EXHIBIT 13

                                    AFFIDAVIT
                                    ---------


THE STATE OF TEXAS   )
                     )
COUNTY OF HARRIS     )

     Rodney  E.  Gerik,  being  first  duly  sworn,  states that he is Associate
General  Counsel, Duke Energy Corporation; that he is authorized to execute this
Affidavit on behalf of Duke Energy Corporation; and that he is familiar with the
sale  by Westcoast Energy Inc. ("Westcoast Energy") of its interests in Shanghai
WEI-Gang  Energy  Company  Ltd.  ("WEI-Gang"),  Centra Gas British Columbia Inc.
("Centra  Gas"),  and Centra Gas Whistler Inc. ("Whistler"); and further states:

     1.   On  March  6,  2002, Westcoast Energy sold its interest in WEI-Gang to
          PSEG  Shanghai  BFG  Company,  a  Cayman  Islands  corporation;

     2.   On  March  7,  2002,  Westcoast Energy sold its interest in Centra Gas
          and  Whistler  to  B.C.  Gas  Inc.,  a  British  Columbia corporation.


                                                DUKE ENERGY CORPORATION.

                                                /s/  Rodney E. Gerik
                                                --------------------------------
                                                Rodney E. Gerik
                                                Associate General Counsel
                                                Duke Energy Corporation


Subscribed and sworn to before me this    7th     day of March,  2002.
                                       ---------

                                                /s/  Felicia C. Lee
                                                --------------------------------
                                                Notary Public, State of Texas


                                                My Commission Expires:

                                                     02-23-2004
                                                --------------------------------