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United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

BLUE DOLPHIN ENERGY CO

BDCO · OTC · CIK 0000793306 · Energy · Oil & Gas Refining & Marketing

INSIDER SIGNAL

50.3 / 100

2 buyers · 11 purchase transaction lines · $88.9K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleModerate
RecencyModerate
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+14.0 / 35
Purchase size+7.0 / 25
Role+14.0 / 20
Recency+5.3 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 2 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Role scores low · most senior buyer: TenPercentOwner (CEO, chair and 10% owners score lowest)

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
McDougall William ChristopherOther
●●
LAZARUS ENERGY HOLDINGS, LLCTenPercentOwner
●●
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS2
PURCHASE CONCENTRATION86%Largest buyer: LAZARUS ENERGY HOLDINGS, LLC · $76.6K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-27–2026-05-27

Roles in the peak window: TenPercentOwner. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

50.3 / 100

Latest recorded score

↓ -1.7 ptsversus the previous recorded snapshot
  1. 55.1
  2. 54.3
  3. 52.1
  4. 52.0
  5. 50.3

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

20Purchases
0Sales
0Other Form 4 lines
5SEC filings · 365 days
BUYING11 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER0 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
+14.3%
3M
+258.0%
6M
+342.3%
12M
+858.7%

Volatility & liquidity

Volatility
123.0%
Beta
—
Avg daily value
USD 622,260

Valuation

Market cap
USD 204.6M
P/E
—

Fundamentals

Profit margin
0.0%
ROE
0.0%
Industry
Oil & Gas Refining & Marketing

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-14 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
2,501
Previous report
30,067
Avg daily volume
159,787
Days to cover
≤ 1.0

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-10McDougall William ChristopherPurchase (P)Common Stock800USD 12.84USD 10,274SEC filing ↗
2026-09-03McDougall William ChristopherPurchase (P)Common Stock200USD 9.95USD 1,990SEC filing ↗
2026-06-12LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock5,000USD 3.54USD 17,700SEC filing ↗
2026-05-27LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock15,000USD 3.93USD 58,900SEC filing ↗
2026-04-20LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock12,500USD 3.20USD 40,000SEC filing ↗
2026-04-17LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock27,500USD 2.86USD 78,675SEC filing ↗
2026-04-16LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock12,500USD 3.12USD 39,000SEC filing ↗
2025-09-11CARROLL JONATHAN PPurchase (P)Common Stock4,221USD 1.42USD 5,994SEC filing ↗
2025-09-10LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock20,000USD 1.44USD 28,890SEC filing ↗
2025-09-08LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock10,000USD 1.45USD 14,500SEC filing ↗
2025-06-12LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock5,000USD 1.34USD 6,700SEC filing ↗
2025-06-11LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock3,544USD 1.35USD 4,784SEC filing ↗
2025-04-11CARROLL JONATHAN PPurchase (P)Common Stock1,000USD 1.91USD 1,910SEC filing ↗
2025-04-10CARROLL JONATHAN PPurchase (P)Common Stock3,000USD 1.86USD 5,580SEC filing ↗
2025-04-09CARROLL JONATHAN PPurchase (P)Common Stock1,000USD 1.74USD 1,740SEC filing ↗

Form 4 evidence

20 transaction lines in the latest 365-day window; 161 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-10McDougall William ChristopherPurchase (P)Common Stock800USD 12.84USD 10,274SEC filing ↗
2026-09-03McDougall William ChristopherPurchase (P)Common Stock200USD 9.95USD 1,990SEC filing ↗
2026-06-12LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock5,000USD 3.54USD 17,700SEC filing ↗
Show recent Form 4 evidence (7 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-10McDougall William ChristopherPurchase (P)Common Stock800USD 12.84USD 10,274SEC filing ↗
2026-09-03McDougall William ChristopherPurchase (P)Common Stock200USD 9.95USD 1,990SEC filing ↗
2026-06-12LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock5,000USD 3.54USD 17,700SEC filing ↗
2026-05-27LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock15,000USD 3.93USD 58,900SEC filing ↗
2026-04-20LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock12,500USD 3.20USD 40,000SEC filing ↗
2026-04-17LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock27,500USD 2.86USD 78,675SEC filing ↗
2026-04-16LAZARUS ENERGY HOLDINGS, LLCPurchase (P)Common Stock12,500USD 3.12USD 39,000SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerBDCO
CIK0000793306
SectorEnergy
IndustryOil & Gas Refining & Marketing Yahoo Finance
SEC SIC1311 Crude Petroleum & Natural Gas
ExchangeOTC

Data coverage

Local Form 4 history161 transaction lines from 2020-04-30 to 2026-09-10
147 P purchase lines · 0 S sale lines · 14 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.