasearch". more for the large reserves, and i mean VERY large reserves of natural gas, oil, and gas
A decline in oil reserves Political instability abroad Environmental dangers caused by dependence on fossil fuels
a drop in reserves.
The largest oil reserves in North America are found in the Gulf of Mexico, around the coast of Alaska, interior of Canada and the US, and the Pacific coast.