German reinsurer Hannover Re said at the weekend that it anticipates a "large claim" as a result of the sinking of the Deepwater Horizon oil rig last week. It said that a precise analysis was not yet possible. A "large claim" is one that is likely to cost Hannover Re more than €5m ($6.8m), the company said. Meanwhile, a statement last week from the US Coastguard that the sunken rig did not appear to be leaking oil appears to have been optimistic. Up to 1,000 barrels, 42,000 gallons, a day are now thought to be leaking into the Gulf of Mexico, although current winds are not pushing it into the Louisiana coast. The Transocean rig is contracted to BP, which has sent ships and aircraft to contain the slick. However, poor weather over the weekend stopped dispersal work. The slick currently covers about 400 square miles of sea. The 11 people missing after the blast are now presumed dead. Deepwater Horizon was about 52 miles southeast of Venice, Louisiana, when the explosion occurred last Tuesday.