Dorsey & Whitney LLP | USA | 22 Jun 2012
The SEC has been investigating Angolan presalt company Cobalt International Energy, a US company, since November 2011.
Dorsey & Whitney LLP | USA | 18 Nov 2011
U.S. oilfield services company Halliburton has disclosed that it is conducting an internal investigation after receiving an anonymous email regarding its Angolan operations.