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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
24,119 24,821 20,666 22,381 20,851 17,139 1977-2015
Adjustments
449 801 -363 -272 627 -345 1977-2015
Revision Increases
2,973 2,509 2,137 4,110 3,461 1,740 1977-2015
Revision Decreases
3,645 2,921 4,598 2,329 5,007 4,555 1977-2015
Sales
242 1,244 1,667 584 693 198 2000-2015
Acquisitions
229 1,218 445 953 567 354 2000-2015
Extensions
2,838 2,015 1,563 1,352 1,070 874 1977-2015
New Field Discoveries
22 18 9 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields
27 0 0 12 6 0 1977-2015
Estimated Production
1,590 1,694 1,681 1,527 1,561 1,582 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