Trump said this to reporters a day ago, on his way to a campaign rally in Florida.
So what exactly did he say?
Donald Trump says quote "We discussed the fact that they're opening up the North Sea oil, and that's going to make the UK a very rich country."
He says he has been pushing Britain to do this for two years. And he says Andy Burnham has done what his predecessor never managed.
Donald Trump says quote "I've been after them to do that for two years."
Downing Street backed that up. It said the two leaders agreed on the benefits this will bring to the UK economy and to British jobs. They also talked about Ukraine's access to Starlink, and about the Middle East.
So what has Britain actually approved?
Three days ago, the government gave the green light to the Jackdaw gas field. It sits about 150 miles east of Aberdeen. Shell and Equinor run it together, through a joint venture called Adura.
Miatta Fahnbulleh, the Energy Secretary, is the one who signed it off.
Here are the numbers the government is using. Jackdaw could lift UK gas production by about 6% at its peak. It could keep gas flowing for up to 11 years. It could add £2.9 billion to the economy. And it could protect hundreds of jobs.
At full output, Jackdaw could heat around 1.4 million British homes.
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Contains modified Copernicus Sentinel/EIA data showing the location of the Brent oil platform in the North Sea. File photo. US Energy Information Administration · Public domain
Andy Burnham says the decision will protect hundreds of jobs and help keep millions of homes warm this winter.
Now here's the thing. Trump called it oil. Jackdaw produces gas, not oil. Commentators say he's mixed the two up.
And not everyone agrees on what Jackdaw really delivers.
Miatta Fahnbulleh herself told LBC it won't cut household bills. She said that was not a consideration in the decision, because it won't mean cheaper bills.
So the minister who approved it is also the one saying it won't save you money.
There's a row over the jobs figure too. The government says hundreds of jobs. Campaigners point to the industry's own assessment, and say the real number of new jobs is 27.
Zack Polanski, the Green Party leader, calls it climate vandalism. Greenpeace UK says it shows fossil fuel lobbyists still have a grip on energy policy. Shell lobbied hard for this decision, and most people expected it to go through.
So why would Labour approve it at all?
Andy Burnham has committed to Labour's own pledge to block new North Sea oil and gas licences. He has also committed to net zero. The government says Jackdaw still fits both promises.
Alongside Jackdaw, the government announced something else. A new Energy Wealth Fund, starting with £2 billion for renewable and low-carbon projects.
One big decision is still sitting on the desk. Rosebank, a much bigger oilfield west of Shetland, is still under review. Trump's praise might be aimed at that one just as much as at Jackdaw.
So right now, Trump is telling Britain it's sitting on riches. Burnham is telling his own party the gas fits with net zero.
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