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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
2012 2013 2014 2015 2016 2017 View
History
Proved Reserves as of Dec. 31
6,516 4,442 7,733 6,400 3,159 3,835 1979-2017
Adjustments
20 120 -73 -151 179 -10 1979-2017
Revision Increases
1,620 702 3,462 921 610 275 1979-2017
Revision Decreases
1,380 2,783 511 1,683 4,134 388 1979-2017
Sales
28 13 114 351 17 651 2000-2017
Acquisitions
8 6 115 305 35 1,166 2000-2017
Extensions and Discoveries
        388 588 2016-2017
Extensions
1,374 352 936 152 -- -- 1979-2017
New Field Discoveries
1 0 0 0 -- -- 1979-2017
New Reservoir Discoveries in Old Fields
0 0 0 0 -- -- 1979-2017
Estimated Production
326 458 524 526 302 304 1979-2017
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Florida (2017-present), 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: 11/28/2018
Next Release Date: 11/29/2019