NYSE, NYSE · Drilling Oil & Gas Wells
131 entities across 30 jurisdictions, 56 in offshore financial centres. Read directly from the company’s own 10-K EX-21 filed 2026-02-20 — see the exhibit.
Which other public companies file entities in the same places:
| Entity | Jurisdiction | Note |
|---|---|---|
| Alpha Achiever Company S.à r.l. | Luxembourg | offshore centre |
| Alpha Admiral Company S.à r.l. | Luxembourg | offshore centre |
| Alpha Archer Company S.à r.l. | Luxembourg | offshore centre |
| Alpha International Drilling Company S.à r.l. | Luxembourg | offshore centre |
| Alpha Leasing Drilling Limited | Mauritius | offshore centre |
| Alpha Offshore Drilling Services Company | Cayman Islands | offshore centre |
| Alpha Orca Company S.à r.l. | Luxembourg | offshore centre |
| ATLANTIC MARITIME SERVICES LLC | Delaware | |
| Atwood Advantage S.à r.l. | Luxembourg | offshore centre |
| Atwood Beacon S.à r.l. | Luxembourg | offshore centre |
| Atwood Oceanics (M) Sdn. Bhd. | Malaysia | |
| Atwood Offshore Drilling Limited | Hong Kong | |
| Atwood Offshore Worldwide Limited | Cayman Islands | offshore centre |
| Aurora Offshore Services Gmbh | Germany | |
| Clearways Offshore Drilling Sdn. Bhd. | Malaysia | |
| Drillquest Offshore Company | Cayman Islands | offshore centre |
| Durand Maritime S.A.S. | France | |
| ENSCO (Bermuda) Limited | Bermuda | offshore centre |
| Ensco (Thailand) Limited | Thailand | |
| ENSCO Arabia Company Limited | Saudi Arabia | |
| ENSCO Asia Company LLC | Texas | |
| ENSCO Asia Pacific Pte. Limited | Singapore | |
| ENSCO Corporate Resources LLC | Delaware | |
| Ensco Deepwater Drilling Limited | England and Wales | |
| Ensco Deepwater USA II LLC | Delaware | |
| Ensco do Brasil Petróleo e Gás Ltda. | Brazil | |
| ENSCO Drilling Company (Nigeria) Ltd. | Nigeria | |
| Ensco Endeavors Limited | Cayman Islands | offshore centre |
| Ensco France S.A.S. | France | |
| ENSCO Gerudi (M) Sdn. Bhd. | Malaysia | |
| ENSCO Global GmbH | Switzerland | |
| Ensco Global II Ltd. | Cayman Islands | offshore centre |
| Ensco Holdco Limited | England and Wales | |
| ENSCO Holding Company | Delaware | |
| ENSCO Holland B.V. | Netherlands | |
| Ensco Intercontinental GmbH | Switzerland | |
| Ensco International Management GP LLC | Delaware | |
| Ensco International Management LP LLC | Delaware | |
| ENSCO Investments LLC | Nevada | |
| Ensco Mexico Services, S. de R.L. de C.V. | Mexico | |
| Ensco Ocean 1 Company | Cayman Islands | offshore centre |
| Ensco Ocean 2 Company | Cayman Islands | offshore centre |
| ENSCO Oceanics Company LLC | Delaware | |
| ENSCO Oceanics International Company | Cayman Islands | offshore centre |
| ENSCO Offshore International S.à r.l. | Luxembourg | offshore centre |
| Ensco Offshore International Company S.à r.l. | Luxembourg | offshore centre |
| Ensco Offshore International LLC | Delaware | |
| ENSCO Offshore International Holdings Limited | Cayman Islands | offshore centre |
| ENSCO Offshore LLC | Delaware | |
| Ensco Offshore Petróleo e Gás Ltda. | Brazil | |
| ENSCO Offshore U.K. Limited | England and Wales | |
| ENSCO Overseas Limited | Cayman Islands | offshore centre |
| ENSCO Services Limited | England and Wales | |
| ENSCO Services LLC | Delaware | |
| Ensco Transcontinental I LLC | Nevada | |
| Ensco Transcontinental I LP | England and Wales | |
| Ensco Transcontinental II LLC | Nevada | |
| Ensco Transcontinental II LP | England and Wales | |
| ENSCO U.K. Limited | England and Wales | |
| Ensco U.K. Limited (Australia PE) | England and Wales | |
| Ensco UK Drilling Limited | England and Wales | |
| Ensco Universal Holdings II Ltd. | Cayman Islands | offshore centre |
| ENSCO Universal Limited | England and Wales | |
| Ensco Vistas Limited | Cayman Islands | offshore centre |
| ENSCO Worldwide GmbH | Switzerland | |
| Forasub B.V. | Netherlands | |
| Forinter Limited | Jersey | offshore centre |
| Great White Shark Limited | Gibraltar | offshore centre |
| Green Turtle S.à r.l. | Luxembourg | offshore centre |
| International Technical Services LLC | Delaware | |
| Marine Blue Limited | Gibraltar | offshore centre |
| Mukamala Oil Field Services Limited | Saudi Arabia | |
| Ocean Deep Drilling ESV Nigeria Limited | Nigeria | |
| Offshore Drilling Services LLC | Delaware | |
| P.T. ENSCO Sarida Offshore | Indonesia | |
| Petroleum International Pte. Ltd. | Singapore | |
| Pride Arabia Co. Ltd. | Saudi Arabia | |
| Pride Foramer S.A.S. | France | |
| Pride Forasol Drilling Nigeria Ltd. | Nigeria | |
| Pride Forasol S.A.S. | France | |
| Pride Global II Ltd. | British Virgin Islands | offshore centre |
| Pride Global Offshore Nigeria Limited | Nigeria | |
| Pride International LLC | Delaware | |
| Pride International Management Company LP | Texas | |
| PT Alpha Offshore Drilling | Indonesia | |
| PT Pentawood Offshore Drilling | Indonesia | |
| Ralph Coffman Limited | Gibraltar | offshore centre |
| Ralph Coffman Luxembourg S.à r.l. | Luxembourg | offshore centre |
| RD International Services Pte. Ltd. | Singapore | |
| RDC Arabia Drilling, Inc. | Cayman Islands | offshore centre |
| RDC Holdings Luxembourg S.à r.l. | Luxembourg | offshore centre |
| Rowan 350 Slot Rigs, LLC | Delaware | |
| Rowan Companies, LLC | Delaware | |
| Rowan Deepwater Drilling (Gibraltar) Limited | Gibraltar | offshore centre |
| Rowan Drilling (Gibraltar) Limited (Indonesia PE) | Indonesia | |
| Rowan Drilling (U.K.) Limited | Scotland | |
| Rowan Drilling Cyprus Limited | Cyprus | offshore centre |
| Rowan Drilling Services Limited | Gibraltar | offshore centre |
| Rowan Drilling Services Nigeria Limited | Nigeria | |
| Rowan Drilling S.à r.l. | Luxembourg | offshore centre |
| Rowan Egypt Petroleum Services L.L.C. | Egypt | |
| Rowan Financial Holdings S.à r.l. | Luxembourg | offshore centre |
| Rowan Global Drilling Services Limited | Gibraltar | offshore centre |
| Rowan Holdings Luxembourg S.à r.l. | Luxembourg | offshore centre |
| Rowan International Rig Holdings S.à r.l. | Luxembourg | offshore centre |
| Rowan Marine Services, LLC | Texas | |
| Rowan N-Class (Gibraltar) Limited | Gibraltar | offshore centre |
| Rowan Norway Limited (FKA Rowan (Gibraltar) Limited) | Gibraltar | offshore centre |
| Rowan Offshore Luxembourg S.à r.l. | Luxembourg | offshore centre |
| Rowan Offshore S.à r.l. | Luxembourg | offshore centre |
| Rowan Rex S.à r.l. | Luxembourg | offshore centre |
| Rowan Rigs S.à r.l. | Luxembourg | offshore centre |
| Rowan Services LLC | Delaware | |
| Rowan US Holdings (Gibraltar) Limited | Gibraltar | offshore centre |
| Rowan, S. de R.L. de C.V. | Mexico | |
| Rowandrill Labuan Limited | Labuan | offshore centre |
| Rowandrill Malaysia Sdn. Bhd. | Malaysia | |
| Rowandrill, LLC | Texas | |
| Saudi Aramco Rowan Offshore Drilling Company | Saudi Arabia | |
| SKDP 1 Limited | Cyprus | offshore centre |
| SKDP 2 Limited | Cyprus | offshore centre |
| SKDP 3 Limited | Cyprus | offshore centre |
| Societe Maritime de Services "SOMASER" S.A.S. | France | |
| Sonamer Angola Ltd. | Bahamas | offshore centre |
| Sonamer Drilling International Limited | Bahamas | offshore centre |
| Sonamer Limited | Bahamas | offshore centre |
| Valaris Finance Company LLC | Delaware | |
| Valaris Holdco 1 Limited | Bermuda | offshore centre |
| Valaris Holdco 2 Limited | Bermuda | offshore centre |
| Valaris Tenerife SL | Spain | |
| Valaris United LLC | Delaware |
Two standard screens, computed from the XBRL in FY2025 against FY2024. Every test shows the numbers behind it — a score with its inputs hidden is a number you cannot check.
| Year | Revenue | Net income | Free cash flow | Gross margin | Shares |
|---|---|---|---|---|---|
| FY2021 | — | — | — | — | — |
| FY2021 | — | — | — | — | 199,600,000 |
| FY2022 | $1.6B | $176.5M | −$79.5M | — | 75,600,000 |
| FY2023 | $1.8B | $865.4M | −$428.6M | — | 75,200,000 |
| FY2024 | $2.4B | $373.4M | −$99.7M | — | 72,900,000 |
| FY2025 | $2.4B | $982.8M | $202.7M | — | 70,900,000 |
14 institutions tracked — 9 added, 4 reduced, 1 opened a new position, 1 sold out.
| Manager | Kind | Shares | Change | Value |
|---|---|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | Index | 2,059,146 | +427,897 | $161.6M |
| CITADEL ADVISORS LLC | Hedge fund | 874,273 | +389,346 | $63.5M |
| Bridgewater Associates, LP | Hedge fund | 321,713 | +285,816 | $23.4M |
| BANK OF AMERICA CORP /DE/ | Active fund | 828,769 | +261,753 | $58.3M |
| JPMORGAN CHASE & CO | Active fund | 472,165 | +231,115 | $35.4M |
| MORGAN STANLEY | Active fund | 2,265,465 | +183,453 | $164.4M |
| RENAISSANCE TECHNOLOGIES LLC | Hedge fund | 67,400 | −95,300 | $4.9M |
| Point72 Asset Management, L.P. | Hedge fund | 76,635 | −84,016 | $4.2M |
| AQR CAPITAL MANAGEMENT LLC | Hedge fund | 35,605 | −43,225 | $2.6M |
| STATE STREET CORP | Index | 2,521,632 | +24,124 | $183.1M |
| BlackRock, Inc. | Index | 8,213,354 | −10,815 | $596.3M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Active fund | 77,169 | +7,990 | $5.6M |
| FMR LLC | Active fund | 71,823 | +5,305 | $5.2M |
NORGES BANK holds a position with no prior filing to compare against, so its change is unknown rather than zero — and it is left out of the totals above.
From 13F filings, which cover institutions managing over $100m and are filed up to 45 days after the quarter ends — so this is a considered position, not a live one, and it is not the whole shareholder register.
Ownership percentages are a vendor aggregate, not a filing — unlike everything else on this page.
Valaris Ltd files under SIC 1381 — all 6 drilling oil & gas wells companies compared on assets and F-score.
The structure map above is the Corporate Blueprint, and in the desktop it is interactive — click any entity to re-centre the map on it and walk the ownership chain. It sits alongside the screener, the scorecard and the filings lab on one desk, on your machine.
Sourced from SEC EDGAR primary filings. Figures are as reported by the company and are not investment advice. Scores are standard published screens computed from those filings; every input is shown above so you can check the arithmetic.