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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
2009 2010 2011 2012 2013 2014 View
History
Proved Reserves as of Dec. 31
9,362 8,896 8,156 7,291 6,482 6,890 1981-2014
Adjustments
2 -106 -28 -429 76 548 1981-2014
Revision Increases
1,637 2,617 2,050 2,229 1,017 1,299 1981-2014
Revision Decreases
1,417 1,771 2,260 2,178 789 1,234 1981-2014
Sales
124 741 295 511 850 294 2000-2014
Acquisitions
159 785 385 734 363 364 2000-2014
Extensions
270 186 81 239 175 161 1981-2014
New Field Discoveries
48 68 562 64 84 378 1981-2014
New Reservoir Discoveries in Old Fields
223 213 76 48 56 68 1981-2014
Estimated Production
1,886 1,717 1,311 1,061 941 882 1981-2014
- = 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: 11/19/2015
Next Release Date: 12/31/2016