SE Asia Stocks: Mostly lower; Thai index off key 1,200 level

BANGKOK, March 19 — Southeast Asian stocks ended mostly lower today as worries about the impact of high oil prices on profit margins prompted investors to cash in on recent gains. Singapore’s Straits Times Index ended down 0.7 per cent, after Friday’s climb to a seven-month high amid upbeat corporate earnings, while the Philippine index fell 0.4