On March 16, 2009 Unitil Corporation entered into an amendment to its 364-day revolving credit facility with Bank of America, as administrative agent, and a syndicate of lenders, which was originally entered into on November 26, 2008 and previously amended as of January 2, 2009.

The amendment increases the aggregate commitments under the facility from $60 million to $80 million and establishes commitment fees and interest rates associated with the amended facility. On July 1, 2009 the aggregate commitments will be restored to the original $60 million. Except as expressly amended by the amendment, all other terms and conditions of the credit facility remain in full force and effect.

The foregoing description of the amendment to the credit facility is qualified in its entirety by reference to the full text of the amendment, which is filed herewith as Exhibit 10.1 to this Current Report on Form 8-K.

(d) Exhibits

Exhibit No.   Description

10.1          Amendment Agreement dated as of March 16, 2009 to the Credit Agreement
              dated as of November 26, 2008 and previously amended as of January 2,
              2009.