According to the Energy Information Administration,
in March the United States produced a "total oil supply" of 10.8
million barrels per day, which was 2.1 mb/d more than in January 2005.
But if you just rely on those aggregate numbers, you'll miss some very
important trends.
The EIA's definition of total oil supply represents the sum of a number of different components. The core is field production of crude oil and lease condensates, the latter being hydrocarbons that are a gas at reservoir temperatures and pressures but that can be separated into liquids at wellhead surface facilities. This core production is represented by the blue region in the graph below. Another category is the refinery processing gain, which results from the fact that the refined products occupy a larger volume than the original crude oil. These two components represented about 3/4 of the total in 2005, but account for only 40% of the 2.1 mb/d increase in the U.S. total supply figure since 2005. A bigger factor in the U.S. increase since 2005 has been natural gas plant liquids (hydrocarbons with a higher energy content than methane which can be separated out from methane at natural gas processing facilities) and other liquids (chiefly biofuels).
Read more: http://oilprice.com/Energy/Energy-General/How-the-Natural-Gas-Boom-has-Boosted-the-USs-Oil-Production-Figures.html
The EIA's definition of total oil supply represents the sum of a number of different components. The core is field production of crude oil and lease condensates, the latter being hydrocarbons that are a gas at reservoir temperatures and pressures but that can be separated into liquids at wellhead surface facilities. This core production is represented by the blue region in the graph below. Another category is the refinery processing gain, which results from the fact that the refined products occupy a larger volume than the original crude oil. These two components represented about 3/4 of the total in 2005, but account for only 40% of the 2.1 mb/d increase in the U.S. total supply figure since 2005. A bigger factor in the U.S. increase since 2005 has been natural gas plant liquids (hydrocarbons with a higher energy content than methane which can be separated out from methane at natural gas processing facilities) and other liquids (chiefly biofuels).
Read more: http://oilprice.com/Energy/Energy-General/How-the-Natural-Gas-Boom-has-Boosted-the-USs-Oil-Production-Figures.html
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