Set #300107 Australian Outback Adventure Play Set from 2005-2006, included a bay roan Loping Stock Horse, dun pinto Reining Stock Mare, Rider, Water Trough, Corral with Gate, Three Racing Barrels, Groom Box, Tack Box, Hay Bales, Oat Bag, Mounting Block, Bucket and Outback Play Mat. On the 2006 Retired List.
Set #300125 Sunshine State Dressage Festival Play Set from 2007-2008, included the Loping Stock Horse, Walking Arabian, Rider, Dressage Arena and Play Mat. On the 2008 Retired List. The bay roan color may be a bit different from the Australian set, but I have not seen enough of these to determine a definite variation.