Ofgem has warned that Britain's gas supply resilience has weakened this winter, pointing to falling North Sea reserves and a drop in gas imports, according to the Daily Mail.

The regulator's alarm comes after the government already spent £147 million securing extra gas imports from Europe to guarantee supplies in an emergency scenario this winter, a cost that may be passed on to household energy bills, the Express reported.

The reliance underscores how far UK energy security now depends on the same European gas market that Russia's war in Ukraine upended, with the continent competing hard every winter since 2022 for the pipeline and tanker supply Britain is now paying a premium to secure.

Neither Ofgem nor the government has detailed what happens if supplies run critically short despite the outlay, leaving open how much further that bill could grow this winter, and who ultimately pays it.