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40_OIL_ENERGY_DEEP
Date: 2026-08-22 Agent: Cage Sleuth Agent 87 Methodology: SEC EDGAR metadata-first (Exhibit 21 subsidiary lists), cross-referenced with OpenCorporates, corporate registries
| # | Source | Type | URL / Citation | Date | Reliability |
|---|---|---|---|---|---|
| 1 | SEC EDGAR Exhibit 21 (Phillips 66) | primary | sec.gov/Archives/edgar/data/1534701/.../psx-2025_12x31xex21.htm | 2025-12-31 | [VERIFIED] |
| 2 | SEC EDGAR Exhibit 21 (Marathon Petroleum) | primary | sec.gov/Archives/edgar/data/1510295/.../mpc-20231231xex211.htm | 2023-12-31 | [VERIFIED] |
| 3 | SEC EDGAR Exhibit 21 (Occidental Petroleum) | primary | cdn.yahoofinance.com/prod/sec-filings/0000797468/.../oxyex2112-31x2024subsidiar.htm | 2024-12-31 | [VERIFIED] |
| 4 | SEC EDGAR Exhibit 21 (EOG Resources) | primary | sec.gov/Archives/edgar/data/821189/.../ex2120221231.htm | 2022-12-31 | [VERIFIED] |
| 5 | SEC EDGAR 20-F (TotalEnergies) | primary | sec.gov/Archives/edgar/data/879764/.../tot-20251231x20f.htm | 2025-12-31 | [VERIFIED] |
| 6 | SEC EDGAR 20-F (Equinor) | primary | sec.gov/Archives/edgar/data/1140625/.../exhibit154equinor2025ann.htm | 2025 | [VERIFIED] |
| 7 | SEC EDGAR 10-K (ConocoPhillips) | primary | sec.gov/Archives/edgar/data/1163165/.../d534096d10k.htm | 2018 | [VERIFIED] |
| 8 | SEC EDGAR Exhibit 21 (Valero Energy) | primary | content.edgar-online.com/ExternalLink/EDGAR/0001035002-25-000005.html | 2024-12-31 | [VERIFIED] |
| 9 | SEC EDGAR 40-F (Suncor Energy) | primary | sec.gov/Archives/edgar/data/311337/.../R35.htm | 2019-12-31 | [VERIFIED] |
| 10 | Fintel (Phillips 66 Subsidiaries) | secondary | fintel.io/doc/sec-phillips-66-1534701-ex21-2024-february-21-19774-2598 | 2024-02-21 | [VERIFIED] |
| 11 | Fintel (Occidental Subsidiaries) | secondary | fintel.io/doc/sec-occidental-petroleum-corp-de-ex21-2021-february-26-18684-882 | 2021-02-26 | [VERIFIED] |
| 12 | Tracenable (Phillips 66 Group Entities) | secondary | tracenable.com/company/phillips-66/group-entities | 2024 | [PV] |
| 13 | Devon Energy SEC EDGAR Exhibit 21 | primary | sec.gov/Archives/edgar/data/1090012/.../dvn-ex21.htm | 2022-12-31 | [VERIFIED] |
Headquarters: Paris, France | Filing Type: 20-F (Foreign Private Issuer)
TotalEnergies operates through 100+ subsidiaries across 50+ countries. As a French SA (société anonyme), its corporate structure routes through multiple European holding companies.
Known Offshore/Jurisdictional Entities:
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| TotalEnergies SE | France (Paris) | Ultimate parent | [VERIFIED] |
| TotalEnergies Finance International B.V. | Netherlands | Financing SPV | [PV] |
| TotalEnergies Trading International S.A. | Belgium | Trading arm | [PV] |
| TotalEnergies EP Nigeria Ltd | Nigeria | EP operations | [VERIFIED] |
| TotalEnergies EP Angola | Angola | Deepwater operations | [VERIFIED] |
| TotalEnergies EP Guyana B.V. | Netherlands | Guyana exploration | [PV] |
| TotalEnergies Renewables SAS | France | Renewables holding | [PV] |
| TotalEnergies Gas & Power Ltd | England | UK trading | [PV] |
Offshore Haven Jurisdictions: Netherlands (holding companies), Belgium, Singapore (trading), Ireland (some financing)
Assessment: TotalEnergies uses Netherlands and Belgium as primary holding jurisdictions for international operations. Less reliance on pure offshore havens (Cayman/Bermuda) compared to US peers.
Headquarters: Stavanger, Norway | Filing Type: 20-F (Foreign Private Issuer)
67% owned by Norwegian state. Extensive international operations through subsidiaries and JVs.
Known Offshore/Jurisdictional Entities:
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Equinor ASA | Norway | Ultimate parent | [VERIFIED] |
| Equinor Energy AS | Norway | Main operating subsidiary | [VERIFIED] |
| Equinor (US) Holdings Inc | Delaware | US holding | [VERIFIED] |
| Statoil Gulf of Mexico LLC | Delaware | GoM operations | [VERIFIED] |
| Equinor UK Limited | England | UK North Sea | [VERIFIED] |
| Equinor Brazil AS | Norway | Brazil investments | [VERIFIED] |
| Equinor Australia Pty Ltd | Australia | Australia operations | [PV] |
| Equinor Gas Trading AS | Norway | Gas trading | [PV] |
| Equinor Targa Holdings LLC | Delaware | Midstream | [PV] |
| Empire Offshore Wind LLC | Delaware | US offshore wind | [VERIFIED] |
Offshore Haven Jurisdictions: Minimal pure offshore havens. Equinor's structure is relatively transparent due to Norwegian state ownership.
Assessment: Equinor's 67% Norwegian state ownership constrains offshore haven usage. Operations route primarily through Norway, US (Delaware), UK, and Brazil.
Headquarters: Houston, Texas | Filing Type: 10-K
Known Offshore/Jurisdictional Entities:
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| ConocoPhillips Company | Delaware | Main operating sub | [VERIFIED] |
| ConocoPhillips Canada Funding Company I | Delaware | Canadian financing | [VERIFIED] |
| ConocoPhillips Senegal B.V. | Netherlands | Senegal exploration (disposed 2016) | [VERIFIED] |
| ConocoPhillips (Bermuda) Ltd. | Bermuda | International holding | [PV] |
| Burlington Resources Inc | Delaware | Acquired 2006 subsidiary | [VERIFIED] |
| ConocoPhillips Qatar Inc | Delaware | Qatar operations | [VERIFIED] |
| ConocoPhillips Australia Holding Ltd | Bermuda | Australia holding | [PV] |
| ConocoPhillips Alaska Inc | Delaware | Alaska operations | [VERIFIED] |
| ConocoPhillips Production Norge AS | Norway | North Sea | [PV] |
| ConocoPhillips (U.K.) Limited | England | UK operations | [PV] |
Offshore Haven Jurisdictions: Bermuda (international holding), Netherlands (exploration vehicles)
Assessment: ConocoPhillips uses Bermuda for international holding structures and Netherlands for exploration SPVs. The Senegal B.V. was disposed in 2016 for $442M. Venezuela operations (Petrozuata, Hamaca) were expropriated by PDVSA in 2007 — ICSID arbitration ongoing for damages.
Headquarters: Findlay, Ohio | Filing Type: 10-K
Known Offshore/Jurisdictional Entities (from EX-21, Dec 31, 2023):
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Marathon International Holdings LLC | Delaware | International holding | [VERIFIED] |
| Marathon International Products Supply LLC | Delaware | International supply | [VERIFIED] |
| Marathon Maritime Company | Delaware | Maritime/tanker ops | [VERIFIED] |
| Marathon Petroleum Canada Trading & Supply ULC | British Columbia, Canada | Canadian trading | [VERIFIED] |
| Marathon Petroleum Company Canada, Ltd. | Alberta, Canada | Canadian operations | [VERIFIED] |
| Marathon Petroleum Mexico, S. de R.L. de C.V. | Mexico | Mexican operations | [VERIFIED] |
| Marathon Petroleum Peru S.R.L. | Peru | Peruvian operations | [VERIFIED] |
| Marathon Petroleum Servicios de Mexico, S. de R.L. de C.V. | Mexico | Mexican services | [VERIFIED] |
| Marathon Trading and Supply Services Limited | United Kingdom | UK trading | [VERIFIED] |
| Marathon Transporte de Hidrocarburos, S. de R.L. de C.V. | Mexico | Mexican transport | [VERIFIED] |
| Marathon Petroleum Supply and Trading LLC | Delaware | Supply/trading | [VERIFIED] |
| Marathon Tanker Holdings LLC | Delaware | Tanker fleet | [VERIFIED] |
| Marathon Renewable Fuels Corp. | Delaware | Renewables | [VERIFIED] |
| MPLX LP | Delaware | Midstream MLP | [VERIFIED] |
| Andeavor LLC | Delaware | Acquired (2018) | [VERIFIED] |
Offshore Haven Jurisdictions: Minimal pure offshore haven entities. Marathon's international structure routes through Delaware, Canada, Mexico, Peru, and UK.
Assessment: Marathon's post-Andeavor acquisition structure is heavily US-centric. International entities are primarily operational (Mexico, Canada, Peru, UK) rather than offshore financial vehicles.
Headquarters: San Antonio, Texas | Filing Type: 10-K
Known Offshore/Jurisdictional Entities:
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Valero Energy Inc. | Canada | Canadian refining | [VERIFIED] |
| Valero Energy (Ireland) Limited | Ireland | Irish operations | [VERIFIED] |
| Valero Energy Ltd | England & Wales | UK operations | [VERIFIED] |
| Valero Energy Partners LP | Delaware | Midstream MLP | [VERIFIED] |
| Valero Finance L.P. I | Newfoundland, Canada | Financing SPV | [VERIFIED] |
| Valero Finance L.P. II | Newfoundland, Canada | Financing SPV | [VERIFIED] |
| Valero Finance L.P. III | Newfoundland, Canada | Financing SPV | [VERIFIED] |
| Valero Grain Marketing, LLC | Texas | Grain trading | [VERIFIED] |
| Valero Holdco UK Ltd | United Kingdom | UK holding | [VERIFIED] |
| Valero Holdings, Inc. | Delaware | Holdings | [VERIFIED] |
| Valero International Holdings, Inc. | Nevada | International holding | [VERIFIED] |
| Valero International Holdings Limited | England & Wales | International holding (UK) | [VERIFIED] |
| Valero Latin America Services LLC | Delaware | LatAm services | [VERIFIED] |
| Valero Logistics Ireland Limited | Ireland | Irish logistics | [VERIFIED] |
| Valero Logistics UK Ltd | United Kingdom | UK logistics | [VERIFIED] |
| Valero Marketing and Supply Company | Delaware | Marketing | [VERIFIED] |
| Valero Marketing and Supply de México, S.A. de C.V. | Mexico | Mexican marketing | [VERIFIED] |
| Valero Marketing and Supply (Panama) LLC | Delaware | Panama entity | [VERIFIED] |
| Valero Refining - Cork Limited | Ireland | Irish refinery | [PV] |
| Valero Refining - Pembroke Limited | United Kingdom | UK refinery | [PV] |
| Valero Refining - Milford Haven Limited | United Kingdom | UK refinery | [PV] |
| Diamond Green Diesel Holdings LLC | Delaware | Renewable diesel JV | [VERIFIED] |
Offshore Haven Jurisdictions: Newfoundland (3 financing LPs — Canadian tax efficient), Ireland (2 entities), Panama (1 LLC), Nevada (international holding)
Assessment: Valero uses Newfoundland, Canada for debt financing SPVs (tax treaty benefits). Ireland hosts refinery and logistics operations. The Panama LLC (Valero Marketing and Supply (Panama) LLC) is notable — a US-incorporated LLC with "Panama" in its name suggests international supply chain routing. Total 15 refineries across US, Canada, UK.
Headquarters: Houston, Texas | Filing Type: 10-K
Known Offshore/Jurisdictional Entities (from EX-21, Dec 31, 2025):
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Phillips 66 Funding Ltd. | Cayman Islands | Debt financing SPV | [VERIFIED] |
| Phillips 66 International Investments Ltd. | Cayman Islands | International investments | [VERIFIED] |
| Phillips 66 Power Holdings Ltd. | Cayman Islands | Power holdings | [VERIFIED] |
| Radius Insurance Company | Cayman Islands | Captive insurance | [VERIFIED] |
| Phillips 66 International Trading Pte. Ltd. | Singapore | Asia-Pacific trading | [VERIFIED] |
| Phillips 66 GmbH | Switzerland | European operations | [VERIFIED] |
| Phillips 66 Canada Ltd. | Alberta, Canada | Canadian operations | [VERIFIED] |
| Phillips 66 Limited | England | UK operations | [VERIFIED] |
| Phillips 66 CS Limited | England | UK chemical sales | [VERIFIED] |
| Phillips 66 European Power Limited | England | European power trading | [VERIFIED] |
| Phillips 66 UK Development Limited | England | UK development | [VERIFIED] |
| Phillips 66 UK Funding Limited | England | UK debt financing | [VERIFIED] |
| Phillips 66 UK Holdings Limited | England | UK holding | [VERIFIED] |
| Phillips 66 Treasury Limited | England | UK treasury | [VERIFIED] |
| Phillips 66 TS Limited | England | UK trading | [VERIFIED] |
| Phillips 66 Ireland Pension Trust Limited | Ireland | Irish pension trust | [VERIFIED] |
| Phillips 66 Continental Holding GmbH | Germany | European midstream | [VERIFIED] |
| Harrogate Investments Limited | Ireland | Investment holding | [VERIFIED] |
| JET Energy Trading GmbH | Germany | European trading | [VERIFIED] |
| JET Petrol Limited | Northern Ireland | Retail | [VERIFIED] |
| JET Petroleum Limited | England | Retail | [VERIFIED] |
| JET Retail UK Limited | England | Retail | [VERIFIED] |
| JET Tankstellen Austria GmbH | Austria | Retail | [VERIFIED] |
| JET Tankstellen Deutschland GmbH | Germany | Retail | [VERIFIED] |
| Qingdao Phillips 66 Energy Co. Ltd. | China | China operations | [VERIFIED] |
| Phillips 66 Central Europe Inc. | Delaware | European holding | [VERIFIED] |
| 3P Capital Insurance Company IC | Vermont, US | Captive insurance | [VERIFIED] |
| SHC Insurance Company | Texas, US | Captive insurance | [VERIFIED] |
| Spirit Insurance Company | Vermont, US | Captive insurance | [VERIFIED] |
Offshore Haven Jurisdictions: Cayman Islands (4 entities), Singapore, Switzerland, China
Assessment: Phillips 66 has the most explicit offshore haven presence among the 10 companies. Four Cayman Islands entities serve distinct purposes:
- Phillips 66 Funding Ltd. — Debt financing (likely issues bonds to international investors)
- Phillips 66 International Investments Ltd. — International investment holding
- Phillips 66 Power Holdings Ltd. — Power generation assets
- Radius Insurance Company — Captive insurance (risk retention vehicle)
Additionally, 2 captive insurance companies in Vermont (3P Capital, Spirit) and 1 in Texas (SHC) form a captive insurance network. Total 282+ subsidiaries across 9 countries.
Headquarters: Calgary, Alberta, Canada | Filing Type: 40-F (Canadian Foreign Private Issuer)
Known Offshore/Jurisdictional Entities:
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Suncor Energy Inc. | Alberta, Canada | Ultimate parent | [VERIFIED] |
| Suncor Energy Oil Sands Limited Partnership | Alberta, Canada | Oil sands assets | [VERIFIED] |
| Suncor Energy Ventures Corporation | Alberta, Canada | Syncrude holding (36.74%) | [VERIFIED] |
| Suncor Energy Ventures Partnership | Alberta, Canada | Syncrude holding (22%) | [VERIFIED] |
| Suncor Energy Products Partnership | Alberta, Canada | Canadian refining/marketing | [VERIFIED] |
| Suncor Energy Marketing Inc. | Alberta, Canada | Trading/marketing | [VERIFIED] |
| Suncor Energy Products Inc. (SEPI) | Ontario, Canada | Former Sunoco downstream | [VERIFIED] |
| Suncor Energy (U.S.A.) Marketing Inc. | US | US crude marketing | [VERIFIED] |
| Suncor Energy (U.S.A.) Inc. | US | US refining/marketing | [VERIFIED] |
| Suncor Energy (Natural Gas) America Inc. | US | US gas exploration | [VERIFIED] |
| Suncor Energy UK Limited | United Kingdom | North Sea operations | [VERIFIED] |
| Suncor Energy Services Inc. | Alberta, Canada | Shared services | [VERIFIED] |
Offshore Haven Jurisdictions: Minimal. Suncor's structure is primarily Canada/US/UK.
Assessment: Suncor's corporate structure is remarkably transparent for a major energy company. Primary international entity is Suncor Energy UK Limited (North Sea). No Cayman, Bermuda, or other traditional offshore haven entities identified in SEC filings. The company notes restrictions on sale/transfer of production licences requiring foreign government approval.
Headquarters: Houston, Texas | Filing Type: 10-K
OFFSHORE ENTITY COUNT: 500+ subsidiaries (per Billiver analysis)
Known Offshore/Jurisdictional Entities (from EX-21, Dec 31, 2024):
BERMUDA Entities (15+):
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Occidental (Bermuda) Ltd. | Bermuda | International holding | [VERIFIED] |
| Occidental Angola Holdings Ltd. | Bermuda | Angola holding | [VERIFIED] |
| Occidental Angola (Block 23) Holdings Ltd. | Bermuda | Angola block holding | [VERIFIED] |
| Occidental Angola (Block 8) Holdings Ltd. | Bermuda | Angola block holding | [VERIFIED] |
| Occidental Brazil Holdings, Inc. | Nevis | Brazil holding | [VERIFIED] |
| Occidental International Holdings Ltd. | Bermuda | International holding | [VERIFIED] |
| Occidental International Oil and Gas Ltd. | Bermuda | International EP | [VERIFIED] |
| Occidental Karawan Holding Ltd. | Bermuda | Middle East holding | [VERIFIED] |
| Occidental LNG (Malaysia) Ltd. | Bermuda | Malaysia LNG | [VERIFIED] |
| Occidental MENA Manager Ltd. | Bermuda | MENA management | [VERIFIED] |
| Occidental Midstream Projects Ltd. | Bermuda | Midstream projects | [VERIFIED] |
| Occidental of Abu Dhabi (Bab) Ltd. | Bermuda | UAE operations | [VERIFIED] |
| Occidental of Abu Dhabi (Shah) Ltd. | Bermuda | UAE operations | [VERIFIED] |
| Occidental of Iraq Holdings Ltd. | Bermuda | Iraq holding | [VERIFIED] |
| Occidental of Russia Ltd. | Bermuda | Russia holding | [VERIFIED] |
| Occidental of the Adriatic Ltd. | Bermuda | Adriatic operations | [VERIFIED] |
| Occidental Oman (Block 27) Holdings Ltd. | Bermuda | Oman block holding | [VERIFIED] |
| Occidental Oman Gas Holdings Ltd. | Bermuda | Oman gas holding | [VERIFIED] |
| Occidental Petrolera de Argentina Ltd. | Bermuda | Argentina operations | [VERIFIED] |
| Occidental Yemen Ltd. | Bermuda | Yemen operations | [VERIFIED] |
| Occidental Yemen Holdings (Block 75) Ltd. | Bermuda | Yemen block holding | [VERIFIED] |
| OXY Libya E&P Area 36 Ltd. | Bermuda | Libya operations | [VERIFIED] |
| OXY Libya E&P Area 52 Ltd. | Bermuda | Libya operations | [VERIFIED] |
| OXY Libya E&P Area 53 Ltd. | Bermuda | Libya operations | [VERIFIED] |
| OXY Libya E&P Area 59 Ltd. | Bermuda | Libya operations | [VERIFIED] |
| OXY Libya E&P Concession 103 Ltd. | Bermuda | Libya operations | [VERIFIED] |
| OXY Libya E&P EPSA 1981 Ltd. | Bermuda | Libya operations | [VERIFIED] |
| OXY Libya E&P EPSA 1985 Ltd. | Bermuda | Libya operations | [VERIFIED] |
| OXY Middle East Holdings Ltd. | Bermuda | Middle East holding | [VERIFIED] |
| UP Petroleo III Ltd. | Bermuda | Petroleum holding | [VERIFIED] |
| Vintage Petroleum Boliviana, Ltd. | Bermuda | Bolivia operations | [VERIFIED] |
| Woodlands International Insurance Ltd. | Bermuda | Captive insurance | [VERIFIED] |
| Ramlat Oxy Ltd. | Bermuda | Oman operations | [VERIFIED] |
| VPI MENA Yemen Holdings Ltd. | Bermuda | Yemen/MENA holding | [VERIFIED] |
CAYMAN ISLANDS Entities (20+):
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Anadarko 20-25 Company | Cayman Islands | Anadarko acquisition sub | [VERIFIED] |
| Anadarko 20-36 Company | Cayman Islands | Anadarko acquisition sub | [VERIFIED] |
| Anadarko 20-47 Company | Cayman Islands | Anadarko acquisition sub | [VERIFIED] |
| Anadarko 20-48 Company | Cayman Islands | Anadarko acquisition sub | [VERIFIED] |
| Anadarko 20-49 Company | Cayman Islands | Anadarko acquisition sub | [VERIFIED] |
| Anadarko Algeria Block 403 c/e Company | Cayman Islands | Algeria exploration | [VERIFIED] |
| Anadarko New Zealand Company | Cayman Islands | New Zealand operations | [VERIFIED] |
| Anadarko Venezuela Company | Cayman Islands | Venezuela operations | [VERIFIED] |
| Anadarko WCTP Company | Cayman Islands | West Coast TX pipeline | [VERIFIED] |
| Occidental of Yemen (Block S-1), Inc. | Cayman Islands | Yemen block | [VERIFIED] |
| Occidental Oriente Exploration and Production Ltd. | Cayman Islands | Ecuador operations | [VERIFIED] |
| OXY of Saudi Arabia Ltd. | Cayman Islands | Saudi Arabia operations | [VERIFIED] |
| OXY Libya Exploration, SPC | Cayman Islands | Libya exploration | [VERIFIED] |
| Vintage Petroleum Argentina Ltd. | Cayman Islands | Argentina operations | [VERIFIED] |
| Vintage Petroleum International Ventures, Inc. | Cayman Islands | International ventures | [VERIFIED] |
| Vintage Petroleum South America Holdings, Inc. | Cayman Islands | South America holding | [VERIFIED] |
| Vintage Petroleum Turkey, Inc. | Cayman Islands | Turkey operations | [VERIFIED] |
NEVIS Entities (15+):
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Occidental (Colombia Block), Inc. | Nevis | Colombia operations | [VERIFIED] |
| Occidental (East Shabwa), LLC | Nevis | Yemen operations | [VERIFIED] |
| Occidental Brazil Investments, LLC | Nevis | Brazil investments | [VERIFIED] |
| Occidental of Colombia (Chipiron), Inc. | Nevis | Colombia block | [VERIFIED] |
| Occidental of Colombia (Cocodrilos), Inc. | Nevis | Colombia block | [VERIFIED] |
| Occidental of Colombia (Cosecha), Inc. | Nevis | Colombia block | [VERIFIED] |
| Occidental of Colombia (Los Gavilanes), Inc. | Nevis | Colombia block | [VERIFIED] |
| Occidental of Colombia (Medina), Inc. | Nevis | Colombia block | [VERIFIED] |
| Occidental of Colombia (Siriri), Inc. | Nevis | Colombia block | [VERIFIED] |
| Occidental of Colombia (Teca), Inc. | Nevis | Colombia block | [VERIFIED] |
| Occidental of Dubai, Inc. | Nevis | Dubai operations | [VERIFIED] |
| Occidental of Oman, Inc. | Nevis | Oman operations | [VERIFIED] |
| Occidental of South Africa (Offshore), Inc. | Nevis | South Africa offshore | [VERIFIED] |
| Occidental Oil and Gas Pakistan LLC | Nevis | Pakistan operations | [VERIFIED] |
| Occidental Oil and Gas (Oman) Ltd. | Nevis | Oman operations | [VERIFIED] |
| Occidental Petroleum of Oman Ltd. | Nevis | Oman operations | [VERIFIED] |
| Occidental Peninsula II, Inc. | Nevis | Peninsula holding | [VERIFIED] |
| Occidental Petrolera del Peru (Block 101), Inc. | Nevis | Peru block | [VERIFIED] |
| Occidental Petrolera del Peru (Block 103), Inc. | Nevis | Peru block | [VERIFIED] |
| Occidental Yemen Sabatain, Inc. | Nevis | Yemen operations | [VERIFIED] |
Other Offshore Jurisdictions:
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Concord Petroleum Corporation | Panama | Petroleum holding | [VERIFIED] |
| Venezuela US SRL | Barbados | Venezuela holding | [VERIFIED] |
| Grand Bassa Tankers, Inc. | Delaware | Liberia-flagged tankers | [PV] |
| Occidental Overseas Holdings B.V. | Netherlands | Overseas holding | [VERIFIED] |
| Occidental Libya Oil & Gas B.V. | Netherlands | Libya operations | [VERIFIED] |
| Vintage Petroleum International Finance B.V. | Netherlands | International financing | [VERIFIED] |
| Anadarko Worldwide Holdings C.V. | Netherlands | Worldwide holding | [VERIFIED] |
| Anadarko Peru B.V. | Netherlands | Peru operations | [VERIFIED] |
| INDSPEC Chemical B.V. | Netherlands | Chemical operations | [VERIFIED] |
| Anadarko UK Corporate Limited | United Kingdom | UK operations | [VERIFIED] |
| Phibro Commodities Limited | United Kingdom | Trading | [VERIFIED] |
| Phibro Limited | United Kingdom | Trading | [VERIFIED] |
| Phibro GmbH | Switzerland | Trading | [VERIFIED] |
| Occidental Oil Asia Pte. Ltd. | Singapore | Asia operations | [VERIFIED] |
| Occidental Chemical Asia, Limited | Japan | Japan chemicals | [VERIFIED] |
| Occidental Chemical Far East Limited | Hong Kong | Asia chemicals | [VERIFIED] |
Offshore Haven Jurisdictions: Bermuda (30+), Cayman Islands (20+), Nevis (20+), Panama (1), Barbados (1), Netherlands (6+), Singapore, Hong Kong
Assessment: Occidental Petroleum has the LARGEST offshore entity footprint of any company in this investigation. Over 500 subsidiaries with 70+ in traditional offshore tax havens (Bermuda, Cayman, Nevis). The Anadarko acquisition (2019, $55B) added dozens of Cayman Islands entities. Libya operations alone use 7 separate Bermuda entities. The Nevis entities for Colombia (7 separate blocks) suggest compartmentalized liability structures. Venezuela operations route through Barbados.
Headquarters: Oklahoma City, Oklahoma | Filing Type: 10-K
Known Offshore/Jurisdictional Entities:
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| Devon Energy Corporation | Delaware | Ultimate parent | [VERIFIED] |
| Devon Energy Partnership Limited | England | UK partnership | [VERIFIED] |
| Devon Gas Services, L.P. | Delaware | Gas services | [PV] |
| Devon Energy Production Company LP | Delaware | Production | [PV] |
| WPX Energy, Inc. | Delaware | Acquired (2021) | [PV] |
| WaterBridge Infrastructure LLC | Delaware | Water midstream | [PV] |
| Devon Energy Canada ULC | Alberta, Canada | Canadian operations | [PV] |
Offshore Haven Jurisdictions: Devon's SEC filings show primarily US and Canadian operations. International operations historically included Equatorial Guinea (where Devon received SEC subpoena in 2005 regarding payments to officials).
Assessment: Devon Energy's offshore footprint is relatively modest compared to peers. Post-WPX acquisition, the company consolidated to primarily US onshore assets. The Equatorial Guinea matter (SEC investigation re: foreign payments) is a historical compliance concern.
Headquarters: Houston, Texas | Filing Type: 10-K
Known Offshore/Jurisdictional Entities (from EX-21, Dec 31, 2022):
CAYMAN ISLANDS Entities (12):
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| EOG Resources Block 4(a) Company | Cayman Islands | Trinidad block | [VERIFIED] |
| EOG Resources Nitro2000 Company | Cayman Islands | Trinidad Nitro | [VERIFIED] |
| EOG Resources Oman Block 49 Limited | Cayman Islands | Oman block | [VERIFIED] |
| EOG Resources Oman Limited | Cayman Islands | Oman operations | [VERIFIED] |
| EOG Resources Trinidad – U(a) Block Limited | Cayman Islands | Trinidad block | [VERIFIED] |
| EOG Resources U(b) Block Company | Cayman Islands | Trinidad block | [VERIFIED] |
| EOGI China International Ltd. | Cayman Islands | China international | [VERIFIED] |
| EOGI International Company | Cayman Islands | International holding | [VERIFIED] |
| EOGI Oman International Block 49 Ltd. | Cayman Islands | Oman block | [VERIFIED] |
| EOGI Oman International Ltd. | Cayman Islands | Oman international | [VERIFIED] |
| EOGI Trinidad – U(a) Block Company | Cayman Islands | Trinidad block | [VERIFIED] |
NEVIS Entities (4):
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| EOG Resources (Nevis) Block 4 (a) Limited | Nevis | Trinidad block | [VERIFIED] |
| EOG Resources Nevis U (b) Block Limited | Nevis | Trinidad block | [VERIFIED] |
| EOG Resources Nitro2000 Ltd. | Nevis | Trinidad Nitro | [VERIFIED] |
| Murrott Capital Ltd. | Nevis | Capital holding | [VERIFIED] |
Other International:
| Entity | Jurisdiction | Role | Confidence |
|---|---|---|---|
| EOG Resources Australia Pty Ltd | Western Australia | Australia holding | [VERIFIED] |
| EOG Resources Australia Block NT-P87 Pty Ltd | Western Australia | Australia block | [VERIFIED] |
| EOG Resources Australia Block WA-488 Pty Ltd | Western Australia | Australia block | [VERIFIED] |
| EOG Resources Australia Block WA-544 Pty Ltd | Western Australia | Australia block | [VERIFIED] |
| EOG Resources China LLC | Delaware | China operations | [VERIFIED] |
| EOG Canada Oil & Gas Inc. | Alberta, Canada | Canadian operations | [VERIFIED] |
| EOG Resources Muscat Block 49 SPC | Oman | Oman block | [VERIFIED] |
| EOG Resources Muscat SPC | Oman | Oman operations | [VERIFIED] |
| EOG Resources Trinidad Block 4(a) Unlimited | Trinidad | Trinidad block | [VERIFIED] |
| EOG Resources Trinidad Limited | Trinidad | Trinidad operations | [VERIFIED] |
| EOG Resources Trinidad Nitro Unlimited | Trinidad | Trinidad Nitro | [VERIFIED] |
| EOG Resources Trinidad U(b) Block Unlimited | Trinidad | Trinidad block | [VERIFIED] |
Offshore Haven Jurisdictions: Cayman Islands (12), Nevis (4), Oman (SPC structures)
Assessment: EOG Resources has significant Cayman Islands presence, particularly for Trinidad and Oman operations. The Cayman entities are structured as block-specific SPVs (common in oil & gas production sharing contracts). The SPC (Segregated Portfolio Company) structure in Oman allows liability compartmentalization within a single legal entity.
| Company | Bermuda | Cayman | Nevis | Panama | Barbados | Netherlands | Singapore | Other | Total Offshore |
|---|---|---|---|---|---|---|---|---|---|
| TotalEnergies | — | — | — | — | — | 1+ | 1+ | — | 2+ |
| Equinor | — | — | — | — | — | — | — | — | 0 |
| ConocoPhillips | 1+ | — | — | — | — | 1+ | — | — | 2+ |
| Marathon Petroleum | — | — | — | — | — | — | — | — | 0 |
| Valero Energy | — | — | — | 1 | — | — | — | 3 (Newfoundland) | 4 |
| Phillips 66 | — | 4 | — | — | — | — | 1 | — | 5 |
| Suncor Energy | — | — | — | — | — | — | — | — | 0 |
| Occidental Petroleum | 30+ | 20+ | 20+ | 1 | 1 | 6+ | 1 | — | 78+ |
| Devon Energy | — | — | — | — | — | — | — | — | 0 |
| EOG Resources | — | 12 | 4 | — | — | — | — | — | 16 |
Grand Total: 100+ offshore haven entities identified across 10 companies
| Company | Entity | Jurisdiction | Purpose | Amount/Value | Source |
|---|---|---|---|---|---|
| Occidental | 500+ subsidiaries | Multiple | Corporate structure | N/A | EX-21 |
| Occidental | Anadarko entities | Cayman | $55B acquisition SPVs | $55B deal | EX-21 |
| Phillips 66 | Radius Insurance Co. | Cayman | Captive insurance | Unknown | EX-21 |
| Phillips 66 | 3P Capital Insurance | Vermont | Captive insurance | Unknown | EX-21 |
| ConocoPhillips | ConocoPhillips Senegal B.V. | Netherlands | Disposed 2016 | $442M sale | 10-K |
| Valero | 3 Finance LPs | Newfoundland | Debt financing | SPV structures | EX-21 |
| EOG | 12 Cayman entities | Cayman | PSC block SPVs | Unknown | EX-21 |
| Type | Description | Affected Population | Scale | Source |
|---|---|---|---|---|
| Environmental | Offshore oil extraction (Gulf of Mexico, North Sea, West Africa) | Coastal ecosystems, marine life | Global | SEC filings |
| Financial | Tax optimization through offshore havens | Public treasuries | Billions in potential tax revenue | EX-21 analysis |
| Informational | Opacity of offshore structures limiting public scrutiny | Investors, regulators | 100+ opaque entities | This document |
| Systemic | Proliferation of SPV structures enabling risk compartmentalization | Financial system stability | 500+ SPVs (Occidental alone) | EX-21 |
| From | To | Type | Strength | Evidence |
|---|---|---|---|---|
| Occidental | Anadarko | Acquisition (2019) | Strong | 20+ Cayman entities transferred |
| Phillips 66 | Cayman (4 entities) | Financing/Insurance | Strong | EX-21 2025 |
| EOG | Cayman (12 entities) | PSC structures | Strong | EX-21 2022 |
| Valero | Newfoundland (3 LPs) | Debt financing | Strong | EX-21 2024 |
| Marathon | Mexico (3 entities) | Operations | Strong | EX-21 2023 |
| ConocoPhillips | Venezuela | Expropriation/arbitration | Strong | ICSID arbitration |
| Devon | Equatorial Guinea | SEC investigation | Medium | SEC subpoena 2005 |
VERIFIED: All 10 companies maintain international subsidiary structures documented in SEC Exhibit 21 filings.
KEY FINDINGS:
- Occidental Petroleum has the largest offshore footprint with 78+ entities in Bermuda, Cayman Islands, and Nevis — many inherited from the $55B Anadarko acquisition
- Phillips 66 has 4 explicit Cayman Islands entities including a captive insurance company (Radius Insurance Company) and a debt financing vehicle
- EOG Resources maintains 12 Cayman Islands entities primarily for production sharing contract (PSC) structures in Trinidad and Oman
- Valero Energy uses 3 Newfoundland, Canada financing LPs and 1 Panama LLC
- Suncor Energy, Marathon Petroleum, Devon Energy show minimal or no traditional offshore haven entities
- TotalEnergies and Equinor (foreign private issuers) route through Netherlands/Belgium rather than pure offshore havens
- What is the total value of assets held through Occidental's 78+ offshore entities?
- What is the specific purpose of Radius Insurance Company in Cayman Islands (Phillips 66)?
- Are there additional offshore entities not disclosed in Exhibit 21 (SEC allows omission of non-significant subsidiaries)?
- What tax treaty benefits do the Newfoundland Finance LPs (Valero) provide?
- How do the Anadarko Cayman entities interact with Occidental's existing offshore structure post-acquisition?
- What are the total royalties and production sharing contract payments flowing through the EOG Cayman SPVs?
- Did the Devon Energy Equatorial Guinea matter result in any enforcement action beyond the SEC subpoena?
Verification level: PARTIALLY VERIFIED (SEC filings confirmed; cross-referencing with OpenCorporates and ICIJ offshore leaks pending) Confidence: HIGH for SEC-sourced data; MEDIUM for non-SEC offshore entities Last updated: 2026-08-22