Mitsubishi Corporation Acquires Haynesville Shale Gas Business in Louisiana and Texas

18 Jan Mitsubishi Corporation Acquires Haynesville Shale Gas Business in Louisiana and Texas

Mitsubishi Corporation (“MC”) has agreed to acquire all equity interests in Aethon III LLC, Aethon United LP, and related entities and interests (collectively “Aethon”). This transaction marks MC’s entry into the U.S. shale gas business across the value chain, from upstream ownership through domestic sales and export of produced gas.

MC reached an agreement on January 16, 2026 with Aethon Energy Management and Aethon’s existing stakeholders, including Ontario Teachers’ Pension Plan, RedBird Capital Partners for a total equity investment of approximately USD 5.2 billion. The acquisition is expected to close in the first quarter of Japan’s fiscal year (April to June of 2026), subject to customary regulatory approvals.

Building on MC’s established North American energy platform—which includes upstream shale gas development with Ovintiv in British Columbia, midstream marketing and logistics through CIMA Energy in Houston, LNG exports via LNG Canada and Cameron LNG, and power generation through Diamond Generating Corporation—this acquisition further strengthens MC’s integrated energy and power business.

Aethon’s shale gas assets are primarily located in the Haynesville Shale formation, spanning Texas and Louisiana, and currently produce approximately 2.1 Bcf/d of natural gas (equivalent to about 15 million tons per year of LNG).