Perpetual Energy Inc. announced the planned retirement of Vice President Finance and Chief Financial Officer Mark Schweitzer. Mr. Schweitzer joined the company in January 2017 and will remain in his existing capacity until the spring of 2021. announce that one of Directors, Ryan Shay, will be joining the Perpetual team as Vice President Finance and CFO upon Mark's retirement. Mr. Shay brings more than 25 years of industry experience and was most recently Managing Director, Head of Investment Banking at Cormark Securities.