GATX Corporation operates as finance and leasing company in the United States and internationally. It operates in three segments: GATX Rail, GATX Air, and GATX Specialty. GATX Rail segment leases railcars, such as tank cars and freight cars; and locomotives to shippers of chemical, petroleum, and food products and railroads. This segment also provides full-service leases on railcars, under which it maintains the railcars, pays ad valorem taxes, as well as provides other ancillary services. As of December 31, 2005, it owned approximately 127,700 railcars; and had ownership interest in approximately 25,500 railcars. GATX Air segment engages in leasing narrowbody aircraft to commercial airlines. This segment also provides management services, such as marketing the aircraft; monitoring aircraft maintenance and condition; and administering the portfolio, including billing and collecting rents and maintenance reserves, accounting and tax compliance, reporting and regulatory filings, purchasing insurance, and lessee credit evaluation. It owned 46 aircraft, as well as had an ownership interest in 104 aircraft through joint ventures, as the above date. GATX Specialty segment’s portfolio consists primarily of leases, loans, affiliate investments, and interests in residual values involving various underlying asset types, including marine, aircraft, rail, industrial, and other equipment. GATX Corporation was founded in 1898 and is headquartered in Chicago, Illinois.