Saudi Aramco Shell Refinery (Sasref) has announced that its refinery will reach full production of ultra-low sulphur diesel by the end of this month after starting trial production, Reuters has reported. The new unit at the 305,000 barrels per day Sasref crude refinery has the potential to produce about 100,000 bpd of ultra-low sulphur diesel, making it among the first producers of diesel in the kingdom with sulphur less than 10 ppm.