By Charles Collier, The Denmark NewsMARIBEL—Maribel Grain Company’s new gas station and an adjoining Burger King location are expected to be completed by Memorial Day, capping the most aggressive economic development Maribel has seen in some time.Over the last seven years, the Village of Maribel has slowly become known as a community on the decline. Rabas Garage closed but a few years ago, preceded by Denmark State Bank’s departure from its branch there.