G. Gleeson Van Riet became executive vice president and CFO of Swift Energy Co. effective March 20, according to a March 17 press release.

He succeeds Alton Heckaman, the current CFO, who announced his retirement in August 2016. Heckaman will remain with the company through the first quarter of 2017, afterward providing consulting support for the transition, the press release said.

Van Riet was previously the CFO of Sanchez Energy Corp., in positions of increasing responsibility from April 2013 to March 2016.

Previously, he was an investment banker with Credit Suisse and Donaldson, Lufkin & Jenrette in London and Los Angeles, and he has more than 20 years’ experience in finance.

Van Riet earned a dual bachelor’s of arts and bachelor’s of science degree from the University of Pennsylvania, and a master’s of business administration degree from the Harvard Business School.

Swift Energy Co. is based in Houston.