Wall Street JournalOil Prices Seesaw on China HopesWall Street JournalLONDON—Oil prices swung between gains and losses on Wednesday receiving support from comments by Chinese officials, but remained under pressure from the continuing worries about the glob …

Wall Street JournalOil Prices Rise on China HopesWall Street JournalLONDON—Oil prices were up slightly on Wednesday, nudged higher by comments from Chinese officials that raised hopes of more economic stimulus from the world's second-biggest economy an …