RIYADH: Saudi Arabia’s main index declined on Tuesday due to concern over oil price shifts and mixed earnings reports. The Tadawul All Share Index declined 0.97 percent to end at 11,486, while the parallel market, Nomu, dropped 1.28 percent to finish at 19,251. Saudi oil giant Aramco ended the session 0.14 percent lower, a week after announcing that its profit had surged 39