Construction on the Oklahoma State Capitol building began in 1914, and it wasn't completed until June 30, 1917.

The exterior is constructed mostly of Indiana limestone that sits on a base of locally obtained Oklahoma pink granite. The grand staircase is constructed of Oklahoma black granite. The dome is constructed of steel-reinforced concrete and reinforced plaster casts.

The building actually sits on the Oklahoma City Oil Field and has several active oil rigs on the property.