Geologic setting of the North Falkland Basin
The North Falkland Basin (NFB) is a north-south trending Atlantic failed rift, filled primarily by early Cretaceous to Tertiary sediments. Rivers entering the basin from the north deposited sand that accumulated as a shoreface deposit, and redeposited from that shelf as a series of fans to be encased in the organic mud. Rockhopper identified the canyon feeder systems as originating from the eastern flank, with fans of many kilometres of areal extent coming from those feeders and Sea Lion close to the eastern margin.
The field was discovered in 2010 by Rockhopper’s first operated well in the basin (14/10-2) and was extensively appraised throughout 2010 and 2011 with nine wells over the Sea Lion structure. The campaign established the presence of c 400mmbbl recoverable oil (150mmbbl net to RKH) and 1.8tcf gas in Sea Lion and the other reservoirs in the complex (Casper, Casper South and Beverley). The 14/10-5 well demonstrated that the field could deliver commercial flow rates when it produced at a stable rate through an ESP at 5,508b/d (and a maximum rate of over 9,600b/d).
Exhibit 2: Growth of recoverable resources, Sea Lion complex
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Source: Rockhopper Exploration, Edison Investment Research. Note: Dark green bars represent independent audit estimates, light green provided by company and/or Premier Oil.
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Development concept, FEED and costs
The development concept has not changed markedly since our initiation report last year as the development definition was completed in late 2015. The field will be subject to a phased development.
Phase 1 will see approximately 220mmbbl extracted from the northern sections of the fields. A peak production plateau of 75mb/d is expected, with a field life of 15-20 years. Our modelling (following Premier’s guidance) is a three-year plateau of 70-75mb/d, declining thereafter with a total field life of 20 years.
FEED on Sea Lion started in January and contracts have been awarded to major service companies. The FPSO work is being completed by SBM Offshore, and this is expected to take 15-18 months. Elsewhere, Subsea 7 is reviewing subsea installation work, National Oilwell Varco (flexible flowlines) and One Subsea (subsea production system). Drilling and logistics still have to be finalised – tenders are expected by year end. Under the terms of the current deal, Premier will provide a development carry net to Rockhopper of $337m for Phase 1.
Work so far has reduced the expected capex to first oil from $1.8bn to $1.5bn, and total costs from above $45/bbl to around $35/bbl, giving an NPV10 break-even of around $45/bbl according to Premier. This may reduce further as FEED progresses and the service industry adapts to the lower oil price environment.
Exhibit 3: Gross production profile for Phases 1 to 3
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Source: Rockhopper Exploration, Edison Investment Research. Note: We assume a non-phased development for the Isobel Elaine complex given the material free cash flow that the previous phases are expected to generate by the time development spending is needed.
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The second phase will follow a number of years later (we model first oil four years after Phase 1 start-up), extracting a further 300mmbbl. The second FPSO is likely to have a similar production capacity as the first, although the combination of a slower decline and longer production life increases the reserves recovered.
Premier will provide a development carry to Rockhopper of $337m for Phase 2.
Exhibit 4: Development concept
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Source: Rockhopper Exploration
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Phase 3 – Isobel Elaine complex
Current estimates of Isobel Elaine complex suggest a very material reservoir of more than 500mmbbls, which has the potential to be very valuable if proved up. Unfortunately, the time to a potential first oil (of just under 15 years in our current modelling) means that its value on a discounted basis is diluted. However, we model this delay given the cash flow profile of the developments – should a third party (with deep pockets) enter the project, Isobel Elaine could be developed much sooner, boosting NPV materially.
The reservoirs discovered in the 2015 programme could make up a third leg to the development. Although the company is confident in the potential of the reservoirs at Isobel Elaine complex, operational issues during the drilling in the two wells means that insufficient information has been collected to properly prove up the reservoir size. As yet, reserve auditors have only been able to attribute 2C/3C contingent resources of 20/72mmbbl. This leaves a material prospective resource base to be further understood (2C/3C of 139/350mmbbl). Appraisal drilling will enable this numbers to be firmed up, and this is currently planned during the development drilling of Phase 1.
Financing and farm-down conundrum
As Rockhopper reported in the H116 financial report, “…whilst the spot price for Brent crude is around $50 per barrel today, Premier has confirmed that, given their financing position, any final investment decision on Sea Lion will be subject to the successful conclusion of a farm‐down process”. We see this as the result of two factors that have different solutions:
Issue: Premier’s current financial position has suffered from lower oil prices and its heavy capital investment programme on developments (Solan and Catcher). This has put pressure on its balance sheet, and it believes it will not return to a net debt/EBITDAX ratio of 3x until 2018 (current level of 5.2x). This implies that its ability to invest will be curtailed until then and a project sanction is therefore someway off. Additionally, due to the development carry, the IRR for PMO is lower than the project IRR (by around 3%). This means that, as operator, they will require a slightly higher oil price to sanction the project than RKH would need.
Solution: the current financial position and investment burden of Premier is a material barrier to the project being sanctioned (even with higher oil prices). If this investment burden can be lessened/removed by a deal/third party, the odds of project sanction increase markedly. Unfortunately, the capital invested so far ($231m initial cash consideration and significant appraisal and FEED costs incurred since adding to the $655m net to PMO at H116) plus the contractual development carry (due to RKH) may act as a hindrance to an agreement. Our analysis of recent industry deals suggests that a partner will require a relatively high IRR to enter the project and so it is possible (and in our view very likely) that both PMO and Rockhopper may have to sacrifice a portion of their project’s value to allow a development in a shorter timeline than seems possible with a PMO-led project. While this is relatively easy for Rockhopper (the development carry gives a 2017 go-forward IRR for Phase 1 of c 50% on our modelling using the strip), it is more difficult for Premier (which has a go-forward IRR of 19%).
Issue: despite costs falling, the lower oil price environment has put pressure on margins of the project. Although the tax and royalty regime in the Falklands leads to a relatively low government take overall and to strong incentives to develop within a higher oil price environment, it is also more levered to falling prices. In the absence of a sharply different oil price outlook, the current c 20% IRR of the project (as per PMO’s estimate) may not increase markedly and be enough to attract interested parties to invest. It would make sense for the partners to seek a rebalancing of fiscal terms if possible.
Solution: renegotiations of fiscal terms could be structured such that it is at least revenue neutral for the government, while providing better returns to the contractors for two reasons: (i) better terms could/should lead to a quicker FID and delivery of first oil sooner vs current terms; and (ii) the lower discount rate that the Falklands Islands government has (vs contractors) means that a lower initial take (on, say, royalties) could be more than balanced out by higher taxes later as oil prices recover. This has the potential to increase returns/incentives for the contractors, while being simultaneously revenue (NPV) neutral/positive for the Falklands Islands government, especially if first oil can be accelerated.
Exhibit 5: Brent prices (historic and forward curve)
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Exhibit 6: Project and partner IRR at various oil prices
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Source: Bloomberg, Edison Investment Research
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Source: Edison Investment Research
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Exhibit 5: Brent prices (historic and forward curve)
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Source: Bloomberg, Edison Investment Research
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Exhibit 6: Project and partner IRR at various oil prices
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Source: Edison Investment Research
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Based on forward curves (which have obvious issues with their reliability to accurately forecast pricing, but are useful for illustration), the EIA has performed an analysis of the probability that the oil price will reach or exceed various levels. This suggests that there is only a 25% chance of spot oil exceeding $60/bbl by 2018, although this rises to 35% for a $55/bbl oil price. Forward curves (along with most oil price forecasting) are notoriously unreliable indicators but, given the sensitivity of project returns to the oil price, the partners may be cautious about sanctioning Sea Lion until they have a strong sense that the price will be supportive of the project.