(EnergyAsia, February 26, Tuesday) — Thai Oil, the country’s largest oil refiner, said strong refining margins boosted its 2007 net profit by almost 9% to 19.2 billion baht. (US$1=32 baht). Its revenue fell 6.5% to 261 billion baht while expenses were also down, by 8.8%, to 237 billion baht.Margins rose along with crude oil costs,…