The UK should reduce its reliance on American energy supplies, analysts have warned, amid fears Donald Trump could decide to cut back fuel exports to Britain.

Concerns have been reportedly growing within the energy sector and in Whitehall about an over-reliance on American imports at a time when relations between London and Washington are strained.

The UK is a net importer of natural gas and petroleum, mostly from the US and Norway. By 2035, the UK is set to rely on liquefied natural gas (LNG) from America for over 60 per cent of its overall gas supplies, according to assessments from energy research firm Wood Mackenzie, which warned that “recent history highlights the risks of reliance on a single country”.

The special relationship has suffered a series of recent blows, including Donald Trump threatening to seize Greenland from a mutual ally, insulting the British contribution to the Afghanistan war and launching a war against Iran that the UK has broadly refused to engage with.

Earlier this year, it was reported that No 10 was worried about the risk of Trump banning LNG exports to the UK following his economic policy flip-flops and disagreements over the Iran war.