Avista Corp. is an energy company involved in the production, transmission and distribution of energy as well as other energy-related businesses. Its segment includes Avista Utilities and AEL&P. The Avista Utilities segment comprises regulated utility operations in Washington, Idaho, Oregon and Montana. It engages in electric distribution and transmission, and natural gas distribution services in parts of eastern Washington and northern Idaho. It also provides natural gas distribution service in parts of northeastern and southwestern Oregon. Additionally, it supplies electricity to a small number of customers in Montana. Avista Utilities also engages in wholesale purchases and sales of electricity and natural gas as an integral part of energy resource management and its load-serving obligation. The AEL&P segment is a regulated utility providing electric services in Juneau, Alaska that is a wholly owned subsidiary and the primary operating subsidiary of AERC.