Brazilian state-controlled energy company Petrobras has identified a new natural gas deposit at the Sandia-1 exploratory well in deep waters off the coast of Colombia.
The well is located within Block GUA-OFF-O, nearly 42km from the shoreline in water depths of 1,251m.
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Drilling at Sandia-1 began on 12 June 2026 and reached the target depth by 29 July 2026.
Zones where gas was detected are currently undergoing evaluation using well logging, with further analysis planned in the laboratory.
The Sandia-1 site is positioned 18km from the earlier Sirius-1 and Sirius-2 wells, and 9km from the Copoazu-1 discovery, all in the same region offshore Colombia.
The proximity of these wells is said to highlight the area’s gas potential, with the new discovery expected to contribute additional resources for regional energy needs.
Operations in Block GUA-OFF-O are managed by Petrobras’ subsidiary, Petrobras International Braspetro-Colombia Branch, which holds a 44.44% operating interest, while Ecopetrol owns 55.56%.
Petrobras noted that its exploration work in the block is part of a broader strategy to replenish oil and natural gas reserves and support energy supply during the ongoing transition in global energy markets.
In May this year, Petrobras began oil production at the Búzios 8 project using the P-79 floating production, storage and offloading unit in the Búzios field, located in the pre-salt area of Brazil’s Santos Basin.
The company reported that the project had come on stream ahead of the schedule set in its 2026–30 business plan. P-79 is the eighth production platform to operate in the Búzios field.
