Gas Fact Sheets

Gas Supply Prices: August

Ameren Illinois – 47.88 cents per therm (UP about 12 percent from August 2025)
Consumers Gas – $35.58 per therm (DOWN about 35 percent from August 2025)
Illinois Gas – 41.84 cents per therm (DOWN about 18 percent from August 2025)
Liberty Utilities – 95.13 cents per therm (UP about 42 percent from August 2025)
MidAmerican Energy – 39.18 cents per therm (DOWN about 32 percent from August 2025)
Mt. Carmel – 41.23 cents per therm (UP about 4 percent from August 2025)
Nicor Gas – 36.00 cents per therm (DOWN about 31 percent from August 2025)
North Shore Gas – 40.93 cents per therm (UP about 14 percent from August 2025)
Peoples Gas – 36.72 cents per therm (DOWN about 15 percent from August 2025)

Note: See historical prices here.

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