Infographic map depicting oil production in the United States. The US accounts for 15% of the world's oil production. Of the 50 states, 32 produce oil. Texas is the largest producer of oil in the US. With an output of 1.78 billion barrels of oil in 2020, Texas represents 43% of the total US output. The nearest most productive State is North Dakota, with 431 million barrels in 2020. Data from the US Energy Information Administration 2021.