The economy of Los Angeles is driven by international trade, entertainment (television, motion pictures, video games, recorded music), aerospace, technology, petroleum, fashion, apparel, and tourism. Los Angeles is also the largest manufacturing center in the western United States. The contiguous ports of Los Angeles and Long Beach together comprise the fifth-busiest port in the world and the most significant port in the Western Hemisphere and is vital to trade within the Pacific Rim. Other significant industries include media production, finance, telecommunications, law, healthcare, and transportation. The city is home to six Fortune 500 companies. They are energy company Occidental Petroleum, healthcare provider Health Net, metals distributor Reliance Steel & Aluminium, engineering firm AECOM, real estate group CBRE Group and builder Tutor Perini.