QUARTERLY FINANCIAL DATA (UNAUDITED)

12 Months Ended

Dec. 31, 2010

QUARTERLY FINANCIAL DATA (UNAUDITED) [Abstract]

QUARTERLY FINANCIAL DATA (UNAUDITED)

(L) QUARTERLY FINANCIAL DATA (UNAUDITED)

Selected quarterly financial data for 2011 and 2010 are set forth below:

	1st		2nd		3rd		4th
	Quarter		Quarter		Quarter		Quarter
(In Thousands, Except Per Share Amounts)
2011
Operating Revenues	$	561,053	$	314,049	$	321,427	$	373,918
Operating Income	$	99,815	$	40,224	$	34,253	$	45,090
Net Income attributable to UIL Holdings	$	52,044	$	14,156	$	12,180	$	21,276
Earnings Per Share of Common Stock – Basic: (2)	$	1.03	$	0.28	$	0.24	$	0.42
Earnings Per Share of Common Stock – Diluted: (3)	$	1.02	$	0.28	$	0.24	$	0.42
2010
Operating Revenues	$	220,280	$	207,116	$	236,277	$	333,993
Operating Income	$	32,880	$	25,513	$	34,763	$	32,143
Net Income attributable to UIL Holdings (1)	$	15,915	$	11,489	$	16,976	$	10,474
Earnings Per Share of Common Stock – Basic: (2)	$	0.53	$	0.38	$	0.52	$	0.21
Earnings Per Share of Common Stock – Diluted: (3)	$	0.53	$	0.38	$	0.52	$	0.20

(1)  Includes acquisition-related costs in the 2nd, 3rd and 4th quarters of 2010

(2)  Based on weighted average number of shares outstanding each quarter.

(3) ased on weighted average number of shares outstanding each quarter.  Reflecting the effect of dilutive stock options,performance shares and restricted stock.