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Which cognitive biases caused Exxon Shipping Company's collapse?

5 bias patterns are documented in this case, led by Cognitive Misering. The full set: Cognitive Misering, Status Quo Bias, Overconfidence Bias, Loss Aversion, Anchoring Bias. Each is mapped to Decision Intel's 22-bias R²F taxonomy with stable IDs and academic citations.

What is Decision Intel's reasoning audit?

Decision Intel runs a 12-node Recognition-Rigor Framework (R²F) pipeline on strategic memos, detecting cognitive biases from a 22-bias canonical taxonomy and producing a Decision Quality Index (DQI) score. The audit produces a hashed, tamper-evident Decision Provenance Record (DPR) suitable for audit-committee review.

All case studies

Catastrophic failureEnergy1989

Exxon Shipping Company

Exxon Valdez Oil Spill

Estimated impact: $7B in cleanup and legal costs; irreversible environmental damage

F14

Decision Quality Index (simulated)

Critical · 5 biases detected, 2 toxic combinations

The Exxon Valdez ran aground in Prince William Sound, Alaska, spilling 11 million gallons of crude oil. The captain had a known alcohol problem, the ship was on autopilot with a fatigued third mate at the helm, and Exxon had reduced crew sizes to cut costs. Cleanup was chaotic and ineffective.

Decision context

Whether to reduce tanker crew sizes and maintain a captain with documented alcohol abuse history on active duty, and whether Alaska's oil spill response capabilities were adequate.

Decision anatomy

Monetary stakes

Very high

Dissent suppressed

Time pressure

None

Unanimous consensus

Decision participants

Dissent encouraged

External advisors

Iterative process

Red = risk factor present · Green = protective factor present

Deep hindsight-stripped analysis coming soon. This case is part of our ongoing backfill to reconstruct what the platform would have flagged at decision time. The summary and bias profile below are drawn from primary sources.

Biases present in the decision

★Cognitive Misering

critical

Status Quo Bias

medium

Overconfidence Bias

high

Loss Aversion

medium

Anchoring Bias

high

★ Primary driver · Severity estimated from bias type and decision outcome

3D Decision Knowledge Graph

Exxon Shipping Company · 5 biases, 2 toxic combinations

Drag to rotate · Scroll to zoom · Click to explore

Decision

Critical

High

Medium

Toxic

Bias Intensity Profile

Severity × confidence across 5 detected biases

Toxic combinations

!Status Quo Lock

Loss aversion combined with status quo bias makes even clearly beneficial change feel impossible.

!Blind Sprint

Overconfidence combined with planning fallacy creates unstoppable momentum toward failure.

Reference class base rates

Across all 143 curated case studies in our library:

89%

base failure rate

-0%

partial / mixed

11%

base success rate

■ Failure■ Partial■ Success

Lessons learned

Cognitive misering in crew management: maintaining a captain with documented alcohol issues because he was experienced and replacements were costly
Status quo bias in oil spill preparedness: Alyeska Pipeline maintained theoretical response plans that were never tested at scale
Cost-cutting on crew sizes directly contributed to the fatigue that caused the grounding

Source: NTSB Marine Accident Report MAR-90-04 (1990); Alaska Oil Spill Commission Final Report (1990) (NTSB Report)

Pilot slots available

We caught these patterns in Exxon Shipping Company's own record — before the outcome.

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Workflows that fire on decisions like Exxon Shipping Company’s

The same Recognition-Rigor Framework that documents this case audits memos in the same shape — before the outcome forces the lesson.

For CSOs and Heads of Strategic Planning

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Catastrophic failure2018

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Catastrophic failure1984

Continental Illinois National Bank

Continental Illinois Bank Bailout

Catastrophic failure2011

Tokyo Electric Power Company (TEPCO)

Fukushima Daiichi Nuclear Disaster

Lessons learned

Cognitive misering in crew management: maintaining a captain with documented alcohol issues because he was experienced and replacements were costly

Status quo bias in oil spill preparedness: Alyeska Pipeline maintained theoretical response plans that were never tested at scale

Cost-cutting on crew sizes directly contributed to the fatigue that caused the grounding