EIA residential natural gas price — IL

Latest value: 15.39 usd/mcf as of 2026-05-01, -5.5% year over year. 449 monthly observations from 1989-01 to 2026-05. Source: EIA — public data, full history downloadable as JSON on this page. Part of the Nowflation open directory.

DateValue
2026-05-0115.39
2026-04-0114.29
2026-03-0112.1
2026-02-0111.4
2026-01-019.65
2025-12-019.48

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