Energy Energy Search | Advanced Search | New Members | Coupons and Discounts | All Categories Sort alphabetically by... Name City NICOR GAS _ 1844 W. Ferry Rd.Naperville, IL 60563 (888) 642-6748 Member Since: 2007 Learn More | Visit Site | Show on Map DACOTT ENERGY SERVICES, LTD. _ 2001 Butterfield Rd., Suite 105Downers Grove, IL 60515 (713) 664-8600 Member Since: 2017 Learn More | Visit Site | Show on Map If your business isn't here, contact us today to get listed!