ty rankings Natum ps 83% Natumlps 57% Calpine (CPN) Dynegy (DYN) Oil 30% Coal Rencwabk 3% Dual 14% Oil 13% Sauce: Company repeat aid. Morgan estmatee Note: As et 30-Sep-I t. Naturalgas 36% Nature Isas 46% Nuckar 5% GenOn (GEN) NRG Energy (NRG) Oil 17% Renewable 2% Rcncwabk 18% Oil 3% Na