The First Amendment to the United States Constitution provides that Congress shall make no law abridging (curtailing) the right of the people to peaceably assemble. And the U.S. Supreme Court has determined that a right to freedom of association and belief is implicit in the First, Fifth, and Fourteenth Amendments. But this right to freedom of assembly is limited to First Amendment purposes and does not include a right to assemble for social purposes or to engage in or promote illegal activities. And when there is a right of association, the government may not require the group to disclose the identity of its members, or deny government benefits on the basis of current or past membership in a group.

In Oklahoma, as in all states, the right to peaceably assemble is protected under the First Amendment of the United States Constitution. This means that individuals and groups in Oklahoma have the right to gather for peaceful protest, public demonstrations, and other expressive activities without undue interference from the government, as long as these assemblies are for lawful purposes and conducted in a peaceful manner. The U.S. Supreme Court has also recognized a broader right to freedom of association and belief, which is protected by the First, Fifth, and Fourteenth Amendments. This right allows individuals in Oklahoma to form and join associations, including political parties, clubs, and organizations, without unwarranted government intrusion. However, this right does not extend to assemblies for purely social purposes or for the promotion of illegal activities. Additionally, the government is generally prohibited from forcing groups to disclose their membership lists or from denying government benefits based on an individual's current or past membership in a particular group. It's important to note that while these rights are broadly protected, they may be subject to certain time, place, and manner restrictions to ensure public safety and order.