ExxonMobil Guyana is advancing a new round of offshore development and infrastructure work in the Stabroek Block, with maritime notices issued this month showing continued activity to support the country’s expanding network of floating production vessels.
The notices, issued by the Maritime Administration Department (MARAD) on June 6, outline separate operations involving deepwater field development and subsea installation work within Guyana’s Exclusive Economic Zone (EEZ).
Under Notice to Mariners No. 097 of 2026, ExxonMobil will continue deepwater development operations in the Stabroek Block using the offshore support vessel Handid Tide.
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The campaign is scheduled to run until August 25, 2026, in an area approximately 101 nautical miles offshore and covering about 85 square nautical miles.
A separate notice, No. 095 of 2026, advises that ExxonMobil will undertake the installation of subsea blanks on the vessel side shells of floating production, storage and offloading (FPSO) vessels operating in the block.
Subsea blanks are sealing components used to isolate or protect subsea connections and equipment during installation, maintenance or future tie-in activities.
The work will be carried out by the support vessel C-Worker 1 and is expected to continue through December 31, 2026. The installation campaign will take place in an area about 92 nautical miles offshore, covering approximately 156 square nautical miles.
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The activities are part of the continuing offshore construction, installation and maintenance activities required to support Guyana’s rapidly expanding petroleum sector, which now produces more than 900,000 barrels of oil per day from four developments in the Stabroek Block.
ExxonMobil and its partners are advancing additional projects offshore Guyana, including the Uaru development, which is expected to begin production later this year and push national output above one million barrels per day.
The Stabroek Block remains the center of Guyana’s oil industry and is home to multiple FPSOs producing crude from fields developed since first oil was achieved in December 2019.
ExxonMobil operates the block with a 45% stake, alongside Hess with 30% and CNOOC with 25%.
