Top-30-Oilfield-Services-Companies-2018-02. Halliburton
Halliburton
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Earning over $20bn in 2017 and with 55,000 employees worldwide, Halliburton is a bona fide top three entrant and one of the world’s oilfield service leaders. The firm has recently signed a three-year deal with Aramco to boost the Saudi firm’s unconventional gas production. Halliburton has seen increased drilling services, project management activity, and completion tool sales in the Middle East with a 6% spike in regional revenues.