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CUB’s report on gas market volatility: November 2026

Gas prices for four of Illinois’ 9 major utilities are higher than a year ago, including Liberty Utilities, which is charging a supply price that is about 23 percent higher; Illinois Gas, with a price about 5 percent higher; and Peoples Gas, which is charging a price that is about…...

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CUB’s report on gas market volatility: October 2026

Gas prices for five of Illinois’ 9 major utilities are lower than a year ago, and thankfully, predictions are for a relatively stable gas market. Still, there are examples of market volatility, including the Mt. Carmel utility, which is charging a gas price that is about 84 percent higher than…...

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CUB’s report on gas market volatility: September 2026

Gas prices for six of Illinois’ 9 major utilities were up from a year ago, including Consumers Gas, which is charging a supply rate about 89 percent higher than last September and Liberty Utilities, with a price that is up about 41 percent, according to a CUB review of September…...

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CUB’s report on gas market volatility: July 2026

While five major gas utilities in Illinois reported lower prices compared with last July, several are charging higher supply rates—including Liberty Utilities and Consumers Gas, which are charging a whopping $1.03 per therm and $1.83 per therm this month, respectively, according to a CUB review of gas supply prices. Illinois…...

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CUB’s report on gas-market volatility: September

Gas prices for six of Illinois’ 9 major utilities are elevated, compared with a year ago, led by Liberty Utilities, which is charging a supply price that is about 157 percent higher; MidAmerican Energy, which is charging a price that is about 52 percent higher; and Nicor Gas, with a…...

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CUB’s report on gas-market volatility: August

Gas prices for seven of Illinois’ 9 major utilities remained elevated compared with a year ago, led by Liberty Utilities, which is charging a supply price that is about 208 percent higher; Nicor Gas, which is charging a price about 44 percent higher; and Peoples Gas, with a price about…...

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CUB’s report on gas-market volatility: July

Gas prices for eight of Illinois’ 9 major utilities remained elevated compared with a year ago, led by Nicor Gas, with a supply price that is about 50 percent higher; Liberty Utilities, with a price about 45 percent higher; and Peoples Gas, with a price about 38 percent higher. Only…...

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Elevated prices: CUB’s June report on gas market volatility

Gas prices for eight major Illinois utilities remained elevated compared with a year ago, led by Peoples Gas, which is charging a supply price that is about 97 percent higher; Nicor Gas, which is charging a price about 59 percent higher; and North Shore Gas, with a price about 55…...

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Elevated prices: CUB’s May report on gas market volatility

In May, prices for all 9 major Illinois gas utilities were higher than they were a year ago, led by Peoples Gas, which is charging customers a supply price that is about 116 percent higher; North Shore Gas, with a price about 81 percent higher and Nicor Gas, with a…...

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CUB’s monthly report on gas market volatility: Price spikes in April 2025

April gas supply prices are elevated for most utilities, led by Peoples Gas, which is charging a supply rate that is more than 100 percent higher than last year;  Illinois Gas, which is up by about 75 percent; and Nicor Gas, which is up by about 71 percent. “These numbers…...

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