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Nonassociated Natural Gas Proved Reserves, Wet After Lease Separation
(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
22,199 23,001 23,633 18,226 19,253 16,510 1979-2014
Adjustments
474 578 921 -468 -265 615 1979-2014
Revision Increases
1,661 2,985 2,522 1,727 3,990 2,334 1979-2014
Revision Decreases
4,039 3,763 2,808 4,579 2,158 5,019 1979-2014
Sales
382 253 1,292 1,747 609 695 2000-2014
Acquisitions
446 81 1,278 298 818 568 2000-2014
Extensions
3,330 2,668 1,617 922 611 790 1979-2014
New Field Discoveries
8 23 19 3 0 0 1979-2014
New Reservoir Discoveries in Old Fields
0 29 0 0 12 6 1979-2014
Estimated Production
1,458 1,546 1,625 1,563 1,372 1,342 1979-2014
- = 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, Nevada, Oregon, South Dakota, and Tennessee.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 11/19/2015
Next Release Date: 12/31/2016