We've divided up our oil and gas industry neatly into three sectors: upstream, midstream and downstream. Upstream encompasses the industry segment from the prospect to the pipeline. Midstream covers field processing, gathering and pipeline networks that are needed to transport the produced oil, gas and natural gas liquids to the downstream refining and petrochemical plants. The downstream sector refines crude oil into petroleum products, such as gasoline, diesel and aviation fuel, and even asphalt. Petrochemical plants produce a wide range of chemicals, fertilizers and plastics.
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