Norwegian marine geoscience and technology company Shearwater GeoServices has recently secured a significant assignment in the Stabroek block off the coast of Guyana, thanks to collaboration with ExxonMobil Guyana, a subsidiary of the U.S.-based ExxonMobil.
Shearwater’s latest project involves deploying distributed acoustic sensing (DAS) technology for a seismic program at the Stabroek block. This two-month assignment focuses on source-only seismic acquisition, aiming to support a baseline DAS reservoir surveillance survey specifically in the Yellowtail development area.
According to Irene Waage Basili, the CEO of Shearwater, the DAS programs offer clients valuable insights into reservoir dynamics throughout the lifecycle of a field. She emphasized that the company’s advanced source technology and robust offshore execution capabilities allow for flexible operations, optimizing vessel utilization through different operational modes.
The company has mobilized the SW Empress vessel, equipped in a triple source configuration. This deployment follows the vessel’s work on a multi-client project in South America, where it has been operational since November 2025. The adaptability of the SW Empress is a clear asset, as it seamlessly transitions between various project requirements to meet client needs.
ExxonMobil’s involvement in Guyana’s Stabroek block has marked a significant turning point in the country’s oil production landscape. Following a final investment decision (FID) made in 2022 for ExxonMobil’s fourth project within this block, the FPSO One Guyana began oil production in August 2025. This was a critical milestone, representing the fourth floating production, storage, and offloading unit deployed in Guyana.
With the startup of FPSO One Guyana, the total installed oil production capacity of Guyana surged to over 900,000 barrels per day (bopd). The operator, ExxonMobil, has ambitious plans, expecting the production capacity to escalate to 1.7 million oil-equivalent barrels per day by 2030 through a series of eight developments. These initiatives underscore not just the rapid pace of growth in the region but also the strategic importance of the Stabroek block for global energy markets.
ExxonMobil Guyana holds a 45% interest in the Stabroek block, while Hess Guyana Exploration, which is now part of Chevron, retains a 30% share. The remaining 25% is held by CNOOC Petroleum. This diversified ownership structure exemplifies the increasing interest from major global players in Guyana’s burgeoning oil sector.