As of November 1, 2019, Oklahoma is the latest to the list of unrestricted conceal carry law states. This change in law allows anyone 21 years or older (or 18 years old and older if a member of the military or an honorably discharged veteran) who can legally own a firearm to openly or concealed carry without a permit.
If you have one of my charts that outlines the open and concealed carry laws for each state, please update your chart. If you do not have the chart but would like one, please let me know.