EX-23 2 ex23.htm EXHIBIT 23 - AUDITOR CONSENT ex23.htm
 
 
 

Exhibit 23
 
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
 
We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-180350 and 333-139819) of Northwest Natural Gas Company of our report dated June 28, 2012 relating to the financial statements of Northwest Natural Gas Company Retirement K Savings Plan, which appears in this Form 11-K.
 
 
/s/ PricewaterhouseCoopers LLP
 
PricewaterhouseCoopers LLP
Portland, Oregon
June 28, 2012