UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM U-9C-3 QUARTERLY REPORT PURSUANT TO RULE 58 UNITIL CORPORATION (Name of Registered Holding Company) 6 Liberty Lane West, Hampton, New Hampshire 03842-1720 (Address of principal executive offices) ITEM 1 - ORGANIZATION CHART Not applicable as this filing is for the fourth quarter of the fiscal year of the registered holding company. ITEM 2 - ISSUANCES AND RENEWALS OF SECURITIES AND CAPITAL CONTRIBUTIONS Associate Reporting company company Type Net advancing receiving of Change funds funds transaction in contributions Unitil Unitil Capital contribution None Corporation Resources Inc. ITEM 3 - ASSOCIATE TRANSACTIONS Part I - Transactions Performed by Reporting Companies on Behalf of Associate Companies None. Part II - Transactions Performed by Associate Companies on Behalf of Reporting Companies Associate Reporting company company Types of Direct Indirect Total rendering receiving services costs costs Cost of amount services services rendered charged charged capital billed Unitil Unitil Energy $8,650 $9,843 $0 $18,493 Service Resources Marketing Corp. Inc. and Consulting Staff involved in providing service to Unitil Resources, Inc. (Unitil Resources) are located at Unitil Service Corp. (Unitil Service). Service is provided to Unitil Resources pursuant to a service agreement between Unitil Service and Unitil Resources dated July 1, 1993. Consulting services provided by Unitil Service during the fourth quarter of 1998 included regulatory, finance, accounting, marketing, energy management and administrative services. ITEM 4 - SUMMARY OF AGGREGATE INVESTMENT (Dollars in Thousands) Investments in Energy-related Companies: Total consolidated capitalization as of December 31, 1998 $153,241 Total capitalization multiplied by 15% 22,986 Greater of $50 million or line 2 $50,000 Total current aggregate investment: Energy-related business: Unitil Resources, Inc. 590 Total current aggregate investment 590 Difference between the greater of $50 million or 15% of capitalization and the total aggregate investment of the registered holding company system (line 3 less line 4) $49,410 Investments in Gas-related Companies None. ITEM 5 - OTHER INVESTMENTS Other Other Reason for Major line of investment in investment in difference in energy-related last U-9C-3 this U-9C-3 other business report report investment Energy Marketing $10,000 * $0 n/a and Consulting * The initial investment by Unitil Corporation in Unitil Resources, Inc. was $10,000 and was made prior to the effective date of Rule 58. ITEM 6 - FINANCIAL STATEMENTS AND EXHIBITS A. Financial Statements Not applicable as this filing is for the fourth quarter of the fiscal year of the registered holding company. B. Exhibits None. SIGNATURE Pursuant to the requirements of the Public Utility Holding Company Act of 1935, the undersigned company has duly caused this Certificate to be signed on its behalf by the undersigned thereunto duly authorized. Unitil Corporation By: /s/ Mark H. Collin Mark H. Collin Treasurer Dated: March 26, 1999 SIGNATURE Pursuant to the requirements of the Public Utility Holding Company Act of 1935, the undersigned company has duly caused this Certificate to be signed on its behalf by the undersigned thereunto duly authorized. Unitil Corporation By: Mark H. Collin Treasurer Dated: March 26, 1999