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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
22,769 26,345 27,830 26,599 26,873 31,778 1977-2014
Adjustments
984 -394 -368 -686 -622 816 1977-2014
Revision Increases
2,894 3,224 5,142 4,153 4,118 6,573 1977-2014
Revision Decreases
3,592 3,474 6,856 7,731 5,031 4,585 1977-2014
Sales
600 219 2,995 1,133 733 1,088 2000-2014
Acquisitions
387 1,519 2,459 975 738 1,210 2000-2014
Extensions
3,463 4,571 5,735 4,903 3,300 3,661 1977-2014
New Field Discoveries
0 51 47 44 2 135 1977-2014
New Reservoir Discoveries in Old Fields
178 1 18 7 392 306 1977-2014
Estimated Production
1,790 1,703 1,697 1,763 1,890 2,123 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