East Blina-1 Operations Report No. 5
East Blina-1 Operations Report No. 5
Perth, Oct 31, 2012 AEST (ABN Newswire) - Oil Basins Limited (ASX:OBL), as designated Operator on behalf of the Backreef Area Joint Venture (OBL net 80% and Green Rock Energy Limited (ASX:GRK) net 20% beneficial interests respectively), wishes to make the following Operations Report #5 concerning the East Blina-1 petroleum exploration well, within Production Licence L6, Canning Basin.

Wireline logging operations were completed late on 30 October 2012 and after analysis of the Schlumberger Quadcombo data by OBL's petrophysicist, it was determined that all zones were water wet and a MDT run was not warranted.

Plug and Abandonment operations have commenced and the Dynamic Drilling Rig#17 is expected to be released on 1 November 2012.

With the drilling of East Blina-1, the Backreef Play Agreement farmin commitments are now complete.

The drilling of the East Blina-1 exploration well has provided the following valuable information:

a) Firstly, preliminary analysis of the wireline logs has greatly increased the knowledge of the extent of the dolomitic reservoir interval (intra Yellow Drum reservoir) first encountered at Backreef-1.

b) Preliminary correlations of formation tops have confirmed that this porous and permeable zone within the Kimberley Downs Embayment extends from the western boundary of the Backreef Area to Backreef-1 in the east (some 3.7 km distant).

c) The Backreef Area Joint Venture has sufficient high quality stratigraphic data to enable, with further future 2D seismic, a mapping of this zone to establish future drill targets elsewhere in the Backreef Area.

d) OBL has demonstrated that, with deployment of a 'small footprint' modern mobile drilling rig, future oil exploration wells targeting Laurel / Yellow Drum reservoirs within the Backreef Area can be drilled at a reasonable cost.

e) This has potentially significant implications for future exploration in the Canning Basin where the Laurel is present.

About Oil Basins Limited

Oil Basins Limited (ASX:OBL) is engaged in the investment in selected exploration production and development opportunities in the upstream oil and gas sector. Oil Basins Limited was listed on the ASX on 23 August 2006 and is involved in exploration for oil and gas initially in the offshore Gippsland Basin waters of south-eastern Australia and the onshore Canning Basin of Western Australia. Since listing the Company has increased its leverage across all of its assets and has increased its exposure to attractive and prospective areas with the Canning Basin.



Oil Basins Limited
T: +61-3-9692-7222
F: +61-3-9529-8057
WWW: www.oilbasins.com.au

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