QUARTERLY FINANCIAL DATA (unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

QUARTERLY FINANCIAL DATA (unaudited)

Schedule of quarterly financial data

The following sets forth selected unaudited financial data for the four quarters in 2012 and 2011:

Quarter ended (millions of dollars except per common unit amounts)	Mar 31	Jun 30	Sep 30	Dec 31
2012
Equity earnings	38	31	31	29
Transmission revenues	16	16	17	16
Net income	39	33	35	30
Net income per common unit	$0.71	$0.60	$0.64	$0.56
Cash distribution paid	42	42	43	43
2011
Equity earnings(a)	39	37	40	38
Transmission revenues	17	18	18	17
Net income(a)	42	36	41	38
Net income per common unit	$0.90	$0.69	$0.75	$0.70
Cash distributions paid	35	35	42	42

^(a)

25 percent interests in each of GTN and Bison were acquired May 2011.