The MOCC, a fellowship of Reformed Druidic Wicca, was founded in 1983 in Warner, OK. (OMG, we're 25 years old.) Members are only required to hold to the Earth as Mother (at least in principle) and to "An it harm none, do as you will" and "Truth in heart, strength in arm, honesty in speech" as spiritual ideals. There are groups existing, or forming, across the United States, with most activity being in Muskogee, OK. Other Groves exist, or are forming, in Tulsa, OK.
If you are interested in forming a group, email our Founder with a request for a group charter and your snail mail address. There is a little bit of correspondence and answering some questions, as is customary, but we've found that groves of the MOCC are fairly rewarding to spend time with.