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Expected Future Production of Dry Natural Gas
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2007 2008 2009 2010 2011 2012 View
History
Proved Reserves as of Dec. 31
2,469 2,714 2,782 2,613 2,006 1,408 1977-2012
Adjustments
37 81 97 -58 -34 -282 1977-2012
Revision Increases
62 187 126 103 178 43 1977-2012
Revision Decreases
152 133 760 540 639 276 1977-2012
Sales
4 10 0 0 100 0 2000-2012
Acquisitions
6 13 0 39 84 0 2000-2012
Extensions
373 200 713 383 4 0 1977-2012
New Field Discoveries
0 0 0 0 1 0 1977-2012
New Reservoir Discoveries in Old Fields
0 0 0 0 0 0 1977-2012
Estimated Production
80 93 108 96 101 83 1977-2012
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Illinois, Indiana, Maryland, Missouri, Nebraska, Nevada, Oregon, South Dakota, and Tennessee. Expected Future Production data are calculated from Total Wet Natural Gas Proved Reserves.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 4/10/2014
Next Release Date: 4/30/2015