ExxonMobil has discovered oil on the Stabroek Block located offshore Guyana at the Tripletail-1 well in the Turbot area.

The latest discovery adds to the estimated recoverable resource of more than six billion oil-equivalent barrels announced earlier on the Stabroek Block.

Drilled in 6,572ft of water, the well Tripletail-1 encountered 108ft of a high-quality oil-bearing sandstone reservoir. It is located approximately 5km north-east of the Longtail discovery.

When the drilling is complete, the Noble Tom Madden drillship will move to drill the Uaru-1 well located 10km east of the Liza field.

ExxonMobil Exploration and New Ventures senior vice-president Mike Cousins said: “Together with our partners, ExxonMobil is deploying industry-leading capabilities to identify projects that can be developed efficiently and in a cost-effective way.”

The company noted that exploration and development activities are moving forward elsewhere on the Stabroek Block.

The Stena Carron drillship is currently drilling the Ranger-2 well and will carry out a well test at Yellowtail-1 upon completion.

The Noble Bob Douglas drillship is in the process of completing drilling operations for the Liza Phase 1 project.

Next month, ExxonMobil plans to add a fourth drillship, the Noble Don Taylor, as it continues to optimise its drilling plans.

ExxonMobil affiliate Esso Exploration and Production Guyana operates the 26,800km² Stabroek Block with a 45% interest.

Hess Guyana Exploration owns a 30% interest and the remaining 25% is held by CNOOC Petroleum Guyana, a wholly owned subsidiary of CNOOC.

In February, ExxonMobil made two discoveries at the Tilapia-1 and Haimara-1 wells in the Stabroek Block.

The discoveries bring the total number of discoveries on the block to 12.