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Project overview

Exploration wells drilled 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
  • The Payara discovery is estimated at approximately 500 million oil-equivalent barrels
  • 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 more than 82 feet of high quality, oil bearing sandstone reservoirs; the well data will be analyzed in the coming month to better understand the full potential of the well
  • 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 75 feet (23 meters) of high-quality, oil-bearing sandstone reservoirs
  • Ranger-1 well is ExxonMobil’s latest discovery to date, the discovery was announced in January 2018, Ranger-1 well encountered approximately 230 feet (70 meters) of high-quality, oil-bearing carbonate reservoir. The well was safely drilled to 21,161 feet (6,450 meters) depth in 8,973 feet
  • The gross recoverable resources for the Stabroek block are now estimated to total more than 3.2 billion recoverable oil-equivalent barrels, including Liza, Liza Deep, Payara, Snoek and Turbot
  • The Stena Carron drillship will move to the Pacora prospect, 4 miles from the Payara discovery
  • Further exploration drilling is planned on the Stabroek Block for 2018, including potential appraisal drilling at the Ranger discovery

Guyana project overview map

Liza Phase 1 project

Development description

  • Liza Phase 1 development is approximately 190 kilometers offshore in water depths of 1500 – 1900 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
  • The FPSO facility will develop approximately 450 million barrels of oil from the Liza Field
  • Four drill centers are envisioned with 17 wells total: eight production wells; six water injection wells; three gas injection wells

Liza Phase 1 project

Recent activities

  • Esso Exploration and Production Guyana Limited (EEPGL) submitted an application for a production license and the initial development plan for the Liza field in December 2016
  • The development plan includes development drilling, operation of the FPSO, and subsea, umbilical, riser and flowline systems
  • EEPGL awarded contracts to SBM offshore for an FPSO vessel.  Under the contract, SBM offshore will perform front end engineering and design (FEED) for the FPSO, and, subject to a final investment decision in 2017, will construct, install and operate the vessel
  • EEPGL awarded contracts to TechnipFMC for the engineering, manufacture and delivery of the subsea production system (SPS) equipment for the proposed Liza deep water project
  • EEPGL awarded contracts to  Saipem for the engineering, procurement, construction and installation (EPCI ) of the subsea umbilicals, risers and flowlines for the Liza deep water project
  • In June 2017, the Guyana Environmental Protection Agency issued an environmental permit and the Ministry of Natural Resources  issued a production license for the Liza field
  • In June 2017, ExxonMobil announced a final investment decision to proceed with development of the first phase of oil production at the Liza field offshore Guyana
  • In June 2017, EEPGL awarded contracts for shore base services for the Liza Phase 1 development to Guyana Shore Base Inc (GYSBI), a majority Guyanese-owned corporation located in the Muneshwers Houston Port
  • In August, EEPGL awarded contracts for drilling services to Noble Corp. The Noble Bob Douglas drillship was contracted for a three-year period and is expected to start drilling Liza Phase 1 development wells in first half of 2018
  • ExxonMobil is currently shooting baseline 4D Seismic over the Liza Field

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Liza Phase 1 project

Field layout

fpso subsea field layout

Liza Phase 1 project


Subsea, Umbilical, Risers and Flowlines (SURF) Installation

  • Fleet of specialty and multi-purpose vessels for installation
  • Majority of SURF equipment shipped directly offshore, some staging of materials at shorebase 
  • Placement of risers and flowlines on the seabed until FPSO arrival
  • Concurrent drilling and installation operations

Floating Production Storage and Offloading (FPSO) Installation

  • Installation of mooring system to keep the vessel in place 
  • Connection of FPSO to mooring system and SURF components
  • Perform final onsite commissioning of remaining FPSO and SURF systems
  • Startup of FPSO and SURF components for production operations

Liza Phase 1 project

Logistics support

  • Logistics support for 1 FPSO and 1 to 2 drilling vessels
  • Use of shorebase, warehouses, pipeyards and waste facilities
  • Marine support vessels
  • Aviation support

Liza Phase 1 project

Production operations

FPSO offloading to conventional tanker illustration

  • FPSO capable of producing 120,000 barrels of oil per day
  • FPSO has 60-80 personnel for routine operations
  • Tug assisted offloading to conventional tanker approximately every 5-10 days at peak production