Central Petroleum Initiates Drilling of First Palm Valley Appraisal Well to Boost Gas Output

Palm Valley Well Spudding Marks Start of Central's Multi-Basin Drilling Campaign

Central Petroleum Limited has initiated operations on PV14, the first well in a two-well appraisal drilling programme at Palm Valley in the Northern Territory. Ensign Rig 974 spudded the well on 25 July 2026 at 23:00 hrs ACST, marking a key milestone in the company’s capital development strategy. These two lateral appraisal wells follow the successful designs of PV13 and PV12 wells, completed in 2022 and 2019 respectively. The drilling campaign is expected to take roughly four and a half months.

The timing of the spudding aligns with Central’s execution strategy after announcing a new Northern Territory Government Gas Supply Agreement in April 2026. The Palm Valley programme is central to the company’s portfolio growth, targeting restoration of plant sales capacity at the existing facility. Management remains on track to drill up to five wells across its portfolio this financial year, reflecting an active approach to appraisal and exploration. Managing Director and CEO Leon Devaney described the spudding as the beginning of a significant drilling phase across Central’s operations.

Production Goals and Gas Supply Agreement Support Palm Valley Investment

The two Palm Valley wells are designed to restore plant sales capacity to about 14 terajoules per day on a 100% joint venture basis. Over their operating lives, these wells are expected to deliver at least 10 petajoules of gas on the same basis. These production targets underpin the drilling campaign’s investment rationale and align with the Northern Territory Government’s new gas supply agreement. First gas sales from PV14 are planned for October 2026, marking the transition from drilling to production.

This investment is expected to increase Central’s share of total gas production capacity by roughly 40%, representing a substantial expansion of the company’s producing assets. The wells aim to optimize utilization of existing infrastructure and customer relationships that Central has built as the largest onshore gas operator in the Northern Territory. The production and capacity goals indicate management views these appraisal wells as addressing current production constraints at the facility.

Enterprise North Exploration Target in Established Victorian Gas Province

Beyond Palm Valley, Central is collaborating with ADX Energy Limited (ASX:ADX) as operator to advance an exploration well at Enterprise North in the onshore Otway Basin under permit PEP169. The Otway Basin is a proven hydrocarbon province with established production and infrastructure. Enterprise North is a significant gas target with potential for low-cost access to Victoria’s gas-short market, reflecting Central’s strategy to diversify beyond the Amadeus Basin and tap into markets with strong gas demand.

This exploration focus expands Central’s operational footprint and addresses a gas supply gap in Victoria. Management believes a commercial discovery here could be developed competitively due to proximity to existing demand. The partnership with ADX enables shared exploration risk, with Central participating without full operational responsibility. The company did not disclose contingent resource estimates, drilling timelines, or costs for Enterprise North.

Cooper Basin Two-Well Exploration Programme Targets Oil Reserves and New Growth Opportunities

Central is also advancing two exploration targets in South Australia’s Cooper Basin across permits PEL677 and other retention leases. This two-well exploration programme targets valuable oil reserves and represents a new growth frontier. Like the Otway Basin, the Cooper Basin is a proven hydrocarbon province with established infrastructure. This move into oil exploration complements Central’s gas operations and strategically broadens its portfolio.

The Cooper Basin programme demonstrates management’s confidence in the region’s prospectivity and Central’s operational capabilities across basins and commodities. Pursuing oil exploration alongside gas operations aims to diversify revenue and reduce commodity risk. Specific well locations, resource estimates, and drilling timelines were not disclosed. The programme’s description as opening a new growth frontier highlights its potential value creation for shareholders.

Central’s Status as Northern Territory’s Largest Onshore Gas Operator

Central Petroleum Limited is Australia’s largest onshore gas operator in the Northern Territory, supplying gas across central and northern Australia. The company operates established production infrastructure at Palm Valley and serves a broad customer base. This incumbency provides advantages for expanding production at existing facilities, as demonstrated by the PV14 and related appraisal wells. Central’s operational presence, regulatory relationships, and market access underpin its multi-basin expansion strategy.

Central’s leading position reflects extensive experience, regulatory compliance, and market development. This status supports securing supply agreements like the Northern Territory Government Gas Supply Agreement announced in April 2026. Central’s portfolio spans exploration, appraisal, and development projects across the Amadeus Basin, Cooper Basin, and onshore Otway Basin, positioning it as a multi-basin operator in eastern Australia’s established hydrocarbon provinces.

Management Highlights Disciplined Execution and Shareholder Value Focus

Managing Director and CEO Leon Devaney stated that the Palm Valley drilling commencement marks the start of a critical appraisal and exploration phase across Central’s portfolio. Following the gas supply agreement and expansion into high-potential permits beyond the Amadeus Basin, Central is advancing decisively. The company targets drilling up to five wells this financial year, each with compelling risk-return profiles. Devaney emphasized safe, disciplined delivery as a priority, focusing on operational excellence alongside project execution.

Devaney’s remarks underscore an active project execution phase across multiple basins and well types. The emphasis on safety and discipline reflects commitment to operational standards and risk management amid accelerated drilling. The confidence in each well’s risk-return potential highlights management’s belief in the portfolio’s commercial viability. Devaney also pledged to keep shareholders informed on project progress. The company did not disclose total drilling expenditure, funding sources, or expected production increases from the five-well programme.

Multi-Commodity and Multi-Basin Diversification Strategy

Central’s strategy involves deliberate diversification across commodities and basins. It is advancing gas appraisal and expansion at Palm Valley, gas exploration at Enterprise North in the Otway Basin, and oil exploration in the Cooper Basin. This multi-commodity, multi-basin approach reduces concentration risk in assets, basins, and markets. The Northern Territory Gas Supply Agreement provides a revenue base for gas production growth, while exploration in Victoria and South Australia offers longer-term opportunities. This portfolio approach supports value creation across varied development timelines.

The diversification also spans project risk profiles: Palm Valley involves appraisal of a producing asset, while Enterprise North and Cooper Basin represent higher-risk exploration with higher reward potential. This balanced portfolio allows capital deployment across different risk-return and development stages. The planned drilling of up to five wells demonstrates active capital allocation. Management’s view of compelling risk-return potential across wells indicates confidence in overall portfolio quality and value creation prospects.

Regulatory Environment and Importance of Northern Territory Gas Supply Agreement

The Northern Territory Government Gas Supply Agreement, announced in April 2026, provides regulatory and commercial support for the Palm Valley appraisal programme. This agreement reflects the government’s commitment to developing gas supply in the territory, ensuring regulatory stability for production and export. It underpins the investment case for the Palm Valley wells and offers market confidence for anticipated production from PV14 and its companion well.

The agreement represents a significant regulatory milestone, typically providing production certainty and market access that lower commercial risk. Its role in the Palm Valley programme suggests the wells were contingent on securing this agreement, which removed a key development barrier. Specific terms, duration, pricing, or volume commitments were not disclosed. Central attributes strategic importance to the agreement, indicating it materially improves the Palm Valley investment’s risk-return profile.

Operational Risks and Drilling Programme Execution Challenges

Although PV14 drilling has started with first gas sales targeted for October 2026, successful well delivery is subject to operational risks. Remote drilling faces technical challenges, weather delays, supply chain issues, and subsurface uncertainties that can impact costs and timelines. Past experience with PV13 and PV12 informs design and execution, but each well presents unique challenges. The estimated four-and-a-half-month duration is management’s current expectation but may vary due to unforeseen factors.

Central’s goal to drill up to five wells this financial year across basins and well types introduces risks related to rig availability, personnel, and capital coordination. Concurrent operations in Palm Valley, Otway Basin, and Cooper Basin require complex management. Delays or failures in any programme could affect overall delivery. The company’s focus on safe, disciplined execution acknowledges these risks, though no contingency plans or alternative timelines were disclosed. Investors should monitor updates on drilling, completion, and production to evaluate execution progress.