Oilfield services provider Baker Hughes (NASDAQ: BKR) reported on Wednesday second-quarter earnings beat analyst expectations as strong global upstream activities and the return of offshore drilling more than offset a recent market softness in North America. Baker Hughes, one of the three biggest energy service providers in the world, reported adjusted diluted earnings of $0.39 per share for the second quarter. The earnings beat the analyst consensus estimate of $0.33 per share compiled by The Wall Street Journal. Orders and revenues both jumped…