Oil demand is growing and the market has turned “calm,” Saudi Arabia’s Oil Minister Ali al-Naimi said. “We want to see calm markets,” al-Naimi told reporters after a speech at a conference in the Red Sea city of Jazan in the nation’s southwest. Saudi Arabia will remain the largest oil exporter, he said, without specifying dates. Brent crude futures, a benchmark for more than half of the world’s oil, has gained 3.6 percent this year after plunging 48 percent in 2014. The contract rose as much as 91 cents in trading Wednesday and was at $59.43 a barrel at 2:04 p.m. in London on the ICE Futures Europe exchange. […]