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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
16,529 16,138 14,553 14,567 16,426 15,437 1979-2015
Adjustments
-32 107 79 -206 592 -57 1979-2015
Revision Increases
2,364 2,267 2,555 3,649 3,657 1,506 1979-2015
Revision Decreases
1,960 2,386 3,500 2,985 2,130 3,881 1979-2015
Sales
161 1,088 344 768 16 985 2000-2015
Acquisitions
469 1,155 127 641 69 2,569 2000-2015
Extensions
514 802 745 827 945 1,148 1979-2015
New Field Discoveries
0 3 2 0 1 0 1979-2015
New Reservoir Discoveries in Old Fields
3 9 5 98 4 1 1979-2015
Estimated Production
1,312 1,260 1,254 1,242 1,263 1,290 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, Nebraska, 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