Cut the foil squares. You need a piece for each ear of corn.
Husk the corn. You can leave some husk on for a "handle" or to be decorative, but you want all of the silk off.
Heat the butter in a small bowl in the microwave in 30 second bursts until just melted.
Mix all of the spices in with the butter. Use a spoon or a silicone brush.
Put an ear of corn on a piece of foil, baste it with the butter mixture. Fold in the sides of foil and tightly roll up around the corn.
Cook the corn over the grill (or in the oven on an inside day) open the foil packets for a few minutes of broiling after cooked. Oven cooking is 425F for 35-45 minutes.
Cook to taste, some people like almost raw corn, some people like boiled corn, leave ears in longer if you like yours more well done.
Let the corn rest for a few minutes, arrange on a serving plate. Sprinkle with more oregano and salt to taste.