Spoon wild rice into lightly greased 7x11 inch baking pan. In heavy skillet, brown chops in oil; season with salt and pepper. Arrange browned chops on top of rice. In same skillet, saute onion until golden ; drain. Stir in soup, water and sherry. Bring to a boil, stirring up browned portions on bottom of skillet; pour over chops and rice. Bake, covered, in a preheated 325 F oven 30 minutes. Uncover and bake until meat reaches an internal temperature of 155 F (about 10 minutes longer).