Bahía Blanca is the most important seaport city of Argentina, located south of the Province of Buenos Aires and the second largest on the Atlantic Ocean. Its seaport is one of the largest in the country, being the only one with a natural depth of more than 10 m.
Along the bay, the ports are Puerto Galván for oil and chemicals, and specialized in grains is Port Ingeniero White. Bahía Blanca has the largest petrochemical complex in the country located between the two ports.
Puerto Belgrano, 29 km to the southwest, is the most important naval base in Argentina. Bahía Blanca is the largest petrochemical center in the country with an 87% increase in production also provincial and concentrating 64% of national production.