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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
2010 2011 2012 2013 2014 2015 View
History
Proved Reserves as of Dec. 31
14,178 16,370 11,035 13,518 12,789 8,339 1977-2015
Adjustments
-34 728 -743 -78 -3 288 1977-2015
Revision Increases
1,072 631 1,754 560 171 231 1977-2015
Revision Decreases
301 324 6,610 284 1,094 4,279 1977-2015
Sales
393 6,760 1 4 248 188 2000-2015
Acquisitions
807 6,880 6 9 80 269 2000-2015
Extensions
3,082 2,093 1,399 3,419 1,505 242 1977-2015
New Field Discoveries
0 0 0 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields
27 23 11 1 2 2 1977-2015
Estimated Production
951 1,079 1,151 1,140 1,142 1,015 1977-2015
- = 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: 12/14/2016
Next Release Date: 11/30/2017