TY  - SER
AU  - Lewis,Ian
TI  - Hoping for a global upswing
PY  - 2011///
CY  - 
PB  - 
N2  - Transcripción del resumen del autor. The big oilfield services companies are upbeat about 2011, with unconventional energy projects the main driver of demand for their technical know how, writes Ian Lewis
ER  -