Norway's Shearwater GeoServices is forming a new seismic shipping alliance with Paris-listed CGG.

Shearwater will buy five high-end streamer vessels and two additional "legacy ships" jointly owned by CGG Marine Resources Norge and Norwegian company Eidesvik Offshore.

CGG will gain access to "strategic vessel capacity" for future multi-client projects, while Shearwater will have committed cashflow and activity for multiple years, the companies said.