The United States Attorney's Office for the Northern District of Oklahoma represents the United States in civil and criminal litigation in the court. The U.S. Attorney is David E. O'Meilia.
As of January 4, 2010, a vacancy exists in the Northern District of Oklahoma due to Judge Terence C. Kern's decision to assume senior status. On February 2, 2011, President Obama nominated Arvo Mikkanen to the vacancy. His nomination is currently pending before the United States Senate.