where are most of the us oil refineries located
Petroleum refining in the United States Most large refineries are near navigable waterways, especially seaports or Great Lakes ports. The single largest concentration of refineries is along the Gulf Coast.[11] Although there are refineries in 30 states, just three states dominate US refining: Texas (47 operating refineries), Louisiana (19), and California (18). As of January 2015, these three states contain 45% of all US refineries and 59% of all US refining capacity.[12]
Oil refinery Many governments worldwide have mandated restrictions on contaminants that refineries release, and most refineries have installed the equipment needed to comply with the requirements of the pertinent environmental protection regulatory agencies. In the United States, there is strong pressure to prevent the development of new refineries, and no major refinery has been built in the country since Marathon's Garyville, Louisiana facility in 1976. However, many existing refineries have been expanded during that time. Environmental restrictions and pressure to prevent construction of new refineries may have also contributed to rising fuel prices in the United States.[9] Additionally, many refineries (more than 100 since the 1980s) have closed due to obsolescence and/or merger activity within the industry itself.
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