The Osage Nation Foundation (ONF) charter and bylaws were created and ratified on July 20, 2005 by the Osage Tribal Council. The entity was organized as a not-for-profit corporation on October 18, 2005 by the Office of the Secretary of the Osage Nation under Osage sovereign law. In 2006, the Internal Revenue Service recognized the Osage Nation Foundation as a non-profit public charity organized under Section 501(c)(3) of the Internal Revenue Service code. The charter of the Foundation was amended in April 2008 by the Osage Congress to bring the language in line with the new constitutional form of tribal government. The organization was generally inactive until 2009 when Principal Chief Jim Gray appointed a new Board of Trustees. In October 2011, the Board of Trustees amended its bylaws to agree with the previously-amended charter. In 2011, the Osage Congress appropriated funds to hire a professional firm to manage the affairs of the organization.