In 2021, an average of 5.7 million barrels per day (b/d) of petroleum products were exported from the United States, an increase of 360,000 b/d from 2020. U.S. imports of petroleum products also increased to 2.4 million b/d in 2021, up by 371,000 b/d from 2020. Increased domestic and global economic activity was one factor that increased both petroleum product imports into the United States and U.S. exports of petroleum products during 2021. U.S. imports increased more than U.S. exports of petroleum products in 2021, but the United States exported more petroleum products than it imported by nearly 3.3 million b/d.