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Roxi uncovers larger oil-bearing interval at Kazakhstan deep well A5

19th August 2014

Roxi Petroleum remains positive about its Kazakhstan operations as a larger oil-bearing interval is discovered at its flagship deep well in the BNG Contract Area, and continues successful operations at its shallower wells across the country

Roxi discovers larger oil-bearing interval at Kazakhstan deep well A5
Roxi now intends to determine the full extent of the oil-bearing interval by drilling and logging rather than taking additional core samples

Roxi has said that a third core sample of 18 metres has been successfully taken at a depth between 4,365 and 4,383 metres at well A5 of the BNG Contract Area, of which 1.6 meters was recovered.

This shows the aggregate thickness of the gross oil-bearing interval extends to at least 51 meters.

"At more than 51 metres the gross oil-bearing interval at BNG Well A5 now exceeds our initial expectations,” said Clive Carver, Roxi chairman. “We remain excited by the potential of the deep horizons at the BNG Contract Area and look forward to the results of the flow test."

Roxi now intends to determine the full extent of the oil-bearing interval by drilling and logging rather than taking additional core samples.  Once this has been completed, and after delivery of additional equipment, Roxi intends to put Well A5 on flow test.

Well A, is the first deep well on the BNG Contract Area, with a planned total depth of 4,700 metres.

On 5 August 2014 it was announced that oil and gas shows had been detected at a depth of 4,332 metres over the full 12 metres core taken.  On 11 August, following a second core sample, it was announced that the oil bearing interval was at least 33 meters.

The BNG Contract Area is located in the west of Kazakhstan, 40 kilometres southeast of Tengiz on the edge of the Mangistau Oblast, covering an area of 1,561 square kilometres of which 1,376 square kilometres has 3D seismic coverage acquired in 2009 and 2010.

Roxi has a 58.41 per cent interest in the BNG Contract Area.

BNG's shallow wells are located in the Yelemes portion of the BNG block. They extend over an area of 800 square kilometres and are focused on proving the extent of a number of promising horizons, in particular in the Cretaceous Valanginian.

Well 143, which was the first of the shallow wells for 2013, was spudded on 1 April 2013, on the MJ-F structure located towards the North of South Yelemes field at BNG. The well was drilled to a total depth of 2,750 metres. This exploration initially targeted Jurassic Callovian sands at a depth of 2,170 metres with a secondary objective in the Cretaceous Valanginian limestone at a depth of 1,935 metres.

The well is now being swabbed before testing commences on the intervals of interest.

Should Well 143 test positively Roxi believes it could significantly extend the horizon already being produced from by Wells 805 and 54.

Roxi has also provided an update to progress at Well NK-31 on its Galaz Contract Area.

The Galaz block is located in the Kyzylorda Oblast in central Kazakhstan. The contract area was extended on 10 January 2011 to 179 square kilometres and now includes significant exploration upside on the east side of the Karatau fault system, as well as the NW Konys development.

The operator is LGI, the Korean multi-national, which invested USD 34.4m by way of loans into the project and paid a further USD 15.6m in return for 40 per cent of the asset. A total of 30 square kilometres 3D seismic has been acquired and processed.

Roxi has a 34.44 per cent interest in the Galaz Contract Area.

Well NK-31, which is targeting the Middle Jurassic on the main contract area, has now been drilled to a total depth of 2,642 metres and casing has been set to its full length.

As previously announced core samples taken between 2,070 and 2,079 metres in the Karagansaisky horizon contain an interlayering of argillite and conglomerates.

Also as previously announced high gas shows were detected when drilling at the depth of 2,283 metres (Doshan Suite). Core samples were taken between 2,283 and 2,292 metres and preliminary, analysis showed the core consists of sandstones.

Work is now under way preparing the well for logging to determine which intervals to perforate for further testing.

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