The Guardian

Serious spills of oil and gas from North Sea platforms are occurring at the rate of one a week, undermining oil companies' claims to be doing everything possible to improve the safety of rigs.

Jake Molloy, general secretary of the Offshore Industry Liaison Committee (OILC), a union representing North Sea workers, said Deepwater Horizon showed that "even the most up-to-date, cutting-edge safety technology can go wrong if it is not maintained properly and not operated by competent people....

Other major oil companies which are high in the spills league include the Danish conglomerate Maersk and Canadian firm Talisman, which both have a rig with five leaks. Four spills came from a rig known as Mungo Etap, which is owned by BP.