SEPTEMBER 2005 - STOCK EXCHANGE RELEASES
MAURITANIA OFFSHORE DRILLING UPDATE: (27-09-2005)



ROC advises that the following release was made earlier today by Woodside Petroleum Ltd:

 

Woodside Mauritania Pty. Ltd., a wholly-owned subsidiary of Woodside Petroleum Ltd., reports the following activity offshore Mauritania since the last report issued on 20 September 2005.

 

PSC Area B: Tevét-2 Combined Appraisal and Exploration Well

The ‘Stena Tay’ rig drilled the Tevét-2 well to a depth of 2,785 metres. Wireline logs, including fluid sampling and downhole pressure measurements, were acquired over the Miocene appraisal objective, where oil and gas was discovered in the Tevét-1 well. A preliminary evaluation of these data and data acquired while drilling has established that the well intersected a gross gas interval of approximately 1.5 metres above a gross oil interval of approximately 37 metres.

Whilst the hydrocarbon sands are of a similar thickness to those discovered in the Tevét-1 well, the amount of reservoir sand is less than expected. Further studies will be required to determine the significance of the Tevét-2 result.

At midnight on 26 September 2005, preparations were underway to drill to the next casing point. The well will then target a deeper exploration prospect. The planned total depth of the well is approximately 3,965 metres.

 

Chinguetti Development Wells

The 'West Navigator’ drillship continues to perform completion work on Chinguetti Development wells. Woodside does not plan to issue regular announcements regarding operations on Chinguetti development wells but will do so if necessary to comply with its continuous disclosure obligations under the ASX Listing Rules.

 

General

All reported drilling depths are referenced to the rig rotary table and all times are Universal Time (UTC) (Mauritanian time).

The locations of planned exploration wells and the Chinguetti Oil Field are shown on the attached map."

 

Participating Interests in the Chinguetti Joint Venture and relevant PSC areas are:

 

Company............................... . . . . Chinguetti Joint Venture . . . .. . . PSC-A . . . .. . . PSC-B . . . ..PSC-C, Block 6
Woodside group companies (Operator)....... . . . .47.38448%....... . . . . . .. 53.846%.... . ....53.846%.... . . . ..37.578%
Hardman.group companies........ . . . . . .. . . . . 19.00800%....... . . . . . . . 24.3%.... . . . . ..21.6%.... . . . .....22.422%
Groupe Project Chinguetti........ . . . . . .. . . . . 12.00000%....... . . . . . . . .. -- ... . . . . . . . ..-- .... . . . .. . . . ..--
BG group companies........ . . . . . .. . . . . . . .. . 10.23440%....... . . . . . . .13.084%............11.63% ........ . . . . .--
Premier group companies........................ . . . . 8.12328%....... . . . . . . . .. --.......... . .. ..9.231% ........ . . . . .--
Roc Oil group companies . . .. . . . . . . . . . . . 3.24984% . . .. . . . . . . 4.155% . . .. . . 3.693% . . .. . . . . 5.0%
Fusion group companies
....... . . . . . . .. . . . .. . . ..--....... . . . . ... . . . .. 4.615%.... . . . ......--.... . . . . . .. .....--
Petronas Carigali Overseas Sdn Bhd....... . . . . . . . .--....... . . . . . . . . . . .. --.... . ... . . .. ... --.... . . . .. . ..35.0%

 


Michelle Manook
General Manager – Corporate Affairs
E-mail:
mmanook@rocoil.com.au

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STOCK EXCHANGE RELEASE - LODGEMENT OF OPEN BRIEFING (corporatefile.com.au): (27-09-2005)

 

In order to view the Lodgement of Open Briefing (corporatefile.com) Record of interview with ROC CEO, Dr John Doran

(Update on Operations) click here



Michelle Manook
General Manager – Corporate Affairs
E-mail:
mmanook@rocoil.com.au

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TEVÉT-2 PRELIMINARY RESULTS, OFFSHORE MAURITANIA: (26-09-2005)




ROC advises that the PSC Area B Tevét-2 exploration-appraisal well has reached a depth of 2,785 metres measured depth below rotary table and logging operations are underway.

 

The well has drilled through the Miocene channel sand system which constitutes the shallower of the well's two objectives. The well will now be deepened to test a separate Cretaceous target with a planned total depth of approximately 3,965 metres.

Preliminary information from drilling and log results to date suggest that the well has encountered hydrocarbon-bearing sands in a sequence that bears comparison to the equivalent channel section drilled by the 2004 discovery well (Tevét-1) approximately 3km to the north. <view map>.

Further comment regarding the significance of Tevét-2 cannot be made until additional information being acquired has been analysed and completed.

Participating Interests in the Chinguetti Joint Venture and relevant PSC areas are:

 

Company............................... . . . . Chinguetti Joint Venture . . . .. . . PSC-A . . . .. . . PSC-B . . . ..PSC-C, Block 6
Woodside group companies (Operator)....... . . . .47.38448%....... . . . . . .. 53.846%.... . ....53.846%.... . . . ..37.578%
Hardman.group companies........ . . . . . .. . . . . 19.00800%....... . . . . . . . 24.3%.... . . . . ..21.6%.... . . . .....22.422%
Groupe Project Chinguetti........ . . . . . .. . . . . 12.00000%....... . . . . . . . .. -- ... . . . . . . . ..-- .... . . . .. . . . ..--
BG group companies........ . . . . . .. . . . . . . .. . 10.23440%....... . . . . . . .13.084%............11.63% ........ . . . . .--
Premier group companies........................ . . . . 8.12328%....... . . . . . . . .. --.......... . .. ..9.231% ........ . . . . .--
Roc Oil group companies . . .. . . . . . . . . . . . 3.24984% . . .. . . . . . . 4.155% . . .. . . 3.693% . . .. . . . . 5.0%
Fusion group companies
....... . . . . . . .. . . . .. . . ..--....... . . . . ... . . . .. 4.615%.... . . . ......--.... . . . . . .. .....--
Petronas Carigali Overseas Sdn Bhd....... . . . . . . . .--....... . . . . . . . . . . .. --.... . ... . . .. ... --.... . . . .. . ..35.0%

 


Michelle Manook
General Manager – Corporate Affairs
E-mail:
mmanook@rocoil.com.au

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CHINGUETTI SCHEDULE AND COST: (20-09-2005)



Consistent with ROC's release dated 8 September 2005, the operator of the Chinguetti Oil and Gas Field Development made the following release earlier today regarding the project's schedule and budget:

"The Woodside-operated offshore Chinguetti oil development in Mauritania remains on schedule for first oil in February 2006. The project is 88% complete.

The Chinguetti joint venture has completed an update of estimated project costs. Known project costs to complete the installation and start-up total US$705 million. An additional US$45 million has been set aside to cover unplanned contingencies that may occur during the offshore, deep-water installation program.

The current project cost estimate is primarily a result of increased drilling scope due to complex geology, resulting in extra time to drill sidetracks, as well as additional costs to prepare the subsea flowlines for installation.

The Chinguetti joint venture is operated under a production sharing contract subject to project cost recovery. Chinguetti joint venture interests are: Woodside 47.38448%; Hardman Resources 19.00800%, BG Group 10.23440%, Premier 8.12328%, Roc Oil 3.24984% and Groupe Projet Chinguetti 12%."

 


Michelle Manook
General Manager – Corporate Affairs
E-mail:
mmanook@rocoil.com.au

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MAURITANIA OFFSHORE DRILLING UPDATE: (20-09-2005)



ROC advises that the following release was made earlier today by Woodside Petroleum Ltd:

 

"Woodside Mauritania Pty. Ltd., a wholly-owned subsidiary of Woodside Petroleum Ltd., reports the following activity offshore Mauritania since the last report issued on 13 September 2005.



PSC Area B: Espadon-1A and Tevét-2 Wells

The Espadon-1A well was plugged and abandoned on 15 September 2005 following analysis of wireline logs which indicated no significant hydrocarbons were encountered in the well.

The Tevét-2 well was spudded on 16 September by the ‘Stena Tay’ drill rig and has been drilled to a depth of 1,510 metres where casing has been set.

The Tevét-2 well is located 2.5km to the south of the discovery well Tevét-1, in a water depth of 466 metres. The Tevét-2 well is a combined exploration and appraisal well to both appraise the Tevét discovery and target a deeper exploration prospect beneath the Tevét Miocene reservoir. The planned total depth of the well is approximately 3,965 metres.

At midnight on 19 September 2005, preparations were underway to drill ahead to the shallower of two objectives.

Chinguetti Development Wells

The 'West Navigator’ drillship continues to perform completion work on Chinguetti Development wells. Woodside does not plan to issue regular announcements regarding operations on Chinguetti development wells but will do so if necessary to comply with its continuous disclosure obligations under the ASX Listing Rules.


General

All reported drilling depths are referenced to the rig rotary table and all times are Universal Time (UTC) (Mauritanian time).

The locations of planned exploration wells and the Chinguetti Oil Field are shown on the attached map”.



Participating Interests in the Chinguetti Joint Venture and relevant PSC areas are:

 

Company............................... . . . . Chinguetti Joint Venture . . . .. . . PSC-A . . . .. . . PSC-B . . . ..PSC-C, Block 6
Woodside group companies (Operator)....... . . . .47.38448%....... . . . . . .. 53.846%.... . ....53.846%.... . . . ..37.578%
Hardman.group companies........ . . . . . .. . . . . 19.00800%....... . . . . . . . 24.3%.... . . . . ..21.6%.... . . . .....22.422%
Groupe Project Chinguetti........ . . . . . .. . . . . 12.00000%....... . . . . . . . .. -- ... . . . . . . . ..-- .... . . . .. . . . ..--
BG group companies........ . . . . . .. . . . . . . .. . 10.23440%....... . . . . . . .13.084%............11.63% ........ . . . . .--
Premier group companies........................ . . . . 8.12328%....... . . . . . . . .. --.......... . .. ..9.231% ........ . . . . .--
Roc Oil group companies . . .. . . . . . . . . . . . 3.24984% . . .. . . . . . . 4.155% . . .. . . 3.693% . . .. . . . . 5.0%
Fusion group companies
....... . . . . . . .. . . . .. . . ..--....... . . . . ... . . . .. 4.615%.... . . . ......--.... . . . . . .. .....--
Petronas Carigali Overseas Sdn Bhd....... . . . . . . . .--....... . . . . . . . . . . .. --.... . ... . . .. ... --.... . . . .. . ..35.0%

 


Michelle Manook
General Manager – Corporate Affairs
E-mail:
mmanook@rocoil.com.au

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MAURITANIA OFFSHORE DRILLING UPDATE: (13-09-2005)



ROC advises that the following release was made earlier today by Woodside Petroleum Ltd:

 

"Woodside Mauritania Pty. Ltd., a wholly-owned subsidiary of Woodside Petroleum Ltd., reports the following activity offshore Mauritania since the last report issued on 6 September 2005.



PSC Area B: Espadon-1A Exploration Well

The Espadon-1A well was drilled by the ‘Stena Tay’ drill rig to a final depth of 3,042 metres. Wireline logs were then acquired for the well. Preliminary analysis of these logs and data acquired while drilling indicate that no significant hydrocarbons were encountered in the well.

At midnight on 12 September 2005, preparations were underway to plug and abandon the well. The ‘Stena Tay’ will then move to the Tevét-2 well location.

Chinguetti Development Wells

The 'West Navigator’ drillship continues to perform completion work on Chinguetti Development wells. Woodside does not plan to issue regular announcements regarding operations on Chinguetti development wells, but will do so if necessary to comply with its continuous disclosure obligations under the ASX Listing Rules.


General

All reported drilling depths are referenced to the rig rotary table and all times are Universal Time (UTC) (Mauritanian time).

The locations of planned exploration wells and the Chinguetti Oil Field are shown on the attached map.”



Participating Interests in the Chinguetti Joint Venture and relevant PSC areas are:

 

Company............................... . . . . Chinguetti Joint Venture . . . .. . . PSC-A . . . .. . . PSC-B . . . ..PSC-C, Block 6
Woodside group companies (Operator)....... . . . .47.38448%....... . . . . . .. 53.846%.... . ....53.846%.... . . . ..37.578%
Hardman.group companies........ . . . . . .. . . . . 19.00800%....... . . . . . . . 24.3%.... . . . . ..21.6%.... . . . .....22.422%
Groupe Project Chinguetti........ . . . . . .. . . . . 12.00000%....... . . . . . . . .. -- ... . . . . . . . ..-- .... . . . .. . . . ..--
BG group companies........ . . . . . .. . . . . . . .. . 10.23440%....... . . . . . . .13.084%............11.63% ........ . . . . .--
Premier group companies........................ . . . . 8.12328%....... . . . . . . . .. --.......... . .. ..9.231% ........ . . . . .--
Roc Oil group companies . . .. . . . . . . . . . . . 3.24984% . . .. . . . . . . 4.155% . . .. . . 3.693% . . .. . . . . 5.0%
Fusion group companies
....... . . . . . . .. . . . .. . . ..--....... . . . . ... . . . .. 4.615%.... . . . ......--.... . . . . . .. .....--
Petronas Carigali Overseas Sdn Bhd....... . . . . . . . .--....... . . . . . . . . . . .. --.... . ... . . .. ... --.... . . . .. . ..35.0%

 


Michelle Manook
General Manager – Corporate Affairs
E-mail:
mmanook@rocoil.com.au

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EXTRACTS FROM PRESENTATION TO THE GOOD OIL CONFERENCE IN PERTH ON 8 SEPTEMBER 2005: (08-09-2005)


Attached are the slides used by Dr John Doran in his presentation to the Good Oil Conference in Perth on 8 September 2005.
The slides have been selected on the basis that they contain new data which could be considered to be material to ROC shareholders.

< click here to view >.



Michelle Manook
General Manager – Corporate Affairs
E-mail:
mmanook@rocoil.com.au

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MAURITANIA OFFSHORE DRILLING UPDATE: (06-09-2005)



ROC advises that the following release was made earlier today by Woodside Petroleum Ltd:

 

"Woodside Mauritania Pty. Ltd., a wholly-owned subsidiary of Woodside Petroleum Ltd., reports the following activity offshore Mauritania since the last report issued on 30 August 2005.



PSC Area B: Espadon-1 and Espadon-1A Exploration Wells

The Espadon-1 well was drilled by the ‘Stena Tay’ drill rig to a depth 2,523 metres. Due to operational difficulties it was necessary to respud the well. The Espadon-1A well was spudded on 4 September and drilled to a depth of 2,500 metres. At midnight on 5 September 2005 preparations were underway to run casing before drilling ahead to a planned total depth of 3,055 metres.

 

Chinguetti Development Wells

The 'West Navigator’ drillship continues to perform completion work on Chinguetti Development wells. Woodside does not plan to issue regular announcements regarding operations on Chinguetti development wells, but will do so if necessary to comply with its continuous disclosure obligations under the ASX Listing Rules.


General

All reported drilling depths are referenced to the rig rotary table and all times are Universal Time (UTC) (Mauritanian time).

The locations of planned exploration wells and the Chinguetti Oil Field are shown on the attached map.”



Participating Interests in the Chinguetti Joint Venture and relevant PSC areas are:

 

Company............................... . . . . Chinguetti Joint Venture . . . .. . . PSC-A . . . .. . . PSC-B . . . ..PSC-C, Block 6
Woodside group companies (Operator)....... . . . .47.38448%....... . . . . . .. 53.846%.... . ....53.846%.... . . . ..37.578%
Hardman.group companies........ . . . . . .. . . . . 19.00800%....... . . . . . . . 24.3%.... . . . . ..21.6%.... . . . .....22.422%
Groupe Project Chinguetti........ . . . . . .. . . . . 12.00000%....... . . . . . . . .. -- ... . . . . . . . ..-- .... . . . .. . . . ..--
BG group companies........ . . . . . .. . . . . . . .. . 10.23440%....... . . . . . . .13.084%............11.63% ........ . . . . .--
Premier group companies........................ . . . . 8.12328%....... . . . . . . . .. --.......... . .. ..9.231% ........ . . . . .--
Roc Oil group companies . . .. . . . . . . . . . . . 3.24984% . . .. . . . . . . 4.155% . . .. . . 3.693% . . .. . . . . 5.0%
Fusion group companies
....... . . . . . . .. . . . .. . . ..--....... . . . . ... . . . .. 4.615%.... . . . ......--.... . . . . . .. .....--
Petronas Carigali Overseas Sdn Bhd....... . . . . . . . .--....... . . . . . . . . . . .. --.... . ... . . .. ... --.... . . . .. . ..35.0%

 


Michelle Manook
General Manager – Corporate Affairs
E-mail:
mmanook@rocoil.com.au

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CHANGE OF NOMINATED ADVISER AND BROKER: (05-09-2005)




ROC advises that it has appointed Oriel Securities Limited (“Oriel”) as its Nominated Adviser (“NOMAD”) and Broker in the United Kingdom with immediate effect. Oriel replaces Canaccord Capital (Europe) Limited who acted as NOMAD and broker on behalf of ROC from the commencement of its listing on the Alternative Investment Market of the London Stock Exchange ("AIM") in August 2005.



ROC is an Australian oil and gas exploration company, listed on the Australian Stock Exchange ("ASX") since August 1999 and AIM since August 2004.

Oriel’s successful appointment is attributed to its oil and gas sector expertise, experience advising dual listed companies and its growing reputation in the UK.



CEO, Dr John Doran said of the appointment,

“A key goal for ROC is to expand its UK shareholder base and create a greater market presence outside of Australia and we have every confidence that Oriel will provide the experience and insights necessary to achieve that.”



Michelle Manook
General Manager – Corporate Affairs
E-mail:
mmanook@rocoil.com.au

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