Exxon Valdez

E682975

oil tanker ship

Exxon Valdez was a U.S. oil tanker infamous for causing one of the worst environmental disasters in history when it spilled millions of gallons of crude oil off the coast of Alaska in 1989.

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All labels observed (2)

Label	Occurrences
Exxon Valdez canonical	1
Exxon Valdez grounding on Bligh Reef	1

How this entity was disambiguated

This entity first appeared as the object of triple T7702793 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Exxon Valdez
Context triple: [Exxon Valdez oil spill, tanker, Exxon Valdez]

A. M/V Lituya
M/V Lituya is a small Alaska Marine Highway System ferry that primarily serves short-haul routes in Southeast Alaska.
B. M/V Matanuska
M/V Matanuska is a mainline roll-on/roll-off passenger and vehicle ferry serving coastal communities in Alaska as part of the state’s marine highway network.
C. Andrea Gail
The Andrea Gail was a commercial fishing vessel that tragically sank during the 1991 "Perfect Storm" in the North Atlantic, inspiring the book and film of the same name.
D. M/V Columbia
M/V Columbia is a mainline passenger and vehicle ferry that serves as one of the flagship vessels of the Alaska Marine Highway System, operating along coastal routes in Alaska and the Pacific Northwest.
E. M/V Kennicott
M/V Kennicott is a mainline Alaska Marine Highway System ferry that provides passenger, vehicle, and cargo service to coastal communities across Alaska.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Exxon Valdez
Target entity description: Exxon Valdez was a U.S. oil tanker infamous for causing one of the worst environmental disasters in history when it spilled millions of gallons of crude oil off the coast of Alaska in 1989.

A. M/V Lituya
M/V Lituya is a small Alaska Marine Highway System ferry that primarily serves short-haul routes in Southeast Alaska.
B. M/V Matanuska
M/V Matanuska is a mainline roll-on/roll-off passenger and vehicle ferry serving coastal communities in Alaska as part of the state’s marine highway network.
C. Andrea Gail
The Andrea Gail was a commercial fishing vessel that tragically sank during the 1991 "Perfect Storm" in the North Atlantic, inspiring the book and film of the same name.
D. M/V Columbia
M/V Columbia is a mainline passenger and vehicle ferry that serves as one of the flagship vessels of the Alaska Marine Highway System, operating along coastal routes in Alaska and the Pacific Northwest.
E. M/V Kennicott
M/V Kennicott is a mainline Alaska Marine Highway System ferry that provides passenger, vehicle, and cargo service to coastal communities across Alaska.
F. None of above. chosen

Statements (50)

Predicate	Object
instanceOf	oil tanker ⓘ ship ⓘ
beam	approximately 164 feet ⓘ approximately 50 meters ⓘ
builtBy	National Steel and Shipbuilding Company ⓘ
causeOfAccident	failure to properly maneuver around Bligh Reef ⓘ grounding due to navigational errors ⓘ
countryOfRegistry	United States ⓘ linked to: United States of America
dateOfAccident	1989-03-24 ⓘ
enteredService	1986 ⓘ
environmentalImpact	long-term ecological damage to coastal ecosystems ⓘ mass mortality of seabirds, marine mammals, and fish ⓘ widespread marine pollution in Prince William Sound ⓘ
estimatedSpillVolume	approximately 11 million gallons ⓘ approximately 260000 barrels ⓘ
flagAtTimeOfAccident	United States ⓘ linked to: United States of America
homePortAtTimeOfAccident	San Francisco, California ⓘ linked to: San Francisco
IMONumber	8414520 ⓘ
incident	grounding on Bligh Reef ⓘ
laterUse	operated in other regions outside U.S. waters after spill ⓘ
launchDate	1986-12-13 ⓘ
ledTo	Oil Pollution Act of 1990 ⓘ linked to: Oil Pollution Act phase-out of many single-hull tankers in U.S. waters ⓘ stricter U.S. regulations on oil tanker operations ⓘ
legalConsequence	civil litigation against Exxon ⓘ criminal charges against Exxon Shipping Company ⓘ
length	approximately 301 meters ⓘ approximately 987 feet ⓘ
locationOfAccident	Prince William Sound ⓘ off the coast of Alaska ⓘ
maximumSpeed	approximately 16 knots ⓘ
notableFor	Exxon Valdez oil spill ⓘ
operator	Exxon Shipping Company ⓘ
ownedBy	Exxon Corporation ⓘ linked to: Exxon ExxonMobil ⓘ linked to: Exxon
placeBuilt	San Diego, California ⓘ linked to: San Diego, California, United States
placeScrapped	Alang, India ⓘ
propulsion	diesel engine ⓘ
publicPerception	symbol of large-scale environmental disaster ⓘ
renamed	Dong Fang Ocean ⓘ Exxon Mediterranean ⓘ Mediterranean ⓘ Oriental Nicety ⓘ SeaRiver Mediterranean ⓘ
scrapped	2012 ⓘ
shipType	single-hull oil tanker ⓘ
spilledSubstance	crude oil ⓘ
tonnage	approximately 214000 deadweight tons ⓘ
yearLaunched	1986 ⓘ
yearOfAccident	1989 ⓘ