In 2010, the industry came together to bring BP’s Macondo well in the US Gulf of Mexico under control.

The blowout, explosion and fire on the semi-submersible Deepwater Horizon was not the offshore industry’s first deadly blowout.

But it has had a profound and lasting effect on how drillers, operators and governments plan for such events.

All three of the basic pillars of a source control response were used for Macondo - capping, which contains as part of its response the capping stack, also known as the capping stack, containment, in this case a top hat that served as an early production system, and a relief well.

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