Answer: The United States
Explanation: Based in crude and non-conventional oil, and natural gas liquid in the year of 2017, The United States of America were the world top producer with 13,191 thousand barrels per day. Followed by Saudi Arabia (11,964) and Russia (11,357). Technological advancements, supportive policies, and other aspects of the U.S. oil industry have reversed a multi decade downward trend in U.S. oil production. In 2018, U.S. oil production nearly doubled compared to 2008.