Pre-heat oven to 325 degrees. Line a large baking sheet with several sheets of tin foil. Brush oil lightly over top of ribs (meat side up). Sprinkle dry rub liberally over ribs and lightly pat. Bake for about 2 ½ to 3 hours or until thermometer reaches 180 degrees. Brush with one cup of barbecue sauce during last 10-15 minutes. Serve with remaining cup of barbecue sauce, warmed.