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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
7,316 6,745 4,566 3,316 6,521 8,811 1977-2018
Adjustments
-5 -21 229 104 318 86 1977-2018
Revision Increases
153 266 76 844 3,178 2,067 1977-2018
Revision Decreases
2,400 685 2,217 1,839 0 569 1977-2018
Sales
91 165 0 174 0 0 2000-2018
Acquisitions
272 193 1 26 0 769 2000-2018
Extensions and Discoveries
      96 50 262 2016-2018
Extensions
92 145 27 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
1 0 0 -- -- -- 1977-2018
Estimated Production
285 304 295 307 341 325 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