Russia, Iraq and the United Arab Emirates are among the handful of oil producers benefiting from the recent attack on Saudi Arabia’s largest oil-processing facility, as Asian buyers seek alternatives to the kingdom’s highest-quality crude. Global oil markets are beginning to feel the ripple effects of the attack two weeks ago on Saudi Arabian Oil Co.’s Abqaiq oil-processing facility and Khurais oil field. Missiles knocked out 5.7 million barrels a day of Saudi production. …