UKOG: UPGRADE OF HORSE HILL PORTLAND RESOURCES

February 08, 2017

UK Oil & Gas Investments PLC (UKOG) announces that a new Report by Xodus calculates the Horse Hill Portland sandstone conventional oil accumulation, in which the Company holds a 31.2% interest, to contain an OIP of 32 million barrels of oil (MMbbl), an increase of 53% from the previously reported 21 MMbbl of May 2015. The upgrade results from the incorporation of Nutech’s revised petrophysics, as reported in July 2016. As previously stated by the Company, OIP should not be misconstrued as recoverable Contingent Resources or reserves, which are detailed below.
In March 2016 UKOG reported the final Horse Hill-1 (“HH-1”) Portland test flowed at a stable dry oil rate of 323 bopd, producing light, sweet, 35 API gravity crude. The Portland was produced at the rod-pump’s maximum achievable rate and thus flow was constrained by the pump’s mechanical capacity. The test data analyses show no clear indication of depletion.
As a result of further analysis of the Portland flow test data, plus a review of similar producing fields, Xodus now assess the gross recoverable Portland 2C Contingent resources at 1.5 MMbbl. As a result, Company net attributable Portland 2C resources are assessed at 0.5 MMbbl. Calculated OIP and resources reflect oil contained in the entire Portland structure, as penetrated by the HH-1 and Collendean Farm -1 wells.
The Contingent Resource volumes given are those estimated to be attributable to primary recovery from the Portland reservoir. Results utilise a base case of three wells, draining both the Horse Hill and Collendean Farm fault blocks, each well with an initial production rate of 350 bopd. (Source: UKOG)