Saudi Arabia holds the title as the world's largest producer and exporter of total petroleum liquids, and the country's national corporation, Saudi Aramco retains the most proven reserves and production of hydrocarbons worldwide. Only behind Russia as the largest crude oil producer, Saudi Arabia has an estimated 267 billion barrels of proven oil reserves, including 2.5 billion in the Saudi-Kuwaiti Neutral Zone, and 253 trillion cubic feet (Tcf) of proven natural gas reserves. Impressively, more than half of Saudi Arabia's oil reserves are sourced from only eight fields.
Petroleum engineers handle many responsibilities, but on a basic level they are responsible for locating, recovering and maintaining the world’s oil and gas supplies. Petroleum engineers design and develop methods for extracting oil and gas from below the earth’s surface. Their duties can also include managing an oil or gas producing property once it is operational and maximizing the performance and profitability of a well. Petroleum engineers are involved in all stages of well production, from helping to locate a potential well site, through drilling, production, processing and transportation. Some job titles a petroleum engineer may carry include reservoir engineer, drilling engineer or production engineer.