Guyana project overview

ExxonMobil initiated oil and gas exploration activities in Guyana in 2008, collecting and evaluating substantial 3-D seismic data that led to the company safely drilling its first exploration well in 2015, Liza-1.

Article May 29, 2019

In this article

Guyana project overview

Drilling activity in the Stabroek Block

  • Liza-1 well discovery was announced in May 2015
  • Liza-2 well was drilled and tested in July 2016
  • Liza-3 well was drilled in October 2016, confirming a world-class resource discovery in excess of 1 billion oil-equivalent barrels
  • Liza-4 well was drilled in March 2017 and encountered more than 197 feet of high-quality, oil-bearing sandstone reservoirs, which will underpin a potential Liza Phase 2 development
  • Appraisal drilling at Liza 3 identified an additional high quality deeper reservoir directly below the Liza field, which is estimated to contain resources between 100 and 150 million oil-equivalent barrels
  • Skipjack-1 was drilled in September 2016; this did not encounter commercial quantities of hydrocarbons
  • Payara-1 well discovery was announced in January 2017. Payara is ExxonMobil’s second oil discovery on the Stabroek Block and was drilled in a new reservoir — encountering more than 95 feet of high quality, oil bearing sandstone reservoirs
  • Payara-2 well discovery was announced in July 2017. Payara-2 encountered 59 feet (18 meters) of high-quality, oil-bearing sandstone reservoirs
  • Snoek-1 well discovery was announced in March 2017. Snoek is ExxonMobil’s third oil discovery on the Stabroek Block and was drilled in a new reservoir — encountering 82 feet (25 meters) of high-quality, oil-bearing sandstone reservoir
  • Turbot-1 well discovery was announced in October 2017. Turbot is ExxonMobil’s fifth oil discovery on the Stabroek Block and was drilled in a new reservoir — encountering approximately 75 feet (23 meters) of high-quality, oil-bearing sandstone reservoir
  • Ranger-1 well discovery was announced in January 2018. Ranger is ExxonMobil’s sixth oil discovery on the Stabroek Block and was drilled in a new reservoir- encountering approximately 230 feet (70 meters) of high-quality, oil-bearing carbonate reservoir
  • Pacora-1 well discovery was announced in February 2018. Pacora is ExxonMobil’s seventh oil discovery on the Stabroek Block and was drilled in a new reservoir — encountering approximately 65 feet (20 meters) of high-quality, oil-bearing sandstone reservoir
  • Sorubim-1 was drilled in April 2018; this did not encounter commercial quantities of hydrocarbons
  • Longtail-1 well discovery was announced in June 2018. Longtail is ExxonMobil’s eighth oil discovery on the Stabroek Block and was drilled in a new reservoir — encountering approximately 256 feet (78 meters) of high-quality, oil-bearing sandstone reservoir
  • Hammerhead-1 well discovery was announced in August 2018. Hammerhead is ExxonMobil’s ninth oil discovery on the Stabroek Block and was drilled in a new reservoir — encountering approximately 197 feet (60 meters) of high-quality, oil-bearing sandstone reservoir
  • Pluma-1 well discovery was announced December 2018. Pluma is ExxonMobil’s tenth on the Stabroek Block and was drilled in a new reservoir — encountering approximately 121 feet (37 meters) of high-quality hydrocarbon-bearing sandstone reservoir
  • Tilapia-1 well was announced in January 2019. Tilapia-1 encountered approximately 305 feet (93 meters) of high-quality oil-bearing sandstone reservoir
  • Haimara-1 well discovery was announced in January 2019. Haimara-1 encountered approximately 207 feet (63 meters) of high-quality, gas-condensate bearing sandstone reservoir
  • Yellowtail-1 well discovery was announced in April 2019. Yellowtail-1 encountered approximately 292 feet (89 meters) of high-quality oil bearing sandstone reservoir
  • Tripletail-1 well discovery was announced in September 2019. Tripletail-1 encountered approximately 108 feet (33 meters) of high-quality oil bearing sandstone reservoir
  • The gross recoverable resource for the Stabroek Block is now estimated to be more than 6 billion oil equivalent barrels, including Liza and other successful exploration wells on Payara, Liza deep, Snoek, Turbot, Ranger, Pacora, Longtail, Hammerhead, Pluma, Tilapia, Haimara, Yellowtail and Tripletail

Liza Phase 1 project - Development description

  • The Liza Phase 1 development is approximately 190 kilometers offshore in water depths of 1,500 – 1,900 meters
  • The development plan includes completion of a floating production, storage and offloading (FPSO) vessel designed to produce up to 120,000 barrels of oil per day
  • Four drill centers are envisioned with 17 wells in total; eight production wells, six water injection wells, and three gas injection wells
Guyana project subsea field layout graphic

Liza Phase 2 project - Development description

The development plan involves a second floating, production, storage and offloading vessel (FPSO) and related subsea equipment, umbilical, risers and flowlines.

The development concept is similar to that of Liza phase 1. A total of six drill centers with approximately 30 wells, including 15 production, 9 water injection and 6 gas injection wells. Liza Phase 2 startup is expected in mid-2022 and will develop approximately 600 million barrels of oil.

Liza Phase 2 will produce up to 220,000 barrels of oil per day and further capitalize on the significant development potential of the Stabroek Block.

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