Prominence Energy, a public company based in Perth, Western Australia, has announced the award of two adjacent exploration blocks in the USA Outer Continental Shelf (OCS) - Leases OCS-G-37341 and OCS-G-37342 - following a period of extensive due diligence
Highlights
- PRM has been awarded two adjacent lease blocks located on the OCS off Texas in approximately 75m (250ft) of water. Together they cover an area of 11,520 acres (~46km2).
- The leases have an initial five-year exploration term, there is no minimum work program and the blocks can be held by production for 25 years.
- PRM bid on the basis of mapping and AVO analysis of seismic in the blocks, which identified a high potential and sizeable gas prospect. The AVO analysis shows two sands with Class III AVO anomalies (a strong indication of a gas-filled sand).
- The main sand is interpreted to be a Middle Miocene Corsair delta sand up to 46m thick, with an area of between 4,000 to 7,500 acres as mapped, the sand is steeply dipping and the gas column could be up to 850m from the crest to structural closure.
- PRM intends to purchase the remaining seismic over the prospect and perform detailed mapping work on the prospect and then have the Prospective Resources assessment independently reviewed by a reserves auditor.
- PRM continues to review additional projects across a broad spectrum of types and locations, including CCUS, Hydrogen, Helium, and conventional oil and gas opportunities.
Commenting on the News Alex Parks Managing Director of PRM said 'PRM is very pleased to have secured the Big Apple Prospect blocks with 5-year leases. The Big Apple prospect is potentially very material in size and the AVO work indicates prospectivity for gas. PRM holds the leases with a 100% working interest. The forward plan is to perform a detailed technical workup of the prospect and then consider seeking a farm-in partner to participate in and fund the drilling of an exploration well.'
Prospectivity
The main prospect in the blocks has been named Big Apple. PRM has mapped and performed AVO analysis on seismic in the blocks and identified a sizeable gas prospect with an area of between 4,000 to 7,500 acres. The AVO analysis shows two sands with Class III AVO anomalies (a strong indication of a gas-filled sand). Big Apple is a Middle Miocene Corsair delta sand deposited between two salt diapirs. The sands are bounded by Upper and Lower Miocene shale prone facies which are likely to provide a good seal.
The main sand is at a depth of approximately 2,600m (8,500ft) interpreted to be up to 46m thick, and as mapped the gas column in the steeply dipping sand could be up to 850m from crest to structural closure. A secondary sand with a similar Class III AVO anomaly above the main sand is interpreted to be 15-20m thick. The AVO response implies a porosity of 17-25%. Located in approximately 250ft water depth, the prospect can be drilled using a jack-up rig.
Forward Plan
PRM intends to purchase the remaining speculative seismic over the prospect and perform detailed mapping work on the prospect and then have the Prospective Resources assessment independently reviewed by a Reserves Auditor.
PRM will consider seeking a farm-in partner to participate in the project on a promoted basis and move to drilling of the project as soon as practical.
Bid Commercial Rational
The AVO (quantitative seismic analysis) performed by PRM indicates a high probability of a gas-filled sand being present and the areal extent and thickness of the prospect as mapped is sizeable. PRM believes gas will be used as a transition fuel for decades to come. The USA is increasingly investing in liquefaction plants to produce and export LNG and is scheduled to add at least three major facilities that are forecast to be in operation over the next five years. This bodes well for US gas prices in the medium term and makes a substantial gas prospect like Big Apple potentially very valuable if a discovery is made.
Lease and Bid Details
PRM placed a bid via newly formed wholly-owned subsidiary PRM Energy Texas LLC (PRM Texas). The Bid Bonus offered by PRM was marginally above the minimum acceptable bid and the federal royalty rate is fixed for all blocks in this sale at 18.75%. PRM Texas is now the leaseholder for the Brazos Area, South Addition Blocks A87 & A90, Lease Numbers OCS-G 27241, and OCS-G 37342 respectively. The Leases commence on 1 July 2023 with an initial 5-year term. There is no minimum work program. The leases have annual rent payments of US$57,600 each. The leases can be dropped at any time and can be held by production for 25 years.
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Source: Prominence Energy
