Tobenna's core areas of practice are energy and natural resources; corporate finance; project finance; public private partnerships; construction & real estate and mergers and acquisitions and he has been involved in most of the firm's energy and natural resources transactions. Recent matters in this area include advising the borrower in a United States $450 million financing in respect of a participating interest in an oil mining lease, and advising the acquirer in the acquisition of a major oil servicing company as part of an offshore takeover of the parent company. He led the team that advised the acquirer in a $600 million debt restructuring and acquisition for a major oil and gas company in Nigeria. Tobenna recently led the team that acted as Nigerian counsel to an Africa-focused oil and gas exploration development, production and exploration company incorporated in the United Kingdom and its subsidiary incorporated under the laws of Dubai International Financial Centre on the provision of up to $600 million for the exploration, development, production and sale of crude oil from OML 65 owned by the Nigerian Exploration and Production Limited (Formerly Nigerian Petroleum Development Company Limited).