International law firm Hogan Lovells and Japanese firm Nagashima Ohno & Tsunematsu are advising ExxonMobil on the 302 billion yen ($3.94 billion) sale of its Japanese unit to the second-largest refiner in Japan, TonenGeneral Sekiyu. This is the U.S. oil giant’s biggest downstream transaction till date.

Hogan Lovells boosted its Asian litigation and arbitration practice by hiring to its Tokyo office partner Patric McGonigal, who was previously a partner with Barlow Lyde & Gilbert in Singapore.