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Black Stone Minerals quarterly revenue slides 24.7% to $99.7 million

Black Stone Minerals' revenue decline is deepening. Results for the quarter ended September 30, 2026, from the earnings release filed with the SEC on Nov 3, 2026.

Octans ResearchPublished

Snapshot

Black Stone Minerals' revenue decline is deepening: revenue slid 24.7% to $99.7 million in the quarter ended September 30, 2026, from $132.5 million a year earlier, after a 6.6% year over year decline the quarter before.

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($BSM)▲ +1.02%14.89

as of 16:00 ET · Realtime derived data

What We Know

Revenue for the quarter ended September 30, 2026 was $99.7 million, versus $132.5 million in the same quarter a year earlier, down 24.7%.

Bar chart: Black Stone Minerals: revenue, last eight quarters. US$ millions by fiscal quarter end, as of Nov 3, 2026. Dec 2024 83.7; Mar 2025 59.3; Jun 2025 159.5; Sep 2025 132.5; Dec 2025 118.7; Mar 2026 59.4; Jun 2026 149.0; Sep 2026 99.7. Latest quarter $99.7M, Down 24.7% vs a year earlier.
Source: SEC EDGAR (earnings release and XBRL financial data)

Quarterly revenue by fiscal quarter end, oldest first: Dec 2024: $83.7 million; Mar 2025: $59.3 million; Jun 2025: $159.5 million; Sep 2025: $132.5 million; Dec 2025: $118.7 million; Mar 2026: $59.4 million; Jun 2026: $149.0 million; Sep 2026: $99.7 million.

Octans View

Year over year revenue change by quarter, computed from the filed figures: Dec 2025 up 41.8%; Mar 2026 up 0.2%; Jun 2026 down 6.6%; Sep 2026 down 24.7%. On those figures, Black Stone Minerals' revenue decline is deepening. That read compares the latest two year over year growth rates and nothing else.

Bear Case · Room for Disagreement

This brief covers reported revenue and diluted earnings per share only. It does not cover guidance, margins, segment results, cash flow or the earnings call, and it makes no forecast. Revenue is the total on the release line we matched; a company's own adjusted measures can differ.

Method and source. Octans Research matched the revenue line in the earnings release (Exhibit 99.1) to the year ago quarter the company reported in its own XBRL financial data; the two must agree before anything is published. The quarterly history comes from the same XBRL data. The text is generated from those verified figures by a fixed template; no model wrote it.

Chart

$BSM adjusted close, last 6 months $BSM adjusted close, last 6 months: series rising from 13 to 14.9 (+14.5%) from 2026-05-08 to 2026-11-03. Scale 12 to 16. 1213141516 2026-05-082026-11-03 $BSM ADJUSTED CLOSE, LAST 6 MONTHS +14.5% 14.89
Source: Tiingo · As of 2026-11-03Indicative, not investment advice.

Sources

  1. [1]SEC EDGAR — Black Stone Minerals earnings release for the quarter ended September 30, 2026 (Exhibit 99.1), filed Nov 3, 2026
  2. [2]SEC EDGAR — Black Stone Minerals XBRL financial data (company facts)

These are the sources this piece was drafted from. How we verify. Found an error? Tell us and we correct it in public.

$99.7M

Revenue for the quarter ended September 30, 2026 was $99.7 million, versus $132.5 million in th… · What we know

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