oil coming from????

crude oil (English : petroleum , latin : petrus - karang and oleum - oil ), called as balck gold, is a weight liquid, dark, or greeny, that easy burned, that lies in up segment of some area in lithosfer, crude oil consist of complex mixture of many hydrocarbon, part of them is alcane, but has variaty in performance, ingeridient, and purity.

taken from wikipedia.org

MULTINASIONAL OIL COMPANY

• Saudi Arabian Oil Company 3028
• Petroleos Mexicanos 1278
• Petroleos de Venezuela 1258
• China National Petroleum 1168
• BP Amoco + Arco 963
• ExxonMobil 894
• Royal Dutch/Shell 859
• Nigerian National Petroleum Company 772
• Iraq National Oil Company 770
• Kuwait Petroleum Corporation 757
• Chevron + Texaco 756
• Valero 380
• Chem-Energy Corporation 10 [1]

Petroleum Engineering Discipline

In Petroleum Engineering, There are 3 kinds of discipline
1. reservoir engineering.
Reservoir engineering is science that learn about how to predict the amount of reserve, characteristic, of fluid in the subsurface including the formation pressure.
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2.production engineering.
Learning about how to produce fluid so that reach surface, including technologies that can be applied when the well ready.
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3. drilling engineering.
Learning about design and execution of drilling after know the point of drilling location that will be used as well hole