Exhibit 11.1

UNITIL CORPORATION

COMPUTATION IN SUPPORT OF EARNINGS PER SHARE

	Year Ended December 31,
	2016		2015		2014
EARNINGS PER SHARE (000’s, except per share data)
Net Income	$	27,124	$	26,264	$	24,758
Less: Dividend Requirements on Preferred Stock		11		12		14
Net Income Applicable to Common Stock	$	27,113	$	26,252	$	24,744
Average Number of Common Shares Outstanding—Basic		13,990		13,917		13,843
Dilutive Effect of Stock Options and Restricted Stock		6		3		4
Average Number of Common Shares Outstanding—Diluted		13,996		13,920		13,847
Earnings Per Share—Basic	$	1.94	$	1.89	$	1.79
Earnings Per Share—Diluted	$	1.94	$	1.89	$	1.79