Company Story
1913 - Northwest Natural Gas Company founded in Oregon City, Oregon
1922 - Company begins serving natural gas to Portland, Oregon
1930 - Northwest Natural Gas Company merges with Portland Gas Company
1957 - Company begins serving natural gas to Southwest Washington
1961 - Northwest Natural Gas Company goes public with an initial public offering (IPO)
1983 - Company begins serving natural gas to the Willamette Valley in Oregon
1995 - Northwest Natural Gas Company acquires Tualatin Valley Gas Company
2002 - Company changes its name to Northwest Natural Gas Company
2019 - Company changes its name to Northwest Natural Holding Company and acquires Kannapolis, North Carolina-based Encore Energy Partners