Plains names Dean Liollio EVP and COO effective Oct 2; Chris Chandler resigns to pursue other interests

PLAINS GP HOLDINGS LP

Dean Liollio, 67, appointed Executive Vice President and Chief Operating Officer of Plains All American (PAA) and Plains GP Holdings (PAGP), effective October 2, 2026.
Incumbent EVP/COO Chris Chandler gave notice September 25, 2026 and resigns effective October 2, 2026 to pursue other interests, not due to any disagreement over operations, policies or practices.
Liollio's annual base salary will be $625,000, with a 150% bonus target and a time-based promotional LTIP grant of 150,000 phantom units vesting in August 2029.
Liollio was SVP, Special Projects since June 2024; previously President of Plains Midstream Canada (2020-2024) and President of PAA Natural Gas Storage (2008-2020).
CEO Willie Chiang said Liollio has been on the executive committee and was instrumental in executing recent initiatives; thanked Chandler for his contributions.

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