Singapore Petroleum Company (SPC) has reported a sharp rise in its second quarter net profit to S$26.1 million from S$567,000 a year ago, thanks to high oil prices and strong refining margins. (US$1=S$1.7). Revenue surged past the S$ billion mark to nearly S$1.08 billion, up by 13.3% from S$760.924 million in the second quarter of…