要点

古巴
9 号区块 PSC（Melbana 30% 参与权益和运营商）
- Alameda-3 井 TD 达到 3880mMD。在 Alameda 和 Marti 油藏采集的岩心和高质量测井曲线表明存在显著的压裂程度。
- 在 Marti 油藏进行的 DST 无法回收钻柱流体。在钻柱上观察到的油和高地层压力表明结构深处存在油，这与 Alameda-1 的发现一致。
- 在 Alameda 油藏进行的 DST，穿孔后表面有显著的压力响应。与更深的 Marti 油藏的结果一致，在流动测试期间无法回收钻柱流体。
- Alameda-3 井暂停，同时进行研究，试图解释这些结果与之前在这些油藏中发现的 Alameda-1 最小偏移量油显示有关。
- 本季度，油田开发规划和与潜在农场主和石油贸易商的谈判继续取得进展。

- 对 Amistad 构造中 1A 单元资源的独立估计：

石油储量（100% 份额，最佳估计）
预期资源量 7.11 亿桶

资源量（100% 份额，最佳估计）*
预期资源量 3200 万桶

- 发现概率 70%

澳大利亚
- 已授予 WA-488-P（Melbana 或有现金/特许权使用费权益）的环境许可证，勘探成功可能证明 WA-544-P 和 NT/P87 中的勘探类型。

公司
- 本季度末有 1240 万美元现金可用。

*或有和预期资源警告声明 - 估计可能通过应用与已发现和未发现的储量相关的未来开发项目回收的石油量。这些估计既有发现风险，也有开发风险。需要进行未来的勘探评估和评价，以确定是否存在大量潜在的可移动碳氢化合物。所有引用的内容均取自独立专家 McDaniel & Associates 于 2024 年 3 月 20 日发布的《合格人员报告》。Melbana 并未发现任何对该公告中包含的信息产生重大影响的新信息或数据，并且公告中估计的所有重要假设和技术参数继续适用且没有发生重大变化。

Melbana Energy Limited（Melbana 或公司）就其截至 2024 年 6 月 30 日的季度活动提供了以下摘要。

古巴

第 9 区块 PSC（Melbana 30%，运营商）

Alameda-3 评估井作业
Alameda-3 评估井在本季度钻探至 TD 3880mMD。由于钻井作业问题，该井被严重延迟：由于井眼稳定性问题，该井在 2908m 处侧钻，并且充气式外部套管封隔器 (ECP) 运行工具在 7 英寸衬管段（TD 3642m）卡住了相当长一段时间。

专业铣削和打捞工具和人员成功打捞出鱼，随后的套管完整性记录和压力测试证实了 7 英寸衬管的完整性。

对 Alameda 和 Marti 储层部分进行了包括 FMI 在内的电缆测井，结果表明 Alameda 部分储层为天然高裂缝储层，常规（不依赖裂缝）储层厚度超过 100 米。

对 Marti 和 Alameda 储层进行了流动测试。Marti 储层通过 4 ½ 开槽衬管在 3642-3880mMD 区间进行测试，封隔器设置在 3531mMD。Alameda 储层通过 3272mMD 和 3450mMD 之间的套管穿孔进行测试（见图 1）。

测试的目的是确定油藏的质量和流量，这些油藏被有效封盖岩隔开（见图 2），以便更广泛地了解油藏的生产特性。

两个油藏都作为地质剖面的一部分的单个区域进行测试，根据常规测井分析和 FMI 的解释，该区域包含最高的孔隙度和生产率区间（见图 3 和图 4）。

在两次测试中，地面都有高压的积极迹象。在 Alameda 测试中，在射孔枪发射后，地面上就有压力的积极迹象，这证实射孔成功，然后压力迅速升至 3034 PSI。

打开不同尺寸的节流阀测试仪表，并进行关闭期以建立压力。然而，重新打开后地面的回报很少，并且未能完全从测试管柱中清除钻井泥浆和井下流体，石油没有流到地面。

尽管在 Marti 或 Alameda 油藏中均未采集到未受污染的油样，但在 Marti 油藏中通过 DST 管柱的反向循环回收了油样，经分析发现其 API 为 19，含硫量为 2.3%。

由于两个区间的电缆和 FMI 均表明 Marti 油藏区间存在大量裂缝（图 3），而 Alameda 油藏区间存在优质常规（即不依赖裂缝）油层（图 4），因此油井无法流动与之前的观察和预期不符。

公司正在研究结果、所有可用数据和类似油井，如果认为该问题最有可能是由于可处理的地层损害机制造成的，则这些数据可能有助于制定潜在的未来补救计划。公司正在借鉴国际和当地专家的知识，以确保吸取重要的经验教训，以纳入未来的活动。为了

降低成本，油井被暂停，DST 管柱被移除，压力表被取出，钻机被从现场撤离。

这些结果不会影响基于 Amistad 1B 单元的初始油田开发计划，该单元有望于今年从 9 号区块产出第一批石油。Amistad

油田开发规划
Melbana 正在制定补救策略，旨在恢复 Alameda-2 1B 单元生产井在原始 DST 期间观察到的较高流量，此前该井被关闭并长期关闭。

从该单元回收的流体的实验室分析、油藏建模以及古巴成功修复过去表现类似的油藏的经验，都是选择首选策略的有用输入。

基于 Amistad 油田相对较浅的 1B 单元的初始油田开发计划在本季度在古巴举行的一系列研讨会和实地考察中向公司的合作伙伴和古巴监管机构进行了介绍。

初始油田开发计划（见图 5）是通过在现有的 2D 地震线上钻探简单、低成本的井，迅速使 Alameda 油田投入生产。这也将继续评估、降低风险并升级公司独立储量和资源认证机构估计的或有和预期资源。

拟议的分阶段开发计划是，在现有二维地震的基础上开发新的 1B 单元生产井，以开发 1C 资源（1600 万桶1），同时获取三维地震，以更准确地定位后续开发井，从而更有效地开发整个可采储量。

目标仍然是在 2024 年底之前实现首次石油出口。

专业实验室已收到 1B 单元石油的完整分析结果，结果证实，来自 Amistad 片区的 1B 单元石油适合炼制，API 重力为 19.8°，含硫量为 2.7%。

与潜在石油买家举行了会议，他们表示，原油在 65° 至 350°C 的馏程范围内具有较高的高价值成分，这与汽油、喷气燃料/煤油和柴油的生产大致相对应。这一范围内的成分约为 40%，而类似 API 的原油通常不到 30%。

分析结果表明，这种原油适合专门生产此类原油的炼油厂。Melbana 的工程团队继续优化其第 9 区块石油的交付计划。目前计划在现场对初始生产进行脱水，并通过卡车运送到距离第 9 区块不远的马坦萨斯超级油轮港，在那里将其存储在专用油罐中等待出口。

Amistad 1A 单元油藏资源认证
本季度，McDaniel & Associates（McDaniel）对 1A 单元进行了独立评估 - 1A 单元是 Alameda-2 评估井钻探过程中在上层遇到的四个浅层含油单元（统称为 Amistad）之一。McDaniel

资源更新仅涉及 1A 单元油藏，该油藏的石油比质量更好且更容易开采的 1B 单元油藏石油更重。McDaniel

为 1A 单元提供了一个预期资源类别（但发现机会为 70%），同样可以通过在该地区钻探额外的评估井和进行泵测试来降低风险。1A

单元和 1B 单元的总资源总结在下表 12 中，有关 McDaniel 对 1A 单元和 1B 单元的评估的更多详细信息分别列于附录 A 和附录 B 中。

澳大利亚

NT/P87 和 WA-544-P 的 Hudson 勘探区（Melbana 100%）
Melbana 持有 WA-544-P 和 NT-P87 勘探许可证的 100%，其中包含与相邻的 WA-488-P 勘探许可证类似的碳酸盐平台机会和类似的资源潜力，后者包含 Beehive 钻探前景（见图 6）。Beehive

在本季度获得了钻探环境批准，旨在测试一个可能包含多达 14 亿桶石油（预期资源，高估值）的大型碳酸盐平台机会。

该公司于 2021 年底以 750 万美元的价格出售了 WA-488-P，外加未来 500 万美元的或有现金支付和每生产 25 百万桶油当量 1000 万美元的特许权使用费。Melbana

正在寻求农场主为许可证中的前瞻性工作计划（3D 地震勘测和或有钻探选项）提供资金。

健康与安全
报告期内未发生任何工时损失事故。

向关联方及其关联方支付的款项总计 136,000 美元，如随附附录 5B 第 6 节所述，与支付董事费有关。

截至 2024 年 6 月 30 日，公司手头的现金总额为 1240 万美元。

HIGHLIGHTS

Cuba
Block 9 PSC (Melbana 30% participating interest and Operator)
- Alameda-3 well TD reached at 3880mMD. Cores and high quality well logs acquired in Alameda and Marti reservoirs indicated a significant level of fracturing.
- DST performed in Marti reservoir unable to recover drill string fluids. Oil observed on the drill string and high formation pressure demonstrated the presence of oil very deep in the structure, consistent with findings from Alameda-1.
- DST performed in Alameda reservoir, significant pressure response at surface upon perforation. Consistent with results from the deeper Marti reservoir, drill string fluids were unable to be recovered during flow testing.
- Alameda-3 well suspended whilst studies conducted that seek to explain these results relative to strong oil shows previously encountered in these reservoirs by the minimally offset Alameda-1.
- Field development planning and negotiations with potential farminees and oil traders continued to advance during the quarter.

- Independent estimate of Unit 1A resources in the Amistad structure:

OIL IN PLACE (100% share, best estimate)
Prospective Resources 711 million barrels

RESOURCES (100% share, best estimate)*
Prospective Resources 32 million barrels

• 70% Chance of Discovery

Australia
- Environmental permit granted for WA-488-P (Melbana contingent cash/royalty interest), exploration success in which could prove up the exploration play type in WA-544-P and NT/P87.

Corporate
- $12.4 million cash available at the end of the quarter.

* Contingent and Prospective Resources Cautionary Statement - The estimated quantities of petroleum that may potentially be recovered by the application of a future development project(s) related to discovered and undiscovered accumulations. These estimates have both an associated risk of discovery and a risk of development. Future exploration appraisal and evaluation is required to determine the existence of a significant quantity of potentially moveable hydrocarbons. All quoted volumes have been taken from independent expert McDaniel & Associates Competent Persons Report dated 20 March 2024. Melbana is not aware of any new information or data that materially affects the information included in that announcement and that all the material assumptions and technical parameters underpinning the estimates in the announcement continue to apply and have not materially changed.

Melbana Energy Limited (Melbana or the Company) provides the following summary in relation to its activities during the quarter ended 30 June 2024.

CUBA

Block 9 PSC (Melbana 30%, Operator)

Alameda-3 appraisal well operations
The Alameda-3 appraisal well was drilled to TD of 3880mMD during the quarter. The well was significantly delayed due to drilling operations issues: The well was side tracked at 2908m due to hole stability issues and an inflatable external casing packer (ECP) running tool was stuck for some considerable time in the 7” liner section (TD 3642m).

Specialist milling and fishing tools and personnel successfully retrieved the fish and subsequent casing integrity logs and pressure testing confirmed the integrity of the 7” liner.

Wireline logging, including FMI, of both the Alameda and Marti reservoir sections were undertaken, indicating a naturally highly fractured reservoir and over 100m of conventional (not fracture dependent) pay in the Alameda section.

Flow testing was undertaken on both the Marti and Alameda reservoirs. The Marti reservoir was tested via a 4 ½ “ slotted liner over the interval 3642-3880mMD with a packer set at 3531mMD. The Alameda reservoir was tested via perforation of the casing between 3272mMD and 3450mMD (see Figure 1).

The objective of the testing was to determine oil quality and flow rates for the reservoirs, which are separated by effective seal rocks (see Figure 2) to gain a broader understanding of the reservoirs’ production characteristics.

Both reservoirs were tested as single zones in a part of the geological section interpreted to contain the highest porosity and productivity interval, as indicated by conventional log analysis and FMI (see Figure 3 and Figure 4).

In both tests, there were positive indications of high pressure at surface. In the case of the Alameda test, immediately upon firing the perforation guns, there was positive indication of pressure at surface, which confirmed the perforations had been successful and pressure then quickly built to 3034 PSI.

Test gauges were opened on variable choke sizes and shut in periods were performed to build pressure. However minimal returns were achieved at surface after reopening and the complete removal of drilling mud and downhole fluids from the test string were not achieved and oil did not flow to surface.

Although no uncontaminated oil samples were obtained in either the Marti or Alameda reservoirs, oil samples were recovered on reverse circulation of the DST string in the Marti reservoir and have been analysed to have API of 19 with 2.3% Sulphur.

The inability of the well to flow does not fit with previous observations and expectations, given wireline and FMI over both intervals indicated substantial fracturing in the Marti reservoir interval (Figure 3) and good quality conventional (i.e. not fracture dependent) pay in the Alameda reservoir interval (Figure 4).

The Company is studying the results, all available data and analogous wells, which could be contribute to a potential future remediation plan, if the issue is considered most likely due to a treatable formation damage mechanism. International and local expert knowledge is being drawn upon to ensure critical lessons learned are captured for incorporation in future activities.

The well was suspended, DST string removed, and pressure gauges extracted, and the rig demobilised from site to reduce costs.

The results do not impact initial field development plan based on Amistad Unit 1B which is on track to deliver first oil from Block 9 this calendar year.

Amistad field development planning
Melbana is developing remediation strategies that are aimed at restoring the higher flow rates observed in the Alameda-2 Unit 1B production well during the original DST prior to it being killed and shut in for an extended period.

Laboratory analysis of the fluids recovered from this unit, reservoir modelling and Cuban experience of successfully remediating reservoirs that have behaved similarly in the past have been useful inputs to the selection of the preferred strategy.

The initial field development plan, based on the relatively shallow Unit 1B of the Amistad sheet, was presented to the Company’s partner then to the Cuban regulator in a series of workshops and field trips held in Cuba during the quarter.

The initial field development plan (see Figure 5) is to rapidly bring the Alameda field to production by drilling simple, low-cost wells on existing 2D seismic lines. This would also continue to appraise, derisk and upgrade the contingent and prospective resources estimated by the Company’s independent reserves and resources certifier.

The proposed phased development plan is for new Unit 1B production wells based on existing 2D seismic to develop the 1C resource (16 million barrels1 ) whilst acquiring 3D seismic to locate subsequent development wells more accurately to develop the entire recoverable volume more efficiently.

The goal remains to achieve the first export of oil before the end of 2024.

A complete assay of Unit 1B oil was received from specialist laboratories, which has confirmed that Unit 1B oil from the Amistad sheet is suitable for refining and has API gravity of 19.8° and sulphur content of 2.7%.

Meetings were held with potential oil purchasers who indicated that the crude has a relatively high share of the higher value components in the distillation range of 65° to 350°C, which broadly corresponds with the production of gasoline, jet/kerosene and diesel. The share in this range is ~40% compared with <30% typical for crudes of similar API.

The assay results indicate that the crude is marketable to refineries that specialise in such crudes. Melbana’s engineering team continue to optimise their plans for the delivery of oil produced in Block 9. Initial production is now planned to be de-watered in the field and delivered by truck to the Matanzas Supertanker port, located a short distance from Block 9, where it will be stored in a dedicated tank awaiting export.

Amistad Unit 1 A reservoir resources certification
During the quarter, McDaniel & Associates (McDaniel) provided their independent assessment of Unit 1A - one of four shallow oil-bearing units (collectively referred to as Amistad) encountered in the Upper Sheet whilst drilling the Alameda-2 appraisal well.

The McDaniel resource update only concerns the Unit 1A reservoir containing heavier oil than the better quality and more easily exploited Unit 1B reservoir oil.

McDaniel provided a Prospective Resource Category for Unit 1A (but with a Chance of Discovery of 70%) that could be similarly derisked by drilling an additional appraisal well and testing on pump in that area.

The total resources for the Unit 1A and Unit 1B are summarised in Table 12, below, with more details on McDaniel’s assessment of Unit 1A and Unit 1B presented in Appendix A and Appendix B respectively.

AUSTRALIA

Hudson Prospect in NT/P87 and WA-544-P (Melbana 100%)
Melbana holds 100% of WA-544-P & NT-P87 exploration permits containing similar Carbonate Platform opportunities with similar resource potential as the adjacent WA-488-P exploration permit, which contains the Beehive drilling prospect (see Figure 6).

Beehive received drilling environmental approval during the quarter and is aimed at testing a large Carbonate Platform opportunity that could contain up to 1.4 billion barrels of oil (Prospective Resource, high estimate).

The Company sold WA-488-P in late 2021 for US$7.5 million plus future contingent cash payments of US$5 million and royalties of US$10 million per each 25 mmboe produced.

Melbana is seeking farminee(s) to fund a forward work programme (3D seismic survey and contingent drilling option) in the permits.

HEALTH AND SAFETY
No lost time incidents occurred during the reporting period.

Payments to related parties and their associates, totalling $136,000 as outlined in Section 6 of the accompanying Appendix 5B, related to payment of directors’ fees.

The Company had total cash on hand of $12.4 million as at 30 June 2024.