Industry in Tulsa, Oklahoma

Tulsa held the nickname "Oil Capital of the World" for most of the 20th century, as it played a major role as one of the most important hubs for the American oil industry. Many international oil and gas-related companies have headquarters in Tulsa, including Williams Companies, SemGroup, Syntroleum, ONEOK, Samson and Excel Energy.

Other important industries in Tulsa include aerospace, finance, technology, telecommunications, high tech, and manufacturing.

The Tulsa International Airport (TUL) and the Tulsa Port of Catoosa, the nation's most inland seaport, connect the region with international trade and transportation. The city's largest employer and the largest maintenance facility in the world is an American Airlines maintenance base at Tulsa International Airport. It serves as the airline's global maintenance and engineering headquarters, while the Tulsa Port of Catoosa and the Tulsa International Airport house extensive industrial parks.

Products from Tulsa manufacturers account for about 60% of Oklahoma's exports, and in 2001, the city's total gross product was in the top one-third of metropolitan areas, states, and countries, with more than $29 billion in total goods, growing at a rate of $250 million each year. In 2006, Forbes magazine rated Tulsa as second in the nation in income growth, and one of the best cities to do business in the country.

A number of large financial corporations are headquartered in Tulsa, including the parent company to the Bank of Oklahoma, the Bank of Texas, the Bank of Arkansas, the Bank of Albuquerque, the Bank of Arizona, Colorado State Bank and Trust, and the Bank of Kansas City - the BOK Financial Corporation. The semi-national gas station chain QuikTrip, the national car rental companies of Vanguard and Dollar-Thrifty, and Mazzio's semi-national pizza chain also call Tulsa home.

Small businessess make up more then 80% of the cities companies, although there are 30 companies in Tulsa that employ more than 1,000 people.