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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
2011 2012 2013 2014 2015 2016 View
History
Proved Reserves as of Dec. 31
305,986 269,514 295,504 319,724 258,807 268,913 1979-2016
Adjustments
2,325 -1,195 1,342 3,509 7,436 6,089 1979-2016
Revision Increases
47,927 34,343 40,981 42,064 29,030 41,737 1979-2016
Revision Decreases
50,174 81,869 36,900 44,184 101,272 44,569 1979-2016
Sales
43,237 8,819 8,453 17,671 13,405 17,018 2000-2016
Acquisitions
45,989 5,941 8,630 23,705 12,933 15,529 2000-2016
Extensions and Discoveries
          31,064 2016-2016
Extensions
41,678 37,023 41,444 37,109 25,807 -- 1979-2016
New Field Discoveries
376 629 200 344 8 -- 1979-2016
New Reservoir Discoveries in Old Fields
1,100 179 1,099 2,161 1,682 -- 1979-2016
Estimated Production
21,899 22,704 22,353 22,817 23,136 22,726 1979-2016
- = 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: 02/13/2018
Next Release Date: 10/31/2018