Complex sentence: It serves electrical power to over 1 million customers in Island, Jefferson, King, Kitsap, Kittitas, Pierce, Skagit, Thurston, and Whatcom counties and natural gas to over 720,000 customers in King, Kittitas, Lewis, Pierce, Snohomish and Thurston counties.
Split into simpler sentences: It serves electrical power to more than 1 million customers in Island, Jefferson, King, Kitsap, Kittitas, Pierce, Skagit, Thurston, and Whatcom counties. It provides natural gas to more than 720,000 customers in King, Kittitas, Lewis, Pierce, Snohomish and Thurston counties.