Exhibit 12.1

UNITIL CORPORATION

COMPUTATION IN SUPPORT OF RATIO OF EARNINGS TO FIXED CHARGES

	Year Ended December 31,
(000’s, except ratios)	2005		2004		2003		2002		2001
Earnings:
Net Income before Extraordinary Item	$	8,553	$	8,226	$	7,958	$	6,088	$	5,027
Extraordinary Item, net		—		—		—		—		(3,937	)
Net Income, per Consolidated Statement of Earnings		8,553		8,226		7,958		6,088		1,090
Federal and State Income Taxes included in :
Operations		4,275		4,206		3,551		2,490		3,421
Investment Write-down		—		—		—		—		1,236
Extraordinary Item		—		—		—		—		1,388
Interest on Long-Term Debt		8,319		8,394		8,088		8,254		7,637
Amortization of Debt Discount Expense		104		98		82		81		72
Other Interest		1,046		629		1,070		1,038		1,895
Total	$	22,297	$	21,553	$	20,749	$	17,951	$	16,739
Fixed Charges:
Interest of Long-Term Debt	$	8,319	$	8,394	$	8,088	$	8,254	$	7,637
Amortization of Debt Discount Expense		104		98		82		81		72
Other Interest		1,046		629		1,070		1,038		1,895
Pre-tax Preferred Stock Dividend Requirements		234		325		391		419		417
Total	$	9,703	$	9,446	$	9,631	$	9,792	$	10,021
Ratio of Earnings to Fixed Charges		2.30		2.28		2.15		1.83		1.67