U.S.-based Tidewater, one of the world's largest owners of offshore support vessels, announced Thursday that Larry T. Rigdon has chosen not to stand for reelection as non-executive chairman and will retire from the board at the company's annual stockholders meeting on June 26…<p><p>https://www.marinelink.com/news/larry-rigdon-retires-tidewater-board-504716</p></p>