The International Energy Agency sees a shortfall of 12.5 million barrels a day when it compares the needed 37.5 million barrels a day by 2015 with the planned supply increases showing 25 million barrels a day. A lot depends on the assumptions and what the 37.5 million barrels a day is based on. Does it account for a slowdown in the world economy and a drive for fuel efficiency and conservation habits by 2015? How much of this is reflected in the numbers? And on the planned increases of 25 million barrels a day- does it account for increases that may be planned in 2009 and 2010 in response to prices above $150 a barrrel which is expected? The IEA has a team of 25 analysts working on the forecasts but it gets no cooperation from Saudi Arabia about its individual fields production, and Venezuela, Iran and China also keep their information a secret. This makes supply forecasting a difficult business. IEA uses IHS Inc a data provider, USA Geologic Survey, oil and service companies information and national petroleum councilds information....