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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
15,598 15,412 15,005 13,586 13,576 15,283 1977-2014
Adjustments
525 -89 73 153 -202 555 1977-2014
Revision Increases
1,396 2,211 2,114 2,384 3,407 3,394 1977-2014
Revision Decreases
1,708 1,833 2,229 3,276 2,791 1,979 1977-2014
Sales
287 145 1,016 311 705 15 2000-2014
Acquisitions
292 419 1,078 115 594 62 2000-2014
Extensions
441 468 731 680 753 860 1977-2014
New Field Discoveries
1 0 3 1 0 1 1977-2014
New Reservoir Discoveries in Old Fields
3 3 9 4 89 3 1977-2014
Estimated Production
1,350 1,220 1,170 1,169 1,155 1,174 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