Various Northeast Asian end-users saw their crude oil term allocations from Saudi Arabia slashed for September, with two South Korean refining companies receiving around 10% cuts in monthly contract volumes for light and medium sour grades, market sources said Tuesday.  South Korea’s two biggest refiners SK Energy and GS Caltex have received around 10% September allocation cuts from Saudi Aramco, but Hyundai Oilbank is expected to be given full term volume that it had requested for the month, South Korean trade sources with direct knowledge of the matter told S&P Global Platts.  The sources indicated that the reduction in crude allocations for September affected various sour grades including Saudi Arab Extra Light, Arab Light and Arab Medium.  “Luckily, [Hyundai Oilbank] did not see any notable cuts in September Saudi crude allocation because [the company] only nominated [relatively] smaller amount for the month,” a company source said.