Heat Oil In A Large Heavy Skillet Over Medium Heat. Cook Pork Chops Until Evenly Brown On Both Sides; Remove From Skillet. Pour In Orange Juice, Soy Sauce And Sugar. Boil For 2 Minutes, Scraping The Bottom Of Pan. In A Small Bowl, Mix Together Water And Cornstarch, And Stir Into Sauce. Return Pork To Skillet And Cook Briefly Until Thickened And Heated Through.