Shearwater Geoservices AS (“Shearwater”) has been awarded a 4D towed‑streamer seismic acquisition project for the Mariner field in the UK North Sea by Adura Operations Limited (“Adura”).

The one-month survey will commence in July 2026 and deploy Shearwater’s Isometrix multi‑component streamer technology to deliver high‑quality, repeatable time‑lapse seismic data to support reservoir monitoring and field management.

The survey is designed with the potential for an undershoot, as reflected in the contractual scope, to enhance imaging and ensure continuous coverage around field infrastructure.

“Shearwater welcomes this award by Adura, extending our long-standing collaboration at the Mariner field, supporting the continued optimisation of this complex and long-life asset,” said Irene Waage Basili, CEO of Shearwater. “Monitoring reservoirs in existing fields is essential to extending field life, optimising production, and supporting energy security.”

About Shearwater

Shearwater is a global marine geoscience and technology business that specialises in collecting data offshore. The organisation uses state-of-the art seismic vessels and equipment to explore beneath the seabed and processes the data using market-leading proprietary software. These insights help clients understand the Earth and make informed decisions about accelerating responsible use of its resources. Shearwater’s headquarters is in Bergen, Norway, with more facilities all around the globe. The company employs around 1,000 people.

About Adura

Adura has interests in ten North Sea producing oil and gas assets – Buzzard, Clair, Gannet, Mariner, Nelson, Penguins, Pierce, Schiehallion, Shearwater, and Victory - and two projects in execution - Jackdaw and Rosebank. We also hold a number of exploration licenses.