Oregon has never played in the super bowl as Oregon has no NFL team.
fc tower united
The Minnesota Vikings, who were the losing team in Super Bowls IV, VIII, IX and XI.
Dallas Cowboys
Minnesota Vikings ... they played in Super Bowls IV, VIII, IX, and XI.
cowboys with 8
No NFL team has played in 10 Super Bowls. The Dallas Cowboys hold the record for appearances with eight, and the Pittsburgh Steelers have appeared in seven.
That was the Green Bay Packers who won the first two Super Bowls played in 1967 and 1968.
Vikings and Bills
Terry Bradshaw
The Broncos, Vikings, and Bills have all lost four Super Bowls. The Bills and the Vikings have never won the Super Bowl.
John Elway played in a record 5 Super Bowls with 2 Wins and 3 Losses.