(EnergyAsia, May 16, Friday) — Thailand’s leading oil company, PTT, last week raised pump prices by 0.50 baht per litre. Its two main gasoline grades now cost 37.09 baht and 35.99 per litre, while its two diesel fuels are priced at 33.24 and 33.94 per litre. (US$1=32 baht). Chaivat Churitti, PTT’s senior executive vice president,…