When US Secretary of the Interior Ken Salazar lifted the deepwater drilling embargo on 12 October 2010, he warned Gulf of Mexico operators that they would need to demonstrate the 'availability and adequacy of blow-out containment resources' before they could gain permission to drill. The Macondo disaster had demonstrated that containment equipment could not only reduce the scale of an oil spill, but also buy time to ensure that a relief well was successful. Jeff Crook reports.
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