The oil major has provided a significant chunk of the foundation’s income.

Welsh Reform labelled a “retirement home for failed Conservatives”.

Lois Perry, who helps to run Reform Friends of Israel, is one of the figures behind a new Heartland Institute branch in central Europe.

Farage’s party has shown over the last year that it will attempt to block and reverse clean energy initiatives in its new councils.

Nigel Farage’s anti-climate party has received two thirds of its income from oil investors.

Hedge fund owner and media boss Jeremy Hosking has increased his oil, gas and coal shares by more than half this year.

For Reform-linked Mathias Corvinus Collegium, election week saw a dividends bonanza.

Ahead of elections in both countries, DeSmog has catalogued the connections between Hungary’s autocratic government and Farage’s operation.

The Mail’s events business in the Middle East provides a quarter of its revenue. A previous Telegraph bid was rejected over petrostate influence fears.

The Reform UK leader’s planned trip to Washington D.C. has prompted fresh consternation from campaigners.