ASKER, NORWAY (9 July 2018) - Based on preliminary reporting from operating
units, TGS management expects net revenues for the second quarter of 2018 to be
approximately USD 158 million, 47% higher than Q2 2017.

"Our strong Q2 revenue performance, driven by late sales from our data library,
is further evidence of improvement in the global market for seismic data.
Customer activity is significantly higher than one year ago, although E&P
companies are still being selective and disciplined with respect to new data
purchases. As such, the market is expected to remain volatile in the near-
term," commented Kristian Johansen, CEO, TGS.