HOUSTON — JLL has brokered the sale of Halliburton’s former Oak Park campus, a 48-acre office property located in the Westchase District of Houston. The property includes a 568,000-square-foot office building, a 17,500-square-foot fitness center, daycare, central plant and a five-level parking garage. The office building was built in 1979 and upgraded in 2013. Rudy Hubbard, Kevin McConn, Rick Goings and Dan Bellow of JLL led the sales effort. A local private investment group purchased the asset for an undisclosed price.