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Headshot of John Ciolek

John Ciolek

Managing Director, Credit Suisse

John A. Ciolek is a Managing Director of Investment Banking in the oil and gas group at Credit Suisse. He joined Credit Suisse in August 2015 from J.P. Morgan Chase & Co., where he had served since 2011 as head of the Midstream/MLP business within the North American energy group. Mr. Ciolek previously served for fourteen years with Citigroup’s Global Energy Group, and before that at Paine Webber and Salomon Brothers, Inc.