Mypostalexam.com is not affiliated with the USPS but sells the latest and most helpful Postal Jobs Exam Study Guide.
The desert kingdom has around 16% of the worldâs proven oil reserves and is the biggest global exporter of petroleum liquids. There is little doubt as to why its national oil company, Saudi Aramco, the biggest energy company in the world, generates over $1 billion in revenue every single day.
1. Nigeria produced more than 2.4 million barrels of oil per day in 2014 to rank as the 13th-largest oil producer in the world. The country has produced between 2.1 million and about 2.6 million barrels per day for the last 18 years.