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Cambrian Oil & Gas PLC
10 August 2005

Cambrian Oil & Gas Plc ('COIL' or the 'Company')

10 August 2005

Geochemistry Confirms Presence of Hydrocarbons



Cambrian Oil & Gas Plc (AIM : COIL), the oil and gas exploration, development
and production company with assets in the Kyrgyz Republic announces the
completion of a wide ranging geochemistry survey in the South Karagundai and
Shink Sai prospects in its Tash Kumyr licence.



Key Points

Cambrian Oil & Gas Plc's subsidiary, JSC KNG Hydrocarbons, has now
completed a wide ranging geochemistry survey over the South Karagundai and
Shink Sai prospects in the Tash Kumyr exploration licence.

W.L. Gore & Associates has reported on the results of the survey, which
used the company's GORE(TM) Survey for Exploration, an advanced
geochemistry technology.

Over 300 modules were deployed in a grid over the two prospect areas, which
had shown clear hydrocarbon indications from an earlier screening study.

The GORE(TM) Survey suggests that several geochemical features conform to
major aspects of previous structural interpretations at the primary
Palaeogene target depths.

A number of additional positive geochemical anomalies have been
identified outside of previously identified structural features.

The results also indicate there may be additional hydrocarbons
in deeper horizons as occur in adjoining areas.

An extensive seismic survey is about to commence with the aim of
defining drillable targets.



Confirmation of the presence of Hydrocarbons within the licence area and
additional positive geochemical anomalies being discovered will assist the
Company in identifying further drill targets later in 2005.



Neale Taylor, CEO of Cambrian Oil & Gas said that 'The results are encouraging
and have been used to modify the layout of the Company's imminent seismic
survey. The results of both surveys would then be combined to gain a fuller
understanding of the geological system in the survey area. With a combined
interpretation in hand later in the year, the Company expects to identify
several drilling locations.'



Gore's report states: 'The results of the GORE(TM) Survey over JSC KNG
Hydrocarbon's licence area in the Fergana Basin in Kyrgyzstan are positive and
repeatable. Based on geochemical modelling results, the survey area shows great
promise for the presence of hydrocarbon reservoirs of both oil and natural gas.
These oil and gas accumulations are likely similar to the hydrocarbons found in
producing wells Mailisu #411 (oil) and Izbashkent #123 (gas), respectively,
which were used for comparison purposes.



Statistical modelling was extremely stable and consistent. This result may be
due to the combination of above-average mass values collected on the modules and
the unique chemical fingerprint of the subsurface hydrocarbons.



Several geochemical features conform to the Palaeogene structural
interpretations offered during the course of interpretation. The Gore survey
results suggest that the structural surface may be a hybrid of the two
structural interpretations provided by the client. Alternatively, the results
may suggest that there are hydrocarbons associated with horizons other than the
Palaeogene mapped horizons considered in this report. These possibilities could
account for differences between the geochemical interpretation and the
structural interpretations provided.'



Ends

Cambrian Oil & Gas FY net loss 441,000 stg

LONDON (AFX) - AIM-listed Cambrian Oil & Gas PLC said net loss widened to
441,000 stg from a loss of 340,000 stg a year earlier.
Loss per share for the year to June 30 was 0.4p against a loss of 0.7p,
Cambrian said.
Chairman John Byrne said: "The significant opportunities presented by our
investment in Methanol Australia together with the progression of our Kyrgyz
projects offer the potential to transform the size of the company."
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