0001172661-16-004361 SC 13G 1 20161212 20161212 CALPINE CORP 0000916457 4911 770212977 DE 1231 SC 13G 34 005-48317 162046125 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 SailingStone Capital Partners LLC 0001608904 464114066 DE 1231 SC 13G ONE CALIFORNIA STREET 30TH FLOOR SAN FRANCISCO CA 94111 (415) 429-5178 ONE CALIFORNIA STREET 30TH FLOOR SAN FRANCISCO CA 94111 SC 13G 1 cpn113016.htm