CBM exploitation sensitivities
GDG remains a differentiated E&P given its relative insensitivity to the oil price. Development and production costs remain low relative to peers (c $1.3m per completed LiFaBriC well; opex costs <$1/mcf life of field) and margins are high on a unit basis. Ten years of audited reserves growth help demonstrate resource quality and depth, partly de-risked by production and sales from GSS and GCZ. GDG also benefits from continued government support through energy policy subsidies. This includes the specific mention of CBM and GDG’s key assets, GSS and GCZ, in the Chinese government’s five-year plan. The plan states the intention to increase the natural gas share of the country’s energy mix from 6% to 13% by the end of the decade and to obtain 85% of energy from domestic sources. Inclusion of GSS and GCZ in the government’s five-year plan has the potential to open up access to domestic debt markets as state-owned banks provide liquidity to support the plan.
GDG’s last published reserves assessment report (RAR) remains on the basis of rapid exploitation of the company’s reserve base delivering a 1P net valuation of NPV10 $1,227m (based on a well-head gas price prior to subsidy of $10.37/mcf in 2016 increasing to $12.6/mcf by 2020). To realise this value, GDG needs to step up the pace of development drilling, infrastructure build-out and ultimately gas sales.
In the immediate term, we expect gas sales to benefit from the introduction of wellhead screw compression across existing LiFaBriC well stock. We believe this to be a prudent use of GDG’s funds given current capital constraints – maximising gas sales from existing well stock and closing the gap between production capacity and actual sales. Over the medium term, we believe gas sales growth will be driven by GDG’s ability to drill-out its wider reserve base and in this note we run sensitivities around the pace of LiFaBriC drilling.
Our GDG valuation explores three cases, which assume a range of funding and drilling assumptions:
1.
Minimal capex case: no additional wells drilled, capital expenditure on upstream compression and well connections.
2.
Base case: drilling activity aligned to RBL capacity and short-term funds.
3.
Accelerated drilling: drilling out of resource base funded by equity or asset farm-downs.
In our analysis, we present group cash flow and EBITDA profiles consistent with each scenario. However, it is important to note that, in line with GDG’s accounting policy, we assume revenues will be booked on a working interest basis rather than an entitlement basis (on completion of the ongoing audit of CNOOC-operated areas of blocks GSS and GSN). Due to a material proportion of existing production coming from legacy CNOOC wells, this is not fully reflected in GDG’s cash flow from operations post-CNOOC cost recovery, hence cash conversion is expected to remain low until CNOOC recovers legacy costs. The timing of CNOOC cost recovery varies from case to case, but is an important consideration for investors valuing GDG on the basis of free cash flow or NAV.
In this case, we assume GDG does not drill any new wells across its asset portfolio but addresses production optimisation opportunities. These include wellhead compression and connecting existing well-stock to gas pipeline infrastructure. As of December 2016, only 568 wells of a total of 2,037 wells were connected to infrastructure and selling gas. Under this scenario we forecast that net gas sales rise over the medium term, generating material net free cash flow; however, only 28% of the GSS 2P reserve base is monetised. In this case, we estimate that GDG will require $15-20m of additional funding in the short term to fund small capital items such as compression, together with G&A and debt commitments. Under this scenario, we see gross GSS sales gas exceeding 11bcf, generating material revenues and EBITDA net to GDG. Cash generation and cash conversion are low due to a large percentage of production generated by CNOOC legacy wells and related cost recovery. We expect CNOOC cost recovery in 2026 based on our forecasts. As can be seen in Exhibit 2 below, we see a drop in cash conversion in 2022 after GDG fully recovers its cost pool, and then a step up in 2026 once CNOOC has recovered legacy costs.
Exhibit 1: Growth in GSS gross sales gas and net cash generation post CNOOC cost recovery
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Exhibit 2: Group EBITDA and cash conversion
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Source: Edison Investment Research
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Source: Edison Investment Research
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Exhibit 1: Growth in GSS gross sales gas and net cash generation post CNOOC cost recovery
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Source: Edison Investment Research
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Exhibit 2: Group EBITDA and cash conversion
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Source: Edison Investment Research
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Our valuation in the minimal capex case for the GSS asset is $136m, assuming a well-head gas price (including subsidy) of $7.5/mcf in 2017 rising to $10.5/mcf by the end of the decade. This asset valuation helps underpin current net debt and G&A; however, for equity holders to realise material value from GDG’s CBM resource base, we believe a material investment in new GDG LiFaBriC wells is needed. This would ensure maximum 2P reserve recovery prior to the 2035 PSC expiry.
Exhibit 3: Case 1 – minimal capex case core valuation
Asset |
Country |
Diluted WI % |
CoS % |
Recoverable reserves/resources |
|
Net risked value |
Sensitivity to discount rate |
Gross |
Net |
NPV/mcf |
@12.5% DR |
£/share |
bcf |
bcf |
$/mcf |
$m |
£/share |
10.0% |
15.0% |
17.5% |
Net (debt)/cash June 2016 |
|
|
|
|
|
|
(119.6) |
(0.59) |
(0.59) |
(0.59) |
(0.59) |
SG&A |
|
|
|
|
|
|
(14.6) |
(0.07) |
(0.07) |
(0.07) |
(0.07) |
GSS 2P |
China |
60%* |
80% |
202.6 |
132.4 |
1.3 |
136.0 |
0.67 |
0.87 |
0.53 |
0.42 |
GCZ 2P |
China |
47% |
80% |
31.1 |
14.6 |
3.3 |
39.2 |
0.19 |
0.22 |
0.17 |
0.15 |
GSN 2P |
China |
50% |
80% |
36.0 |
18.0 |
0.0 |
0.0 |
0.00 |
0.00 |
0.00 |
0.00 |
Core NAV |
|
|
|
287.7 |
154.4 |
|
40.9 |
0.20 |
0.43 |
0.03 |
(0.09) |
Source: Edison Investment Research. Note: *Option to increase GSS WI to 70%.
Case 2: Base case valuation – driven by GSS RBL debt capacity
In our base case valuation, we assume GDG receives GSS ODP approval in 2017, opening up access to the RBL debt market. We assume attained RBL debt capacity is in addition to the company’s existing $50m convert (due 2020) and $88m corporate bond due November 2017 – for which we assume a maturity extension.
We feel that it is reasonable to assume that GDG will be able to access the RBL debt market for the producing GSS asset and its 47% interest in GCZ – the availability of RBL for Chinese CBM has been demonstrated by AAG Energy receiving a $250m RBL loan for development funding from a consortium of banks including HSBC, Bank of Communications, Standard Chartered Bank, Société Générale and Crédit Agricole in 2015. We see uncertainty around the exact timing of GSS ODP approval but note that there is precedent of Sino-foreign cooperative CBM projects being approved in China; the first such project was AGG’s Panzhuang CBM concession, which was approved for development in 2011, with AAG Energy and CUCBM each holding a 50% stake.
In order to calculate the RBL debt capacity of GDG’s GSS block, we make a number of assumptions in order to determine the borrowing base. Key assumptions are:
■
RBL pricing assumptions (8% discount rate, $7/mcf rising to $9.5/mcf by 2020 and then rising to LNG parity).
■
Based on 2P reserves profile but only including GSS and GCZ.
■
RBL available after ODP approval – assumed in 2017.
■
Borrowing base is re-determined annually.
■
Borrowing base is the minimum amount that satisfies the field life and loan life coverage ratios (we use conventional RBL coverage ratios).
After imposing a maximum drilling rate cap of 100 LiFaBriC wells per year in our analysis, our RBL funded drilling schedule for GSS is as outlined in Exhibit 4. Under this scenario, GDG recovers 100% of its GSS gross 2P reserve base of 788bcf. Our analysis suggests that GDG may require a capital injection in early 2017 in order to fund G&A and a limited LiFaBriC well programme ahead of ODP approval and RBL debt access.
Exhibit 4: Base case LiFaBriC drilling assumptions
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Exhibit 5: Base case funding requirements vs RBL debt capacity
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|
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Source: Edison Investment Research
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Source: Edison Investment Research
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Exhibit 4: Base case LiFaBriC drilling assumptions
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Source: Edison Investment Research
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Exhibit 5: Base case funding requirements vs RBL debt capacity
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Source: Edison Investment Research
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In our base case, we see gross GSS sales rising to 60bcf by 2024, with material cash flow (post cost recovery) net to GDG. Cash conversion rises rapidly from 2023, as GDG benefits from a larger LiFaBriC well-stock from which it receives its full 60% of net cash flow and CNOOC fully recovers legacy costs.
Exhibit 6: Growth in GSS gross sales gas and net cash generation post CNOOC cost recovery
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Exhibit 7: Group EBITDA and cash conversion
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|
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Source: Edison Investment Research
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Source: Edison Investment Research
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Exhibit 6: Growth in GSS gross sales gas and net cash generation post CNOOC cost recovery
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|
Source: Edison Investment Research
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Exhibit 7: Group EBITDA and cash conversion
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Source: Edison Investment Research
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Net cash flow increases rapidly (cash conversion moves towards 75%) once CNOOC has fully recovered its cost balance; we currently forecast that this will occur in 2023 in our base case.
Exhibit 8: Base case core valuation (assumes minimal GCZ/GSN activity with funds deployed on GSS)
Asset |
Country |
Diluted WI % |
CoS % |
Recoverable reserves/resources |
|
Net risked value |
Discount rate sensitivity |
Gross |
Net |
NPV/mcf |
@12.5% DR |
£/share |
bcf |
bcf |
$/mcf |
$m |
£/share |
10.0% |
15.0% |
17.5% |
Net (debt)/cash June 2016 |
|
|
|
|
|
|
(119.6) |
(0.59) |
(0.59) |
(0.59) |
(0.59) |
SG&A |
|
|
|
|
|
|
(14.6) |
(0.07) |
(0.07) |
(0.07) |
(0.07) |
GSS 2P |
China |
60%* |
80% |
788.1 |
472.9 |
1.5 |
556.1 |
2.74 |
3.64 |
2.08 |
1.59 |
GCZ 2P |
China |
47% |
80% |
31.1 |
14.6 |
3.3 |
39.2 |
0.19 |
0.22 |
0.17 |
0.15 |
GSN 2P |
China |
50% |
80% |
36.0 |
18.0 |
0.0 |
0.0 |
0.00 |
0.00 |
0.00 |
0.00 |
Core NAV |
|
|
|
855.2 |
505.5 |
|
461.0 |
2.27 |
3.20 |
1.59 |
1.08 |
Source: Edison Investment Research. Note: *Option to increase GSS WI to 70%.
Key assumptions that we make in our base valuation are as below:
■
GDG is able to drill LiFaBriC wells in line with RBL borrowing base at a cost of $1.3m gross per well.
■
GDG is able to refinance its existing corporate bond in 2017 on similar terms, bridging the gap to rising RBL borrowing capacity.
■
IP rates for new LiFaBriC wells average 250mcf/d with a 24m plateau and 10% decline rate.
■
GDG receives ODP approval for GSS/GCZ in 2017, providing RBL debt access. We assume RBL debt capacity is incremental to GDG’s convertible bond and senior secured Nordic bond.
■
We assume all available capital is deployed on GSS.
■
GDG receives a two-year licence extension for GSS to 2035 as per the 2014 framework agreement.
■
Life of field opex costs average $1/mcf.
■
Gas sales as a percentage of actual gross production (not production capacity) rise to 95%; gas sales to production capacity will be lower in percentage terms.
■
CNOOC/CUCBM retains cost recovery rights over legacy wells and infrastructure capex spend.
■
We define sales gas as working interest production volume after utilisation losses, which include gas lost to production, transmission, gathering, compression, power and processing processes.
As can be seen in the table above, our base case NPV12.5 valuation is 227p/share (net of liabilities). Our 12.5% cost of capital is based on the assumption that GDG utilises a combination of high-yield debt (current coupon 10% on convertible), RBL debt, equity and farm-out. We believe a 12.5% cost of capital is a reasonable assumption for through-cycle cost of capital, but we provide a sensitivity to discount rate in our valuation tables. GDG may be able to access lower-cost domestic debt now that GSS and GCZ are included in the government’s five-year plan and we intend to revise our cost of capital assumptions once GDG has secured additional funds.
Exhibit 9: Base case free cash flow (post-financing) and net cash evolution
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Exhibit 10: GSS gross gas sales and GSS RBL capacity
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|
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Source: Edison Investment Research
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Source: Edison Investment Research
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Exhibit 9: Base case free cash flow (post-financing) and net cash evolution
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Source: Edison Investment Research
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Exhibit 10: GSS gross gas sales and GSS RBL capacity
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Source: Edison Investment Research
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Case 3: Accelerated drilling/no funding constraints
Our valuation (net of liabilities) is highly levered to GDG’s ability to fund the drill-out of its reserve base. In our final scenario, we look at the sensitivity of core value (2P net of liabilities) to drilling intensity. Unsurprisingly, we see the greatest GDG group valuation when GSS gas recovery is maximised prior to 2035 licence expiry. We believe that GDG needs to drill 60-80 wells per year to maximise resource recovery in the 2P case, while close to 330 wells would need to be drilled per year to fully exploit GSS 3P reserves. At a cost of $1.3m per LiFaBriC well, this would amount to a gross cost of $78m to $104m per annum in the 2P case. Including risked recovery of 3P CBM reserves (higher well-density) this could rise to in excess of 435p/share RENAV. Finally, if we were to include an intensive drilling programme on GCZ and GSN, this has potential to rise to in excess of 591p/share RENAV.
Exhibit 11: Value sensitivity to GSS LiFaBriC wells/year and average IP rate
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Exhibit 12: Net GSS gas sales vs LiFaBriC wells/year
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|
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Source: Edison Investment Research
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Source: Edison Investment Research
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Exhibit 11: Value sensitivity to GSS LiFaBriC wells/year and average IP rate
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Source: Edison Investment Research
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Exhibit 12: Net GSS gas sales vs LiFaBriC wells/year
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Source: Edison Investment Research
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GDG’s ability to fund accelerated drilling activity will be key in maximising resource recovery and shareholder value. As shown in Exhibit 12, if drilling rates enable full recovery of GSS 2P reserves, valuation increases dramatically.
Exhibit 13: Growth in GSS gross sales gas and net cash generation post CNOOC cost recovery – 80 LiFaBriC wells/year
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Exhibit 14: Group EBITDA and cash conversion assuming 80 LiFaBriC wells/year
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|
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Source: Edison Investment Research
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Source: Edison Investment Research
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Exhibit 13: Growth in GSS gross sales gas and net cash generation post CNOOC cost recovery – 80 LiFaBriC wells/year
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Source: Edison Investment Research
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Exhibit 14: Group EBITDA and cash conversion assuming 80 LiFaBriC wells/year
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Source: Edison Investment Research
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Potential sources of funding include equity, corporate debt, RBL debt (post ODP approval), industry farm-ins and asset sales. In our base case, we assume that GDG accesses the RBL debt market post GSS ODP approval in 2017. Additional injections of capital, over and above our base case, have the potential to significantly increase this pace of drilling being NAV accretive.
Exhibit 15: RENAV assuming 80 LiFaBriC wells/year on GSS 2P in core NAV
Asset |
Country |
Diluted WI % |
CoS % |
Recoverable reserves/resources |
|
Net risked value |
Discount rate sensitivity |
Gross |
Net |
NPV/mcf |
@12.5% DR |
£/share |
bcf |
bcf |
$/mcf |
$m |
£/share |
10.0% |
15.0% |
17.5% |
Net (debt)/cash June 2016 |
|
|
|
|
|
|
(119.6) |
(0.59) |
(0.59) |
(0.59 |
(0.59) |
SG&A |
|
|
|
|
|
|
(14.6) |
(0.07) |
(0.07) |
(0.07) |
(0.07) |
GSS 2P |
China |
60%* |
80% |
787.9 |
472.8 |
1.5 |
548.9 |
2.71 |
3.60 |
2.05 |
1.57 |
GCZ 2P |
China |
47% |
80% |
31.1 |
14.6 |
3.3 |
39.2 |
0.19 |
0.22 |
0.17 |
0.15 |
GSN 2P |
China |
50% |
80% |
36.0 |
18.0 |
1.1 |
16.2 |
0.08 |
0.11 |
0.06 |
0.04 |
Core NAV |
|
|
|
855.1 |
505.4 |
|
470.1 |
2.32 |
3.27 |
1.62 |
1.10 |
GSN 3P drill-out |
China |
50% |
40% |
1402.4 |
701.2 |
1.1 |
315.9 |
1.56 |
2.23 |
1.09 |
0.76 |
GSS 3P drill-out |
China |
60% |
40% |
1504.3 |
902.6 |
1.2 |
421.7 |
2.08 |
2.93 |
1.49 |
1.08 |
RENAV |
|
|
|
3,761.8 |
2,109.2 |
|
1,207.7 |
5.95 |
8.44 |
4.19 |
2.93 |
Source: Edison Investment Research. Note: *Option to increase WI to 70%.
As well as exploitation of GDG’s reserve base, we see potential for the company to create incremental value for shareholders through the farm-down or sale of acreage that remains in the early stages of exploration/monetisation (blocks GFC, GQY, GPX, GGZ). We conservatively do not include these assets in our valuation at this point in time and crystallisation of value for these assets would be incremental to our RENAV. The timing of a farm-down or asset sale is of the essence as GDG looks to explore, appraise and monetise this resource base prior to 2035 licence expiry.