Exxon Valdez oil spill a number of recommendations, such as changes to the work patterns of Exxon crew in order to address the causes of the accident. In response to the spill, the United States Congress passed the Oil Pollution Act of 1990 (OPA). The legislation included a clause that prohibits any vessel that, after March 22, 1989, has caused an oil spill of more than in any marine area, from operating in Prince William Sound. In April 1998, the company argued in a legal action against the Federal government that the ship should be allowed back into Alaskan waters. Exxon claimed OPA was
Montara oil spill causes and effects of the spill. Since the spill in August 2009 Martin Ferguson has signed 120 new gas and oil exploration licenses but has still not imposed any regulations on deep sea oil drilling. Elmer Danenberger, who used to be in charge of regulatory affairs for the U.S. Minerals Management Service, claimed that Halliburton had done a poor job cementing, a process that is supposed to fill the gaps around the casing with cement to prevent leaks of oil and gas, probably causing the spill. On 24 November 2010, Australian Resources and Energy Minister Martin Ferguson released the Report