Adamas Energy LLC...Mitsubishi's Replacement For Aethon

I noticed today that two Aethon drilling permits in Texas had been amended to change the operator to Adamas Energy LLC.  I checked around for more info, and grok gave me the most complete answer:

Adamas Energy LLC appears to be a relatively new entity in the energy sector, established as a wholly owned subsidiary of Mitsubishi Corporation (a major Japanese trading house).

It was created following Mitsubishi's acquisition of natural gas and pipeline assets from Aethon Energy Management LLC (a Dallas-based company active in the Haynesville shale basin). The deal was announced in mid-January 2026, with Mitsubishi paying approximately $5.2 billion in cash and assuming about $2.33 billion in debt, for a total enterprise value around $7.5 billion. This marks one of the largest investments by a Japanese company in the U.S. shale gas sector.

Key details:

  • The assets are primarily in the Haynesville Shale formation, spanning eastern Texas and northern Louisiana.
  • They produce roughly 2.1 billion cubic feet per day (Bcf/d) of natural gas — equivalent to about 15 million tons per year of LNG potential.
  • The location is strategic due to proximity to U.S. Gulf Coast LNG export facilities, strengthening Mitsubishi's position in global liquefied natural gas markets (where it already has stakes, like in Cameron LNG).
  • Gordon Huddleston (son of Aethon founder Albert Huddleston) is set to serve as CEO of Adamas Energy.
  • Aethon retained an option to buy back up to 25% of certain upstream and midstream assets.
  • The transaction gives Mitsubishi full involvement in the U.S. shale gas value chain, from production to domestic sales and exports.

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Permalink Reply by Skip Peel - Mineral Consultant 23 hours ago

Thanks, Alan.

https://sosdirectws.sos.state.tx.us/PDFonDemand/RetrievePDF.aspx?do...

Adamas Energy LLC is registered as an operator with Louisiana also.

ADAMAS ENERGY LLC Limited Liability Company (Non-Louisiana) DOVER Active
 
Previous Names
Business: ADAMAS ENERGY LLC
Charter Number: 46761173Q
Registration Date: 11/26/2025
Domicile Address
  1111B S GOVERNORS AVE.
  STE 40665
  DOVER, DE 19904
Mailing Address
  1111B S GOVERNORS AVE.
  STE 40665
  DOVER, DE 19904
Principal Business Office
  1111B S GOVERNORS AVE.
  STE 40665
  DOVER, DE 19904
Registered Office in Louisiana
  450 LAUREL STREET, 8TH FLOOR
  BATON ROUGE, LA 70801
Principal Business Establishment in Louisiana
  175 HAYNES ROAD
  RINGGOLD, LA 70801
Status
Status: Active
Annual Report Status: In Good Standing
Qualified: 11/26/2025
Last Report Filed: N/A
Type: Limited Liability Company (Non-Louisiana)
 
Registered Agent(s)
Agent: CORPORATION SERVICE COMPANY
Address 1: 450 LAUREL STREET, 8TH FLOOR
City, State, Zip: BATON ROUGE, LA 70801
Appointment Date: 11/26/2025
 
Officer(s) Additional Officers: No 
Officer: GORDON HUDDLESTON
Title: Member
Address 1: 1111B S GOVERNORS AVE.
Address 2: STE 40665
City, State, Zip: DOVER, DE 19904
 
Permalink Reply by Skip Peel - Mineral Consultant 6 hours ago

Alan, please also consider posting this in the Western Haynesville Group.  I'd like to increase our coverage of the Western Haynesville which will lead to more members asking location specific questions. When that happens, we can create Western HA groups by county.  Location specific information is critical for locals to make informed decisions.  And those discussions stay visible on the play group and the county groups long after they have rotated off the main page of the website.

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