Soak the skewers in water for at least a half an hour before grilling.
In a large bowl whisk together the oil, oregano, paprika, garlic powder, salt, and pepper. Add the shrimp and toss to coat with the marinade. Marinate for half an hour to an hour.
Preheat a grill to medium-high heat- 400°F. Baste the grill grates with some olive oil so that the shrimp don't stick to the grill.
Thread the shrimp onto skewers. Place the shrimp on the prepared grates and grill 2 minutes per side or until the shrimp turns pink and is cooked through. Remove from grill and squeeze on fresh lime juice. Garnish with fresh chives and serve with lime wedges. Serve immediately. Enjoy!