Company Announcements

Sasanof-1 well mobilisation update

Source: RNS
RNS Number : 3997M
Clontarf Energy PLC
23 May 2022




23rd May 2022

Clontarf Energy plc

("Clontarf" or "the Company")



Sasanof-1 well mobilisation update


Clontarf Energy plc (AIM: CLON),is pleased to provide the following operational update on the drilling of the Sasanof-1 exploration well, and will issue further updates upon the completion of campaign milestones:

·    The Valaris MS-1 rig has arrived at the Sasanof-1 exploration well location on the Australian North West Shelf.

·    The MS-1 semi-submersible drilling rig completed the 190 Nautical Miles mobilisation safely and efficiently under tow from the support vessel, GO Spica.

·    While under tow, the support vessel, Far Senator, continued logistical support operations, mobilising drilling mud, bulk equipment and supplies from the Port of Dampier.

·    Primary anchors are now being run and will be followed by deployment of secondary and tertiary anchors; a total of 12 anchors will be set.

·    Once anchoring is complete, spudding of the prospective Sasanof-1 well, targeting multi Tcf (Trillion Cubic Feet) of gas , will start with jetting of the 36" conductor.

·    This will be followed by drilling the 17-1/2" intermediate hole section.



The Sasanof Prospect covers circa 400 km2 and is on trend, and up-dip of the liquids rich, low CO2 Mentorc Field.

ERC Equipoise Ltd ("ERCE") estimates the Sasanof Prospect to contain a 2U Prospective Resource of 7.2 Tcf gas and 176 Million barrels (bbls) condensate (P50), with a high case 3U Prospective Resource estimate of 17.8 Tcf gas and 449 Million bbls condensate (P10).  The Sasanof undiscovered resources figures in this announcement are based on an Independent Assessment of Hydrocarbon Volumes for the Sasanof Prospect, Western Australia completed by ERCE  in August 2021.

Sasanof is a large, seismic amplitude supported, structural-stratigraphic trap in the high-quality reservoir sands at the top of the Cretaceous Lower Barrow Group formation on the Barrow Delta within the Exmouth Plateau.

The overall "Equus Gas Project" area has a historic exploration drilling success rate of 88%, with 15 discoveries from 17 wells.

Western Gas (519P) Pty Ltd" is the holding company for the Sasanof prospect, with the following working interests:

·    Clontarf Energy Plc (AIM: CLON) - 10%

·    Western Gas (Operator) - 52.5%

·    Global Oil and Gas (ASX:GLV) - 25%

·    Prominence Energy (ASX:PRM) - 12.5%



This announcement contains inside information for the purposes of Article 7 of Regulation (EU) 596/2014.





For further information please visit or contact:




Clontarf Energy

David Horgan, Chairman

John Teeling, Director

+353 (0) 1 833 2833


Nominated & Financial Adviser

Strand Hanson Limited

Rory Murphy

Ritchie Balmer

+44 (0) 20 7409 3494



Novum Securities Limited

Colin Rowbury

        +44 (0) 207 399 9400

Financial PR

Megan Ray

+44 (0) 207 138 3206






Luke Hogg

Alan Tyrrell

Ciara Wylie

+353 (0) 1 661 4055


This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact or visit

RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy.