Despite strained U.S.-Saudi relations on several fronts, Saudi Arabia’s oil giant Aramco continues to see the U.S. market as strategic and continues with plans to expand the biggest U.S. refinery with a petrochemical complex, Abdulaziz Al-Judaimi, senior vice president of Downstream at Aramco, told S&P Global Platts in an interview published on Monday. The largest U.S. refinery and the largest refinery in North America is the 630,000-bpd Motiva refinery in Port Arthur, Texas, controlled by Saudi Aramco. Motiva Enterprises plans to invest…