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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
2010 2011 2012 2013 2014 2015 View
History
Proved Reserves as of Dec. 31
26,873 27,683 25,018 24,370 27,358 23,442 1979-2015
Adjustments
-93 -215 -549 -751 905 221 1979-2015
Revision Increases
3,271 5,294 4,169 3,782 5,818 2,617 1979-2015
Revision Decreases
3,613 7,154 7,683 4,420 3,891 6,480 1979-2015
Sales
164 2,948 1,209 635 1,093 1,046 2000-2015
Acquisitions
1,535 2,584 733 608 955 551 2000-2015
Extensions
4,492 4,883 3,529 2,275 1,951 1,860 1979-2015
New Field Discoveries
54 50 47 0 146 0 1979-2015
New Reservoir Discoveries in Old Fields
1 12 4 201 0 0 1979-2015
Estimated Production
1,725 1,696 1,706 1,708 1,803 1,639 1979-2015
- = 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, Nevada, Oregon, South Dakota, and Tennessee.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/14/2016
Next Release Date: 11/30/2017