Where does oil come from?

Oil is formed from the remains of ancient marine plants and animals that lived millions of years ago. When these organisms died, their remains settled at the bottom of oceans and lakes, along with layers of sediment. Over time, the layers of sediment and organic matter were subjected to high pressure and temperature, causing the organic material to undergo chemical changes and transform into hydrocarbons, which make up oil and natural gas. This process, known as diagenesis, takes millions of years. Eventually, the oil migrates through porous rocks until it gets trapped beneath impermeable layers, forming oil reservoirs. These reservoirs are then drilled and extracted to obtain crude oil.

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