Heat grill. In food processor bowl with metal blade or in blender container, combine oil and garlic; process until garlic is finely chopped. Reserve 2 teaspoons oil-garlic mixture. Add all remaining ingredients except sea bass to food processor; process until mixture is smooth, scraping down sides of bowl if necessary.
When ready to grill, brush sea bass with reserved oil-garlic mixture. Place, skin side down, on gas grill over medium heat or on charcoal grill 4 to 6 inches from medium coals. Cook 8 to 12 minutes or until fish flakes easily with fork. Do not turn sea bass. Serve sauce over sea bass.