EXHIBIT 21
CONNECTICUT NATURAL GAS CORPORATION AND SUBSIDIARIES
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SUBSIDIARIES OF THE REGISTRANT
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Percentage of Voting
Incorporated Under Securities Owned By
Name of Subsidiary Laws of Immediate Parent
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The Energy Network, Inc.("TEN")(1) Connecticut 100%
The Hartford Steam Company Connecticut 100%
ENServe, Incorporated Connecticut 100%
ENI Gas Services, Inc. Connecticut 100%
TEN Transmission Company Connecticut 100%
CNG Realty Corp. Connecticut 100%
CTG Resources, Inc. (2) Connecticut 100%
The Greenwich Gas System, Inc. (3) Connecticut 100%
<FN>
(1) Formerly Energy Networks, Inc. - The Hartford Steam Company, ENServe,
Incorporated, ENI Gas Services, Inc. and TEN Transmission Company, formerly ENI
Transmission Company, are wholly owned subsidiaries of TEN at September 30, 1996.
(2) CTG Resources, Inc.: Formed, November 1996
(3) The Greenwich Gas System, Inc.: inactive.