The final result was announced at the INEC headquarters in Birnin Kebbi by the Returning Officer, Yusuf Sa’idu of the Usmanu Danfodio University, Sokoto.
Mr Okoye said that INEC would not condone any act of lawlessness or brigandage targeted at its officials or the process of the election in the state.
Mr Okeme polled 127 votes to beat his closest rival AVM Isaac Alfa, who scored 69 votes at the primary held on Saturday in Lokoja.
The February 25 National Assembly elections in Sokoto State was declared inconclusive, and INEC fixed April 15 for the supplementary elections.
With the results, PDP will have 17 seats in the seventh Bayelsa House of Assembly; APC will have five while APGA has two.
The Returning Officer, Sani Ibrahim of BUK, announced the result on Sunday at the Tudun Wada INEC office.
He added that Arinze Awogu of the All Progressives Grand Alliance (APGA) polled 10,155 votes as the second runner-up.
Mr Ibeneme said the party was also working hard to reclaim its governorship mandate, which the people of Enugu State willingly and freely gave.
He added that Sulaiman Umar of the Labour Party (LP) scored 1,463 votes, and Shehu Doka of the NNPP scored 1,058.
INEC Returning Officer, Prof. Umaru Musa, declared the result in Gwantu.
