OIL FIELD SERVICES: Industry's 'Big Four' reap rewards of a slow market Saqib Rahim, E&E reporter Published: Thursday, July 3, 2014 In oil field services, life is still good at the top. Please subscribe to EnergyWire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.