Harvest Energy has done a deal to source fuel from Greenergy.
The supply agreement is part of a deal in which Greenergy has acquired Harvest Biofuels’ biodiesel manufacturing facility at Seal Sands on Teesside.
It means Harvest Energy will become an ex-rack customer of Greenergy for petrol and diesel for its customers in the South East of England, Teesside and in Scotland.
Andrew Owens, Greenergy chief executive, said: "The acquisition will help bring our production and blend requirements into balance. Most of the biodiesel we blend into diesel in the UK will now be manufactured and quality assured in our own facilities."