Highlights
• HyTerra confirms a third well, McCoy 1, has been added to the sequence of wells to be drilled
between April and July 2025.
• McCoy 1 is a milestone for the Company as it moves away from "twinning” historical wells to
now selecting well locations based on geological understanding and inhouse IP.
• Murfin rig 116 will mobilise to McCoy 1 following a scheduled crew break. Depending on
maintenance requirements, it is expected to spud in early July.
• Mud gas log readings at various depths in Blythe 13-20 indicate the presence of a hydrogen
and helium play in this area1
. Mud gas samples from surface have been sent to Isotech
Laboratories Inc. for independent verification and compositional analysis.
HyTerra Limited (HyTerra or the Company) has increased the number of wells it
will drill between April and July 2025 at the Nemaha Project in Kansas, USA from two to three.
These wells are the first steps for the Company in executing a comprehensive 12-month exploration
work program designed to unlock the potential of natural (white) hydrogen in Kansas through its
100% owned and operating subsidiary HYT Operating LLC. This exploration program funding is
sourced from an investment in the Company by Fortescue Future Industries Technologies Pty Ltd.
McCoy 1
Based on the results from Sue Duroche 3, the first well drilled in this program, the Company has
decided to add a third well, McCoy 1, to this drilling program. McCoy 1 will be drilled approximately
9km east of Sue Duroche 3 on the same geological structure on the crest of the Nemaha Ridge.
The drilling of McCoy 1 is a milestone for the Company as it moves away from "twinning” historical
wells to now selecting well locations based on geological understanding and inhouse IP. McCoy 1
drill site location (Figure 1) was identified by interpretation of the Company’s Xcalibur Airborne
Gravity Gradiometry and Magnetic survey acquired in 2023, and legacy seismic data purchased
and reprocessed in 2025. The Company has been able to build geological models which can now
be tested, without having to first identify offset wells to twin. This is a major milestone and one that
now differentiates us from many of our peers.
After a planned crew break, the Murfin Rig 116 will mobilise to McCoy 1 following some routine
maintenance. Depending on the time required to perform this work, McCoy 1 is expected to spud
in early July. Having a break with the field crew avoids crew change out and maintains continuity
across the entire exploration campaign allowing for operational efficiencies to be developed.
Blythe 13-20
The recently completed Blythe 13-20 well was drilled to a total depth of 5,300ft mDKB (1,615m) on
time, on budget and with no HSE incidents.
The real time mud gas log recorded hydrogen and helium gas readings at multiple intervals when
drilling, indicating the presence of a hydrogen and helium play in this area. The mud gas samples
collected at surface are now at an independent laboratory (Isotech Laboratories Inc.) with results to
be released to the market once received.
Global recognition
HyTerra continues to receive significant amounts of interest across print media and various
geological groups globally. The Company has accepted the opportunity to speak at the upcoming
Natural Hydrogen event being hosted by The Geological Society in London. Presentation material
will be made public prior to the event.
This announcement has been authorised for release by the Board of Directors.