heron 1 reaches total de

Heron 1 (Block 20 Mauritania) Reaches Total Depth
Australian based oil and gas exploration company Baraka Petroleum Limited (ASX: BKP) has
been provided with an update by the operator and joint venture partner CNPC International
Mauritania Limited (CNPCIM) on the drilling of Heron-1 within Coastal Block 20 in Mauritania.
This updated advice is as follows:
The land-drilling rig ZJ50LDB operated by drilling operator GWDC (Great Wall Drilling Company)
has continued drilling the CNPCIM operated Heron-1 exploration well in coastal Block 20 onshore
Mauritania, West Africa (see Figure 1).
As at 2:00 pm (AWST) on the 12 February 2007, the operation was wire-line logging 8 1/2 inch
hole at a depth of 3900 metres. Formation penetrated was claystones with minor thin
sandstones and limestones down to the top of the Aptian limestones which was encountered at
3822m. Fluorescence has been observed in a thin sandstone in the upper part of the Aptian
formation from 3831 – 3834m. No other shows have been observed.
The criteria for reaching Total Depth (TD) previously agreed by the Joint Venture partners has
been met and therefore the decision was made to cease further drilling at a TD of 3900 metres.
The results of the current wire-line logging should be available within a week. Following wire-line
logging a 5 ½ inch tie-back liner will be set to T.D.
The results of Heron-1 and its implication for the prospectivity of Block 20 will be assessed by
the Joint Venture and a meeting will be held in early Quarter 2 2007 to agree the forward work
programme in the permit.
CNPCIM is a wholly owned subsidiary of CNPC International Limited (CNPCI) and is Operator of
Block 20 with 65% interest. Baraka Petroleum’s interest in Block 20 is 35%.
ENDS