Linde Oktoberfest Tulsa celebrates an authentic Bavarian culture closely patterned after Munich Oktoberfest. Oktoberfest, Inc. is a 501(c)3 organization whose mission is to produce an authentic Oktoberfest celebration in the heart of Oklahoma. Produced by River Parks Authority, the government agency responsible for managing over 60 miles of trails and parks bordering the Arkansas River, Linde Oktoberfest Tulsa is celebrating its 40th year in 2018.