Houston-based Tidewater Inc. (NYSE: TDW) completed its acquisition of Houston-based GulfMark Offshore Inc. on Nov. 15, as expected. Additionally, Tidewater announced that Quintin Kneen, previously president and CEO of GulfMark, had been named Tidewater's CFO, effective immediately. He replaces Quinn Fanning, who has stepped down from the role but will remain with the company during the transition period. "Quinn has been a key member of the Tidewater executive management team for many years,"...