Accidental spills from oil platforms nowadays account for approximately 3% of oil spills in the oceans. Prominent offshore oil platform spills typically occurred as a result of a blowout. They can go on for months until relief wells have been drilled, resulting in enormous amounts of oil leaked. Notable examples of such oil spills are Deepwater Horizon and Ixtoc I. While technologies for drilling in deep water have significantly improved in the past 30-40 years, oil companies move to drilling sites in more and more difficult places. This ambiguous development results in no clear trend regarding the frequency of offshore oil platform spills.