The Prax Group is a British multinational energy conglomerate headquartered in London, operating across the full oil value chain — from upstream exploration and production to midstream logistics and downstream refining, marketing, and distribution. Founded in 2000, the group has grown from an independent oil trading operation into a vertically integrated energy business with a workforce of approximately 960 employees across seven global offices. The group's downstream fuel marketing and retail activities operate under the Harvest Energy brand, while its refining, blending, and upstream operations carry the Prax name. Prax's business model is built on integration — creating operational and commercial synergies between its upstream equity production, its midstream storage and logistics infrastructure, and its downstream customer-facing distribution network.
A pivotal moment in Prax's development came in March 2021 when it acquired the Lindsey Oil Refinery from TotalEnergies. The transaction encompassed not only the 113,000 BPD refinery itself but also the Finaline pipeline (a 232 km product distribution pipeline connecting Lincolnshire to the English Midlands), the Killingholme loading terminal on the Humber Estuary, and shares in several joint venture operations. The acquisition was widely regarded as a bold strategic move, enabling Prax to integrate the refinery's product flows directly into its UK distribution and retail network, reduce third-party supply dependency, and position itself as one of the few independent, fully integrated downstream operators in the UK.
However, the Lindsey Refinery proved operationally and financially challenging under Prax's ownership. A combination of tightening refining margins, elevated energy costs, and the capital demands of sustaining an ageing, sub-scale refinery relative to competitors placed severe strain on the group's finances. In June 2025, Prax Lindsey Oil Refinery Limited entered insolvency, with the Official Receiver appointed as liquidator — marking the first UK refinery closure since Coryton in 2012. FTI Consulting was appointed as special manager to oversee the asset sale process. Following a competitive bidding process, Phillips 66 Limited agreed in January 2026 to acquire the refinery's key process assets and associated infrastructure, with plans to integrate them into the adjacent Humber Refinery rather than restart Lindsey as a standalone facility. The deal was completed on 28 April 2026.
The Lindsey insolvency represented a significant setback for Prax but did not dissolve the wider group, whose upstream, trading, and Harvest Energy retail operations continued independently. The episode nonetheless highlighted the structural vulnerabilities facing independent, single-refinery operators in the post-2020 European refining landscape, where scale, complexity, and access to low-carbon capital investment have become decisive competitive factors.
