View History:  Monthly  
Download Data (XLS File)
Mountain Region Natural Gas Working Underground Storage Capacity (Million Cubic Feet)
Mountain Region Natural Gas Working Underground Storage Capacity (Million Cubic Feet)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  2013 436,243 436,243 436,243 436,243 461,243 461,243 461,243 461,243 461,243 461,243 461,243 461,243
  2014 461,243 461,243 461,243 461,243 461,243 461,243 461,243 464,435 464,435 464,435 464,435 464,435
  2015 464,435 464,435 464,435 464,435 464,479 464,479 464,479 464,479 464,479 464,479 462,313 462,313
  2016 462,313 462,313 462,313 462,313 462,313 462,313 462,313 462,313 462,313 462,313 462,313 462,313
  2017 462,289 462,289 462,289 466,689 466,689 466,689 466,689 466,689 466,689 466,689 466,689 466,689
  2018 467,475 467,475 467,475 467,475 471,075 471,075 471,075 471,075 471,075 471,092 471,140 471,969
  2019 472,017 476,058 456,105 455,856 455,856 456,056 456,056 456,056 456,056 456,056 456,056 456,056
  2020 472,056 472,056 472,056 472,056 472,056 472,056 472,056 472,056 472,056 472,056 472,056 471,861
  2021 471,861 471,861 471,861 471,861 471,861 471,861 471,861 471,861 471,861 471,861 471,861 471,861
  2022 471,861 471,861 471,861 471,861 471,861 471,861 471,861 471,861 472,040 472,040 472,066 472,066
  2023 472,066 472,066 472,066 472,066 472,066 472,066 472,066 472,066 472,066 472,066 472,066 472,066
  2024 472,066 472,066 472,066 472,066 472,066 472,066 472,066 472,066 472,066 472,066 479,916 479,916
  2025 479,916 495,916 495,916 495,916 495,916 495,916 495,916

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 9/30/2025
Next Release Date: 10/31/2025

Referring Pages: