Headquartered in Houston, Texas, Golden Triangle Storage, LLC (“GTS” or “Golden Triangle”), a subsidiary of Caliche Development Partners III, LLC (“Caliche”), owns a federally regulated, interstate underground natural gas facility located near Beaumont, Texas in Jefferson County. GTS is seeking authorization from the Federal Energy Regulatory Commission (FERC) to construct, own, operate, and maintain the Spindletop Expansion Project, which would add approximately 30.75 billion cubic feet of new natural gas storage capacity to the Existing Storage Facilities and includes the following facilities:

• Four new salt dome natural gas storage caverns (Cavern 8, Cavern 10, Cavern 11 and Cavern 12).
• Temporary drilling and permanent well pad sites for the new caverns.
• Injection/withdrawal natural gas pipelines, raw water supply piping, brine return piping, instrument air piping, conduit runs for electrical and control systems, gas dehydration and associated equipment, heaters, metering, blow down flare, and other process control equipment.
• A new compressor building housing 55,000 hp of spark-ignited reciprocating piston engine-driven compression located in the existing Central Compressor Station.
• New service corridors and permanent access roads.

All the proposed facilities comprising the Spindletop Expansion Project will be located within the existing Central Storage Site and an adjacent leased property.

The Spindletop Expansion Project is needed to satisfy growing demand for natural gas storage in the Gulf Coast region.

On June 10, 2026, FERC approved the Spindletop Expansion Project (Docket No. CP25-167-000). GTS plans to initiate construction on the four new caverns in the summer of 2026 and is anticipated to be in-service by the second half of 2028.