Oslo, Norway (3 May 2019)

Spectrum ASA ("Spectrum") on 2 May 2019 announced that it has agreed on the
principle terms with TGS-NOPEC Geophysical Company ASA ("TGS") of an acquisition
of Spectrum by TGS.  Kristian Johansen, CEO of TGS, and Rune Eng, CEO of
Spectrum, will present the transaction and answer questions in a
teleconference/webcast at 14.00 CEST today.

Dial-in details:
Confirmation Code: 94034154#
Norway: +47 23500243
UK: +44 3333000804
US: +1 6319131422

The presentation can also be followed as a webcast at
www.tgs.com<http://www.tgs.com>.

About Spectrum:

Spectrum provides innovative Multi-Client seismic surveys and high- quality
seismic imaging services to the global oil and gas industry from offices in the
Norway, UK, USA, Brazil, Egypt, Australia, Indonesia and Singapore. Spectrum
designs, acquires and processes seismic data to deliver high quality solutions
through its dedicated and experienced workforce. Spectrum holds the world's
largest library of Multi-Client 2D marine seismic data and a significant amount
of 3D seismic. The company's strategy focuses on both the major, established
hydrocarbon-producing regions of the world as well as key frontier areas
identified by our experienced team of geoscientists. The Spectrum library of
Multi-Client data contains projects from many of the foremost oil producing
regions of the world. These include new acquisition, reprocessing and
interpretation reports.

For more information visit Spectrum online at www.spectrumgeo.com
(http://www.spectrumgeo.com) (http://www.spectrumgeo.com/)

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