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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
6,728 7,014 9,458 8,743 9,640 11,057 1977-2014
Adjustments
-127 3 358 635 225 82 1977-2014
Revision Increases
774 1,084 2,271 965 905 1,496 1977-2014
Revision Decreases
1,419 850 1,087 2,072 1,491 786 1977-2014
Sales
260 208 939 550 424 505 2000-2014
Acquisitions
309 180 1,245 65 523 1,148 2000-2014
Extensions
506 943 1,452 1,162 1,977 843 1977-2014
New Field Discoveries
45 24 7 1 0 2 1977-2014
New Reservoir Discoveries in Old Fields
309 3 23 5 1 19 1977-2014
Estimated Production
1,013 893 886 926 819 882 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