Petrobras has confirmed a second oil-bearing interval at its Morpho well in block FZA-M-59 offshore Brazil, further supporting the exploration potential of the frontier Foz do Amazonas Basin.

The Morpho well is one of the highest-profile frontier exploration projects offshore Brazil, with industry interest focused on whether discoveries in the Foz do Amazonas Basin could open a new exploration province along the country's equatorial margin.

Petrobras announced the initial discovery at Morpho in August and subsequently confirmed the presence of good-quality oil.

Following the initial discovery, announced in mid-August, the company said drilling operations on the 1-BRSA-1405-APS well would continue to assess deeper exploratory intervals.

This led to the new discovery, which was confirmed via electrical logs, indications in rock samples and fluid samples taken during operations.

The result provides new insight into the area’s exploratory potential, Petrobras said, and should provide further information for understanding the petroleum systems and resource potential of the Foz do Amazonas sedimentary basin.

Analysis of results from the initial discovery had confirmed good-quality oil.

Petrobras now plans to complete drilling activities, followed by evaluation of the identified formations.