Here is update on the 400 MBD Yanbu project (with estimated 6.3 kmtpd petcoke) cost which has continued increase since original $US 6bn in 2006 doubled to $US 12 bn in 2008 and then $US 13 bn in 2010 when both partners Saudis-COP sent contractors (then SK Engr & GS Engr) back drawing board cut cost – about the time COP withdrew from the Yanbu project (also when COP withdrew UAE $US 10 bn project). Since this quote is $SR 20 bn its not direct comparison but I am sure its still higher than previous $US 12 bn.