at MarketWatch.com (May 23, 2014)
Northwest Natural Gas (NWN) says that for the first time since 2002, due to higher operational costs, it's filed for a general rate increase with the Public Utility Commission of Oregon. If approved, the request will result in an overall revenue increase of about 6%, or $43.7M.
From other sites
at MarketWatch.com (Oct 5, 2011)
at MarketWatch.com (Sep 30, 2011)