Northwestern Energy is a major, regional provider of electricity and natural gas in Montana to over 335,000 electric and 180,100 natural gas customers in the western two-thirds of Montana. The Billings Division Operations provides regulated services in a ten county area to over 77,000 electric and 8,400 natural gas customers through a high concentration of substations and an extensive network of high voltage transmission lines supporting major electrical users. NorthWestern Energy is dedicated to providing safe, reliable and cost-effective energy services to all of its residential, commercial and industrial customers and offers a number of energy efficiency incentive programs to help customers save energy.