0000950149-97-001263 8-A12B 2 19970618 NYSE CALPINE CORP 0000916457 4991 770031605 CA 1231 8-A12B 34 001-12079 97625769 50 WEST SAN FERNANDO ST SAN JOSE CA 95113 4089955115 50 W SAN FERNANDO SUITE 500 SAN JOSE CA 95113 8-A12B 1 000095014997001263-001-seq1-8-a12b.txt FORM 8-A EX-4 2 000095014997001263-002-seq2-ex-4.txt RIGHTS AGREEMENT