EXHIBIT 99.1 CONNECTICUT NATURAL GAS CORPORATION - PROXY FOR ANNUAL MEETING THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS The undersigned hereby appoints V.H. Frauenhofer and J.F. English, Jr. or either of them, with power of substitution to each, attorneys for the undersigned to vote as designated on the reverse hereof and, in their discretion, upon such other business as may properly come before the Meeting, all shares of stock of the undersigned in Connecticut Natural Gas Corporation at the Annual Meeting of Shareholders of the Company to be held at the office of the Company, 100 Columbus Boulevard, Hartford, Connecticut on the 25th day of February, 1997 at 10:30 a.m., or any adjournment thereof, with all the powers the undersigned would possess if personally present thereat. THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED ON THE REVERSE SIDE HEREOF. IF NO DIRECTION IS MADE, THE PROXY WILL BE VOTED "FOR" PROPOSALS 1,2, AND 3. THIS PROXY IS CONTINUED ON THE REVERSE SIDE PLEASE SIGN ON THE REVERSE SIDE AND RETURN PROMPTLY ^ FOLD AND DETACH PROXY CARD HERE ^ RETURN PROXY CARD IN ENCLOSED ENVELOPE AFTER COMPLETING, SIGNING AND DATING Admission Ticket CONNECTICUT NATURAL GAS CORPORATION 1997 Annual Meeting of Shareholders Tuesday, February 25, 1997 10:30 a.m. Connecticut Natural Gas Corporation 100 Columbus Boulevard Hartford, Connecticut PLEASE ADMIT NON-TRANSFERABLE Please mark your votes as indicated in this example [X] The Board of Directors Recommends a Vote for Items 1, 2 and 3 WITHHELD FOR FOR ALL Item 1 - ELECTION OF DIRECTORS duly nominated: J. English, Jr., V. Frauenhofer, [] [] L. Tanner, A. Marquardt. WITHHELD FOR: (Write that nominee's name in the space provided below). _______________________________ FOR AGAINST ABSTAIN Item 2 - THE RATIFICATION OF PROPOSAL TO APPROVE THE PLAN AND EXCHANGE AGREEMENT. [] [] [] Item 3 - THE RATIFICATION OF PROPOSAL TO APPROVE THE SELECTION OF ARTHUR ANDERSEN LLP AS AUDITORS FOR FISCAL YEAR ENDED SEPTEMBER 30, 1997. [] [] [] IN THEIR DISCRETION THE PROXIES ARE AUTHORIZED TO VOTE UPON SUCH OTHER BUSINESS AS MAY PROPERLY COME BEFORE THE MEETING AND AT ANY ADJOURNMENT OR ADJOURNMENTS THEREOF. WILL ATTEND MEETING [] Signature(s) ____________________________________________________ Date_______ ^ FOLD AND DETACH PROXY CARD HERE ^ RETURN PROXY CARD IN ENCLOSED ENVELOPE AFTER COMPLETING, SIGNING AND DATING