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Estimated Dry Natural Gas contained in Total Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2009 2010 2011 2012 2013 2014 View
History
Proved Reserves as of Dec. 31
6,882 7,663 7,513 7,253 7,034 7,454 1977-2014
Adjustments
188 -172 -76 301 41 127 1977-2014
Revision Increases
526 1,252 795 1,022 891 910 1977-2014
Revision Decreases
1,060 958 1,413 2,427 1,369 1,101 1977-2014
Sales
46 131 1,089 132 533 1,387 2000-2014
Acquisitions
68 96 579 671 813 1,846 2000-2014
Extensions
837 1,263 1,687 1,003 532 657 1977-2014
New Field Discoveries
0 0 3 0 0 0 1977-2014
New Reservoir Discoveries in Old Fields
0 0 14 0 92 0 1977-2014
Estimated Production
553 569 650 698 686 632 1977-2014
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Idaho, Illinois, Indiana, Maryland, Missouri, Nebraska, Nevada, Oregon, South Dakota, and Tennessee. Estimated Dry Natural Gas is calculated from Total Natural Gas Proved Reserves.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 11/19/2015
Next Release Date: 12/31/2016