EX-23 4 0004.txt EXHIBIT 23.1 EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated February 18, 2000 relating to the financial statements and financial statement schedules of Northwest Natural Gas Company, which appears in Northwest Natural Gas Company's Annual Report on Form 10-K for the year ended December 31, 1999. /s/ PricewaterhouseCoopers LLP PricewaterhouseCoopers LLP Portland, Oregon September 21, 2000