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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
35,074 35,290 30,094 33,618 27,553 20,436 1977-2015
Adjustments
521 -209 692 2,058 -1,877 1,988 1977-2015
Revision Increases
4,880 3,271 1,781 3,800 2,235 885 1977-2015
Revision Decreases
5,540 3,033 6,715 1,737 6,530 7,628 1977-2015
Sales
1,278 1,145 536 695 3,098 1,153 2000-2015
Acquisitions
1,308 1,205 619 679 4,157 25 2000-2015
Extensions
2,117 2,214 953 1,400 766 500 1977-2015
New Field Discoveries
1 0 0 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields
0 1 11 11 0 0 1977-2015
Estimated Production
2,218 2,088 2,001 1,992 1,718 1,734 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