Black Onyx Angus Beef is the gold standard for all cattle growers. Black Onyx MB3+, long-fed Angus is THE marbled beef all others are compared to. Ribeyesteaks are harvested from the rib section of the beef. It's cut from the rib primal portion of the rib section typically spanning ribs six through 12. It is one of the most famous cuts all steak lovers crave for. Enjoy that melt in your mouth once in a lifetime steak brought to you by Porter's Pantry Ph.