In the 1920's, this area developed into the world's largest complex of oil wells, and its success depended on finding ways to move oil to growing fuel markets. The first efficient transportation came in 1925 with the laying of the Humble pipeline from Kemper Station, near Big Lake, to Comyn Station, about 500 miles away, where it connected with the existing Comyn-Baytown system. An early camp for pipeline construction crews was built here in 1926 when Humble extended its line west from Big Lake Field, and the camp's site helped lead to the growth of McCamey and the building of a refinery. McCamey became an important center of oil production and operation, and a constant flow of oil moved through Humble's pipeline on its long journey to the Gulf Coast. Even with the pipeline and railroad tank cars, more oil was produced than could be marketed, so new practices were adopted to prevent overproduction and waste. In 1928, the Humble pipeline became involved in the first voluntary proration in Texas, when the 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.