There's just not much gas left in the UK North Sea.

> Industry body Offshore Energy UK (OEUK) claims that more oil and gas could be extracted by 2050. However, the ‘High Case’ scenario for future production in a report for OEUK would still mean that 92% of production has already occurred.

...

> Compared to the maximum oil production that occurred in 1999, UK output in 2025 was 77% (over three-quarters) lower.

https://eciu.net/media/press-releases/around-90-of-uk-north-...