(EnergyAsia, September 20, Thursday) — PetroChina has reached a “preliminary” agreement to import US$37 billion worth of liquefied natural gas (LNG) from Australia’s Woodside Petroleum over a period of 15-20 years. PetroChina will import an average three million tonnes of LNG each year from the Woodside-led Browse project.Browse, one of Woodside’s biggest undeveloped gas assets,…