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August 12 2019


This story is developing and will be updated.

Director, Department of Energy, Dr. Mark Bynoe, this morning, announced that UK-based Tullow Oil Plc’s wholly owned subsidiary Tullow Guyana B.V.  Jethro-1 exploration well, drilled in the Orinduik Block offshore Guyana, has discovered oil in commercial quantities.

According to a release today from the Ministry of the Presidency, the Jethro-1 well was drilled by the Stena Forth drillship to a total depth of 4,400 metres in approximately 1,350 metres of water. Dr. Bynoe said the Jethro-1 well is the first discovery on the Orinduik Block and comprises high-quality oil-bearing sandstone reservoirs of Lower Tertiary age.


The discovery is significant as it is the first reputed commercial find outside of the Stabroek Block which has seen ExxonMobil hitting 11 major finds since May 2015. Tullow’s discovery will likely attract even more investor interest to the Guyana basin.The Stabroek Block has already been assessed at around  six billion barrels of oil equivalent.

“This is a major development for the Co-operative Republic of Guyana (CRG) as it adds to the further de-risking of the deep and ultra-deep zone. Furthermore, it offers significant potential for the diversification of the CRG’s hydrocarbon production base,” Dr. Bynoe said, according to the release.

He said that the well encountered 55m of net oil pay which supports a recoverable oil resource estimate that exceeds Tullow’s pre-drill forecast.

“The Department of Energy (DE) is encouraged by the prolific rate of discovery in the CRG and will continue to work assiduously and conscientiously to extract optimum value from these resources for all the peoples of our country,” the Director stated.

Dr. Bynoe said that this new discovery demonstrates the vastness of Guyana’s natural resources while reminding that Guyanese stand to benefit significantly from the oil finds and must therefore continue to be aspirational and focused with a transformational mindset.

With this new find, Tullow will now evaluate the data from the Jethro-1 discovery and determine the appropriate appraisal protocols.

Dr. Bynoe stated that the Jethro discovery significantly de-risks other Tertiary age prospects on the Orinduik Block, which includes the shallower Upper Tertiary Joe prospect. Drilling should begin there later this month after the termination of operations at the Jethro-1 well.

The Carapa-1 well will be drilled later this year on the adjacent Kanuku licence. Tullow Guyana B.V. operates the Orinduik block with a 60 per cent stake. Total E&P Guyana B.V. holds 25 per cent stake while the other 15 per cent is being held by Eco (Atlantic) Guyana Inc.

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Bhai DJ I saw that discovery trending on the major networks..

Tullow Oil makes ‘high value’ discovery in Guyana

Find could yield more than 100m barrels and is ‘potentially transformation 


Tullow Oil has made what analysts have described as a “potentially transformational” oil discovery in Guyana, which could yield well over 100m recoverable barrels.

The London-listed oil explorer announced on Monday the results of a drilling

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