All Employees: Professional and Business Services: Employment Services in Oklahoma was 40.60890 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Employment Services in Oklahoma reached a record high of 50.79587 in November of 2000 and a record low of 15.78500 in December of 1991. 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 April of 2024.