0001004980-01-500006 424B3 1 20010111 PG&E CORP 0001004980 4931 943234914 CA 1231 424B3 33 333-16255-99 1506994 ONE MARKET SPEAR TOWER SUITE 2400 SAN FRANCISCO CA 94105 4152677000 ONE MARKET SPEAR TOWER SUITE 2400 SAN FRANCISCO CA 94105 PG&E PARENT CO INC 19951214 424B3 1 drpsupp12-22.htm PROSPECTUS SUPPLEMENT DRP