The United States dramatically altered its energy sourcing over the past two decades, cutting crude oil imports from the Organization of the Petroleum Exporting Countries (OPEC) by 84% according to data from the U.S. Energy Information Administration (EIA). U.S. crude oil imports from OPEC dropped from 5.42 million barrels per day (bpd) in 2008 to 0.86 million bpd in 2025, as a domestic shale boom transformed national production and shifted reliance toward Canadian supply.
How U.S. Shale Production Restructured the Domestic Supply Mix
U.S.-sourced crude oil supply reached 9.67 million bpd in 2025, marking the highest level in a 51-year series tracked by the EIA, according to historical supply and disposition data. This rebound reversed a steep decline that saw domestic supply bottom out at 4.98 million bpd in 2007. The shale boom nearly doubled domestic production over the subsequent two decades, enabling the country to step back from overseas imports.
OPEC’s footprint in the American energy market shrank significantly alongside this domestic recovery. Following that year, the shale-led output surge caused OPEC’s share of tracked import categories to plummet from 55% in 2008 to just 14% by 2025.
Canada Emerges as America’s Primary Foreign Crude Supplier
Rising domestic output did not eliminate the need for foreign crude entirely. U.S. shale production yields predominantly lighter grades, whereas many domestic refineries remain configured to process heavier varieties.

By 2015, Canada supplied more crude oil to the U.S. than all OPEC members combined, maintaining that lead through 2025 when Canadian volume reached more than 4.5 times the amount imported from OPEC nations. Together, U.S.-sourced supply and Canadian imports accounted for 85.8% of total U.S. crude supply in 2025, up from 71.9% in 1975.
Shift Toward Western Hemisphere Energy Security
The geography of America’s crude supply shifted decisively toward the Western Hemisphere by 2025. Canada and other North and South American nations supplied a combined 5.16 million bpd, overshadowing the 1.01 million bpd sourced from OPEC and the rest of the world. Despite the steep drop in import volume, major OPEC producers such as Saudi Arabia retained a regular trading relationship with the United States, though operating within a vastly smaller share of the overall supply mix.

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