Burglary is generally the unlawful entry of a building or structure to commit a felony criminal offense (crime), theft, or assault. The definition of burglary varies from state to state (and in the federal system), and some states have different degrees of severity of the burglary offense—depending on the nature of the unlawful entry (type of building or structure), the intended purpose, and the illegal action taken by the defendant once inside the building or structure. In some states, breaking into an automobile, a coin-operated machine, or an ATM (automated teller machine) with the intent to commit a theft may also constitute the crime of burglary.

In Oklahoma, burglary is defined under state statutes and is classified into different degrees based on the circumstances of the offense. First-degree burglary involves breaking into and entering the dwelling of another person with the intent to commit a felony or theft therein, especially when it is occupied. Second-degree burglary pertains to breaking into and entering any building or part of a building, room, booth, tent, railroad car, automobile, truck, trailer, vessel, or other structure or erection in which any property is kept, with the intent to steal or commit any felony. Oklahoma law also recognizes burglary with explosives and burglary from a coin-operated or vending machine, which are separate offenses. The severity of the punishment for burglary in Oklahoma varies depending on the degree of the burglary and the specific circumstances of the crime. It is important for individuals to consult with an attorney for specific legal advice and representation if they are facing burglary charges in Oklahoma.