SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-K/A


[  X  ] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
        OF THE SECURITIES EXCHANGE ACT OF  1934
        For the fiscal year ended December 31, 1999

        OR
[    ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d)
        OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number  1-8858

UNITIL CORPORATION
(Exact name of registrant as specified in its charter)

New Hampshire                                           02-0381573
(State or other jurisdiction of                      (I.R.S. Employer
incorporation or organization)                        Identification No.)

6 Liberty Lane West, Hampton, New Hampshire              03842-1720
(Address of principal executive offices)                 (Zip Code)

Registrant's telephone number, including area code:  (603) 772-0775

Securities registered pursuant to Section 12(b) of the Act:
 Title of Each Class                 Name of Exchange on Which Registered
 Common Stock, No Par Value                American Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:   NONE

Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act
of 1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days.

Yes  X         No

Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to
the best of registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendments to this Form 10-K [  X  ]

Based on the closing price of March 1, 2000, the aggregate market value of
common stock held by non-affiliates of the registrant was $152,713,587.

The number of common shares outstanding of the registrant was 4,717,022 as
of March 1, 2000.

Documents Incorporated by Reference:

Portions of the Proxy Statement relating to the Annual Meeting of
Shareholders to be held April 20, 2000, are incorporated by reference into
Part III of this Report.



This Amendment reflects the addition of the Report of Independent Certified
Public Accountants to Part II, Item 8 of Form 10-K for the fiscal year ended
December 31, 1999. The report was inadvertently omitted from the original
10-K filing on March 30, 2000.


SIGNATURE

Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, as amended, the Registrant has duly caused this report
to be signed on its behalf by the undersigned thereunto duly authorized.

						Unitil Corporation


Date   April 13, 2000                   By /s/ Anthony J. Baratta, Jr.
                                               Anthony J. Baratta, Jr.
                                               Executive Vice President and
                                               Chief Financial Officer



Report of Independent Certified Public Accountants


To the Shareholders of Unitil Corporation:

We have audited the accompanying consolidated balance sheets and consolidated
statements of capitalization of Unitil Corporation and subsidiaries as of
December 31, 1999 and 1998, and the related consolidated statements of
earnings, cash flows and changes in common stock equity for each of the
three years in the period ended December 31, 1999. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based
on our audits.

We conducted our audits in accordance with auditing standards generally
accepted in the United States. Those standards require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining,
on a test basis, evidence supporting the amounts and disclosures in the
financial statements. An audit also includes assessing the accounting
principles used and significant estimates made by management, as well as
evaluating the overall financial statement presentation. We believe our
audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the consolidated financial position of Unitil
Corporation and subsidiaries as of December 31, 1999 and 1998, and the
consolidated results of their operations and their consolidated cash flows
for each of the three years in the period ended December 31, 1999, in
conformity with accounting principles generally accepted in the United
States.

We have also audited Schedule VIII of Unitil Corporation and subsidiaries as
of December 31, 1999 and for the three years then ended included in Part IV
Item 14. In our opinion, the schedule presents fairly, in all material
respects, the information required to be set forth therein.





GRANT THORNTON LLP

Boston, Massachusetts
February 7, 2000