JMH Company Profile

JMH was established on October 1st, 2014 by eleven companies in order to participate and operate medium to long-term offshore production tests of pore-filling type methane hydrate in sandy sediments efficiently, effectively and smoothly.

JMH and its shareholders, which consist of the seven oil and natural gas development companies and the four plant engineering companies, form an all-Japan structure. Through this structure JMH takes the initiative in developing technologies to realize commercial development of methane hydrate with putting the shareholders’ wisdom together and sharing their knowledge among them.

Company Name: Japan Methane Hydrate Operating Co., Ltd. (JMH)

Established Date: October 1, 2014

Head Office: Sapia Tower 12th Floor, 1-7-12 Marunouchi, Chiyoda-ku, Tokyo 100-0005 Japan

Tel: +81-3-6268-7200

Shareholders (11 companies):

  • Japan Petroleum Exploration Co., Ltd. (JAPEX)
  • Japan Drilling Co., Ltd. (JDC)
  • Idemitsu Kosan Co., Ltd.
  • JX Nippon Oil & Gas Exploration Corporation
  • Chiyoda Corporation (Chiyoda)
  • Toyo Engineering Corporation (Toyo)
  • Mitsui Oil Exploration Co.,Ltd. (MOECO)
  • Mitsubishi Gas Chemical Company, Inc. (MGC)

Capital:       300 million yen (Capital: 150 million yen; Capital Reserve: 150 million yen)

President:     Shoichi Ishii (Executive Vice Presidents, Japan Petroleum Exploration Co., Ltd.)

Managing Director:  Hideaki Takahashi


  • Masahiro Nakamura (General Manager, Drilling Technology Department, Japan Drilling Co., Ltd.)
  • Tetsuro Tochikawa (Executive Officer, INPEX CORPORATION)
  • Akira Tanaka (Executive Officer, JX Nippon Oil & Gas Exploration Corporation)
  • Nobuaki Aoyama (Executive Advisor, NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.)
  • Masanori Abe

Auditor:       Tetsuya Higuchi (Assistant General Manager, Finance Department, Japan Drilling Co., Ltd.)


  • Administration Department
  • Planning Department
  • Operations Department
  • Facility Design and Construction Department 1
  • Facility Design and Construction Department 2