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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
1,800 2,090 3,423 5,462 5,910 6,559 1977-2014
Adjustments
-90 -10 178 -19 -219 -84 1977-2014
Revision Increases
190 333 425 403 985 633 1977-2014
Revision Decreases
372 302 550 614 1,462 732 1977-2014
Sales
22 18 162 11 370 1,327 2000-2014
Acquisitions
5 30 634 195 426 1,267 2000-2014
Extensions
86 178 1,001 2,446 1,595 1,462 1977-2014
New Field Discoveries
11 307 0 0 0 0 1977-2014
New Reservoir Discoveries in Old Fields
13 9 113 69 27 103 1977-2014
Estimated Production
259 237 306 430 534 673 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