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Dry Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2016 2017 2018 2019 2020 2021 View
History
Proved Reserves as of Dec. 31
7,133 9,636 9,730 8,363 8,561 10,373 1977-2021
Adjustments
33 70 -393 -1,093 723 360 1977-2021
Revision Increases
2,725 469 412 265 489 1,945 1977-2021
Revision Decreases
4,299 597 343 657 91 225 1977-2021
Divestitures
88 4,096 527 129 894 0 2000-2021
Acquisitions
269 7,072 1,318 0 293 0 2000-2021
Extensions and Discoveries
213 157 182 764 164 169 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
616 572 555 517 486 437 1977-2021
- = 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: 12/30/2022
Next Release Date: NA