Constantine Liollio

Constantine Liollio

Chief Operating Officer at PLAINS ALL AMERICAN PIPELINE, L.P.

Net worth: 12 M $ as of 31/10/2026

67 year
Industrial Services
Commercial Services
Utilities

Profile

Constantine S. Liollio is a businessperson who has been at the helm of 8 different companies and occupies the position of President & Director at PNGS GP LLC and President for Plains Midstream Canada ULC. He is also Member-Parish Council at Annunciation Greek Orthodox Cathedral and on the board of 5 other companies. In his past career he occupied the position of President & Chief Executive Officer at CenterPoint Energy, Inc., President, Chief Executive Officer & Director at EnergySouth, Inc., President & Chief Executive Officer for Spire Gulf, Inc., President & Director at PAA Natural Gas Storage LP, President at PAA Natural Gas Storage LLC, Chairman of Texas Gas Association and Director-Mobile Area Council at Boy Scouts of America. Constantine S. Liollio received an undergraduate degree from Texas A&M University.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
02/10/2026 3,45,635 ( 0.05% ) 9 M $ 31/10/2026
29/09/2026 33,262 ( 0.04% ) 2 M $ 31/10/2026
02/10/2026 540 ( 0% ) 15 331 $ 31/10/2026

Constantine Liollio active positions

CompaniesPositionStart
PLAINS ALL AMERICAN PIPELINE, L.P. Chief Operating Officer 02/10/2026
PLAINS GP HOLDINGS, L.P. Chief Operating Officer 02/10/2026
HANCOCK WHITNEY CORPORATION Director/Board Member 01/10/2016
Director/Board Member -
Director/Board Member 27/10/2016
Corporate Officer/Principal -

Former positions of Constantine Liollio

CompaniesPositionEnd
President 31/01/2020
Chief Executive Officer 01/10/2008
Corporate Officer/Principal -
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See the detail of Constantine Liollio's experience

Education of Constantine Liollio

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

Connections

63

1st degree connections

22

1st degree companies

Male

Female

Members of the board

Executives

Linked companies

Private companies22

Finance

Utilities

Utilities

Industrial Services

Utilities

Industrial Services

Industrial Services

Industrial Services

Finance

Consumer Services

Commercial Services

Commercial Services

Commercial Services

Industrial Services

Health Services

Transportation

Consumer Services

Utilities

Commercial Services

Commercial Services

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