"Camarones a la Diabla is a famous Mexican dish. This version comes from the Jalisco region. They are called devil's shrimp because they are truly spicy - large shrimp are cooked in a hot sauce with lots of garlic, ketchup, and hot sauce. So beware!"
Heat butter and oil in a skillet over medium heat. Add shrimp and garlic; cook until shrimp are pink, about 3 minutes. Add hot sauce, ketchup, Worcestershire sauce, oregano, salt, and pepper. Cook until flavors are well blended, 5 to 10 minutes.
Pour in beer a little at a time, stirring until dish has desired consistency, about 4 minutes. Cook for 5 minutes more.