Gas

Gas Supply Prices: October

Ameren Illinois – 45.24 cents per therm (DOWN about 4 percent from October 2025)
Consumers Gas – 21.21 cents per therm (DOWN about 53 percent from October 2025)
Illinois Gas – 26.58 cents per therm (DOWN about 42 percent from October 2025)
Liberty Utilities – 53.43 cents per therm (UP about 11 percent from October 2025)
MidAmerican Energy – 42.06 cents per therm (DOWN about 31 percent from October 2025)
Mt. Carmel – 71.32 cents per therm (UP about 8 percent from October 2025)
Nicor Gas – 33.00 cents per therm (DOWN about 15 percent from October 2025)
North Shore Gas – 37.69 cents per therm (UP about 3 percent from October 2025)
Peoples Gas – 32.83 cents per therm (UP about 8.5 percent from October 2025)

Note: See historical prices here.