Exhibit 11.1

UNITIL CORPORATION

COMPUTATION IN SUPPORT OF EARNINGS PER SHARE

	Year Ended December 31,
	2015		2014		2013
EARNINGS PER SHARE (000’s, except per share data)
Net Income	$	26,264	$	24,758	$	21,629
Less: Dividend Requirements on Preferred Stock		12		14		14
Net Income Applicable to Common Stock	$	26,252	$	24,744	$	21,615
Average Number of Common Shares Outstanding—Basic		13,917		13,843		13,773
Dilutive Effect of Stock Options and Restricted Stock		3		4		2
Average Number of Common Shares Outstanding—Diluted		13,920		13,847		13,775
Earnings Per Share—Basic	$	1.89	$	1.79	$	1.57
Earnings Per Share—Diluted	$	1.89	$	1.79	$	1.57