For which oilfield services company was Helge Lund a director between June 2016 and April 2018?
Halliburton
Baker Hughes
Weatherford
Schlumberger
Answer
Helge Lund was a director of Schlumberger, the world's largest oilfield services company, from June 2016 to April 2018. Schlumberger provides technology, information solutions, and integrated project management for the oil and gas industry.