GS-Caltex Corp., South Korea's second-largest refiner by sales, said Thursday its second-quarter net profit jumped 74 percent from a year earlier as high oil prices pushed up the prices of inventories and completion of maintenance work boosted sales.
Net profit for the three months that ended on June 30 came to 235.1 billion won (US$210 million), up from 135.3 billion won a year earlier, the company said.
Operating profit soared 178.4 percent on-year to 584.6 billion won in the second quarter. Sales rose 30.4 percent on-year to 9.05 trillion won.