Nature of Operations and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2013

Accounting Policies [Abstract]

Intercompany Transactions

Accounts receivable for these services are presented in the table below (thousands of dollars):

	June 30, 2013		December 31, 2012
Accounts receivable for NPL services	$	9,136	$	8,179

Schedule of Other Property and Investments

Other property and investments includes (millions of dollars):

	June 30, 2013		December 31, 2012
NPL property and equipment	$	305	$	287
NPL accumulated provision for depreciation and amortization		(149)		(136)
Net cash surrender value of COLI policies		86		80
Other property		10		11
Total	$	252	$	242

Other Income (Deductions)

The following table provides the composition of significant items included in Other income (deductions) on the consolidated statements of income (thousands of dollars):

	Three Months Ended				Six Months Ended				Twelve Months Ended
	June 30				June 30				June 30
	2013		2012		2013		2012		2013		2012
Change in COLI policies	$	1,800	$	(1,900)	$	5,600	$	3,300	$	8,900	$	(800)
Interest income		144		279		264		505		683		800
Pipe replacement costs		(36)		(1,033)		(121)		(1,042)		(1,759)		(3,956)
Miscellaneous income and (expense)		(456)		164		(222)		175		(830)		209
Total other income (deductions)	$	1,452	$	(2,490)	$	5,521	$	2,938	$	6,994	$	(3,747)