ENSCO DS-4

Mobile Offshore Drilling Unit · Offshore class · USCG Heartland District (CGD-H)

ENSCO DS-4 is a mobile offshore drilling unit. The Coast Guard has recorded 2 inspections since 2011, most recently in May 2014, along with 1 deficiency.

Records from 2011 to 2014. Most recent: inspection, 12 May 2014.

Built: Not recorded
Last inspected: 12 May 2014
Documentation: Not in the documentation file of 10 September 2026
Inspections: 2
Deficiencies: 1 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date

Identity

US Official No.

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IMO number

9459943 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here

Call sign

V7SE8

MISLE id

1106014

Flag

MARSHALL ISLANDS

MMSI

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Maury page id

psix-1106014

Inspections, by type

…administrative events2

Years with a record 2 calendar years (2011–2014)

The 2 inspections in the strip above, split by the kind of activity the US Coast Guard recorded. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

This record may be incomplete: the most recent inspection recorded for this vessel was 12 years ago. Maury shows what the Coast Guard recorded, not whether the vessel has been inspected since, is still in service, or what condition it is in. Coast Guard record current through 13 September 2026, retrieved 18 September 2026 from PSIX. Every field on this page was recorded by the Coast Guard. Records for the Offshore class in Maury's sources begin in 1978.

Documentation record

Tonnage as PSIX records it60162 - Regulatory (Subpart C or D), Gross Ton
96000 - Displacement, Ton

This hull's Official Number is not in the NVDC file dated 10 September 2026 as served by NOAA Fisheries, so no documentation record is shown. Absence from that file is a fact about the file, not about the hull.

Radio station licence

No FCC ship-station licence is recorded against this Official Number in the file of 6 September 2026. That is a fact about the licence file, not about the radio.

A report is not offered for this hull: Its record holds only 1 of the seven kinds of material a report is built from: inspections, deficiencies, operational controls, tow-unit appearances, casualty records, dimensions and documentation. That is a statement about the record, not about the vessel. Reports.

Inspection history · 2

12 May 2014 Administrative Inspection

Administrative · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 4856770

19 January 2011 Administrative Inspection · COC-MODU Renew

Administrative · Marine Safety Unit Galveston · USCG Heartland District (CGD-H) · Activity 4104916

Deficiency record · 1

Personnel › Manning/Qualifications › Minimum Safe Manning

Issued 19 January 2011 Resolved

Provide 1 oiler to meet minimum manning as per flag issued minimum manning document.

Condition: Improper/Lack of Maintenance
Due 31 January 2011
Resolved 24 January 2011
Resolution: Received verification from POC that an additional oiler had boarded the vessel.

Ownership record

The Coast Guard's documentation record for this hull -- the Abstract of Title, with its owners and liens as filed -- is not in PSIX. Ask, and Maury buys it from the National Vessel Documentation Center, files it here with its date, and every reader of this page gets it.