News Digest (www.upstreamonline.com)
The Falcao-1X exploration well, drilled by Shell in Block 10 offshore Sao Tome & Principe, has concluded without discovering commercially viable hydrocarbons. The well, targeting an Upper Cretaceous prospect in approximately 3000 meters of water, was drilled over two months by the Stena DrillMax drillship and completed in early December.
Outcome and Data Value
Despite the unsuccessful commercial result, the National Petroleum Agency (ANP) of Sao Tome & Principe emphasized that the operation yielded valuable geological data for the frontier basin. This information will be integrated into future analyses to guide subsequent exploration stages in the area. The ANP also confirmed the well was drilled and completed safely.
Partnership
Shell's partner in Block 10 is Petrobras. Shell was contacted for comment regarding the well's outcome.
20 January 2026
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