Edison Lobão

Edison Bariano Lobão (born December 5, 1936) is a Brazilian politician. He was governor of Maranhão from March 15, 1991 to April 2, 1994 and as minister of mines and energy in the national government under the Dilma Rousseff administration. 
He has also been a senator since 1987. He was the President of the Senate in 2001.