EXHIBIT 12

NORTHWEST NATURAL GAS COMPANY

Ratios of Earnings to Fixed Charges

^(Unaudited) 

	Year Ended December 31,
In thousands, except share data	2016		2015		2014		2013		2012
Fixed Charges, as defined:
Interest on Long-Term Debt	$	34,508	$	37,918	$	40,066	$	40,825	$	39,175
Other Interest	3,404		3,173		2,718		2,709		2,314
Amortization of Debt Discount and Expense	1,671		1,760		1,963		1,877		1,848
Interest Portion of Rentals	2,048		1,976		2,302		1,910		1,864
Total Fixed Charges, as defined	41,631		44,827		47,049		47,321		45,201
Earnings, as defined:
Net Income	58,895		53,703		58,692		60,538		58,779
Taxes on Income	40,714		35,753		41,643		41,705		43,403
Fixed Charges, as above	41,631		44,827		47,049		47,321		45,201
Total Earnings, as defined	$	141,240	$	134,283	$	147,384	$	149,564	$	147,383
Ratios of Earnings to Fixed Charges	3.39		3.00		3.13		3.16		3.26