Saudi Aramco Base Oil Co., a refining unit of the state-owned oil producer, slumped in its trading debut following an initial public offering that raised $1.32 billion.
Luberef, as the refiner is known, dropped as much as 6.6% in Riyadh to 92.5 riyals ($24.61), bucking the trend for strong debuts in the Gulf region amid the gloomy outlook for the global economy. It trimmed losses to 2.7% by 11:28 a.m. local time, valuing the company at 16.3 billion riyals.