Mr. David H. Anderson has been the President of Northwest Natural Gas Company since July 1, 2015 and as its Chief Executive Officer and Director since August 1, 2016. Mr. Anderson served as the Chief Operating Officer of Northwest Natural Gas Company from February 27, 2014 to August 1, 2016. Mr. Anderson served as Chief Operating Officer and Executive Vice President of Northwest Natural Gas Company from 2014 to August 1, 2015. Mr. Anderson served as Executive Vice President of Operations and Regulation Northwest Natural Gas Company from March 1, 2013 to 2014. He served as Chief Financial Officer and Senior Vice President of Northwest Natural Gas Company from September 22, 2004 to March 1, 2013. During his 16-year career at Energy Future Holdings Corporation (Formerly TXU Corporation), Mr. Anderson served as Senior Vice President and Principal Accounting Officer since May 30, 2003 and also served as its Controller. He served as Senior Vice President, Chief Financial Officer, Principal Accounting Officer and Vice President for TXU Gas Co., a subsidiary of TXU Corporation. He served as Principal Accounting Officer, Vice President and Controller of TXU US Holdings Co., a subsidiary of TXU Corporation. He served as Principal Accounting Officer and Vice President of Texas Competitive Electric Holdings Company LLC and Oncor Electric Delivery. He served as a Vice President of Investor Relations and Shareholder Services and Principal Financial Officer for TXU Mining Company. He has been active in numerous financial, investor relations and industry associations, including the American Gas Association, Edison Electric Institute, National Investor Relations Institute and the American Institute of CPAs. He practiced public accounting in Texas. Mr. Anderson is a Certified Public Accountant. Mr. Anderson is an Accounting graduate of Texas Tech University.