Vintage Energy Announces Material Gas Resource Booked for Odin Field

Source: 9/16/2021, Location: Not categorized

- Outstanding result with ~190% increase in Odin Field 2C Contingent Resources booking when compared to pre-drill 2U Prospective Resources

- Gross 2C Contingent Resources of 36.4 Bcf (16.0 Bcf net working interest) independently certified

- Potential gas production could be tied-in to proposed Vali to Beckler pipeline1

- Information recently provided to ERCE for review of Vali Field reserves

Vintage Energy Ltd (VEN, “Vintage”) is pleased to announce the results of the independent certification of contingent resources for the Odin Field in the Cooper Basin.

Vintage Managing Director, Neil Gibbins said, “The material booking of contingent resources for the Odin gas field, an increase of almost 190% on the pre-drill prospective resources, is an outstanding result. The Odin and Vali gas fields combined constitute a sizeable and potentially scaleable Cooper Basin gas province that we believe will supply significant quantities of gas to the east coast of Australia for at least the next twenty years.

The impact of the increased scale of the Odin Field is a material change to Vintage, its shareholders, and Joint Venture partners. The surging demand for gas on Australia’s eastern seaboard is reflected in higher pricing on the spot market, with increased demand for gas globally reflected in rising LNG pricing.

We were confident that Odin would over deliver once extensive gas shows through a number of target zones were observed, but to have this confirmed and independently certified by ERCE is a massive boost for all concerned. We have also recently sent updated information from the recent Vali-2 and Vali-3 drilling campaign to ERCE to update their review of reserves for the Vali Field. As well as all this, we are well advanced with our discussions with third parties regarding pre-sales of Vali Field gas and pipeline infrastructure finance.

I believe that the oil and gas sector has been heavily discounted for some time now. As the world transitions toward carbon neutrality, natural gas has an important role to play in reducing emissions through delivering cleaner energy to homes and businesses. To this end we are excited and ready to play our part in this transition in the years to come.”

Cooper Basin – PRL 211 (Vintage 42.5% and operator, Metgasco Ltd 21.25%, Bridgeport (Cooper Basin) Pty Ltd 21.25%, Impress (Cooper Basin) Pty Ltd 15%) and ATP 2021 (Vintage 50% and operator, Metgasco Ltd 25%, Bridgeport (Cooper Basin) Pty Ltd 25%

The Odin-1 exploration well was drilled with the Schlumberger SLR184 rig and reached total depth at 3,140 metres on 26 May 2021. Extensive gas shows were encountered in sandstones through the primary target Toolachee and Patchawarra formations, as well as a basal sand in the Epsilon Formation. These shows were confirmed as gas pay via the wireline evaluation program, with gas samples successfully recovered from the Toolachee and Epsilon formations.

The well was subsequently cased as a gas discovery for flow testing and future production, with first production likely to be targeted from the Toolachee Formation, which, due to better reservoir quality, is expected to only require perforation in order to produce. The flow on effect of this is a deferral of capital expenditure that would have been incurred had the Patchawarra Formation initially been fracture stimulated for flow testing and production. Ultimately the well design will encompass flow from both the Toolachee and Patchawarra formations. The presence of gas in the Toolachee, Epsilon and Patchawarra formations, along with success in the Vali Field, clearly indicate that hydrocarbon bearing zones are still discoverable in areas in the Cooper Basin that have previously been lightly worked over by other companies. This is a demonstration of the ongoing technical success that the Vintage team is having in terms of mapping, identifying, and drilling successful gas wells.

Odin-1 addressed a structural closure, up dip of Strathmount-1, a well drilled in 1987 and plugged and abandoned after discovering what was then considered a non-commercial hydrocarbon accumulation. The Toolachee Formation at Odin has ~16 metres of structural relief over nearly 6.1 km2, and the Patchawarra Formation has ~23 metres of structural relief over nearly 5.1 km2.

ERC Equipoise Pte Ltd (“ERCE”) independently certified 36.4 billion cubic feet (“Bcf”) of gross 2C Contingent Resources in the Toolachee, Epsilon, Patchawarra and Tirrawarra formations of the Odin gas field located in both PRL 211 and ATP 2021 on the southern flank of the Nappamerri Trough in the Cooper Basin. While all these formations contributed to the certified gas volumes, the majority of the resource is based in the Toolachee and Patchawarra Formations.

The working interest of the Contingent Resources represent Vintage’s share of the Gross Contingent Resources based on its working interest in PRL 211, which is 42.5%, and ATP 2021, which is 50%. Accordingly, net 2C gas Contingent Resources of 16.0 Bcf have been certified by ERCE.

The Contingent Resources are sub-classified under the Project Maturity Sub-Class as described in the SPE Petroleum Resources Management System 2018 as “Development Unclarified” by ERCE and Vintage. The key contingencies are a final investment decision on development, committing to a Gas Sales Agreement and any other necessary commercial arrangements, plus obtaining the usual regulatory approvals for production.

1- Gross Contingent Resources represent 100% total of estimated recoverable volumes within PRL 211 and ATP 2021.

2- Working Interest Contingent Resources represent Vintage’s share of the Gross Contingent Resources based on its working interest in PRL 211, which is 42.5%, and ATP 2021, which is 50%.

3- These are unrisked Contingent Resources that have not been risked for Chance of Development and are sub-classified as Development Unclarified.

4- Contingent Resources volumes shown have had shrinkage applied to account for inerts removal and include hydrocarbon gas only.

5- No allowance for fuel and flare volumes has been made.

6- Resources estimates have been made and classified in accordance with the Petroleum Resources Management System 2018 (“PRMS”).

7- Probabilistic methods have been used for individual sands and totals for each reservoir interval have been summed deterministically.

8- Contingent Resources certified by ERCE are as at 14 September 2021.

Resources Evaluator
ERCE is an independent consultancy specialising in petroleum reservoir evaluation. Except for the provision of professional services on a fee basis, ERCE has no commercial arrangement with any other person or company involved in the interests that are the subject of this Contingent Resources evaluation.

The work has been supervised by Mr Adam Becis, Principal Reservoir Engineer of ERCE’s Asia Pacific office who has over 14 years of experience. He is a member of the Society of Petroleum Engineers and also a member of the Society of Petroleum Evaluation Engineers.

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