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Oscar Efraín Tamez Villarreal

Bishop of Ciudad Victoria

Bishop

1973

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Ordained

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Consecrated Bishop

Ciudad Victoria

Diocese

Mexico

Country

The Life

Oscar Efraín Tamez Villareal was born on 4 September 1973 in Allende, Nuevo León. After studying for the priesthood at the Monterrey Seminary he was ordained a priest on 15 August 2003, incardinated for the metropolitan archdiocese of Monterrey; the place of his priestly ordination and the ordaining bishop are not stated in either Holy See bulletin. In 2008 he was awarded a licentiate in moral theology: the 2021 bulletin gives the Alphonsianum Academy in Rome, while the 2016 bulletin gives the Pontifical Gregorian University. The 2021 version governs in this dossier, as the later and fuller curriculum with a year; the 2016 variant is footnoted in the references, never merged into a single institution. As a priest he served as parish vicar; as attorney for matrimonial cases at the Ecclesiastical Tribunal; as formator and lecturer in the seminary; as coordinator of the vocational centre; as coordinator of the Commission for Responsible Parenthood and the Defence of Life; as a member of the National Council of the Mexican Organisation of Vocational Pastoral Care; and as chaplain of the Daughters of Mary Immaculate.

He was appointed titular bishop of Madauro and auxiliary bishop of Monterrey on 31 October 2016, with Heriberto Cavazos Pérez as fellow auxiliary, and received episcopal ordination on 11 January 2017. His consecrators and the consecration venue are not stated in either bulletin. Pope Francis appointed him Bishop of Ciudad Victoria on 23 September 2021, transferring him from the titular see of Madauro and the office of auxiliary of Monterrey. His episcopal ministry in the diocese began on 17 November 2021. His predecessor, Antonio González Sánchez, had resigned on 30 March 2021, and Archbishop Rogelio Cabrera López administered Ciudad Victoria until Tamez began. His episcopal motto, per the diocesan history page, is 'Domine quid me vis facere' ('¿Señor qué quieres que haga?'); the Spanish gloss is the page's translation, not a recorded utterance, and is not quoted. At the CEM's 111th Plenary Assembly he was elected head of the Episcopal Dimension for Vocational Pastoral Care; the assembly date and the term are not given on the diocesan page.

From 2025 to 2026 he also served as Apostolic Administrator of Tampico, concurrent with Ciudad Victoria, during the vacancy after José Armando Álvarez Cano was appointed coadjutor archbishop of Morelia in January 2025 and before Margarito Salazar Cárdenas took Tampico. The administration is confirmed by InfoVaticana (6 February 2026); its endpoints rest on Catholic-Hierarchy event listings: appointed administrator 17 March 2025, ceasing 9 April 2026, the day Salazar Cárdenas was installed. No diocesan or CEM primary for either endpoint was located.

The Old Mass, See by See

Tampico2025-03-17 – 2026-04-09administratorNo act of his own

What he inheritedNo provision for the 1962 Missal of his own is established for the Tampico administration, which is concurrent with his Ciudad Victoria tenure. The administration's dates rest on Catholic-Hierarchy event listings only.

Since the SSPX decree of 2 July 2026: No statement recorded as of 2026-10-28.

Reviewed 2026-10-28Confidence: medium

Ciudad Victoria2021-11-17 – presentNo act of his own

What he inheritedNo provision for the 1962 Missal of his own is established in the record for Ciudad Victoria. The acts of Archbishop Cabrera López as administrator of the see from March to November 2021 precede his tenure and are background only, not his.

Since the SSPX decree of 2 July 2026: No statement recorded as of 2026-10-28.

Reviewed 2026-10-28Confidence: medium

Monterrey2017-01-11 – 2021-09-23auxiliaryNo act of his own

What he inheritedNo provision for the 1962 Missal of his own is established for this tenure. As auxiliary bishop he did not promulgate diocesan liturgical provisions, which are the act of the diocesan bishop, and his overlap with the TC window in this tenure runs only from 16 July to 23 September 2021.

Since the SSPX decree of 2 July 2026: No statement recorded as of 2026-10-28.

Reviewed 2026-10-28Confidence: medium

Domus Dei’s Verdict

The Bishop & the Mass of Ages

No governing act of his own found

References & Further Reading

Resignations and Appointments, 23 September 2021 — Holy See Press Office · 2021English bulletin. Appoints Bishop Oscar Efrain Tamez Villareal (header misprints 'Osar') bishop of Ciudad Victoria, transferring him from the titular see of Madauro and the office of auxiliary of Monterrey. CV: born 4 September 1973 in Allende, Nuevo Leon; Monterrey Seminary; priest 15 August 2003, incardinated Monterrey; licentiate in moral theology 2008, Alphonsianum Academy, Rome; offices list; appointed titular bishop of Madauro and auxiliary of Monterrey 31 October 2016, episcopal ordination 11 January 2017. Spelling flag: the roster slug and name field use 'Villarreal' (double r); both bulletins and the diocesan page use 'Villareal' (single r). Dossier filename follows the roster slug; bio prose uses the bulletin spelling. Flag stands for Timothy/Claude, mirroring batch 1 (Espinosa/Espinoza).

Other Pontifical Acts, 31 October 2016 — Holy See Press Office · 2016English bulletin. Appoints Heriberto Cavazos Perez and Oscar Efrain Tamez Villareal auxiliaries of Monterrey. Tamez CV: born Allende, Nuevo Leon, 1973; priest 2003; licentiate in moral theology from the Pontifical Gregorian University (conflicts with the 2021 bulletin's Alphonsianum Academy; the 2021 version governs in the main text and the 2016 variant is footnoted, never merged).

Diócesis de Victoria — Diocese of Ciudad VictoriaDiocesan history page. Gonzalez Sanchez resignation accepted 30 March 2021; Cabrera Lopez named Apostolic Administrator from that moment; 23 September 2021 Nunciature via CEM General Secretariat: Francis named Oscar Efrain Tamez Villareal V Bishop of Ciudad Victoria; 'Dando inicio a su ministerio episcopal el 17 de noviembre' and motto 'Domine quid me vis facere' ('Senor que quieres que haga?'). Possession-wording flag: the page says 'dio inicio a su ministerio episcopal,' not 'tomo posesion,' unlike its entries for predecessors Tirado (1965), Hinojosa (canonical possession 5 April), Lopez Mateos (canonical possession 29 January 1986) and Gonzalez Sanchez (canonical possession 14 December 1995). The dossier tenure keeps the roster's possession basis and date, with this wording caveat. The page's 'buscando mostrar su constante disposicion para servir' is paraphrase, not quotation. Also: elected at the CEM CXI Plenary Assembly as head of the Episcopal Dimension for Vocational Pastoral Care (assembly date and term not given).

Vacant see ends in Diocese of Tampico, Bishop of Matehuala to be new pastor — InfoVaticana · 20266 February 2026. Confirms the Tampico administration fact only, no dates: after Alvarez Cano was appointed coadjutor archbishop of Morelia (January 2025) and became archbishop (January 2026), 'the Diocese of Tampico was under the apostolic administration of Monsignor Oscar Efrain Tamez Villarreal, bishop of Ciudad Victoria.' Salazar Cardenas appointed Tampico 6 February 2026. Secondary source; used for the fact, not the dates.

Year 2025, March, Bishop Events — Catholic-Hierarchy (via RetroSearch mirror) · 202517 Mar 2025 block: Oscar Efrain Tamez Villarreal, 51.5, Appointed Apostolic Administrator of Tampico, Tamaulipas, current title Bishop of Ciudad Victoria. Spine source for the administration start; the administration itself is confirmed by InfoVaticana (see above). No diocesan or CEM primary for the start was located.

Recent Bishop Events - México — Catholic-Hierarchy · 20269 Apr 2026 rows: Margarito Salazar Cardenas, 68.1, Installed Bishop of Tampico; Oscar Efrain Tamez Villarreal, 52.5, Ceased Apostolic Administrator of Tampico, current title Bishop of Ciudad Victoria. Spine source for the administration close at the successor's installation. A Milenio Tampico front page dated 8 April 2026 announced Salazar Cardenas's welcome in Tampico that day, consistent with the 8-9 April installation cluster; the front page alone does not distinguish the welcome from the installation Mass, so the close rests on the 9 April installation row.

Milenio Tampico front page, 8 April 2026 — Milenio · 2026'Tampico recibe hoy a nuevo obispo'; 'Margarito Salazar tendra su bienvenida en El Faro,' then the Seminary. Welcome announced for 8 April 2026, consistent with the 9 April installation in the Catholic-Hierarchy listing; the front page alone does not distinguish the welcome from the installation Mass.

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