Petrobras Announces Gas Discovery Off Colombia Coast in Sandia-1 Well

Brazil's state-controlled oil giant confirms new find in deep waters approximately 42 kilometers from shore, adding to regional energy security.

PETR4 · 2026-08-03 · MarginX

New Discovery in Colombian Waters

Petróleo Brasileiro S.A. - Petrobras disclosed a new gas discovery in the Sandia-1 exploratory well located in Block GUA-OFF-O in deep waters offshore Colombia, according to a 6-K filing submitted August 3, 2026.

The well is situated approximately 42 kilometers from the coast at a water depth of 1,251 meters (6-K filing, 2026-08-03). The discovery adds to a cluster of finds in the region, positioned 18 kilometers from the Sirius-1 discovery and Sirius-2 appraisal wells, and 9 kilometers from the Copoazu-1 discovery well, "highlighting the gas potential in Colombia's offshore" and contributing to regional energy security (6-K filing, 2026-08-03).

Drilling Operations and Evaluation

Drilling at Sandia-1 commenced on June 12, 2026, and reached final depth on July 29, 2026, "following high operational standards and respecting the environment and people" (6-K filing, 2026-08-03). The company stated that zones where gas was detected are being evaluated through well logs, with laboratory analyses to follow.

Petrobras operates the Block GUA-OFF-O consortium through its subsidiary Petrobras International Braspetro B.V – Colombia Branch (PIB-COL), holding a 44.44% interest. Colombian state oil company Ecopetrol S.A. holds the remaining 55.56% stake (6-K filing, 2026-08-03).

Strategic Context

The Brazilian oil major characterized its Colombian offshore activities as aligned with its "long-term strategy, aiming to replenish oil and gas reserves through exploration of new frontiers and partnerships with other companies, contributing to the supply of global energy demand during the energy transition" (6-K filing, 2026-08-03).

The disclosure comes as Petrobras, with a market capitalization of approximately $119 billion and shares last trading at 46.6651, prepares to report second-quarter 2026 results. According to MarginX data, the company is scheduled to release earnings on August 6, 2026, followed by an earnings call on August 7, 2026.

International Exploration Profile

The Colombia discovery represents Petrobras's continued international exploration efforts beyond its core Brazilian operations, where the company dominates deepwater pre-salt production. The partnership structure with Ecopetrol follows a model increasingly common in the company's international ventures, balancing operational expertise with local partner participation.

While the filing did not provide volume estimates or commerciality assessments for the Sandia-1 discovery, the proximity to multiple other finds in the block suggests potential for future development synergies. The company noted that detailed evaluation work, including laboratory analysis of samples, remains ongoing.

The filing was signed by Fernando Sabbi Melgarejo, Chief Financial Officer and Investor Relations Officer, and included standard forward-looking statement disclaimers noting that future results may differ from current expectations (6-K filing, 2026-08-03).

This article was generated by MarginX from the 6-K filing on 2026-08-03. It is not investment advice.

Go deeper on PETR4 — scores, valuation multiples, filings and earnings-call search on MarginX.