Segment Information

6 Months Ended

Jun. 30, 2012

Disclosure Segment Information [Abstract]

Segment Information Text Block

4.       Segment Information

We operate in two primary reportable business segments, which we refer to as “utility” and“gas storage.”  We also have other investments and business activities not specifically related to one of these two reporting segments, which we aggregate and report as “other.”  We refer to our gas storage and other business segments as “non-utility.” Our gas storage segment includes:NWN Gas Storage, which isa wholly-owned subsidiary of NWN Energy;Gill Ranch, which is a wholly-owned subsidiary of NWN Gas Storage;the non-utility portion of our underground storage facility in Oregon (Mist); and revenues from third-party asset management services. Our other segment includes NNG Financial and our equity investment in PGH, which is pursuing development ofthe Palomar pipeline project.For the periods presented, intersegment transactions were insignificant. For further discussion of our segments, see Note 4 in our 2011 Form 10-K.

The following table presents summary financial information about the reportable segments for the three andsix months ended June 30, 2012 and 2011:

	Three Months Ended June 30,
			Non-Utility
Thousands		Utility		Gas Storage		Other		Total
2012
Net operating revenues	$	61,440	$	7,996	$	43	$	69,479
Depreciation and amortization		16,478		1,621		-		18,099
Income from operations		8,547		3,264		28		11,839
Net income (loss)		312		1,124		(27)		1,409
2011
Net operating revenues	$	60,048	$	7,197	$	(13)	$	67,232
Depreciation and amortization		15,946		1,600		-		17,546
Income (loss) from operations		9,667		3,017		(31)		12,653
Net income (loss)		1,090		1,315		(212)		2,193
	Six Months Ended June 30,
			Non-Utility
Thousands		Utility		Gas Storage		Other		Total
2012
Net operating revenues	$	194,590	$	14,675	$	82	$	209,347
Depreciation and amortization		32,816		3,233		-		36,049
Income from operations		84,511		5,943		51		90,505
Net income (loss)		40,103		1,930		(17)		42,016
Total assets at June 30, 2012		2,331,610		287,622		15,909		2,635,141
2011
Net operating revenues	$	189,210	$	12,501	$	29	$	201,740
Depreciation and amortization		31,860		2,995		-		34,855
Income (loss) from operations		85,791		4,733		(9)		90,515
Net income (loss)		41,220		2,003		(257)		42,966
Total assets at June 30, 2011		2,247,349		252,393		22,252		2,521,994
Total assets at December 31, 2011	$	2,435,888	$	294,637	$	16,049	$	2,746,574