Property, Plant and Equipment

6 Months Ended

Jun. 30, 2011

Property Plant And Equipment [Abstract]

Property Plant And Equipment Disclosure Text Block

11. Property, Plant and Equipment

The following table sets forth the major classifications of our property, plant and equipment and accumulated depreciation as of June 30, 2011 and 2010 and December 31, 2010:

		June 30,				December 31,
Thousands		2011		2010		2010
Utility plant in service		$	2,281,407	$	2,218,660	$	2,247,952
Utility construction work in progress			32,814		30,086		29,324
Less: Accumulated depreciation			730,199		700,202		710,214
	Utility plant-net		1,584,022		1,548,544		1,567,062
Non-utility plant in service			290,035		66,862		290,038
Non-utility construction work in progress			7,891		167,218		9,088
Less: Accumulated depreciation			14,730		10,530		12,025
	Non-utility plant-net	$	283,196	$	223,550	$	287,101

Total property, plant and equipment		$	1,867,218	$	1,772,094	$	1,854,163

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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