Saudi shares closed 0.9 percent higher on Saturday, lifted by gains in the petrochemical sector after oil prices rose on Friday. The all-share closed at 6,537 points and the petrochemical index added 1.6 percent to 6,163 points. Heavyweight Saudi Basic Industries (SABIC) gained 2.5 percent and Saudi Arabian Fertilizers Co (SAFCO) added 0.7 percent.