Guercif - changes to nomenclature & gas volume estimates.1 May 2026 06:03
Within the Annual Report is some volumetric data for the gas within the Moulouya structure, derived from boreholes MOU-1 to MOU-4. Some of the reservoir horizons have been renamed, following correlation of material recovered from drilling of the four wells with the orientation of geological structures known from seismic. What is immediately noticeable is that the potential for biogenic gas from what is now called TGB-6 is much greater than was previously realised, hence the additional new ITR for this horizon.
Nomenclature, from top to bottom: * A-Sands – remains same. * Ma-Sands & TGB-6 - now renamed TGB-6 (TGB = Taza-Guercif Basin). * TGB-4 – remains same. * TGB-6 remains same. * Moulouya Fan – now renamed TGB-1.
All are turbidites, with TGB-1 containing layers of volcaniclastic material (sediment from nearby eroded volcano). This may have given rise to the Helium found in MOU-3, as opposed to that found in MOU-5 which is likely to come from deep magmatic intrusions.
No new information is given regarding shale gas around MOU-1, only repetition of the calculation that up to 7 TCF could be generated in situ.
These are the areas, well occurrences, and P50 volumes for the above formations:
A-Sands, 6km², MOU-3 & ?MOU-4, 21 BCF.
TGB-4, 68.5km², MOU-3, 269 BCF.
TGB-2, ?area, MOU-1 & MOU-3, 16 BCF.
TGB-1, 40+km², MOU-1, -2, -3, & -4, 74 BCF
TGB-6 is under review. It is already known that there is a distinct structural trap penetrated by MOU-3, but also a less well-defined and much larger stratigraphic trap that will be confirmed by MOU-6. There are three reasons for moving the MOU-6 location -definition of the stratigraphic trap, thicker sediments than at MOU-3, and enabling use of both MOU-6 and MOU-3 as production wells – two wells are needed to ensure production continuity. NB – the 3D well location diagram on p.46 incorrectly labels MOU-6 as MOU-5.
P.46 of the AR also gives a very confusing chart with 27 bars, indicating three different TGB-6 areas within the MOU area, each with P10, P50 & P90 estimates, and for each of these, three different scenarios for the extent of the stratigraphic trap, all shown on a logarithmic scale. I have rasterised the scale to come up with comprehensible numbers, my calculations are +/- 10% because of the small scale of the chart. The summary of my summary (!) for TGB-6 horizons is P90 – 350 BCF, P50 – 937 BCF, P10 1835 BCF.
I have added these TGB-6 numbers to the others above. Overall P50 is 1.317 TCF, not including any shale gas. My guestimate of P10 is 2.5 TCF, again no shale gas. To convert this to Reserves, worth $2Bn NPV10 per TCF, it will be necessary to drill MOU-6 ($3M), and sidetrack & frack MOU-3 (?$1-2M). Sidetracking MOU-2 (?$2M) and sidetracking and fracking MOU-4 (?$1-2M) would likely add to the above volumes.
Seems like a viable investment to me. Time for coffee & paracetamol.