BG's coal-seam gas exports delayed by slow plant start-up QUEENSLAND will have to wait until at least the December quarter for its first coal-seam gas exports, with British gas giant BG Group flagging an extended start-up period for its $US20.4 billion ($23.5bn) Queensland Curtis LNG plant at Gladstone. BG Group, expected to be the first of three giant liquefied natural gas projects to ship from Gladstone Harbour's Curtis Island, has narrowed what was a second-half 2014 target for first exports to the last quarter.