Zen Centers in Oklahoma - Complete list of all Zen Centers in Oklahoma, maintained by the International Research Institute for Zen Buddhism. - http://iriz.hanazono.ac.jp/zen_centers/centers_data/usaNW.htm#OKLAHOMA
Oklahoma City: Mindessence Zen Center - Provides a mutually supportive and positive Zen learning environment in which every member has the opportunity to develop loving-kindness, compassion, Dharma insights and meditation skills that in turn foster self-confidence, joy and peace for the present - http://www.mindessence-zen-center.org