UK Prime Minister Rishi Sunak is poised to announce a major natural gas deal with the US after the COP27 climate change summit, The Telegraph reported.

The deal has continued to be pursued by UK officials in Washington DC under Sunak, with an announcement expected in the next week or two, although a date is yet to be decided.

The UK side hopes the figure will be around 10 billion cubic meters, according to two UK sources. The whole of the European Union was promised 15 billion cubic meters by the US this spring.

But wrangling about the exact figure continues, and it remains possible that a specific number will not be named in the public declaration.

It is unclear how much of the natural gas—which will be sold by US companies, rather than the US government—will be in the UK energy system for this winter.

The US government estimates that the ability of US LNG producers to supply more fuel will grow only marginally by 2025, when three new plants are fully operational.

About 12 UK energy companies have gone bankrupt this year, affecting more than 2 million customers.