Stream of consciousness rationale: This is the relevant information: The current Chief of Naval Staff is Ibok Ekwe Ibas who was appointed on July 13, 2015 by President Muhammadu Buhari to succeeded Usman Oyibe Jibrin.
The question and answer pair are described below.
Q: The Chief of Naval Staff is the highest ranking military officer of the Nigerian Navy. The position is often occupied by the most senior commissioned officer appointed by the Commander-in-Chief of the Armed Forces of Nigeria. The Chief of Naval Staff reports to the Chief of Defence Staff, who also reports to the Defence Minister. The Statutory duty of the Officer is to formulate and execute policies towards the highest attainment of National Security and operational competence of the Nigerian Navy. The current Chief of Naval Staff is Ibok Ekwe Ibas who was appointed on July 13, 2015 by President Muhammadu Buhari to succeeded Usman Oyibe Jibrin.

Answer this question based on the passage: the current chief of naval staff in nigeria?
A: Ibok Ekwe Ibas