Mendell Helium rises 5% as Rost 2 well records helium concentration of up to 10.9%
Original announcement by proactiveinvestors on
- Company
- Mendell Helium PLC
- Ticker
- MDH
- Exchange
- Unavailable
- Region
- Kansas
- Primary commodity
- Helium
- Secondary commodities
- None reported
- Document categories
- Drill results
- Extracted
- 2026-09-14 11:36:24 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Mendell Helium reported high helium concentrations of up to 10.9% at its Rost 2-26 well in Kansas. The concentrations are more than double those observed at the nearby Rost 1 well, though flow rates currently remain low due to ongoing de-watering.
Reasoning: The report of 10.9% helium concentration is described by the CEO as 'world class' and potentially unprecedented for the area, representing a significant discovery signal.
Positive factors
- High helium concentration (10.9%)
- Concentration is double that of neighbouring Rost 1 well
- Potentially unprecedented concentrations in the region
- Water extraction rates reaching 1,100 barrels per day
Negative factors
- Flow rates at Rost 2 remain low pending further de-watering
Facts used in scoring: 1
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 10.9% helium concentration is described as world class and potentially unprecedented.
Evidence · text
“helium concentrations recorded so far were world class”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The document mentions preliminary gas analysis but does not explicitly detail QA/QC protocols or lab certification.
Evidence · text
“Preliminary gas analysis at Rost 2 indicated”
Extracted facts
Stored fact records: 1. Some facts used in scoring do not have a stored record.
Drill Results (1)
Rost 2-26Fort Dodge · heliumGrade: 10.9Grade Unit: %View all detailsHide details
Identity
- Hole ID
- Rost 2-26
- Project
- Fort Dodge
- Commodity
- helium
- Region
- kansas
- Reported Region
- kansas
- Ticker
- MDH
Geometry
- Grade
- 10.9
- Grade Unit
- %
Classification
- Sample Type
- drill
- Group ID
- Rost 2-26:0-0
QA/QC
- QA/QC Disclosed
- Yes
- QA/QC Methods
- standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-14T00:00:00.000Z
Reasoning: 10.9% helium concentration is exceptionally high for the region.
Positive factors
- 10.9% concentration is described as world class
Evidence · text
“Rost 2 well records helium concentration of up to 10.9%”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.