November 13, 2018: Oslo, Norway, PGS sells the fiber optic permanent reservoir monitoring solution, OptoSeis®, to Geospace Technologies.

Terms of the transaction include an initial cash payment at closing of $1.8 million and contingent cash payments of up to an additional $23.2 million over a five-and-a-half year earn-out period. The contingent cash payments will be derived from revenues generated during the earn-out period from products and services utilizing the OptoSeis® fiber optic technology.

"After reorganizing during the fourth quarter 2017, we started exploring opportunities to divest our non-core OptoSeis® technology early 2018. I am pleased that Geospace will continue to offer this unique solution to clients. PGS looks forward to support and complement Geospace's offering with survey planning, imaging and acquisition services as and when required by their customers," says President & CEO Rune Olav Pedersen.

Pareto Securities acted as financial adviser to PGS in this transaction.

For details, contact:
Bård Stenberg, SVP IR & Communication
Mobile: +47 992 45 235

Petroleum Geo-Services ASA and its subsidiaries ("PGS" or "the Company") is a focused marine geophysical company that provides a broad range of seismic and reservoir services, including acquisition, imaging, interpretation, and field evaluation. The Company MultiClient data library is among the largest in the seismic industry, with modern 3D coverage in all significant offshore hydrocarbon provinces of the world. The Company operates on a worldwide basis with headquarters in Oslo, Norway and the PGS share is listed on the Oslo stock exchange (OSE: PGS). For more information on PGS visit www.pgs.com.

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The information included herein contains certain forward-looking statements that address activities, events or developments that the Company expects, projects, believes or anticipates will or may occur in the future. These statements are based on various assumptions made by the Company, which are beyond its control and are subject to certain additional risks and uncertainties. The Company is subject to a large number of risk factors including but not limited to the demand for seismic services, the demand for data from our multi-client data library, the attractiveness of our technology, unpredictable changes in governmental regulations affecting our markets and extreme weather conditions. For a further description of other relevant risk factors we refer to our Annual Report for 2017. As a result of these and other risk factors, actual events and our actual results may differ materially from those indicated in or implied by such forward-looking statements. The reservation is also made that inaccuracies or mistakes may occur in the information given above about current status of the Company or its business. Any reliance on the information above is at the risk of the reader, and PGS disclaims any and all liability in this respect.

This information is subject to the disclosure requirements pursuant to section 5 -12 of the Norwegian Securities Trading Act.