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Company Profile

Company Name

Japan Drilling Co., Ltd.

Head Office

THE PARKREX ASAKUSABASHI,1-4-5 Yanagibashi, Taito-ku, Tokyo 111-0052, Japan

Tel: +81-(0)3-6858-0930

Fax: +81-(0)3-6679-3102


April 23, 1968

Paid-in Capital

JPY 100 million


JPY 21,331 million (USD 157 million) for the Year Ended March 31, 2023

Offices & Major Subsidiaries

Head Office

The Parkrex Asakusabashi, 1-4-5 Yanagibashi, Taito-ku,

Tokyo 111-0052, Japan

Singapore branch

Loyang Offshore Supply Base 23 Loyang Crescent, Blk 202,

TOPS Street 22 #01-06, Singapore 508986

Mantle Quest Japan Company Ltd.

The Parkrex Asakusabashi, 1-4-5 Yanagibashi, Taito-ku, Tokyo 111-0052

JDC Oilfield Services Co., Ltd.

The Parkrex Asakusabashi, 1-4-5 Yanagibashi, Taito-ku, Tokyo 111-0052

PT. Japan Drilling Indonesia

​Wisma 46 Kota BNI, 12th Floor, suite 12.12-12.13
Jalan Jenderal Sudirman Kav 1, Jakarta Pusat 10220 Indonesia

Japan Drilling (Netherlands) B.V.

Prof. JH Bavincklaan 7, 1183AT Amstelveen, Kingdom of the Netherlands



Company Profile

A Story Worth Telling



Established Japan Drilling Co., Ltd. in Toranomon, Minato-ku, Tokyo, 500 million yen in capital. The business purpose was to conduct drilling operations related to exploration and development of oil and gas overseas and domestically and related engineering work.



Constructed multiple rigs.

Established PT. Japan Drilling Indonesia in the Republic of Indonesia.

Major operations: Japan, South Korea, Qatar, Philippines and Vietnam.


Growth with Partners

Established local subsidiaries with joint venture partners in Qatar and Malaysia.

Moved the head office to Horidome-cho, Nihonbashi, Chuo-ku, Tokyo.

In 2008, delivered a jack-up type drillin rig "HAKURYU-10".

Major operations: South Africa, Congo, Nigeria, Brunei, Mexico

Chikyu Operations

Mantle Quest Japan Company Ltd. starts operations and management of the Deep-Sea Drilling Vessel "Chikyu" owned by Japan Agency for Marine-Earth Science (JAMSTEC).



Moved the head office to Yanagibashi, Taito-ku, Tokyo.

In 2021, the Tokyo District Court issued an order confirming the reorganization plans.

In 2022, a capital contribution as made to JDC by the Aspirant Group, Inc., and the same year the court issued decisions to complete the corporate reorganization proceedings.

Major operations: Japan, Indonesia, Malaysia and Qatar.


Company Growth

Constructed multiple rigs and started operations in Japanese waters and overseas.

Established a Singapore office.

Established JDC Oilfield Service Co., Ltd.

Major ​operations: Japan, Indonesia, Egypt, Thailand, Russia and UAE.


Continuous development

Establish the HSE (Health, Safety, Environment) Management Plan.

Relocated the head office to Nishi-Azabu, Minato-ku, Tokyo.

Major operations: Japan, Angola, India, Australia and Namibia.


Glory and Tough Period

Established Japan Drilling (Netherlands) BV in the Kingdom of the Netherlands.

In 2013, "HAKURYU-11" jack-up MODU delivered.

​In 2018,  filed a petition with the Tokyo District Court for the commencement of corporate reorganization proceedings. Petition accepted by same court.

Major Operations: Japan​, Indonesia, Myanmar, Tunisia and Spain.

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