calculations, page-2

Two of the four wells are cased and pending production testing. This is a 50% rate of success. Source: http://www.naturalgasasia.com/leyshon-resources-to-buy-shale-assets-in-ordos-basin

The success rate is lower than neighboring leases and this is because it was a strategy to test the extensions of nearby major shale gas discoveries. When you are testing extensions you must hit dusters and then work back inwards. Therefore the failure rate is no reflection of the viability of the leases.