Addleshaw Goddard and Ashurst have secured first-time roles on BPs expanded legal panel following a reverse auction for spots on the oil giant's UK roster.

The two new additions will join Linklaters, Freshfields, Herbert Smith Freehills, Norton Rose Fulbright, CMS Cameron McKenna, Pinsent Masons and Olswang, who all retain the places they have held since the panel was last reviewed in 2011.

Fieldfisher is the only firm to have lost its spot following the tender process.

Simmons and Simmons, which was not on the previous panel but has advised BP in the past on interests such as the $4bn Caspian Consortium project, a 1,500km cross-border oil pipeline between Russia and Kazakhstan, completes the roster of 10 firms, all of which have three-year appointments starting 1 July.

A number of additional specialist firms are also being considered for niche roles.

BP did not disclose the value of bids, and the tender process for the US panel is still ongoing.

"We've reselected most of the existing panel but we felt it would help us to bring in some new names as we sought competition, high quality and value from the UK panel," said Rupert Bondy, BP's group general counsel. "We have a good spread of UK-based firms some of whom are familiar with the issues we face and some who we feel will be able to add value in the longer term."