The United States operates one of the most complex and extensive networks of oil refineries in the world, processing billions of barrels of crude oil daily to meet domestic energy demands and supply global markets. Understanding the scale and distribution of this infrastructure requires a direct look at the question: how many oil refineries are in the u.s. The current count reflects a landscape shaped by decades of consolidation, technological advancement, and shifting energy policies.
Current Refinery Count and Capacity
As of the latest data from the Energy Information Administration (EIA), there are 135 operating oil refineries across the United States. This number represents a slight fluctuation from previous years, as some facilities have undergone expansions while others have been idled or retired due to economic pressures. These refineries are not distributed evenly; they are concentrated heavily along the Gulf Coast, the West Coast, and the Midwest, creating distinct regional hubs for petroleum processing.
Geographic Distribution of Facilities
Gulf Coast Dominance
The Gulf Coast region, encompassing states like Texas, Louisiana, and Mississippi, is the undisputed heart of American refining. This area accounts for over 50% of the nation's total refining capacity, hosting the largest and most complex refineries capable of processing heavy crude oils. The concentration here is a result of historical infrastructure, deep-water ports, and proximity to major crude oil production areas.
West Coast and Midwest
On the West Coast, refineries in California, Washington, and Oregon serve significant markets, though they face stricter environmental regulations. The Midwest, particularly around Illinois and Ohio, supports a network of refineries focused on processing lighter crude grades and supplying regional fuel distribution centers. These regions highlight the geographic diversity in how the country manages its refining assets.
Capacity and Operational Scale \ The 135 refineries collectively process an average of approximately 18 million barrels of crude oil per day. This immense throughput underscores the role of these facilities as critical nodes in the global energy supply chain. Individual refinery capacity varies dramatically, from smaller regional plants processing tens of thousands of barrels per day to massive complexes handling over 600,000 barrels daily. Factors Influencing the Number of Refineries
The 135 refineries collectively process an average of approximately 18 million barrels of crude oil per day. This immense throughput underscores the role of these facilities as critical nodes in the global energy supply chain. Individual refinery capacity varies dramatically, from smaller regional plants processing tens of thousands of barrels per day to massive complexes handling over 600,000 barrels daily.
The count of operational refineries is not static; it is influenced by a confluence of economic, regulatory, and market forces. Profitability remains the primary driver, with facilities closing when maintenance costs and regulatory compliance outweigh operational revenue. Environmental regulations, particularly those concerning emissions and waste management, have also significantly impacted the viability of older, less-efficient plants.
Trends and Future Outlook
Industry trends suggest a continued consolidation, where larger companies absorb smaller players, leading to fewer but more technologically advanced facilities. Refinery conversions to process different crude types or produce renewable fuels are becoming more common, indicating an adaptation to future energy landscapes. While the total number may decline slightly due to these pressures, the focus is shifting towards optimizing the efficiency and environmental performance of the existing network.
