Oil prices for 21 May:May 22, 2018, 10:21Oil Prices Up STEPANAKERT, MAY 22, ARTSAKHPRESS: WTI Crude Oil (Light Sweet) price at NYMEХ Stock Exchange up by 1.54% to $72.45 per barrel. Brent Crude Oil price at London’s IСE Stock Exchange up by 1.08% to $79.36 per barrel. Tweet