EXHIBIT 21-1 PG ENERGY INC. AND SUBSIDIARY Subsidiaries of the Registrant The following are subsidiaries of the Registrant. Their voting securities are owned 100% by the Registrant and they are incorporated in Pennsylvania. Penn Gas Development Co. (1) Honesdale Gas Company (2) (1) A subsidiary of PG Energy Inc. accounted for on the equity method which has not been consolidated since it is insignificant. (2) A subsidiary of PG Energy Inc. acquired on February 14, 1997, and included in the consolidation of PG Energy Inc.