Established in 2001 and acquired by John Swire & Sons (Green Investments) Ltd in 2013, Argent Energy are the leading UK biodiesel producer.

Our History


Production starts at Motherwell site

Investment of £17 million. Capability of 45k tonnes per annum


First biodiesel producer in Europe to utilise high risk category 1 tallow


Commercial relationship begins with Stagecoach

First bus fleet in Scotland converted to run on bio diesel. Additional new customers switch to high bio blend diesel


Pre treatment plant commissioned

£1.8 million investment. Award won for "Most Sustainable Biodiesel Producer”


Argent Energy awarded World Biodiesel Corporation of the Year World Refining Association

Trials using Argent Biodiesel start with Transport for London


Fuel supply rolled out across Scotland

Awarded Manufacturing and Processing UK winner. Ernst And Young Entrepreneur Of The Year Awards


Fuel supply rolled out across England

Awarded the Green Business of the year 2012 Scottish Business Awards and most innovative green product Insider Magazine

Installation of pioneering technology to improve sustainability to provide a sustainable and environmentally successful use for problematic, low cost waste streams and complete a new value chain from food waste to bio diesel.

Successful tailpipe and emissions testing in conjunction with TFL where CO2 emissions were reduced by 14% using B30 biodiesel (Millbrook trial) 


Acquisition by John Swire and Sons Ltd


Won national fuel supply contracts for high bio blend diesel


Fuel supply rolled out across London (3000 + vehicles)


Acquisition of Argent Oil Terminal

First fuel supply to customers in Wales. Commissioning of bio diesel plant at Stanlow


Research & Development Projects ongoing