AAON (AAON) said Friday it has increased the size of its board to nine members and appointed Chief Executive Matt J. Tobolski as the ninth director, effective May 13.

The company said Tobolski on May 13 succeeded Gary Fields, who remains a director on the company's board and serve as a special advisor to the board.

AAON maintained its quarterly cash dividend of $0.10 per share, payable June 27 to shareholders of record as of June 6.