Plains All American Pipeline Appoints Dean Liollio as New COO

Key Facts

1Plains All American Pipeline announced the appointment of Dean Liollio as EVP and COO, effective October 2, 2026.

2Liollio replaces Chris Chandler, who is resigning to pursue other interests and not due to any disagreement with the company.

Plains All American Pipeline announced the appointment of Dean Liollio as Executive Vice President and Chief Operating Officer, effective October 2, 2026. According to a company statement reported by GlobeNewswire, Liollio replaces Chris Chandler, who is resigning to pursue other interests and not due to any disagreement with the firm.

PAA was trading at $24.095 on September 29, 2026, with a session high of $24.445 and a low of $24.085. The executive transition is viewed as a routine change for the energy infrastructure company, as no disagreements regarding operations or practices were cited in the announcement.