This page uses JavaScipt

Dry Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2004 2005 2006 2007 2008 2009 View
History
Proved Reserves as of Dec. 31
3,397 4,459 4,509 4,729 5,136 5,946 1977-2009
Adjustments
-287 214 -251 14 315 258 1977-2009
Revision Increases
664 646 298 310 390 383 1977-2009
Revision Decreases
256 76 188 359 444 865 1977-2009
Sales
71 6 745 2 160 54 2000-2009
Acquisitions
25 132 886 25 118 2 2000-2009
Extensions
185 371 229 412 437 1,190 1977-2009
New Field Discoveries
0 11 3 11 0 166 1977-2009
New Reservoir Discoveries in Old Fields
1 0 5 1 1 8 1977-2009
Estimated Production
170 230 187 192 250 278 1977-2009
- = 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, Nebraska, Nevada, Oregon, South Dakota, and Tennessee.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/30/2010
Next Release Date: 12/30/2011