The Midland RockHounds are a minor league baseball team based in Midland, Texas, USA. The team, which plays in the Texas League, is the Double-A affiliate of the Oakland Athletics major league club. The RockHounds play in Security Bank Ballpark, located in Midland. Opened in 2002, the stadium seats 6,669 fans. The RockHounds are the current champions of the Texas League South Division.