Focus on Gulf of Mexico

Gulf Coast Package - Timing Potential of the Eight Well Hilcorp Portfolio Comparison of SM 71 reserve base with Gulf Coast Package prospective resources 120 100 SM 71 80 Currently drilling Probability of Success % 40 40 60 60 88 20 20 Bivouac Peak Big Tex Lightning Mustang Don Julio 2 Beluga P10 ●P50 P90 Oil Lake Mallard Tarpon 0 For the Gulf Coast Package prospects, the size of bubble is proportional to the P90-P50-P10 Net Revenue Interest Prospective Resource (MMboe) For SM 71, the size of bubble is proportional to 30 June 2017 Net Revenue Interest 2P reserves (MMboe) For Bivouac Peak, the size of bubble is proportional to best estimate Net Revenue Interest Prospective Resource (MMboe) (Refer slide 15) OTTO ENERGY | ASX: OEL Anticipated Drilling Sequence Refer to the ASX announcement dated 31 July 2018 for further information on prospective resources disclosure. 8

View entire presentation