This is a list of oilfield service companies – which provide services to the petroleum exploration and production industry but do not typically produce petroleum. In the list, notable subsidiary companies and divisions are listed as sub-lists of their current parent companies.
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]
Original source: https://en.wikipedia.org/wiki/List of oilfield service companies.
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