Resources on information regarding utilities.
Commonwealth Edison Company, perhaps better known as ComEd, is a unit of Chicago-based Exelon Corporation (NYSE: EXC). Exelon is one of the nation's largest electric utilities, with approximately 5.4 million customers.
ComEd provides service to approximately 3.8 million customers across Northern Illinois,
or 70 percent of the state's population.
JULIE stands for Joint Utility Locating Information for Excavators.
JULIE Inc. provides Illinois excavators and underground utility owners with a continuously improving,
one-call message handling and delivery service committed to protecting underground utilities and the
safety of people working or living near them. JULIE neither owns nor marks any underground lines.
Nicor Gas is a natural gas distribution company that serves more than 2.2 million customers in a service
territory that encompasses most of the northern third of Illinois, excluding the city of Chicago.