1. Industrial Nitrogen Services 391 W Us Highway 12, Chesterton, IN 46304 Coordinate: 41.62572,-87.11595 Phone: (219) 787-8962
2. Praxair 1224 W North Boo Rd, Chesterton, IN 46304 Coordinate: 41.60968,-87.12846 Phone: (219) 787-8651