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Dry Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2013 2014 2015 2016 2017 2018 View
History
Proved Reserves as of Dec. 31
3,592 4,359 3,183 2,821 2,654 2,449 1977-2018
Adjustments
-20 94 396 -213 33 14 1977-2018
Revision Increases
733 575 230 368 236 87 1977-2018
Revision Decreases
521 218 1,589 308 166 124 1977-2018
Sales
31 1,092 6 304 457 4 2000-2018
Acquisitions
31 1,409 0 311 378 0 2000-2018
Extensions and Discoveries
      0 1 0 2016-2018
Extensions
375 271 62 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
0 0 0 -- -- -- 1977-2018
Estimated Production
283 272 269 216 192 178 1977-2018
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: W -- Individual state volumes are withheld to avoid disclosure of operator-level reserves data, due to statistical precision requirements, or due to other data quality reasons. The individual state volumes are included in the U.S. Total volume.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/12/2019
Next Release Date: 11/20/2020