Noble Plains Uranium Completes Transformational Duck Creek Drill Program as Project Advances Toward First Compliant Resource
Noble Plains Uranium Completes Transformational Duck Creek Drill
Program as Project Advances Toward First Compliant Resource
February 12, 2026 – Vancouver, British Columbia – Noble Plains Uranium Corp. (TSX -V: NOBL, OTCQB:
NBLXF, FSE: INE0) (“Noble Plains” or the “Company”) a U.S. focused uranium exploration and development
company, is pleased to announce the final set of drill results from its completed 148-hole, 30,825-foot drill
program at its flagship Duck Creek Project in Wyoming’s Powder River Basin.
“This drill program has exceeded our expectations across the board,” said Drew Zimmerman, CEO of Noble
Plains Uranium. “We confirmed historic data, expanded the minerali zed footprint, delivered multiple
program-high grades, and achieved a 90% hit rate across 148 holes, all in under six months of acquisition.
Duck Creek has gone from an overlooked historical asset to a project with the scale, continuity and grade
profile to support a meaningful resource this spring. This program is how we build out real uranium pounds
in premier U.S. jurisdictions at a time when domestic supply of this critical mineral has never been more
urgent.”
This final batch delivered some of the strongest results of the entire program and caps a drill campaign
that has consistently exceeded expectations. Hole 25 -16-140 returned 17.5 feet of 0.2 35% eU₃O₈,
including 2.0 feet grading 1.00% eU₃O₈ and 1.0 foot at 1.49% eU₃O₈. Hole 25-28-143 intersected 9.0 feet
of 0.228% eU₃O₈, including 5.5 feet at 0.362% eU₃O₈ and 1.0 foot at 0.972% eU₃O₈. Importantly these
high-grade intercepts continue to occur within the same laterally continuous roll -front system that has
now been traced across the property. Rather than isolated high -grade hits, these results sit within a
broader, predictable mineralized corridor that is ideally suited to ISR extraction.
Beyond the individual highlights, the significance of this program lies in the consistency and reproducibility
of the results. A total of 148 holes were completed, every planned confirmation hole successfully twinned
historic drilling, and 90.12% of all ho les intersected uranium mineralization at or above the 0.02% eU₃O₈
cut-off grade. As drilling progressed northward, strong intercepts continued to be encountered, directly
supporting the Company’s recent 2.25-mile expansion of the project footprint along trend.
In the past six months, Noble Plains progressed Duck Creek from the closing of the acquisition, through
permitting, to the completion of a highly successful drill program that now provides a robust dataset to
support a resource estimate in compliance with NI 43-101 standards this spring. This is the Company’s
strategy in action: not grassroots exploration, but the disciplined conversion of known historical
mineralization into newly defined, compliant uranium pounds in the ground.
Table 1: Drill Intercept Highlights
Hole ID Easting Northing Hole Depth
(ft)
From
(ft)
To
(ft)
Length
(ft)
Grade
(% eU3O8)*
25-15-126 449655 4781286 180 111.5 151.5 40.0 0.043
including 117 135.5 18.5 0.064
including 124.0 126.0 2.0 0.141
25-15-129 449657 4781477 200 124.0 169.0 45.0 0.043
including 128.0 135.5 7.5 0.134
including 131.0 134.0 3.0 0.207
25-15-130 449589 4781400 180 140.5 151.0 10.5 0.061
including 141.5 143.5 2.0 0.215
25-16-132 449349 4781125 100 18.5 36.5 18.0 0.048
including 19.5 30.0 10.5 0.073
and 62 84 22 0.042
including 68.5 79.0 10.5 0.063
25-16-134 449287 4781070 100 51.5 75.5 24.0 0.084
including 54.0 58.0 4.0 0.195
25-16-135 449300 4781121 100 23.0 44.5 21.5 0.026
and 59.0 75.0 16.0 0.083
25-16-136 449272 4780947 190 78.0 95.5 17.5 0.080
including 90.5 93.5 3.0 0.205
25-16-139 449316 4780830 220 106.0 110.0 4.0 0.040
and 154.5 161.5 7.0 0.064
including 156.0 159.0 3.0 0.109
25-16-140 449268 4780792 220 112.5 117.0 4.5 0.031
and 125.0 142.5 17.5 0.235
including 138.5 140.5 2.0 1.000
with 139.0 140.0 1.0 1.490
25-16-141 449244 4780603 220 132.0 139.0 7.0 0.021
and 149.5 158.5 9.0 0.147
including 151.0 153.0 2.0 0.383
25-28-143 449101 4777955 180 44.5 43.5 9 0.228
and 46.0 51.5 5.5 0.362
including 48.0 49.0 1.0 0.972
and 129.5 145.5 16.0 0.114
including 139.5 144.0 4.5 0.275
25-28-146 449283 4781005 1000 90.0 101.0 11.0 0.093
including 95.0 97.0 2.0 0.284
All of the holes drilled are vertical and the geological units are essentially flat so that intercept widths are interpreted to be true
thickness. The water table in the first 122 holes ranges from a depth of 5 feet to 75 feet and averages 16.5 feet deep.
Northern Drilling Confirms Trend Continuity and Supports Land Expansion
The final holes were drilled toward the northern end of the historic uranium trend and continue to
demonstrate strong continuity of minerali zation. Importantly, several of the strongest intercepts of the
entire program came from this area, providing geological support for the continuation of the system onto
the Company’s recently staked northern claims toward known uranium resources held by Uranium Energy
Corp.
“The strength and continuity of the results of this program are extremely important because they occur
along the same historic trend that originally drew us to Duck Creek, and they are confirming that the roll-
front system is both continuous and capable of hosting higher -grade centres within that continuity,” said
Paul Cowley, P .Geo., COO of Noble Plains Uranium. “Across 148 holes we have consistently reproduced and
expanded upon the historic data, with grades and thicknesses that validate our geological model. The
strength and predictability we are seeing along this tr end gives us a high level of confidence that the
system is likely to continue onto our newly staked northern ground. This is exactly the type of geological
consistency you want to see when advancing a project toward a scalable ISR uranium resource.”
Figure 1 shows the location of the twenty-three new holes in red, the three deep holes in blue and the
first one hundred and twenty-two holes in green within the 3-mile-long trend of historic drilling.
Figure 1 – New Drillhole Locations
Fort Union Formation Test
Three broad-spaced deeper holes were drilled to test the Fort Union Formation beneath the Wasatch,
where neighbouring deposits host significant resources. The goal of the deeper holes was to confirm the
existence of Fort Union sand body deposition and gather information on the strike and location of the
redox front. All three holes successfully penetrated the “S”, “Q” and “O4” and “O3” sands of the Fort Union
Formation. The drilling confirms the presence of thick sections of coarse -grained clean host sands of the
Fort Union F ormation on the property, however, the location of the anticipated roll front within these
sands remains to be determined with future drilling and remains a large opportunity to explore on the
property.
This summer, the Company is partnering with the University of Wyoming on testing geophysical methods
to identify roll fronts at depth. With such a large area to test on the property for roll fronts in the Fort
Union, these geophysical methods will help focus more efficient drill testing.
Path Toward a Compliant Resource
With drilling now complete, the Company’s focus turns to final database compilation and geological
modelling work already underway. Noble Plains expects to deliver its first compliant uranium resource at
Duck Creek this spring, establishing a strong base of value from which to continue expanding the project
along its now five-mile trend.
Duck Creek remains central to Noble Plains’ strategy of building a growing inventory of U.S. uranium
pounds in proven production districts, positioning the Company to benefit from a strengthening uranium
price environment and increasing U.S. government support for domestic critical-mineral supply.
Details of the Drilling Program
* The geophysical results are based on equivalent uranium ( eU308) of the gamma -ray probes calibrated at the
Department of Energy’s Test Facility in Casper, Wyoming. A geophysical tool with gamma-ray, spontaneous potential,
resistivity, and drift detectors was utilized. The reader is cautioned that the reported uranium grades may not reflect
actual concentrations due to the potential for disequilibrium between uranium and its gamma emitting daughter
products. The drill results were determined using thickness and grade % cutoffs of 2-ft, 0.02% eU308 and GT >0.2.
The drilling was done by Tyler Exploration Inc. utilizing a truck mounted mud-rotary rig and the downhole
geophysical logging by Hawkins CBM Logging, both of Wyoming. Bradley Parkes P .Geo, VP Exploration and
Paul Cowley P .Geo, Chief Operating Officer for Noble Plains Uranium Corp., supervised the drilling
activities.
The Company filed a Technical Report, available on SEDAR+ under the Company’s profile, on the Duck
Creek Project on August 14, 2025, which outlined an exploration target ranging from 2.37 million tons at
0.03% U₃O₈ to 5.45 million tons at 0.05% U₃O₈. These ranges were based on assumed Grade -Thickness
(“GT”) values of 0.2 for the lower case and 0.598 for the upper case. The exploration target is conceptual
in nature, does not meet the standards to be classified as mineral resources or mineral reserves, and there
is no certainty that the exploration target will be realized.
About Noble Plains Uranium
Noble Plains Uranium Corp. is a U.S.-focused uranium exploration and development company advancing a
portfolio of high -potential projects amenable to In Situ Recovery (ISR) — the most capital -efficient and
environmentally responsible method of uranium extr action. Our strategy targets historically drilled and
underexplored assets in proven jurisdictions, with the objective of rapidly delineating NI 43-101 compliant
resources and building a scalable inventory of domestic uranium.
On Behalf of the Board of Directors,
“Drew Zimmerman”, CEO & President
For further information, please contact: Drew Zimmerman: (778) 686-0973
Website: www.nobleplains.com
Bradley Parkes, P .Geo., VP Exploration of Noble Plains Uranium Corp., is the Qualified Person as defined in
National Instrument 43-101, who has read and approved the technical content of this news release.
This news release includes certain forward -looking statements as well as management's objectives,
strategies, beliefs and intentions. Forward looking statements are frequently identified by such words as
"may", "will", "plan", "expect", "anticipate", "esti mate", "intend" and similar words referring to future
events and results. Forward-looking statements include, but are not limited to, statements regarding the
planned drill program, the timing of drilling and results, the potential to outline a uranium resource
prepared in accordance with National Instrument 43 -101 standards, the potential to confirm or expand
mineralization, and the potential of the Duck Creek Project to become a significant uranium asset. Forward-
looking statements are based on the current opinions and expectations of management. All forward -
looking information is inherently uncertain and subject to a variety of assumptions, risks and uncertainties,
including but not limited to: exploration results that may not be consistent w ith historical data or
expectations, geological or technical issues, regulatory approvals, availability of equipment and personnel,
the speculative nature of mineral exploration and development, and fluctuating commodity prices , as
described in more detail in our recent securities filings available at www.sedar plus.ca. Actual events or
results may differ materially from those projected in the forward -looking statements and we caution
against placing undue reliance thereon. We assume no obligation to revise or update these forward -
looking statements except as required by applicable law.
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