The net debt of Intera Group (a company that specializes in full-range O & G maintenance services) rose from $111.7m up to $143.6m in three months of the year 2011, the company’s quarterly report says.

Integra’s revenues went up by 19.6% over the same time period and came to $223m. The capital expenses, which amounted to $19.7m by the end of March, increased as well, as the figure for January-March 2010 was only $13.9m.