The drilling of the Chikumbi-1 (CH-1) appraisal well in the onshore Ntorya gas field, Tanzania, is poised to be the most significant, individual natural gas well target ever available to stock market investors. That sounds like a bombastic claim but this assertion is based on extensive research as outlined below.
1.Context: CH-1 is in the Ntorya Gas Field; part of the Mtwara License
Following their processing of high-quality 3D seismic of 338 km2 over the Mtwara License area, On Feb 06th 2024 ARA Petroleum issued a “Revised Resource Potential” report1. This confirmed a dramatic increase in estimated resources including: an aggregated block total Pmean unrisked GIIP potential estimated at ~16.4 TCF.
2.Ntorya Gas Field Higher Confidence Area
Aggregated block total Pmean unrisked GIIP potential estimated at ~16.4 TCF
Aminex’s RNS associated with the report confirmed2:
“A high confidence area with a revised in-place volumetric estimate for the Ntorya gas discovery. A most-likely (approximating to P50) estimate of 3.45 trillion cubic feet (Tcf) of Gas Initially In Place (GIIP) is now believed to be potentially connected to the reservoir sandstones encountered in the Ntorya-1 (NT-1) and Ntorya-2 (NT-2)discovery wells”.
3.The Core Hypothesis: CH-1’s combination of cost efficiency and anticipated resulting incremental resources uplift is unmatched.
The Chikumbi-1 well achieves a unique convergence of World-Class Scale, Capital Efficiency, and a Low-Risk Profile that sets it apart from every other multi-TCF discovery or appraisal well, ever accessible to stock market investors.
The true measure of a well’s significance for an investor is the rate of return it provides — i.e. the resource upside confirmed per dollar spent on drilling. Onshore drilling is substantially cheaper than deepwater drilling. According to the respected site Planet Energies:
“It costs at least €3 million to €4 million to drill an exploration well onshore and €20 million to €60 million offshore. In the case of challenging offshore drilling, for instance in deep water or extreme weather conditions, this can rise to €100 million”. 3
(€20m = ~$23.2m. €60m =$69.6m. €100 = ~$116m) Note that the majority of large offshore finds are Drilling rig at Ntorya. Source: Aminex Plc Deepwater or Ultra Deepwater. CH1 was estimated at $7m in early 20224 but that was prior to the
shelving of the Jurassic target. Likely reducing the cost to more like $3.5m to $5.5m. Also, considering overall downward trend in rig hire costs since 2022, the $3.5m figure is more likely.
This research uses a Cost Factor Adjusted (CFA) resource significance metric (conservative proprietary metric), which applies a cost penalty to the size of deepwater resources to normalize the comparison against low-cost onshore drilling.
Comparing the likely $3.5m for Ntorya Vs the $69.6m for deepwater or $116m for ultra deepwater, this gives us a range of 19.9 to 33.14 for how many times cheaper Ntorya will be in comparison. Considering that cost differential range, this research uses a Cost Factor Adjusted (CFA) factor of ÷ by 20 – right at the bottom of the cost differential range.
Investor Significance of Chikumbi-1 Compounded by Low Risk Profile:
This is one of the most compelling aspects of the Chikumbi-1 / Ntorya story. The project has drastically reduced the regulatory, market, and financial risks that often plague such projects:
Geological De-Risking: CH-1 is an appraisal well, not a wildcat. It follows two existing, commercially viable wells and the target has been defined by very high-quality 3D seismic. The high pressures previously encountered are a positive technical sign, indicating a strong natural reservoir drive.
Market and Price Certainty: The project holds a 25-year Development Licence and a Gas Sales Agreement (GSA) is already signed. With surging domestic demand in Tanzania, the primary commercial risks of finding a buyer and agreeing on a price are greatly reduced (though industrial customers will also be sought). Furthermore, the FDP outlines a high plateau of 280 MMscfd, significantly exceeding Tanzania’s current output, cementing Ntorya’s status as a National Strategic Project. Export plans mean that Ntorya is also of regional strategic importance.
Infrastructure & Near-Term Catalysts: The Tanzanian state is funding and building the pipeline from Ntorya to the Madimba gas processing plant (construction contract awarded). Groundwork is set to commence in January 2026, with First Gas targeted for August 2026. This removes the burden of millions of dollars in CAPEX from the partners and provides clear, near-term monetisation catalysts.
Financial & Governance Certainty:
o Aminex PLC is listed on the LSE Main Market, subjecting the company to strenuous governance rules that provide high regulatory assurance to both private and institutional investors.
o Following a recent strategic placement, Aminex is debt-free and fully funded for its share of the capital expenditure through to First Gas. This provides protection for existing shareholders from future dilution and ensures future revenue is immediately accretive.
o Un-factored Upside: The resource target is for gas with associated condensate; any discovery of oil (a genuine possibility based on previous shows, etc.) would represent significant, un-factored upside.
The above combination of factors is very rare and significant and should not be taken for granted.
There are so many other positives we could add including the circa 20 MMbblsrecoverable condensate associated with the 3.45 GIPP alone7(hugely valuable and should will presumably increase in tandem with gas estimates following a successful CH-1 drill),
Tanzania’s economic growth forecast at 6% for this year and population expected to double by 2050 to 140 million8, Tanzania’s plans to become a regional Energy Hub (exporting electricity and natural gas) and so on. There are enough additional positives that it would require pages of additional content to cover them properly.
Conclusion:
The Chikumbi-1 (CH-1) is a pivotal technical step to unlock a de risked, world-class conventional gas resource at an unparalleled level of capital efficiency.
For stock market investors seeking a high rate of return on a low risk, multi-TCF conventional gas event that is governance assured by an LSE Main Market listing and fully funded to first gas, this research indicates that CH-1 is the most significant documented opportunity of its kind of all time, anywhere in the World.
