Oklahoma recognizes the following 12 grounds for divorce:

• Abandonment for one year;
• Adultery;
• Impotence;
• When the wife, at the time of marriage, was pregnant with another man’s child;
• Extreme cruelty;
• Fraudulent contract;
• Incompatibility;
• Habitual drunkenness;
• Gross neglect of duty;
• Imprisonment of the other part in a state or federal penal institution under sentence thereto for the commission of a felony at the time the petition is filed;
• The procurement of a final divorce decree from another state by a husband or wife which does not in Oklahoma release the other party from the obligations of marriage; and
• Insanity for a period of 5 years.