The 18th attorney general of Oklahoma was Mike Hunter, who assumed that post on February 20, 2017, serving until his resignation on June 1, 2021.

Governor Mary Fallin appointed him to succeed Scott Pruitt who was nominated on December 7, 2016 by President-elect Donald Trump to be the next administrator of the Environmental Protection Agency.

As originally written, the Oklahoma Constitution placed no limits on the number of terms an individual could serve as attorney general.

The Attorney General's duties include the following: One primary responsibility of the Attorney General is to appear before the Oklahoma Supreme Court or the Oklahoma Court of Criminal Appeals and prosecute or defend all actions and proceedings, civil or criminal, in which the state is a party.

It is also the duty of the Attorney General to institute civil actions against members of any state board, commission, or office for failure to perform their legal duties as well as to prosecute members of any state board, commission, or office for violation of the criminal laws when such violations have occurred in connection with the performance of their official duties.

Such questions may be submitted by the Legislature (or either branch thereof) or by any state officer, board, commission or department.

Since both are directly chosen by the voters, the relationship between the offices can vary based on the individuals who hold the offices; this can become evident when the Governor and the Attorney General are of different parties, which has become more frequent since Republicans have been making gains in statewide elections.

Democratic Attorney General Charles R. Nesbitt and Republican Governor Henry Bellmon in 1963 was the first instance of this occurrence.

Since then this has happened two more times: in 1987 with Republican Governor Henry Bellmon and Democratic Attorney General Robert Harlan Henry, in 1995 with Republican Governor Frank Keating and Democratic Attorney General Drew Edmondson.

On the other hand, legal opinions issued by the Attorney General are binding on the Governor until overturned by a court of law.

"I, ........., do solemnly swear (or affirm) that I will support, obey, and defend the Constitution of the United States, and the Constitution of the State of Oklahoma, and that I will not, knowingly, receive, directly or indirectly, any money or other valuable thing, for the performance or nonperformance of any act or duty pertaining to my office, other than the compensation allowed by law; I further swear (or affirm) that I will faithfully discharge my duties as Attorney General of the State of Oklahoma to the best of my ability."