As an expert in the field of energy resources, I have a deep understanding of the global oil industry and its dynamics. Oil, being a crucial component of the global energy mix, is sourced from various regions around the world. The extraction and distribution of oil are influenced by a multitude of factors including geology, economics, politics, and technological advancements.

America, as one of the world's largest oil producers, has made significant strides in enhancing its domestic production capabilities. This has allowed the country to meet close to 40 percent of its oil needs domestically. This self-sufficiency is a strategic advantage, reducing reliance on foreign oil and enhancing energy security. The domestic oil industry is supported by advanced technologies such as hydraulic fracturing, or "fracking," and horizontal drilling, which have unlocked vast reserves of shale oil.

However, despite these domestic efforts, the United States still imports a significant amount of oil to meet its energy demands. The imports primarily come from a select group of countries, each playing a pivotal role in the U.S. energy supply chain.
Canada stands as the largest source of imported oil to the U.S., thanks to its proximity and the existence of extensive pipeline infrastructures. The oil from Canada is primarily derived from the Alberta oil sands, which are among the largest deposits of crude bitumen in the world.

Saudi Arabia, being one of the founding members of OPEC, is another key supplier of oil to the U.S. The kingdom boasts vast reserves and has the capacity to produce oil at a competitive cost. The relationship between the U.S. and Saudi Arabia in the oil sector is not only commercial but also geopolitical, given the strategic importance of oil to the global economy.

Mexico, as a neighbor to the U.S., is also a significant player in the oil trade. The country has been undergoing reforms in its energy sector to increase foreign investment and modernize its oil industry. The U.S.-Mexico cross-border energy cooperation is a testament to the interdependence in the North American energy market.

Venezuela, despite facing political and economic challenges, remains an important oil supplier to the U.S. due to its large reserves. However, the volume of oil trade between the two countries has been affected by the political climate and economic sanctions imposed by the U.S. government.

Nigeria, as a member of OPEC, is the largest oil exporter in Africa and a significant supplier to the U.S. The Nigerian oil industry has been a cornerstone of its economy, and its light sweet crude oil is particularly sought after in the international market.

In conclusion, the U.S. oil supply is a complex interplay of domestic production and international trade. While the country has made significant progress in increasing its domestic production, it continues to rely on imports to meet its energy needs. The strategic relationships with oil-producing countries are vital for maintaining a stable and secure energy supply.

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America is one of the world's largest oil producers, and close to 40 percent of U.S. oil needs are met at home. Most of the imports currently come from five countries: Canada, Saudi Arabia, Mexico, Venezuela and Nigeria.Apr 12, 2012read more >>