Oklahoma City is the capital and largest city of the U.S. state of Oklahoma. The city was founded during the Land Run of 1889, and grew to a population of over 10,000 within hours of its founding. Oklahoma City's city limits extend into Canadian, Cleveland, and Pottawatomie counties, though much of those areas are rural or suburban. The city ranks as the eighth-largest city in the United States by land area which includes consolidated city-counties; it is the largest city in the United States by land area whose government is not consolidated with that of a county? Oklahoma City is an important livestock market, featuring one of the top livestock markets in the world. Oil, natural gas, and petroleum products are major products of the economy, as the city is situated in the middle of an oil field, with oil derricks even on the capitol grounds.