New York - Demand for oil and natural gas continues to grow, despite the current economic downturn, indicating a positive future outlook for oilfield services, according to a new report by business intelligence expert GBI Research. The new report shows that, for the most part, the global oilfield services industry has grown exponentially over recent years, witnessing a rapid increase in revenue and advancement in technologies. Increased exploration and production activities have seen the discovery of reserves in new regions, necessitating an expansion in oilfield services. A significant rise in unconventional plays within the North American region has necessitated an increase in the demand for pressure pumping services…