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Illinois   Illinois Profile

State Profile and Energy Estimates

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Profile Overview

Quick Facts

  • Illinois is the fifth-largest energy-consuming state in the nation, and its industrial sector, which includes petroleum refining, coal mining, and agriculture, uses the most energy of any end-use sector in the state.
  • Illinois ranks fourth in the nation in crude oil refining capacity behind Texas, Louisiana, and California, with a refining capacity of nearly 1 million barrels per calendar day.
  • The estimated recoverable coal reserves in Illinois are the second-largest in the nation after Montana, and the state's coal mines account for 7% of U.S. coal production.
  • Illinois has the third-largest annual ethanol production capacity (1.8 billion gallons) and the fourth-largest annual biodiesel fuel production capacity (168 million gallons) in the nation. 
  • Illinois generates more electricity from nuclear energy than any other state and accounted for 13% of U.S. nuclear power generation in 2020.

Last Updated: June 17, 2021

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