Maybe you already know about these EF locations in Oklahoma. All are approved by the bishop.
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- Clear Creek Monestery, Hulbert, OK
The Bishop has no jurisdiction over Clear Creek. Clear Creek is a monastery of the Solesmes Congregation (the same as the abbey I belong to), and is an institute of consecrated life of Pontifical Right. But yes they do have an approved EF Mass, and they do the Divine Office according to the 1500 year old Benedictine schema in its pre-Vatican II form.
That said I think folks here are taking too narrow a view of “tradition”. There are many ways in which tradition continues in the Ordinary Form. Gregorian chant is one. The Graduale Romanum was revised post-Vatican II to correspond to the three-year Sunday and 2-year weekday cycle of readings. Thus the patrimony has been preserved.
Also in the Liturgy of the Hours, Gregorian chant is finally being applied to it, with the first volume of an official antiphonary (Antiphonale Romanum Vol II), and an unofficial but approved antiphonary (Les Heures Grégoriennes, in Latin/French; it’s designed for the Commnunauté St. Martin in France but has the Concordat thus can be used for others as well as it follows the General Roman and Francophone countries’ calendars). Moreover in the much-maligned (by traditionalists) Liturgy of the Hours there are several elements of tradition (especially Benedictine) that carried over to it, if one digs around a bit.
A bit of a wish on my part: that people invest the same effort in assuring the patrimony of chant survives in the Ordinary Form, as they do in reviving the Extraordinary Form. And instead of complaining about how the OF/LOTH has poor/no music, lackadaisical respect of the rubrics, etc.,
do something about it. A bunch of men in Sherbrooke, Quebec (and this happens elsewhere) have done just that and formed a schola that does the OF Mass in Gregorian chant once a month in different parishes, and also does the Liturgy of the Hours (solemn Vespers) in Gregorian chant once or twice in each of Advent and Lent.
If folks don’t get involved, chant will die out from the Ordinary Form except in monasteries.