Preheat oven to 400°. Sprinkle tenderloins with salt and black pepper. Cook in hot oil in a large ovenproof skillet over high heat 3 to 4 minutes on each side or until lightly browned.
Melt butter in a small skillet over medium-high heat; add shallot, and sauté 2 to 3 minutes until tender. Remove from heat, and stir in peach preserves and next 3 ingredients. Cook over medium heat, stirring often, 1 minute or until preserves are melted. Pour over tenderloins.
Bake at 400° for 20 minutes or until a meat thermometer inserted in thickest portion registers 150°. Transfer to a cutting board, reserving drippings in skillet. Cover loosely with aluminum foil, and let stand 10 minutes before slicing.
Meanwhile, stir broth into reserved drippings, and cook over medium-high heat, stirring constantly, 5 minutes or until reduced by half. Serve with sliced tenderloins.