Sean Kolassa – Biography

Last update: April 23, 2026

Executive profile

Sean was Vice President, Gas Transmission and Distribution Construction at Pacific Gas and Electric Company, and Director, Pipeline Financial Planning and Analysis at El Paso Corporation. Sean Kolassa joined Hilcorp in 2014.

Sean Kolassa is currently

President at Harvest Midstream - View - Harvest Midstream org chart



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Education

Sean Kolassa has a Bachelor of Science in Chemical Engineering from University of Michigan in 1997 and a Master of Business Administration from University of Denver - Daniels College of Business in 2009.

They have also studied at University of Michigan :

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They have also studied at University of Denver - Daniels College of Business :

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The colleagues of Sean Kolassa

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Industry Colleagues
  • In the Oil & Gas industry, Sean Kolassa has 23,579 colleagues in 1,350 companies located in 105 countries. 12,281 executive movements have been recorded in the last 12 months. Learn more about Oil & Gas.

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Get in Touch

Here are a few tips for establishing great contacts.

Through the switchboard, call Harvest Midstream at +1 713... and ask for Sean Kolassa.

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