All Employees: Construction: Heavy and Civil Engineering Construction in Oklahoma was 16.70000 Thous. of Persons in January of 2020, according to the United States Federal Reserve. Historically, All Employees: Construction: Heavy and Civil Engineering Construction in Oklahoma reached a record high of 19.30000 in January of 2018 and a record low of 9.50000 in January of 1993. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Construction: Heavy and Civil Engineering Construction in Oklahoma - last updated from the United States Federal Reserve on April of 2024.