What does a Petroleum engineer do?

Meeting the task of producing oil and gas and other resources from the earth is the primary challenge of the petroleum engineer. Petroleum provides over 70% of world energy consumption. It is likely to continue at this rate for at least another 50 years, probably 100 ears. No other branch of engineering is more concerned with our everyday lives. Economic and environmentally safe production of petroleum resources requires creative application of a wide spectrum of knowledge, ranging from the basic sciences of mathematics, physics, geology and chemistry to almost all engineering disciplines (mechanical, chemical, electrical, etc).