The Diocese of Tulsa also called the Diocese of Tulsa and Eastern Oklahoma (Latin: Dioecesis Tulsensis) is a Latin Church diocese of the Catholic Church in the eastern part of Oklahoma in the United States. It is a suffragan diocese of the metropolitan Archdiocese of Oklahoma City.
The mother church of the diocese is Holy Family Cathedral in Tulsa. The bishop as of 2026 is David Konderla.
== Statistics ==
The Diocese of Tulsa covers 26,417 square miles (68,420 km2) over 31 counties in eastern Oklahoma – including the most populous county, Tulsa County.
The diocese has 78 parishes (including mission churches) The official news and information publication of the diocese is The Eastern Oklahoma Catholic.
== History ==
=== 1800 to 1870 ===
The first Catholic presence in present-day Oklahoma may have been the expeditions of the Spanish explorers Francisco Vásquez y Coronado and Hernando de Soto in 1541 and 1542. However, there is no evidence of missionary activity in the region until the 1830s. With the passage by the US Congress of the Indian Removal Act of 1830, tens of thousands of Native Americans from the southern and midwestern states were moved west to the Indian Territory, which included Oklahoma.
By 1834, the Diocese of St. Louis had gained jurisdiction for the Indian Territory. Charles Van Quickenborne, a missionary Jesuit priest, came from the St. Louis area to visit the Claremore band of the Osage Nation near Cabin Creek.Jurisdiction over the Oklahoma area was passed to the new Diocese of Little Rock in 1843. Priests from a mission in Neosho County, Kansas, in 1847 started visiting the tribe and US Army posts in the regions. Other priests visited from missions in Texas and Arkansas.
=== 1870 to 1900 ===
A priest from Arkansas, Michael Smyth in 1872 helped Irish workers building the Missouri-Kansas-Texas railroad to construct St. Patrick's the first Catholic Church in the Indian Territory in Atoka.In 1876, Pope Pius IX erected the Apostolic Prefecture of Indian Territory, removing the Indian Territory from the Diocese of Little Rock. The pope named Isadore Robot as the first prefect of the territory.In 1885, St. John the Evangelist Parish was erected in McAlester, the first Catholic parish in that community.
In 1890, the US Government separated western Oklahoma from the Indian Territory, founding the Oklahoma Territory. The Tulsa area remained as part of the now-smaller Indian Territory.In 1891, Pope Leo XIII created the Apostolic Vicariate of Indian Territory, continuing its jurisdiction over the Oklahoma and Indian Territories. The Church of the Assumption was the first parish in Muskogee, established by the priest in 1891. The first parish in Tulsa, Holy Family, opened in 1899.
=== 1900 to 1972 ===
In 1905, Pope Pius X erected the Diocese of Oklahoma City, covering both the Oklahoma Territory and Indian Territory. Two years later, the two territories were admitted to statehood as the State of Oklahoma.
Pope Pius XI renamed the Diocese of Oklahoma City as the Diocese of Oklahoma City-Tulsa in 1930. This was due to the population growth of Tulsa and its surrounding communities. Bishop Francis Kelley of Oklahoma City became the first bishop of the new diocese. The Tulsa area would remain part of this diocese for the next 42 years. In 1936, St. Anne Parish was established in Broken Arrow, the first parish in that community.
In 1960, William K. Warren, Sr., founder of the Warren Petroleum Company, donated the funds to open St. Francis Hospital in Tulsa. It is today St. Francis Medical Center.
=== 1972 to present ===
Pope Paul VI erected the Diocese of Tulsa on December 13, 1972, removing eastern Oklahoma from what became the Archdiocese of Oklahoma City. The pope named Bernard Ganter of the Diocese of Galvaston as the first bishop of Tulsa. He served in Tulsa for four years before being named bishop of the Diocese of Beaumont.
The next bishop of Tulsa was Reverend Eusebius J. Beltran from the Diocese of Atlanta, appointed by Pope John Paul II in 1978. Most notable among his charity work were his efforts to assist persons in need, including unwed mothers, HIV/AIDS victims, homeless families, and women who had just been released from prison. Beltran was appointed archbishop of Oklahoma City in 1992.
Pope John Paul II selected Edward Slattery of the Archdiocese of Chicago to replace Beltran in Tulsa in 1993. Slattery served for 23 years before retiring in 2016. That same year, Pope Francis named David Konderla from the Diocese of Austin as the new bishop of Tulsa.In 2020, the diocese withdrew from the Oklahoma Council of Churches because it would not explicitly condemn abortion rights for women.
In April 2026, John Sommer, a deacon at Christ the King Church in Tulsa, was indicted on charges of bank fraud and one count of unlawful monetary transactions. He was accused of stealing over $1.4 million from the parish.As of 2026, Konderla is the bishop of Austin.
=== Sex abuse ===
A 13-year-old girl and her parents reported to the diocese in 1999 that she had been sexually molested that year by John Jangam, a visiting priest from India. The victim stated that he touched her inappropriately on several occasions. After receiving the allegations, the diocese sent Jangam back to India. In 2002, the girl publicly revealed her story.
In July 2002, the diocese abruptly removed Kenneth Lewis, the pastor of St. John the Evangelist Church in McAlester, after several parents complained about his inappropriate behavior with their children. In 1994, a diocesan employee had reported seeing Lewis give a backrub to a minor. After the employee told the boy's parents, they complained to the diocese. Bishop Slattery then sent Lewis away for treatment. Lewis later returned to ministry. Slattery in August 2002 admitted making a mistake in allowing Lewis in 1994 to return to ministry.
In March 2007, the diocese was sued in Illinois by the parents of a then 14-year-old who they alleged was sexually assaulted by Lewis on a trip to Evanston, Illinois, in 2001. The statute of limitations in Illinois had passed on criminal prosecution. Lewis was laicized by the Vatican in July 2007.The diocese in October 2019 released a list of 11 clergy with credible accusations of sexual abuse of minors dating back to 1973.
== Bishops ==
=== Bishops of Tulsa ===
Bernard J. Ganter (1972–1977), appointed Bishop of Beaumont
Eusebius J. Beltran (1978–1992), appointed Archbishop of Oklahoma City
Edward James Slattery (1993–2016)
David Konderla (2016–present)
=== Other diocesan priests who became bishops ===
Peter Bryan Wells, appointed titular Archbishop and nuncio in 2016
Daniel Henry Mueggenborg, appointed auxiliary bishop of Seattle in 2017
== Cathedral ==
== Newspaper ==
== Education ==
The superintendent of the diocese is David Dean.
=== High schools ===
Bishop Kelley High School – Tulsa
Cascia Hall Preparatory School – Tulsa
=== Liturgical institute ===
Te Deum Institute of Sacred Liturgy
== Ecclesiastical province ==
See: List of the Catholic bishops of the United States#Province of Oklahoma City
== See also ==
== References ==
== External links ==
Roman Catholic Diocese of Tulsa Official Site
Archdiocese of Oklahoma City official website