Gulf markets ended lower on Thursday as the Houthis threatened more attacks on Saudi Arabia, putting the country's benchmark index on track for a sixth weekly loss.The Saudi index dropped 0.3%, pulled down by a 3.1% slide in ACWA Power Company and 0.4% fall in oil behemoth Saudi Aramco.On Wednesday…<p><p>https://www.marinelink.com/news/gulf-markets-lower-houthis-continue-543721</p></p>