U.S. Oil Benchmark Closes At 3 1/2-Month Low, Down Over 16% For The Month by The Options Insider | May 31, 2019 | News Feed https://www.marketwatch.com/story/us-oil-heads-for-worst-may-since-2012-and-worst-monthly-decline-since-november-2019-05-31?mod=mw_latestnews