CONSERVATION ENVIRONMENTAL PETROLEUM PRODUCED WATER REGULATIONS REUSE

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Abstract

Natural gas is an important energy source for the United States. Shale formations represent a growing source of natural gas for the nation and are among the busiest oil and gas plays in the country. As an indication of their importance, in less than one yearﾒs time, the U.S. Department of Energyﾒs (DOEﾒs) Energy Information Administration (EIA) dramatically increased its estimate of the proportion of future domestic gas production that is likely to come from shale formations. Figure 1 shows the accelerated growth and projected increases in shale gas since about 2005 through 2035. The estimates include supplies of coalbed methane, lower 48 states offshore and conventional production, tight gas, and shale gas over the same period of time. The EIA projections released in June 2012 now show that shale gas will increase from 14% of the national supply in 2009 to 49% in 2035 (1). (Note that this figure and data is updated from when the paper was written, and at that time EIA data suggested that shale gas would be 45% of the nationﾒs supply in 2035.)

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