FERC Invites Quapaw Nation Participation in Review of Two Natural Gas Projects

The Federal Energy Regulatory Commission (FERC) is inviting the Quapaw Nation to participate in the review of two natural gas projects, the South System Expansion 4 Project and the Mississippi Crossing Project. Both projects aim to expand the capacity of existing pipelines, with the SSE4 Project involving the construction of 14 new gas pipeline loops and the MSX Project involving the construction of approximately 208 miles of new natural gas pipeline. The Quapaw Nation, a federally recognized tribe in Oklahoma, is being asked to provide comments on the projects to ensure that their concerns are identified and properly considered in the environmental analysis.

Key Takeaways:

• The FERC is preparing a single environmental document to discuss the environmental impacts of both projects, which will involve the construction and operation of new pipelines, compressor stations, meter stations, and other facilities in multiple counties across Mississippi, Alabama, and Georgia.
• The SSE4 Project would involve the construction of 14 new gas pipeline loops, totaling 291 miles, in seven states.
• The MSX Project would involve the construction of approximately 208 miles of new natural gas pipeline and pipeline lateral facilities, as well as three new natural gas compressor stations, in eight states.
• The Quapaw Nation is being asked to provide comments on the projects to ensure that their concerns are identified and properly considered in the environmental analysis.
• The tribe is also being asked to assist in identifying their properties of traditional, religious, or cultural importance that may be affected by the proposed projects.
• Comments can be submitted electronically or in writing, with the deadline for response being 30 days from the date of the letter.

Statistics:

• The SSE4 Project would involve the construction of 14 new gas pipeline loops, totaling 291 miles.
• The MSX Project would involve the construction of approximately 208 miles of new natural gas pipeline and pipeline lateral facilities.
• The projects would span across seven states: Mississippi, Alabama, Georgia, and four other states (not specified).
• The Quapaw Nation has 30 days to respond to the letter and provide comments on the projects.

Sources:

• Federal Energy Regulatory Commission (FERC)

- Document Accession #: 20250807-3072

- Filed Date: 08/07/2025

• Southern Natural Gas Company, LLC and Elba Express Company, LLC

- Docket No. CP25-517-000

• Tennessee Gas Pipeline Company, LLC

- Docket No. CP25-514-000