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 price about 41 percent higher, according to CUB’s review of September gas prices. Gas prices have been on the rise, with colder-than-normal weather last winter and record gas exports (meaning profit-hungry c...| Citizens Utility Board