RE: Development Costs17 Dec 2025 11:39
Good to see the longer term Rukwa development proposal ticking up to 66 wells on the AGM slides (the indicative modelling after the EWT estimated commercial viability around 20-30 wells). It would be good to see some numbers underpinning their assumptions and commercial projections, which haven't been revealed to the market, but there's enough in the CPR to read between some of the lines. Here's another attempt but hopefully someone else can correct or improve on what we know. Suggestions welcome. I'm assuming maybe $450-550 Mscf to a helium offtaker.
According to the CPR, the unpublished feasibility study seems to assume that ITW1 can represent a 'typical well' for scenario planning of future development. So, the best case scenario is that the ESP can flow a sustained 20,000 barrels of fluid a day (max capacity of the pump) at a stabilised gas-water ratio of 0.25 and a helium in gas concentration averaging 5.5%, to yield around 6.2 Mscf per day of helium production (roughly equivalent to say $1m gross value to market per year ?).
Next, they're hoping to drill five production wells with similar characteristics (4-6 weeks drilling per well), to start producing gas in Q3 2026. Early processing capacity seems to be 100,000 barrels inlet fluid (i.e. five wells pumping maximum 20,000 barrels), or 600 Mscf inlet gas, at 4.591%, with a production efficiency of 95% (which is around 5.5 Mscf helium processed output per well per day). Gas water ratio will be relevant to economics but at max gas inlet that might suggest potential gross revenue maybe c. $5m per year from end 2026? Construction costs in 2026 and opex so far unknown.
Then, a Final Investment Decision will be taken end 2026, whether to go ahead with a Central Processing Facility and drilling 15 more wells, bringing total capacity to 400,000 barrels fluid, or 2,000 Mscf gas inlet per day (2,000 x 0.04591 x 0.95 = 87.229 Mscf helium output per day). Presumably that 20 wells is roughly where they cross the line of commercial viability (in line with the original RNS announcement). Potential revenue from the max gas inlet capacity maybe c. $15m+ per annum gross). Construction costs in 2027 and opex so far unknown.
At the AGM, they presented a long term vision of up to 66 wells, spread over 480km2. This would involve other facilities for gas processing and water management and we know they've done FEED studies for production with different options for sizing, capacity, and cost (although we don't know what those are yet). In theory, if the modelling and well spacing is right, then the recurrent revenue might be perpetual (the CPR shows the more conservative reservoir depletion model for comparison over time).
Any thoughts?