Buchanan director Bobby Morse is also leading PR efforts for a separate listing of its property arm, Benaa.
Thani chairman Abdulla Saeed al Thani was this week reported as saying that the company would probably float Thani Emirates Petroleum Company, which is the Middle East's only non-government-owned oil firm.
The listing, which could take place over the next twelve months, would value Thani Emirates at as much as £600m, making it one of the biggest floats of the year.
Thani Emirates has a five per cent stake in Petrodar, and a partnership with Chinese oil groups CNPC and Sinopec and Malaysian oil company Petronas to develop five oil fields in Sudan.
Benaa is the company behind the Dubai Golf City development.
Dubai Golf City will be one of the world's largest golf course complexes, with 2,000 chalets, 650 luxury villas and mansions and a six-star resort hotel designed around an Arabian and Moorish theme.
Thani has said that a listing of the property company would be likely to take place in Dubai.