Philip Ackerman stepped down from National Fuel Gas Co.'s board of directors, effective at the start of the company's 2019 annual shareholder meeting on March 7, according to a March 11 SEC filing.

During the meeting, the company's stockholders also elected David Carroll, Steven Finch, Joseph Jaggers III and David Smith for additional three-year terms on the board.

National Fuel has five operating segments, which include exploration and production, pipeline and storage, gathering, utility and energy marketing.