Exhibit 11.1

UNITIL CORPORATION

COMPUTATION IN SUPPORT OF EARNINGS PER SHARE

	Year Ended December 31,
	2020		2019		2018
EARNINGS PER SHARE (000’s, except per share data)
Net Income	$	32,166	$	44,238	$	33,041
Less: Dividend Requirements on Preferred Stock		11		11		11
Net Income Applicable to Common Stock	$	32,155	$	44,227	$	33,030
Average Number of Common Shares Outstanding—Basic		14,951		14,894		14,824
Dilutive Effect of Stock Options and Restricted Stock		1		6		5
Average Number of Common Shares Outstanding—Diluted		14,952		14,900		14,829
Earnings Per Share—Basic	$	2.15	$	2.97	$	2.23
Earnings Per Share—Diluted	$	2.15	$	2.97	$	2.23