UK's energy company, BG Group PLC is offering 12.9 billion Australian dollars for Origin Energy. Origin Energy Australia's biggest gas producer is also the owner of large coalbed methane assets, known as coal-seam. Trillions of cubic metres of natural gas are trapped in Australia's coal seams. Extracting this methane has been considered too costly until now as natural gas prices have risen significantly. There are environmental benefits as coal seam gas does not produce any sulfur dioxide or particulates, and emits only 50% of the carbon dioxide emitted when coal is burned.BG already has plans to spend A$8 billion on one LNG plant with capacity for 4 million metric tons a year of LNG. LNG is natural gas, mostly methane cooled to liquid form for transport by ship. This would use the coal-seam assets purchased from Queensland Gas Company for A$664 million as part of plans to start the LNG plant near the port town of Gladstone, in the state of Queensland. The Origin coal seam assets could provide gas for a second plant at the Queensland site. BG has an LNG supply deal to provide 3 million tons a year to Singapore from 2012. BG has prior focus in the Atlantic region with operations in Brazil, the UK, North Sea, and Trinidad and Tobago, the Queensland deal and acquisition of Origin gives BG an entry in Asian LNG markets. This will be the second biggest takeover of an Australian company after Mexican cement maker Cemex's acquisition of Rinker Group for A$16.7 billion....