This document provides a history of NW Natural from 1852 to 2012. It details key events and acquisitions that grew the company from its origins in 1859 as the Portland Gas Light Company distributing gas to 49 customers, to today serving over 680,000 customers across Oregon and Washington with over 20,000 miles of pipelines. Major milestones included connecting the gas distribution systems of East and West Portland in 1892, the arrival of natural gas in 1957 replacing manufactured gas, and expanding the pipeline network substantially in the 1970s and beyond.