Saudi Arabian Oil Minister Ali al-Naimi said Saturday that he is optimistic crude-oil prices will remain stable next year after the Organization of the Petroleum Exporting Countries decided earlier this month to keep its output ceiling unchanged. “The ceiling of the group was kept unchanged because the oil market is in a stable condition and oil prices are suitable for everyone,” Mr. Naimi said at an energy meeting in Doha. “I’m optimistic about the future, as I see that the stability of the petroleum market will continue next year.” Some officials from OPEC, a group of some of the world’s largest oil producers, have been publicly and privately jostling over whether the group should collectively cut back production in the event that global oil output rises significantly, threatening to weaken prices. Gulf OPEC officials have said that Saudi Arabia, the cartel’s kingpin, won’t unilaterally cut oil […]