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Dry Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2015 2016 2017 2018 2019 2020 View
History
Proved Reserves as of Dec. 31
8,896 7,133 9,636 9,730 8,363 8,561 1977-2020
Adjustments
-220 33 70 -393 -1,093 723 1977-2020
Revision Increases
731 2,725 469 412 265 489 1977-2020
Revision Decreases
2,007 4,299 597 343 657 91 1977-2020
Sales
682 88 4,096 527 129 894 2000-2020
Acquisitions
2,155 269 7,072 1,318 0 293 2000-2020
Extensions and Discoveries
  213 157 182 764 164 2016-2020
Extensions
104 -- -- -- -- -- 1977-2020
New Field Discoveries
0 -- -- -- -- -- 1977-2020
New Reservoir Discoveries in Old Fields
0 -- -- -- -- -- 1977-2020
Estimated Production
669 616 572 555 517 486 1977-2020
- = 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: 1/13/2022
Next Release Date: 12/30/2022