For reference, U.S. oil production in 2018 (per the BP Statistical Review) was 15.3 million BPD, which was more than the total from Iran, Iraq, and the UAE. (That number includes natural gas liquids, as do the numbers above).
It is also important to note that sanctions on Iran have impacted its ability to export oil. According to OPEC’s latest Oil Market Report, oil production in Iran fell by about 40 percent from 2019 to the end of 2020
Before covering how much oil we get from the Middle East today, let’s look at the picture prior to the shale oil boom.