where does us oil come from
Most U.S. oil comes from inside the United States itself, with the biggest share of imports coming from Canada, followed by Mexico and a handful of other countries like Saudi Arabia and Iraq.
The big picture: where U.S. oil comes from
- The U.S. is the world’s largest oil producer, so a big chunk of the oil Americans use is pumped at home (Texas, New Mexico, North Dakota, Gulf of Mexico, etc.).
- Even so, the U.S. still imports a significant amount of crude oil to match the kinds of oil its refineries are designed to process.
- In recent years, roughly one‑third of the oil the U.S. consumes has come from imports, down from much higher levels in the 2000s.
Think of it like this: the U.S. has a lot of oil, but its refineries have very specific “tastes,” so it still trades and imports to get the right mix.
Main foreign sources of U.S. oil
Most imported oil now comes from friendly neighbors rather than the Middle East.
- Canada
- By far the largest foreign supplier.
- Provides roughly half or more of all U.S. petroleum imports, on the order of 4–5 million barrels per day in recent data.
* Much of this is heavy crude from oil sands, shipped by pipeline and rail to U.S. refineries.
- Mexico
- Regularly second‑largest source, supplying a single‑digit percentage of U.S. total petroleum imports.
* Sends mostly heavy crude that Gulf Coast refineries are set up to handle.
- Other key countries
- Saudi Arabia and other Persian Gulf states still ship oil to the U.S., but their share has fallen a lot compared with past decades.
* Iraq, Colombia, Brazil, and a variety of “other” non‑OPEC countries make up the remaining import mix.
Snapshot of top import partners (recent patterns)
Here’s a simplified view based on recent data patterns.
| Country | Role for U.S. oil |
|---|---|
| Canada | Largest supplier of imported oil, providing about half or more of total U.S. petroleum imports. | [3][7][9][1]
| Mexico | Second‑tier supplier, contributing a single‑digit percent share of U.S. petroleum imports. | [7][1][3]
| Saudi Arabia | Major Middle Eastern source, but a much smaller share than Canada and Mexico. | [3][7]
| Iraq, Colombia, Brazil, others | Smaller but important contributors that round out the import mix. | [9][1][7][3]
Why import if the U.S. produces so much?
- U.S. refineries were historically built around heavier crudes, while many new domestic barrels (like shale oil) are very light.
- It can be cheaper and more efficient to export some U.S. oil and import other grades that fit refinery configurations.
- Geography matters: it’s sometimes easier for a refinery in one region (like the Gulf Coast or Midwest) to pull oil from Canada or Mexico than to move it all the way across the U.S. from distant fields.
“Where does US oil come from” in plain terms
If you imagine a typical barrel of oil used in the U.S. today:
- A big portion was pumped somewhere in the U.S. itself (especially Texas and the Gulf of Mexico).
- Most of the imported portion likely came from Canada, with some from Mexico.
- A smaller slice came from countries like Saudi Arabia, Iraq, Colombia, and Brazil to balance out the types of crude U.S. refineries need.
TL;DR: U.S. oil mostly comes from U.S. wells, plus big import flows from Canada and Mexico, with smaller amounts from Saudi Arabia and other countries, mainly to get the right grades of crude for American refineries.
Information gathered from public forums or data available on the internet and portrayed here.