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

It's been exactly 15 years since the Deepwater Horizon tragedy shook the world. Eleven people lost their lives, and over 700 million litres of crude gushed into the Gulf of Mexico over 87 days. Back then, the oil industry promised to mend its ways: stricter safety rules, 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 outline 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 at the same time, political winds in Washington are 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: the go-ahead has been given for expanded exploration in the Gulf of Mexico. According to sources close to the administration, this means BP can finally begin developing the Kaskida field, a massive reserve that's been on the drawing board for years. This is the first time in 16 years that a major British company has started a completely new project in US waters. Kaskida is located in water around 1800 metres deep, and is scheduled to come online in 2029. For BP, it's a strategic milestone – an acknowledgement that the Gulf of Mexico remains the heart of the company's deepwater portfolio.

The safety revolution that never came?

After the Deepwater Horizon blowout, a range 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 when it comes to emergency preparedness and the resources of regulatory authorities. Now that restrictions from the Obama era are being removed, environmentalists fear we're heading for a new oil fever where safety takes a back seat to production.

• 11 dead – 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 US$18 billion – BP's total settlement for the disaster, including fines and cleanup costs.
• 1,600 kilometres of coastline – affected by the oil spill from Louisiana to Florida.

Kaskida – a symbol of continuity or arrogance?

The Kaskida field isn't just any project. It's a so-called Paleogene reservoir that requires extremely high pressure and temperature to extract. It was precisely these 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 plans to use Kaskida as a testing ground for future deepwater projects. At the same time, it's hard to ignore the symbolism: the first major new build since the Deepwater Horizon disaster 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 movie, 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 cost of compromising on safety.

What does this mean for New Zealand?

New Zealand has always kept a close eye on developments in the Gulf of Mexico. While we don't have the same scale of deepwater drilling, our own companies operate internationally, and safety regimes everywhere were partly reformed after Deepwater Horizon. But the pressure for increased extraction is just as strong globally. The pillars of sound petroleum practice – thoroughness, transparency, and independent oversight – are constantly 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 be 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 one thing we know for sure is that the sea hasn't forgotten.