The Southwest Preparatory Conference (SPC) is an athletic conference for certain private high schools in Texas and Oklahoma. It is composed of the following schools: The Awty International School in Houston, Texas Casady School in Oklahoma City, Oklahoma Cistercian Preparatory School in Irving, Texas Duchesne of the Sacred Heart in Houston, Texas Episcopal High School in Bellaire, Texas Episcopal School of Dallas in Dallas, Texas Fort Worth Country Day School in Fort Worth, Texas Greenhill School in Addison, Texas Hockaday School in Dallas, Texas Houston Christian High School in Houston, Texas The John Cooper School in The Woodlands, Texas Kinkaid School in Houston, Texas The Oakridge School in Arlington, Texas St. Andrew's Episcopal School in Austin, Texas St. John's School in Houston, Texas St. Mark's School of Texas in Dallas, Texas St. Stephen's Episcopal School in Austin, Texas Trinity Valley School in Fort Worth, Texas See also List of private schools in Texas List of private schools in Oklahoma External links Southwest Preparatory Conference