Who owned the horse Ringo used in Wanted Dead or Alive?

In the TV series "Wanted Dead or Alive," the horse that the character Josh Randall, played by Steve McQueen, rode was named Ringo. The horse was owned by the show's producers, but in the narrative of the series, it served as Randall's trusty companion during his bounty hunting adventures. The bond between Randall and Ringo was a notable aspect of the character's persona.