RIYADH: Saudi Arabia’s main index returned to the 12000-point level on the back of a recovery in crude oil prices. Oil prices rose over $1 a barrel on Monday before dropping in volatile Tuesday trade as worries over lower China demand mounted. Brent crude futures edged down to $93.89 a barrel by 9:03 a.m. Saudi time. US West Texas Intermediate crude reached $87.77 a barrel.