Colonel Joseph O. Oni was the military governor of Niger State

Niger State

Niger State is a state in the western part of Nigeria and the largest state in the country. The state capital is Minna, and other major cities are Bida, Kontagora, and Suleja. It was formed in 1976 when the then North-Western State was bifurcated into Niger State and Sokoto State.The state is named...

, Nigeria

Nigeria

Nigeria , officially the Federal Republic of Nigeria, is a federal constitutional republic comprising 36 states and its Federal Capital Territory, Abuja. The country is located in West Africa and shares land borders with the Republic of Benin in the west, Chad and Cameroon in the east, and Niger in...

 from July 1978 to October 1979 during the military regime of General Olusegun Obasanjo.
Oni replaced Navy Commander Okoh Ebitu Ukiwe.
He established a budget of N157 million for 1979, of which N76 million was devoted to capital expenditure.

Promoted to Brigadier, Oni was commander of the 1st Division from 9 January 1984 to 16 September 1985.
As Brigadier General, Oni was commander of the Headquarters Training and Doctrine Command, Nigerian Army, Minna

Minna

Minna is a city in west central Nigeria. It's the capital of Niger State, one of Nigeria's 36 federal states, and is the headquarters of Chanchaga Local Government Area.- Geography :...

from 15 September 1986 to 31 December 1987.