As per 2017, it pastorally served 76,200 Catholics (69.3% of 109,910 total) on 6,681 km² in 18 parishes with 53 priests (35 diocesan, 18 religious), 105 lay religious (61 brothers, 44 sisters) and 9 seminarians.
Rafael María Nze Abuy,
Claretians (C.M.F.) (1965.08.09 – 1966.05.03 see below)
Suffragan Bishops of Bata
Rafael María Nze Abuy, C.M.F. (see above 1966.05.03 – 1974.05.09 see below)
Apostolic Administrator Father Ildefonso Obama Obono (1971 – 1975), without previous prelature; later Bishop of
Ebebiyín (Equatorial Guinea) (1982.10.15 – 1991.07.09), Metropolitan Archbishop of
Malabo (Equatorial Guinea) (1991.07.09 – retired 2015.02.11) and President of Episcopal Conference of Equatorial Guinea (2000 – ...)
Apostolic Administrator Vicente Bernikon (1975 – 1976), while Bishop of
Malabo (Equatorial Guinea) (1974.05.09 – 1976.09.14)
Rafael María Nze Abuy, C.M.F. (see above 1980.06.26 – 1982.10.21), next Metropolitan Archbishop of
Malabo (Equatorial Guinea) (1982.10.21 – death 1991.07.07) and President of Episcopal Conference of Equatorial Guinea (1983 – 1991.07.07)
Anacleto Sima Ngua (1982.11.19 – retired 2002.05.11), President of Episcopal Conference of Equatorial Guinea (1992 – 2000), President of Association of Episcopal Conferences of the Central Africa Region (2000 – 2002)