ExxonMobil Guyana averaged 892,000 barrels per day (b/d) of crude oil production in December 2025 across its four producing developments in the Stabroek Block, according to newly released government data.
Production by project was 130,000 b/d at Liza 1, 244,000 b/d at Liza 2, 256,000 b/d at Payara, and 262,000 b/d at Yellowtail.
Yellowtail, the newest development, began producing oil in August and reached its initial production capacity of 250,000 b/d in November. The project’s ramp-up was the primary driver of higher overall output in the final months of the year.
December’s average compares with 894,000 b/d in November and 841,000 b/d in October, reflecting the step change in output after Yellowtail stabilized.
For the full year, crude oil production from the Stabroek Block averaged 716,000 b/d.
Liza 1 showed signs of natural decline during the year, falling from highs of around 160,000 b/d in some months of 2024 to 130,000 b/d in December 2025, consistent with the typical production profile of offshore oil projects that move from ramp-up to plateau and then gradual decline.
A new Stabroek Block project, Uaru, is due to start production this year, adding 250,000 b/d to capacity.
All offshore production in Guyana is operated by ExxonMobil, which holds a 45% stake in the Stabroek Block. Co-venturers include Hess, now part of Chevron, with 30%, and CNOOC with 25%.
Guyana’s Oil Ledger offers analyses of the latest oil production data and government oil fund receipts, published typically on a fortnightly basis. The column is authored by Kemol King, a journalist specializing in Guyana’s oil and gas sector.
