Gas Natural Ban SA. The Company's principal activity is the provision of public service for the distribution and transmission of natural gas in the north zone of Buenos Aires. The services and products of the Company also include revision of installations, air conditioning, central water heating, gas-water heaters, dryers, heating systems, and ovens. Its main markets are the residential and commercial sectors. Sale of gas accounted for 94% of 2001 revenues; transport & distribution services, 4%; and other, 2%.