Plains names Dean Liollio as chief operating officer, replacing Chris Chandler
PAGP•Plains GP Holdings named Dean Liollio executive vice president and chief operating officer, effective Oct. 2, 2026, replacing Chris Chandler, who is resigning to pursue other interests.
1. Leadership change
Liollio has served as senior vice president of special projects since June 2024. His earlier roles at Plains included president of Plains Midstream Canada, PAA Natural Gas Storage and Plains Gas Solutions.
