# Cobra Drills Three Manna Hill Systems: 7 Things You Need to Know Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e Original source: https://www.cruxinvestor.com/posts/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know Publisher: cruxinvestor Original announcement: 2026-09-03T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Cobra Resources - Ticker: COBR - Exchange: Unavailable - Region: South Australia - Primary commodity: Copper - Secondary commodities: Gold, Molybdenum, Silver, Uranium - Document categories: Drill results - Extracted: 2026-09-03 15:22:01 UTC Narrative sentiment: 0.20 · Bullish ## Minestarters Atlas summary Cobra Resources is advancing the Manna Hill project in South Australia with drilling active across three systems: Blue Rose, Anabama, and Netley Hill. While geological logging suggests a scalable porphyry system at Blue Rose, pending assays and a lack of specific metadata for some existing intersections remain key uncertainties. Reasoning: The report highlights significant geological progress and multiple active drilling systems, but is tempered by the lack of recent assay results and missing provenance for several historical intersections. - Positive factor: Blue Rose skarn shows high-grade copper-gold intercepts - Positive factor: Deepening diamond drilling validates porphyry model via geological logging - Positive factor: Unexpected copper oxide zone found to the south of skarn opens extension potential - Positive factor: Anabama and Netley Hill already have established porphyry-style intersections - Negative factor: Assays for recent diamond drilling are still outstanding - Negative factor: Anabama and Netley Hill intersections lack hole IDs, depths, or dates - Negative factor: Some targets \(Round Hill, Welsh Prince\) are only defined by radiometric anomalies without drilling - Negative factor: One porphyry hole was abandoned due to intense pyrite Facts used in scoring: 19 ## Classification and evidence **Apparent Width Only** Polarity: negative Definition: Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness. Why it applies: The report mentions an oxide zone with no true width or orientation disclosed. Evidence · text > no company disclosure gives its true width or its orientation **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: The article does not mention any QA/QC protocols or laboratory certification for the reported intersections. Evidence · text > Cobra publishes none of these intersections with a hole identifier, a depth from surface, or a date ## Extracted facts Stored fact records: 19. Some facts used in scoring do not have a stored record. ## Drill Results (19) ### Fact 1 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-0) Blue Rose · copper #### Identity - Project: Blue Rose - Commodity: copper - Ticker: COBR #### Geometry - Grade: 2.2 - Grade Unit: % - Intercept: 47 m - From: 11 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: High-grade copper intercept reported at Blue Rose. - Positive factor: Strong copper grade Evidence · text > returned 47 meters \(m\) at 2.2% copper ### Fact 2 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-1) Blue Rose · gold #### Identity - Project: Blue Rose - Commodity: gold - Ticker: COBR #### Geometry - Grade: 0.78 - Grade Unit: g/t - Intercept: 47 m - From: 11 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Gold grade accompanying the copper intercept at Blue Rose. - Positive factor: Gold credits in copper intercept Evidence · text > 0.78 grams per metric ton \(g/t\) gold from 11 m ### Fact 3 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-2) Blue Rose · copper #### Identity - Project: Blue Rose - Commodity: copper - Ticker: COBR #### Geometry - Grade: 0.6 - Grade Unit: % - Intercept: 86 m - From: 18 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: RC drilling results at Blue Rose. - Positive factor: Wide intercept Evidence · text > returned 86 m at 0.60% copper ### Fact 4 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-3) Blue Rose · gold #### Identity - Project: Blue Rose - Commodity: gold - Ticker: COBR #### Geometry - Grade: 0.14 - Grade Unit: g/t - Intercept: 86 m - From: 18 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Gold grade accompanying the copper intercept at Blue Rose. Evidence · text > 0.14 g/t gold from 18 m ### Fact 5 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-4) Blue Rose · copper #### Identity - Project: Blue Rose - Commodity: copper - Ticker: COBR #### Geometry - Grade: 1.02 - Grade Unit: % - Intercept: 74 m - From: 72 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: RC drilling results at Blue Rose. - Positive factor: Strong copper grade Evidence · text > 74 m at 1.02% copper ### Fact 6 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-5) Blue Rose · gold #### Identity - Project: Blue Rose - Commodity: gold - Ticker: COBR #### Geometry - Grade: 0.25 - Grade Unit: g/t - Intercept: 74 m - From: 72 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Gold grade accompanying the copper intercept at Blue Rose. Evidence · text > 0.25 g/t gold from 72 m ### Fact 7 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-6) Netley Hill · copper #### Identity - Project: Netley Hill - Commodity: copper - Ticker: COBR #### Geometry - Grade: 0.1 - Grade Unit: % - Intercept: 350 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Porphyry-style intersection at Netley Hill with no provenance. - Positive factor: Large width - Negative factor: No hole ID or date provided Evidence · text > 350 m at 0.1% copper ### Fact 8 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-7) Netley Hill · molybdenum #### Identity - Project: Netley Hill - Commodity: molybdenum - Ticker: COBR #### Geometry - Grade: 0.015 - Grade Unit: % - Intercept: 350 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Trace molybdenum intersection at Netley Hill. - Negative factor: No hole ID or date provided Evidence · text > 0.015% molybdenum ### Fact 9 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-8) Netley Hill · silver #### Identity - Project: Netley Hill - Commodity: silver - Ticker: COBR #### Geometry - Grade: 1 - Grade Unit: g/t - Intercept: 350 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Silver credit at Netley Hill. - Negative factor: No hole ID or date provided Evidence · text > 1 g/t silver ### Fact 10 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-9) Netley Hill · copper #### Identity - Project: Netley Hill - Commodity: copper - Ticker: COBR #### Geometry - Grade: 0.3 - Grade Unit: % - Intercept: 24 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Porphyry-style intersection at Netley Hill with no provenance. - Negative factor: No hole ID or date provided Evidence · text > 24 m at 0.3% copper ### Fact 11 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-10) Netley Hill · molybdenum #### Identity - Project: Netley Hill - Commodity: molybdenum - Ticker: COBR #### Geometry - Grade: 0.02 - Grade Unit: % - Intercept: 24 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Trace molybdenum intersection at Netley Hill. - Negative factor: No hole ID or date provided Evidence · text > 0.02% molybdenum ### Fact 12 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-11) Netley Hill · copper #### Identity - Project: Netley Hill - Commodity: copper - Ticker: COBR #### Geometry - Grade: 0.1 - Grade Unit: % - Intercept: 64 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Porphyry-style intersection at Netley Hill with no provenance. - Negative factor: No hole ID or date provided Evidence · text > 64 m at 0.1% copper ### Fact 13 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-12) Netley Hill · molybdenum #### Identity - Project: Netley Hill - Commodity: molybdenum - Ticker: COBR #### Geometry - Grade: 0.02 - Grade Unit: % - Intercept: 64 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Trace molybdenum intersection at Netley Hill. - Negative factor: No hole ID or date provided Evidence · text > 0.02% molybdenum ### Fact 14 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-13) Netley Hill · molybdenum #### Identity - Project: Netley Hill - Commodity: molybdenum - Ticker: COBR #### Geometry - Grade: 0.05 - Grade Unit: % - Intercept: 40 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Molybdenum intersection at Netley Hill. - Negative factor: No hole ID or date provided Evidence · text > 40 m at 0.05% molybdenum ### Fact 15 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-14) Anabama · copper #### Identity - Project: Anabama - Commodity: copper - Ticker: COBR #### Geometry - Grade: 0.2 - Grade Unit: % - Intercept: 27 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Porphyry-style intersection at Anabama with no provenance. - Negative factor: No hole ID or date provided Evidence · text > 27 m at 0.2% copper ### Fact 16 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-15) Anabama · molybdenum #### Identity - Project: Anabama - Commodity: molybdenum - Ticker: COBR #### Geometry - Grade: 0.06 - Grade Unit: % - Intercept: 27 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Molybdenum intersection at Anabama. - Negative factor: No hole ID or date provided Evidence · text > 0.06% molybdenum ### Fact 17 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-16) Anabama · copper #### Identity - Project: Anabama - Commodity: copper - Ticker: COBR #### Geometry - Grade: 0.4 - Grade Unit: % - Intercept: 9 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Porphyry-style intersection at Anabama with no provenance. - Negative factor: No hole ID or date provided Evidence · text > 9 m at 0.4% copper ### Fact 18 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-17) Anabama · copper #### Identity - Project: Anabama - Commodity: copper - Ticker: COBR #### Geometry - Grade: 0.13 - Grade Unit: % - Intercept: 21 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Porphyry-style intersection at Anabama with no provenance. - Negative factor: No hole ID or date provided Evidence · text > 21 m at 0.13% copper ### Fact 19 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-drills-three-manna-hill-systems-7-things-you-need-to-know--c6027d07-cb24-47c2-aef4-ed9f213ebf3e#fact-drill-facts-18) Anabama · molybdenum #### Identity - Project: Anabama - Commodity: molybdenum - Ticker: COBR #### Geometry - Grade: 0.095 - Grade Unit: % - Intercept: 9 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-03T00:00:00.000Z Reasoning: Molybdenum intersection at Anabama. - Negative factor: No hole ID or date provided Evidence · text > 9 m at 0.095% molybdenum ## 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.