RIYADH: The Saudi stock market ended Tuesday’s session on a downward note, with oil prices tumbling following a steep rise. The Tadawul All Share Index dipped 0.6 percent at 12,455, while the parallel market, Nomu, advanced 0.39 percent at 21,595. Oil giant Saudi Aramco ended the session with a 0.78 percent decline, while Methanol Chemicals Co. dropped 1.41 percent. In the