Norway's Petroleum Geo-Services (PGS) is forecasting lower profit and revenue for the third quarter, but said the company had been performing strongly.
The Oslo-listed seismic survey shipowner said revenue would be about $220m, with EBITDA at $110m.
This compares to $225.7m and $115.3m in the same period of 2015.
It said multi-client sales was the main contributor, bringing in $145m.
The full results are due on 27 October.
