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Estimated Dry Natural Gas contained in Total Natural Gas Proved Reserves
(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
15,412 15,005 13,586 13,576 15,283 14,364 1977-2015
Adjustments
-89 73 153 -202 555 -61 1977-2015
Revision Increases
2,211 2,114 2,384 3,407 3,394 1,394 1977-2015
Revision Decreases
1,833 2,229 3,276 2,791 1,979 3,599 1977-2015
Sales
145 1,016 311 705 15 922 2000-2015
Acquisitions
419 1,078 115 594 62 2,427 2000-2015
Extensions
468 731 680 753 860 1,038 1977-2015
New Field Discoveries
0 3 1 0 1 0 1977-2015
New Reservoir Discoveries in Old Fields
3 9 4 89 3 1 1977-2015
Estimated Production
1,220 1,170 1,169 1,155 1,174 1,197 1977-2015
- = 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. Estimated Dry Natural Gas is calculated from Total Natural Gas Proved Reserves.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/14/2016
Next Release Date: 11/30/2017