Cronx and Elgood

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Cronx & Elgood

48/22a (P1737) (Map: Wood Mackenzie PathFinder/IOG)

The Cronx licence to the west of Blythe has been acquired by IOG at 100% Working Interest (subject to completion and DECC approval).

CPR Gas in Place estimates are:

GIIP (Bcf) P90 P50 P10
Cronx Discovery 10.9 24.9 56.3

(Source: ERC Equipoise CPR – July 2012)

CPR economically recoverable resources are estimated at:

Resources (Bcf) 1 C 2C 3C
Cronx Discovery 7.7 17.6 40.4

(Source: ERC Equipoise CPR – July 2012)

In addition to the gas reserves there is an estimated condensate yield of approximately 24.5 Bbls/MMcf in the Cronx gas.

IOG estimates the gas in place in the Elgood discovery is as follows:

Discovery Reservoir Min GIIP (bcf) ML GIIP (bcf) Max GIIP (bcf)
Elgood Leman 6 14 18
Elgood Hauptdolomit 1 5 12
Total   7 19 30

(Source: IOG 28th Licensing Round Submission)

IOG estimates the recoverable gas resources in the Elgood discovery is as follows:

Discovery Reservoir Min  Resource (bcf) ML  Resource (bcf) Max  Resource (bcf)
Elgood Leman 4 11 14
Elgood Hauptdolomit 1 4 10
Total   5 15 24

(Source: IOG 28th Licensing Round Submission)

The Cronx gas discovery is 14km north-west of the Blythe field.  Cronx was discovered in 2007 by well 48/22b-6 drilled by Perenco UK Ltd. Cronx is most likely to be developed in conjunction with the Elgood discovery with export being either via Blythe or directly into nearby infrastructure.

The Elgood Field was discovered in 1991 by well 48/22-4, drilled by Enterprise Oil. It is a good quality Rotliegend Leman sandstone reservoir that tested gas at rates in excess of 17 MMscfd.  Gas was also tested from the Hauptdolomit interval 700 feet above the Leman interval but at low rates without stimulation.

IOG anticipates drilling a pilot well into Cronx in 2016-17, subject to rig availability, the necessary permit and funding, which IOG currently estimates to be £8m. IOG expects the well to confirm the recoverable resources, which IOG believes has the potential to be larger than the 17.6 BCF base case in the CPR. The well would be reused and extended into a producing well as part of the field development.