	 oil netbacks up in u s mediterranean  oil netback values in complex refineries rose slightly in the u s and the mediterranean last friday from the previous week but were lower elsewhere according to calculations by reuters pipeline the soft tone to refining margins reflects large worldwide stocks of petroleum products and thin trading activity traders said in the u s gulf sweet s rose in value by as much as cts a barrel for west texas intermediate an increase of pct from the previous friday while sour s such as alaska north slope were up one pct in the mediterranean netback values were up cts to cts a barrel with arab light up cts a barrel to dlrs a pct increase from the previous friday and urals were up cts a barrel to dlrs a pct increase but netbacks for  oil refined in northern europe was generally lower with brent valued at dlrs off cts from the previous friday and bonny light was off cts to dlrs a barrel refinery netbacks in singapore were also lower with heavier and sour s weakest arab heavy dropped cts to dlrs a barrel and dubai was off cts to dlrs on the u s west coast however netback values for ans cif l a were weaker with weak gasoline prices sending the yield at cracking plants down cts to dlrs from the previous friday as shown below in dlrs a barrel topping cracking the mediterranean region also showed netback values rising last friday over the previous week with the largest gains shown by es sider and the heavier urals  oil which were each up cts a barrel last friday to dlrs and dlrs a barrel respectively netback values for the mediterranean region are shown below in dlrs a barrel grade mar mar feb es sider arab light iran lt kuwait urals cif netbacks in northern europe s refinery region were lower last friday from the previous week with brent falling pct to dlrs a barrel netbacks for other grades of oil refined in northern europe are shown below in dlrs a barrel mar mar feb brent bonny light arab light urals cif refinery netbacks in singapore were also lower with heavier and sour s weakest arab heavy dropped cts to dlrs a barrel and dubai was off cts to dlrs netbacks for other grades of oil refined in singapore are shown below in dlrs a barrel grade mar mar feb attaka arab light oman dubai arab heavy reuter 
