Lower demand for fuels has led utility companies to drop the costs that they usually pass along to consumers.
PSNC Energy is expected to charge 28 percent less than a year ago, which translates into a $38 savings for the typical residential natural gas bill.
Piedmont Natural Gas will charge about 16 percent less this winter.
Progress Energy has asked state regulators for a rate cut of less than 50 cents a month for the typical household.
Duke Energy raised its rates about 5 percent this month.
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