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Edison Chouest Offshore

family of marine transportation companies

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 11, 2026
Entity authorityQ5338367
Source-derived summary

Edison Chouest Offshore (ECO), which started as Edison Chouest Boat Rentals in 1960, is a family of companies in the marine transportation business based in Cut Off, Louisiana. ECO owns and operates a fleet of platform supply vessels, Subsea Construction / IMR vessels, a Riserless Light Well Intervention vessel, Anchor handling tug supply vessels, Oil Spill Response Vessels, and Well Stimulation Vessels, as well as an independently owned fleet of Research Vessels and Ice Breakers.

Edison Chouest Offshore operates five shipyards:

North American Shipbuilding (NAS) in Larose, Louisiana was founded in 1974 on the Dixie Delta Canal running to Lake Salvador. 29.585°N 90.375°W / 29.585; -90.375

Gulf Ship LLC, in Gulfport, Mississippi, in 2007 30.427°N 89.0455°W / 30.427; -89.0455

Tampa Ship, the former Tampa Bay Shipbuilding, founded in 2008. 27.926°N 82.444°W / 27.926; -82.444

La Ship, in Houma, Louisiana, founded in 2011 29.547°N 90.7019°W / 29.547; -90.7019

North American Fabricators, (NAF), in Houma, Louisiana, founded in 1996 (now part of LaShip) 29.5699°N 90.700°W / 29.5699; -90.700

Estaleiro NavShip, in Navegantes, Brazil at Superporto do Açu on the Itajaí-Açu river founded in 2005 26.878°S 48.689°W / -26.878; -48.689

ECO's offshore vessels range from 109 feet to 525 feet.

Edison Chouest Offshore has an office in Houston Texas and has a fleet of over 200 vessels some with Remotely operated underwater vehicles (ROV-subsea).

Edison Chouest operates the Edison Chouest Offshore Training Center.

Port services

Port Fourchon C-Port and C-Logistics, loading and unloading, dockside services.

C-Innovation, riserless light well intervention (RLWI) services.

Martin Terminal large staging lot.

Editorial summary

Begin with the source’s own compact description: “Edison Chouest Offshore” is family of marine transportation companies. The dossier treats that line as a proposition to test through Edison, Chouest and Offshore, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1960, 1974, 2007, 2008—that can be checked directly. The linked authority record independently contributes the date 1960. For this dossier, Edison, Chouest and Offshore is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “family of marine transportation companies” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q5338367. 1 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1960, 1974, 2007 and 2008.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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  1. Establish the record: confirm the title “Edison Chouest Offshore”, its source revision and the description used here.
  2. Expand the search: follow Edison Chouest Offshore primary sources, Edison Chouest Offshore archive and Edison research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

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Source & attribution

This entry incorporates text from Edison Chouest Offshore” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.