Acacia Este 2 Update

RNS Number:2580P
Black Rock Oil & Gas PLC
04 March 2008


For immediate release                                             4 March 2008


                            Black Rock Oil & Gas Plc
                        ("Black Rock" or the "Company")
                              Acacia Este 2 Update


On 14 January 2008 Black Rock Oil & Gas Plc ("Black Rock" or the "Company"),
stock code: BLR, the AIM-traded oil and gas exploration and production company,
announced that testing on the Acacia Este 2 appraisal well in the Las Quinchas
Association Contract in Colombia had been initiated by its joint venture
operator, Kappa Resources Colombia Limited ("Kappa").


Acacia Este 2 was drilled 500 metres north of Acacia Este 1 to a total depth of
3752 feet. Oil shows were encountered over more than one hundred feet whilst
drilling the target Tertiary-aged Lower Mugrosa Formation. Multiple zones are
now being tested in Acacia Este 2 in order to assess the well's potential
productivity.


Three intervals in the Lower Mugrosa were perforated in Acacia Este 2 and the
swab testing and ongoing extended well test with a PCP pump have confirmed heavy
oil production with a water cut less than 1%. Analysis of the oil indicates that
it has a gravity of 14.9degrees API, which is similar to Acacia Este 1.
Production rose to a maximum of 20 BOPD (barrels of oil per day) but currently
the well is producing between 5 and 10 BOPD. Evaluation and testing of the well
is ongoing.



Acacia Este 1 is currently pumping between 50 and 60 barrels of 14.9degreesAPI
heavy oil per day under long-term production test. Additional storage facilities
have been installed at the Acacia Este Field site.


The Operator is also currently preparing the Arrinconada well site on the
Alhucema E&P Contract for drilling of the well in the next few months.


Dr John Cubitt, Managing Director of Black Rock Oil & Gas Plc, commented:


"The results so far from the production test on Acacia Este-2 together with the
continuing long term production test from Acacia Este-1 are positive for the
field. The next important milestone for Acacia Este is the acquisition of the
seismic to better understand the field ahead of selecting the drilling location
for the Acacia Este-3 well."


Qualified Person


Dr John Cubitt (a Director of the Company) has been involved in the oil and gas
production industry for more than 26 years. Dr John Cubitt is a registered
Chartered Geologist (CGeol) and has a BSc and PhD in geology. He has compiled,
read and approved the technical disclosure as it relates to Black Rock in this
regulatory announcement.


Enquiries:

Black Rock Oil & Gas Plc                               Tel: [phone]
Dr John Cubitt, Managing Director                      www.blackrockoil.com
                                                       ----------------------

Beaumont Cornish Limited (Nominated Adviser)           Tel: [phone]
Michael Cornish

Hanson Westhouse Limited (Broker to the Company)       Tel: [phone]
Tim Feather / Matthew Johnson

Aquila Financial Limited                               Tel: [phone]
Peter Reilly


ENDS



                      This information is provided by RNS
            The company news service from the London Stock Exchange

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