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2. Pumpjack - Wikipedia

   en.wikipedia.org/wiki/Pumpjack

   For the scaffolding system, see Pump-jack. A pumpjack is the overground drive for a reciprocating piston pump in an oil well. [ 1 ] It is used to mechanically lift liquid out of the well if there is not enough bottom hole pressure for the liquid to flow all the way to the surface. The arrangement is often used for onshore wells.

3. Extraction of petroleum - Wikipedia

   en.wikipedia.org/wiki/Extraction_of_petroleum

   Petroleum is mostly recovered from oil drilling. Seismic surveys and other methods are used to locate oil reservoirs. Oil rigs and oil platforms are used to drill long holes into the earth to create an oil well and extract petroleum. After extraction, oil is refined to make gasoline and other products such as tires and refrigerators.

4. NOV Inc. - Wikipedia

   en.wikipedia.org/wiki/NOV_Inc.

   NOV Tower in the Westchase district of Houston. NOV Inc., formerly National Oilwell Varco, is an American multinational corporation based in Houston, Texas.It is a worldwide provider of equipment and components used in oil and gas drilling and production operations, oilfield services, and supply chain integration services to the upstream oil and gas industry.

5. List of oilfield service companies - Wikipedia

   en.wikipedia.org/wiki/List_of_oilfield_service...

   Oilfield service companies may produce, maintain, and repair equipment used in oil extraction and oil transportation. [1] In 2019, the global oilfield services market was US $ 267.8 billion. [ 2 ]

6. Petroleum - Wikipedia

   en.wikipedia.org/wiki/Petroleum

   Petroleum or crude oil, also referred to as simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, [1] and is found in geological formations. The name petroleum covers both naturally occurring unprocessed crude oil and petroleum products that consist of refined crude oil. Petroleum is primarily recovered by ...

7. History of the petroleum industry - Wikipedia

   en.wikipedia.org/wiki/History_of_the_petroleum...

   Oil field in California, 1938. The modern history of petroleum began in the 19th century with the refining of paraffin from crude oil. The Scottish chemist James Young in 1847 noticed a natural petroleum seepage in the Riddings colliery at Alfreton, Derbyshire from which he distilled a light thin oil suitable for use as lamp oil, at the same time obtaining a thicker oil suitable for ...