An haife shi a 30 ga watan nowamba 1933. Dan siyasa ne Wanda ya fara tun lokacin da Nigeria na samu yancin kanta a shekarar 1960 had zuwa lokacin mutuwar sa a shekarar 2008. Okilo Dan asalin jihar Bayelsa ne,  Wanda yayi karatun lauya amma kuma ya shiga siyasa yana shekara 23. Okilo yayi mamba na majalisa daga 1956 zuwa 1964. Kuma yayi ministar a republic ta daya a Nigeria. Shine na farkon zababben gomna a jihar Rivers, a shekarar 1979 zuwa 1983. Daga bisani yayi sanata a jihar bayalsa inda ya  wakilci bayalsa ta kudu a shekarar 1999 zuwa 2003. http://www.worldstatesmen.org/Nigeria_federal_states.htm http://allafrica.com/stories/200807070423.html