The Guardian | Australia on alert for potential oil spill off Great Barrier Reef The Guardian Australian authorities remain on alert for a potential oil spill in waters around the Great Barrier Reef despite finding little sign of a reported kilometre-long slick off the north Queensland coast. Maritime safety authorities in Queensland confirmed ... Oil spill confirmed along Great Barrier Reef Oil found in waters near Great Barrier Reef Great Barrier Reef oil spill: aircraft to sweep area as slick confirmed |