DEEPWATER THALASSA

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

DEEPWATER THALASSA is a mobile offshore drilling unit. The Coast Guard has recorded 21 inspections since 2016, most recently in February 2026, along with 1 deficiency.

Records from 2016 to 2026. Most recent: inspection, 23 February 2026.

Built: Not recorded
Last inspected: 23 February 2026
Documentation: Not in the documentation file of 10 August 2026
Inspections: 21
Deficiencies: 1 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date

Identity

—

9675169

V7BE2

1375784

Flag

MARSHALL ISLANDS

Maury page id

psix-1375784

Coast Guard record current through 23 August 2026, retrieved 5 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 2016.

Inspections, by type

Recorded inspections21

…physical examinations6

…administrative events1

…with no type recorded11

Years with a record 10 calendar years (2016–2026)

Every line above is a count of records the US Coast Guard wrote, or a date it recorded. The counts in the strip above are the same counts; this table splits the inspections by the kind of activity recorded. A blank resolution means none was recorded in this data; it does not establish that a deficiency is outstanding. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

Documentation record

Tonnage as PSIX records it21029 - Convention (Subpart B), Net Ton
70095 - Convention (Subpart B), Gross Ton

This hull's Official Number is not in the NVDC file dated 10 August 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.

Vessel history report

A report is not offered for this hull. Its record holds only 2 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. What a sparse-record report looks like.

Inspection history · 21

23 February 2026 Administrative Inspection

Administrative · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 8314300

10 August 2025 Type not recorded

No type recorded · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 8269671

24 July 2025 Type not recorded

No type recorded · Marine Safety Unit Brownsville · USCG Heartland District (CGD-H) · Activity 8197432

1 July 2025 In-Service Inspection · Administrative Inspection

Physical examination · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 8190876

1 September 2023 In-Service Inspection

Physical examination · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 7782340

26 July 2023 COC-MODU Renew

Type not classified · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 7756894

1 August 2022 COC-MODU Renew

Type not classified · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 7564283

5 August 2021 ISPS Exam · Ballast Water Examination · COC-MODU Annual

Physical examination · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 7281549

15 June 2020 ISPS Exam · COC-MODU Renew

Physical examination · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 6978042

15 October 2019 Type not recorded

No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 6852036

10 June 2019 Type not recorded

No type recorded · Marine Safety Unit Brownsville · USCG Heartland District (CGD-H) · Activity 6745605

12 May 2019 Type not recorded

No type recorded · Marine Safety Unit Brownsville · USCG Heartland District (CGD-H) · Activity 6688971

20 March 2019 COC-MODU Annual · ISPS II Exam

Physical examination · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 6651140

6 March 2019 Type not recorded

No type recorded · Marine Safety Unit Brownsville · USCG Heartland District (CGD-H) · Activity 6716508

4 February 2019 Type not recorded

No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 6627944

26 November 2018 Type not recorded

No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 6594844

4 November 2018 Type not recorded

No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 6589430

12 February 2018 Type not recorded

No type recorded · Sector Mobile · USCG Heartland District (CGD-H) · Activity 6358594

3 December 2017 COC-MODU Renew · PII Safety Exam · Ballast Water Examination

Physical examination · Marine Safety Unit Port Arthur · USCG Heartland District (CGD-H) · Activity 6333309

12 February 2017 Type not recorded

No type recorded · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6096842

9 November 2016 COC-MODU Annual

Type not classified · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 6072785

Deficiency record · 1

Documentation › Manuals/Policy Documentation › Procedures and Arrangements Manual (NLS)

Issued 9 November 2016 Resolved

FF maintenance system, repairs and inspections found missin procedures IAW MSC./Circ. 1432

Condition: Improper/Lack of Maintenance
Due 9 December 2016
Resolved 6 December 2016
Resolution: Company provided proof of documentation

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.