# Mendell Helium rises 5% as Rost 2 well records helium concentration of up to 10.9%

Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/mendell-helium-rises-5-as-rost-2-well-records-helium-concentration-of-up-to-10-9--64a01734-bc1f-4d33-abed-f582314e0835

Original source: https://www.proactiveinvestors.com/companies/news/1098488/mendell-helium-rises-5-as-rost-2-well-records-helium-concentration-of-up-to-10-9-1098488.html

Publisher: proactiveinvestors

Original announcement: 2026-09-14T11:32:12.965Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- 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

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas 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 factor: High helium concentration \(10.9%\)

- Positive factor: Concentration is double that of neighbouring Rost 1 well

- Positive factor: Potentially unprecedented concentrations in the region

- Positive factor: Water extraction rates reaching 1,100 barrels per day

- Negative factor: Flow rates at Rost 2 remain low pending further de-watering

Facts used in scoring: 1

## Classification and evidence

**Bonanza Intercept**

Polarity: positive

Definition: 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 Disclosed**

Polarity: positive

Definition: 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 2-26

[Link to this fact](https://atlas-extractions.minestarters.com/news/mendell-helium-rises-5-as-rost-2-well-records-helium-concentration-of-up-to-10-9--64a01734-bc1f-4d33-abed-f582314e0835#fact-drill-facts-0)

Fort Dodge · helium

#### 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 factor: 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 Disclosed**

Polarity: positive

Definition: 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 Undisclosed**

Polarity: negative

Definition: 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.