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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
2007 2008 2009 2010 2011 2012 View
History
Proved Reserves as of Dec. 31
68,827 74,284 76,272 84,157 90,947 74,442 1981-2012
Adjustments
-11 -8 864 1,057 1,057 -118 1981-2012
Revision Increases
8,776 8,399 7,249 10,189 18,999 7,730 1981-2012
Revision Decreases
4,523 7,958 9,534 8,835 19,105 24,789 1981-2012
Sales
5,819 2,948 1,850 2,075 20,836 2,655 2000-2012
Acquisitions
6,142 2,983 1,325 2,254 22,478 2,307 2000-2012
Extensions
10,912 11,039 9,734 11,332 10,566 7,752 1981-2012
New Field Discoveries
81 512 497 488 23 10 1981-2012
New Reservoir Discoveries in Old Fields
562 167 419 116 356 98 1981-2012
Estimated Production
6,029 6,729 6,716 6,641 6,748 6,840 1981-2012
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, 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: 4/10/2014
Next Release Date: 4/30/2015