Deepwater Horizon Blowout: 15 Years On, BP Set to Drill Again in the Gulf of Mexico

It has been exactly 15 years since the Deepwater Horizon accident shook the world. Eleven people lost their lives, and over 700 million litres of oil gushed into the Gulf of Mexico over 87 days. Back then, the oil industry promised to mend its ways: stricter safety regulations, new technology, and a vow that nothing like this would ever happen again. But now, a decade and a half later, we're seeing the contours of a new era: BP has been given the green light for its first major new development project in the Gulf since the disaster. The Kaskida field is becoming a reality, and political winds in Washington are simultaneously breathing new life into offshore drilling.

Political Green Light and a New Venture

Last week came the news many in the industry had been waiting for: approval for expanded exploration in the Gulf of Mexico. According to sources close to the administration, this means BP can finally start developing the Kaskida field, a massive reserve that has been on the drawing board for years. This is the first time in 16 years that a British major has started a brand-new project in US waters. Kaskida lies in water depths of around 1,800 metres and is scheduled to come on stream in 2029. For BP, it's a strategic milestone – a recognition that the Gulf of Mexico remains the heart of the company's deepwater portfolio.

The Safety Revolution That Never Was?

After the Deepwater Horizon blowout, a series of measures were introduced: better well control, independent certifications, and requirements for backup equipment. Yet, several internal reports have shown that the risk of another major accident hasn't been significantly reduced. Many of the same weaknesses still exist – particularly concerning emergency preparedness and the resources of regulatory authorities. Now that restrictions from the Obama era are being lifted, environmentalists fear we're on the verge of a new oil fever where safety is deprioritised in favour of production.

• 11 killed – the direct victims of the explosion on 20 April 2010.
• 4.9 million barrels of oil – the official amount that leaked, according to court rulings.
• Over $18 billion – BP's total settlement for the disaster, including fines and clean-up costs.
• 1,600 kilometres of coastline – were affected by the oil spill from Louisiana to Florida.

Kaskida – A Symbol of Continuity or Arrogance?

The Kaskida field is no ordinary project. It's a so-called Palaeogene reservoir that requires extremely high pressure and temperature for extraction. It was precisely such challenging formations that contributed to the accident in 2010. Now, BP believes the technology is mature enough. The company has already invested billions in research on high-pressure safety and intends to use Kaskida as a testing ground for future deepwater projects. At the same time, the symbolism is hard to ignore: the first major new build since the Deepwater Horizon accident is geographically close to the accident site and shares many of the same technical challenges.

The Film That Reminds Us

For the public, the disaster lives on through Peter Berg's film Deepwater Horizon starring Mark Wahlberg. The film, released on Blu-ray in 2016, depicts the final hours before the explosion and the crew's desperate fight for survival. For many, it was a wake-up call: This wasn't an accident; it was a man-made disaster built on poor decisions and neglected maintenance. Now, as BP ramps up activity again, the film serves as a reminder of the price of compromising safety.

What Does This Mean for the UK?

The UK has always kept a close eye on developments in the Gulf of Mexico. Both domestic operators and British suppliers operate in the area, and the safety regime on the UK Continental Shelf was partly reformed after Deepwater Horizon. But the pressure for increased extraction is just as strong at home. The pillars of UK petroleum activities – thoroughness, transparency, and independent oversight – are constantly being tested when profitability and climate goals collide. If BP succeeds with Kaskida without serious incidents, it could lend legitimacy to a new wave of deepwater projects worldwide. If they fail, Deepwater Horizon will never become history – just a prelude.

While politicians in Washington and executives in London celebrate new permits, it's still too early to say whether oil workers on platforms are safer today than they were on 20 April 2010. The only thing we know for sure is that the sea hasn't forgotten.