The Diocese of Bomadi was carved out of the Dioceses of Warri and Port Harcourt comprising the entire Bayelsa State, three Local Government Area of Delta State and two Local Government Areas of Rivers State. It was created as “mission Sui iuris” (Jurisdiction) in 1991 and placed under the pastoral care of the St. Patrick’s Society, Kiltegan, Ireland. It was inaugurated on the 19th of March, 1992 with the Very Rev. Msgr. Thomas V. Greenan SPS as the Ecclesiastical Superior. After five years of intensive missionary activity, which recorded tangible progress, the area was elevated to an Apostolic Vicariate.
On the 14th of May, 1997, the then Rt. Revd. Msgr. Joseph O. Egerega, a retired Captain of the Nigerian Navy, was ordained Apostolic Vicar of the Vicariate at the Sacred Heart Cathedral, Warri along with Rt. Rev. Msgr. John Oke Afaregha as Auxiliary Bishop of Warri. Bishop Egerega was installed on the 15th of May, 1997, as the first Apostolic Vicar (Bishop) of the Apostolic Vicariate of Bomadi, by His Eminence Josef Cardinal Tomko in the presence of His Excellency Carlo Maria Vigano, the then Apostolic Nuncio to Nigeria, at Our Lady of the Waters Cathedral Bomadi.
On the assumption of office, His Lordship, Most Revd. Joseph Egerega, despite the serious environmental, financial, youth restiveness and other related challenges made his contribution to the growth, development and progress of the Vicariate. Bishop Joseph Egerega retired in April 2009, died 3rd February, 2013 and was buried on the 14th of March, 2013.
On the 2nd February 2008, Rt. Rev. Msgr. Hyacinth Oroko Egbebo, MSP who was the Superior General of the Missionary Society of St Paul was ordained as Auxiliary Bishop. He took over as the Apostolic Vicar of the Vicariate upon the retirement of Bishop Egerega in April 2009. His Lordship saw that there is still much to be done in order to make the Vicariate to become a Diocese. With the dream of accomplishing these huge tasks, Most Revd, Dr Hyacinth Egbebo, MSP embarked on several developmental projects; particularly at the Cathedral, the Bishop House, strengthening existing educational and health institutions and building new ones in the various Parishes.
Through the maternal intercession of the blessed virgin Mary in the Marian year, the Holy Father Pope Francis I raised the Vicariate to a Diocese on the 21st of September, 2017and was Canonically erected on the 15th of December, 2017 with the installation of Most Rev. Dr. Hyacinth Oroko Egbebo, MSP as the first Diocesan Bishop of the Diocese of Bomadi.