View History:  Annual  
Download Data (XLS File)
Illinois Working Natural Gas Underground Storage Depleted Fields Capacity  (Million Cubic Feet)
Illinois Working Natural Gas Underground Storage Depleted Fields Capacity (Million Cubic Feet)
Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9
  2000's 51,418 51,418
  2010's 87,368 87,368 87,368 11,768 11,768 11,768 11,768 53,108 51,768 51,768
  2020's 51,768 51,768 53,308


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 3/29/2024
Next Release Date: 4/30/2024

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