All Employees: Professional and Business Services: Employment Services in Oklahoma was 48.70000 Thous. of Persons in March of 2022, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Employment Services in Oklahoma reached a record high of 52.80000 in August of 2001 and a record low of 14.60000 in January of 1992. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Employment Services in Oklahoma - last updated from the United States Federal Reserve on March of 2024.