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Operator

GEP Haynesville LLC

Acquired in November 2021 by Southwestern Energy Co.. The snapshot below reflects historical activity.

About

Exploration & Production

  • AddressThe Woodlands Texas
  • Phone(281) 363-9161
  • Acquired bySouthwestern Energy Co.

Acquisition chain

Forward & backward M&A lineage

Drilling activity

Recent rig presence by basin

Recent activity

Latest news mentioning GEP Haynesville LLC

Deals

JERA To Buy Haynesville Asset For $1.5 Billion Oct 2025

Japan’s largest power generator, JERA Co., Inc., moved deeper into U.S. upstream natural gas with a $1.5 billion acquisition of the South…

Southwestern Ups Ante in the Haynesville; Acquires GEP Nov 2021

Southwestern Energy is expanding it's Haynesville footprint after acquiring Indigo in June 2021 for $2.7 billion. Today the company…

GeoSouthern Acquires North Louisiana Haynesville Property From Sabine Jul 2017

Sabine Oil & Gas sold its Haynesville assets in North Louisiana for $45 million to GEP Haynesville, a JV of privately held GeoSouthern…

GeSouthern Acquires Haynesville Assets From Encana Aug 2015

Encana Oil & Gas has reached an agreement to sell its Haynesville natural gas assets, located in northern Louisiana, to GEP Haynesville…

All transactions →

Permits

HA RA SUR;G MAN 27-22-15 HC PLEASANT HILL Jan 27, 2026
HA RA SUR;G MAN 27-22-15 HC PLEASANT HILL Jan 27, 2026
HA RA SU54;CAB 30-31-6 H REDOAK LAKE Jul 25, 2025
HA RA SUQ;ALERION 14-23-26 HC BENSON Jun 6, 2025
HA RA SUR;G MAN 27-22-15 HC PLEASANT HILL Jun 6, 2025
HA RA SUR;G MAN 27-22-15 HC PLEASANT HILL Jun 6, 2025

All permits →

Assets

No asset records

Operations transferred to Southwestern Energy Co. Live acreage and lease records sit under the successor.

Regions of activity

No regional activity indexed yet

When Southwestern Energy Co. files permits or discloses acreage tied to this entity, the regions show up here.

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