0Suppliers
14Customers
3Debt Items
20Related Chains

Source-Backed Evidence Depth

Transocean Ltd. (RIG) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.

18Total relationships
5Distinct source URLs
11High confidence
0.821Average confidence
2026-09-13Latest database update
ChainSifter does not infer unreported suppliers, customers, ownership, acquisitions, debt exposure, revenue dependency, or future supply-chain events on this public page.

Transocean Ltd. Suppliers

No suppliers on recordTransocean Ltd. has not yet been matched to upstream suppliers in our database, or is still being processed.

Transocean Ltd. Customers

TickerNameConfidenceEvidence
EQUINOR-ASA EQUINOR-ASA 92% For the year ended December 31, 2024, our most significant customers were Shell plc (together with its affiliates, "Shell"), Petróleo Brasileiro S.A. (together with its affiliates, "Petrobras") and E…
PETR-LEO-BRASILEIRO-S-A PETR-LEO-BRASILEIRO-S-A 92% For the year ended December 31, 2024, our most significant customers were Shell plc (together with its affiliates, "Shell"), Petróleo Brasileiro S.A. (together with its affiliates, "Petrobras") and E…
PETROBRAS PETROBRAS 92% The extension is expected to contribute approximately $445 million in incremental backlog and commit the rig through November 2030.
SHEL Shell plc 92% Reciprocal relationship from SHEL graph: Reciprocal relationship from RIG graph: For the year ended December 31, 2024, our most significant customers were Shell plc (together with its affiliates, "Sh…
SHELL-PLC SHELL-PLC 92% For the year ended December 31, 2024, our most significant customers were Shell plc (together with its affiliates, "Shell"), Petróleo Brasileiro S.A. (together with its affiliates, "Petrobras") and E…
STOHF STOHF 92% Reciprocal relationship from STOHF graph: Reciprocal relationship from RIG graph: For the year ended December 31, 2024, our most significant customers were Shell plc (together with its affiliates, "S…
V-R-ENERGI-ASA V-R-ENERGI-ASA 92% The Transocean Barents was awarded a 1,095-day contract with Vår Energi ASA in Norway at a rate of $450,000 per day, excluding additional services.
SHEL Shell plc 72% 31, 2024 and 2023, we received an aggregate cash payment of $ million and $ million, respectively, for services and equipment provided to, and prior to our acquisition of, Orion. In the years ended D…
STOHF STOHF 72% 31, 2024 and 2023, we received an aggregate cash payment of $ million and $ million, respectively, for services and equipment provided to, and prior to our acquisition of, Orion. In the years ended D…
VAL Valaris Limited 72% and work crews to drill oil and gas wells. We specialize in technically demanding regions of the global offshore drilling business with a particular focus on ultra-deepwater and harsh environment dri…
VAL Valaris Limited 72% Reciprocal relationship from VAL graph: Reciprocal relationship from RIG graph: and work crews to drill oil and gas wells. We specialize in technically demanding regions of the global offshore drilli…
GLOBAL-SEA-MINERAL-RESOURCES GLOBAL-SEA-MINERAL-RESOURCES 62% well planning and smart well monitoring. We also have six harsh environment floaters and two ultra-deepwater floaters equipped with an automated drilling control system. Since 2022, we have deployed …
ORION-HOLDINGS ORION-HOLDINGS 62% and work crews to drill oil and gas wells. We specialize in technically demanding regions of the global offshore drilling business with a particular focus on ultra-deepwater and harsh environment dri…
WASTE-DISPOSAL-INC WASTE-DISPOSAL-INC 62% As of March 31, 2026, the drilling contract with the longest expected remaining duration, excluding unexercised options, extends through November 2030. Disaggregation — Our contract drilling revenues…

Transocean Ltd. Debt Obligations

InstrumentDescriptionConfidenceEvidence
RIG-DEBT-12183 Xbrl Convertible 90% xbrl convertible detail from xbrl 2023-12-31.
RIG-DEBT-12182 Warrants outstanding: 22200000 90% xbrl warrant detail from xbrl 2026-03-13.
RIG-DEBT Debt stack $8.1B 90% Market cache reports total debt of $8.1B.

Transocean Ltd. Acquisitions

No acquisitions on recordNo completed or pending acquisitions found in our database for Transocean Ltd..

Transocean Ltd. Ownership

HolderNameConfidenceEvidence
RIG-OWNER-VANGUARD-CAPITAL-MANAGEMENT-LLC VANGUARD CAPITAL MANAGEMENT LLC 90% 13F overlay lists VANGUARD CAPITAL MANAGEMENT LLC as top holder; 544 tracked holders.

Transocean Ltd. Extended Supply Chain Network

TickerNameChain IndexHopsRelationship Types
STOHF Equinor ASA 100.00 1 ['customer']
RYDAF Shell plc 100.00 2
KNOP KNOT Offshore Partners LP 100.00 2
SHIP Seanergy Maritime Holdings Corp 100.00 2
SHEL Shell plc 100.00 1 ['customer']
NE Noble Corporation plc 100.00 2
NEU NewMarket Corporation 100.00 2
NGG National Grid plc 100.00 2
EIPAF Eni S.p.A. 100.00 2
EQNR Equinor ASA 100.00 2
COP ConocoPhillips 100.00 2
ET Energy Transfer LP 100.00 2
NGGTF National Grid plc 100.00 2
CNQ Canadian Natural Resources Limited 100.00 2
OII Oceaneering International, Inc. 50.00 2
BORR Borr Drilling Limited 50.00 2
CSW CSW Industrials, Inc. 50.00 2
CAAP Corporación América Airports S.A. 50.00 2
CLMT Calumet, Inc. 50.00 2
LPG Dorian LPG Ltd. 50.00 2
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RIG
Unlock RIG Supply Chain Data
Verified relationships include:
EQUINOR-ASAEQUINOR-ASACustomer92%
PETR-LEO-BRASILEIRO-S-APETR-LEO-BRASILEIRO-S-ACustomer92%
+14 more relationships locked
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