The World's largest complex of oil wells in the 1920s was developed in this area. Key to success of this vast petroleum field lay in finding ways to convey oil to growing fuel markets. First efficient transportation came in 1925 with the laying of the Humble pipeline from Kemper Station, near Big Lake, to Comyn Station (a distance of about 500 miles), to connect with existing Comyn-Baytown system. Early camp for pipeline construction crews was built here 1926 when Humble extended its line west from Big Like Field. Camp's site led to growth of McCamey and building of a refinery. McCamey became important center of oil production and operation. A constant flow of oil went through Humble's pipeline on its long journey to the Gulf Coast. Even with use of pipeline and railroad tank cars, more oil was produced than could be marketed. New practices had to be used to prevent overproduction and waste. Thus Humble pipeline became involved in the first voluntary proration in Texas, when in 1928 producing capacity of local wells was reduced to a level consistent with transportation facilities. Today in Texas, Humble has 15,000 oil and gas wells; 9,545 miles of pipeline; and one refinery.