Carnarvon Energy has boosted its Bedout Basin prospective resources by 92%, now holding over 6.2 billion barrels of oil equivalent across 130 prospects, with exploration drilling set to start in April 2027.
- 92% increase in gross unrisked prospective resources to 6.256 billion boe
- Drilling campaign secured with Transocean Equinox rig from April 2027
- Four key prospects shortlisted: Ara, Yuma, Hutton, Goats Eye
- Ara prospect leads firm well targeting new northern basin play fairway
- Bedout Basin positioned as potential major Australian petroleum province
Resource Upgrade Reflects Seismic Data Breakthrough
Carnarvon Energy Limited (ASX:CVN) has reported a seismic-driven leap in its Bedout Basin prospective resources, nearly doubling its inventory to 6.256 billion barrels of oil equivalent (boe) on a gross, unrisked Pmean basis. This 92% uplift since June 2025 stems from the completion of the Bedout Mega-Merge seismic reprocessing project, which integrated multiple high-quality seismic surveys to sharpen the subsurface imaging across the Joint Venture's permits.
The upgrade spans 130 prospects across the Bedout Sub-Basin permits (WA-435-P, WA-436-P, WA-437-P, WA-438-P), with Carnarvon's net share now estimated at 1.021 billion boe unrisked. The company emphasises these remain prospective resources, undiscovered accumulations with inherent geological and development risks requiring further appraisal.
Drilling Campaign Secured with Transocean Equinox
The Ara prospect, situated about 80 kilometres north of the Dorado field, is the leading candidate for the firm well. It targets a new basin play fairway with two independent objectives within the Middle and Late Triassic formations, offering multiple reservoir tests in one well. Success here could materially de-risk the Yuma prospect, which shares similar geological features and could become the contingent well.
Exploring New Play Types with Hutton and Goats Eye
Beyond the stratigraphic plays at Ara and Yuma, the Hutton and Goats Eye prospects offer a chance to test the unproven Late Permian carbonate play system. Hutton, with an estimated 347 million boe gross prospective resources and a 20% chance of geological success, represents a high-risk, high-reward target that could open a new exploration fairway across the basin. Goats Eye adds a stacked-play opportunity, combining the carbonate system with overlying Triassic plays, enhancing its geological chance of success.
Carnarvon's CEO Philip Huizenga highlighted the basin's underexplored nature, noting fewer than a dozen wells have been drilled to date, with only six employing modern seismic data. The Joint Venture’s 67% exploration success rate so far underlines the potential locked in the Bedout Basin, which could rival the established Carnarvon Basin with 17.5 trillion cubic feet of gas and 3.1 billion barrels of oil prospective resources.
Strategic Positioning Ahead of Drilling
The upcoming drilling campaign builds on a robust resource base including the Dorado and Pavo discoveries, with Carnarvon holding stakes ranging from 10% to 20% across the permits operated by Santos. The company’s strategic approach combines improved seismic interpretation with a focused drilling program to test multiple play concepts and expand the basin’s prospectivity.
With exploration costs supported by a strong financial position and drilling rig secured, Carnarvon is poised to unlock significant value from the Bedout Basin. The results of the 2027 drilling campaign will be pivotal in validating the seismic-derived resource estimates and shaping the basin’s future development trajectory.
Bottom Line?
Carnarvon’s seismic upgrade and secured rig set the stage for a pivotal 2027 drilling campaign that could redefine the Bedout Basin’s role in Australia’s energy landscape.
Questions in the middle?
- Will the Ara-1 well confirm the new northern basin play fairway and unlock follow-up prospects?
- How will success or failure at Hutton and Goats Eye impact the viability of the Late Permian carbonate play?
- What market response will follow as drilling results clarify the scale and quality of Bedout Basin resources?