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Gas utilities

CUB’s report on gas utility prices: June 2026

While several gas utilities in Illinois, thankfully, reported lower prices compared with last June, one company, Liberty Utilities, reported a spike of about 33 percent, according to a CUB review of June prices. Illinois utilities file their supply price, called the Purchased Gas Adjustment (PGA), each month with the Illinois…...

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CUB’s report on gas market volatility: May 2026

While several gas utilities in Illinois reported lower prices compared with May 2025, two companies, Liberty Utilities and Mt. Carmel, reported spikes of 71 percent and 140 percent, according to a CUB review of prices this month.  Illinois utilities file their supply price, called the Purchased Gas Adjustment (PGA), each…...

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CUB’s report on gas market volatility: April 2026

As Illinois exits the winter heating season, all but two of the state’s major gas utilities are charging a supply price that is lower than a year ago. The two exceptions are Consumers Gas, whose customers face a 48 percent spike in the cost of heating gas, and Liberty Utilities,…...

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CUB’s report on gas market volatility: March 2026

Continuing a trend of elevated heating gas prices, March supply rates for six out of 9 major Illinois utilities were higher than a year ago, including Consumers Gas (86 percent), Mt. Carmel (60 percent) and Nicor Gas (29 percent).   Roughly eight out of 10 Illinois homes use methane gas for…...

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CUB’s report on gas market volatility: February 2026

February gas prices showed worrisome signs that winter storms and frigid temperatures across the nation were beginning to have an impact on the price we pay for heating fuel: Supply rates for several utilities jumped by more than 25 percent from a year ago, topped by Nicor Gas, with a…...

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CUB’s report on gas market volatility: January 2026

All of Illinois’ 9 major utilities are charging heating gas prices that are higher compared with a year ago, led by Nicor Gas, which is charging a supply price that is about 50 percent higher; Liberty Utilities, which is charging a price about 41.7 percent higher; MidAmerican Energy, with a…...

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CUB’s report on gas market volatility: December

Gas prices for eight of Illinois’ 9 major utilities are higher, compared with a year ago, led by Liberty Utilities, which is charging a supply price that is about 63 percent higher; Nicor Gas and Mt. Carmel, both charging a price about 56 percent higher; Peoples Gas, which has a…...

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CUB’s report on gas market volatility: November

Gas prices for five 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 120 percent higher; Nicor Gas, with a price about 39 percent higher, and Consumers Gas, which is charging a price that is…...

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CUB’s report on gas market volatility: October

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 153 percent higher; Nicor Gas, with a price about 39 percent higher, and MidAmerican Energy, which is charging a price that…...

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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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