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Exxon Mobil Announces Ninth Oil Discovery Offshore Guyana

| Editor: Ahlam Rais

The Hammerhead-1 well is located approximately 13 miles (21 kilometers) southwest of the Liza-1 well in the region.
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The Hammerhead-1 well is located approximately 13 miles (21 kilometers) southwest of the Liza-1 well in the region. (Source: Deposit Photos)

The region’s Hammerhead-1 well comprises of high-quality and oil-bearing sandstone. The discovery has led to the announcement of an estimated recoverable resource of more than 4 billion oil-equivalent barrels.

Texas/USA – Exxon Mobil has recently made its ninth discovery offshore Guyana at the Hammerhead-1 well, marking its fifth discovery on the Stabroek Block in the past year and proving a new play concept for potential development. Hammerhead-1 encountered approximately 197 feet (60 meters) of high-quality, oil-bearing sandstone reservoir. The well was safely drilled to 13,862 feet (4,225 meters) depth in 3,773 feet (1,150 meters) of water. The Stena Carron drillship began drilling on July 27, 2018.

Hammerhead-1 is located approximately 13 miles (21 kilometers) southwest of the Liza-1 well and follows previous discoveries on the Stabroek Block at Liza, Liza Deep, Payara, Snoek, Turbot, Ranger, Pacora and Longtail. Those previous discoveries led to the announcement of an estimated recoverable resource of more than 4 billion oil-equivalent barrels discovered to date, and the potential for up to five floating production, storage and offloading (FPSO) vessels producing more than 750,000 barrels per day by 2025.

There is potential for additional production from significant undrilled targets and plans for rapid exploration and appraisal drilling. A second exploration vessel, the Noble Tom Madden, is due to arrive in Guyana in October to accelerate exploration of high potential opportunities and will commence drilling at the Pluma prospect approximately 17 miles (27 kilometers) from Turbot.

Liza Phase 1, which is expected to begin producing oil by early 2020, will use the Liza Destiny FPSO vessel to produce up to 120,000 barrels of oil per day. Construction of the FPSO and subsea equipment is well advanced. Pending government and regulatory approvals, Phase 2 is targeted for sanctioning by the end of this year. It will use a second FPSO designed to produce up to 220,000 barrels per day and is expected to be producing in 2022. A third development, Payara, will target sanctioning in 2019 and use an FPSO designed to produce approximately 180,000 barrels of oil per day as early as 2023.

The Stabroek Block is 6.6 million acres (26,800 square kilometers). Exxon Mobil affiliate, Esso Exploration and Production Guyana, is operator and holds 45 per cent interest in the Stabroek Block. Hess Guyana Exploration holds 30 per cent interest and CNOOC Nexen Petroleum Guyana holds 25 per cent interest.

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