…Although Saudi Arabia possesses larger reserves, it is now producing oil at close to its maximum sustainable rate (about 10 million barrels per day). It will probably be unable to raise its output significantly over the next 20 years while global demand, pushed by significantly higher consumption in the United States, China, and India, is expected to rise by 50%. Iran, on the other hand, has considerable growth potential: it is now producing about 4 million barrels per day, but is thought to be capable of boosting its output by another 3 million barrels or so. Few, if any, other countries possess this potential, so Iran’s importance as a producer, already significant, is bound to grow in the years ahead.
And it is not just oil that Iran possesses in great abundance, but also natural gas. According to Oil and Gas Journal, Iran has an estimated 940 trillion cubic feet of gas, or approximately 16% of total world reserves. (Only Russia, with 1,680 trillion cubic feet, has a larger supply.) As it takes approximately 6,000 cubic feet of gas to equal the energy content of 1 barrel of oil, Iran’s gas reserves represent the equivalent of about 155 billion barrels of oil. This, in turn, means that its combined hydrocarbon reserves are the equivalent of some 280 billion barrels of oil, just slightly behind Saudi Arabia’s combined supply. At present, Iran is producing only a small share of its gas reserves, about 2.7 trillion cubic feet per year. This means that Iran is one of the few countries capable of supplying much larger amounts of natural gas in the future…
Excerpt from Michael T. Klare article Oil, Geopolitics, and the Coming War with Iran via TomDispatch.com

