How does petroleum and natural gas form?
What is the origin of petroleum and natural gas?
Is petroleum a natural gas? What is natural gas? What does a natural gas contain? Why is AGO called gas oil? What is shale gas? What is petroleum engineering? What is shale gas, and how is it extracted? How is shale gas formed? Is petroleum made from dinosaurs? Why Petroleum is more volatile than water ? What is oil? How is crude oil extracted to make petrol? Is natural gas more "natural" than other fossil fuels? Why is water gas (mixture of hydrogen gas and carbon monoxide)  called as water gas? Is crude oil a mineral? Why or why not? Why do Americans call petrol gas when it is clearly a liquid? What does a petroleum engineer do? How is ground state and noble gas configuration used interchangeably? What is actual situation of petroleum engineering vs chemical engineering? What is the chemical formula for gasoline? What is a hydrocarbon? What are some example? How can you determine the chemical formula for oil? What is the chemical formula of methane? What's the chemical formula of Methane? Where is driver of combustion of hydrocarbones? What is the chemical formula for hydrocarbon? What is the gas produced when sodium carbonate mixes with hydrochloric acid? Why is petroleum engineering hard? What is petroleum engineering carrier? What is a hydrocarbon used as a source of energy?