International law firm Olswang has advised energy giant BP on the extension of its existing UK and US HR outsource with provider Aon Hewitt.

Working closely with BP's in-house legal, procurement and HR operations teams, the Olswang team was led by Sourcing partner Dominic Dryden with the support of associates Claire Morrissey and Alex Dixie.

Sourcing specialist Dryden commented: "The key to success in extending a relationship of this kind is a respect for its long-standing nature, and the flexibility in approach this requires from the negotiation team, which both parties exemplified.  We were delighted to support BP on this next generation deal which involved an innovative approach to contract structuring."