Brazos Midstream Holdings LLC has commissioned a new 300-MMcfd cryogenic natural gas processing plant in Martin County, Tex., and started construction of an additional 300-MMcfd facility in neighboring Glasscock County as part of its operational expansion in the Permian’s Midland basin.
The newly online Sundance II plant increases the company’s operated Midland basin processing capacity to 500 MMcfd when combined with the existing 200-MMcfd Sundance I plant, which entered service in mid-2024.
The two plants form the Sundance complex in Martin County.
The largest cryogenic plant Brazos has built to date, Sundance II also expands incremental residue gas and NGL takeaway capacity in the core of the Midland basin, where producer drilling activity remains concentrated, the company said.
Cassidy complex under construction
Brazos also confirmed construction of the Cassidy processing complex is now under way in Glasscock County. The initial phase, Cassidy I, includes a 300-MMcfd cryogenic plant targeted for completion by yearend 2026.
Upon startup of Cassidy I, Brazos’ total operated natural gas processing capacity in the Midland basin will reach 800 MMcfd, according to the operator.
Brazos said it has secured grid power and related infrastructure to support future expansion phases at the Cassidy site as producer drilling programs drive additional processing demand.
Gathering system expansion
Alongside gas processing additions, Brazos said it is expanding its Midland basin gathering footprint with more than 70 miles of new 20-in. and 24-in. high-pressure natural gas gathering pipeline currently under construction.
The new lines specifically aim to relieve existing constraints for producers in Reagan, Glasscock, Midland, and Upton counties, the company said.
When the pipeline work is completed in mid-2026, the company’s Midland basin system is expected to include about 525 miles of natural gas gathering pipelines and 16 compressor stations.
Brazos said its Midland operations are supported by long-term acreage dedications covering more than 375,000 acres from upstream producer customers in active development.
The company’s footprint in the basin now spans Ector, Glasscock, Howard, Midland, Martin, Reagan, and Upton counties.
Permian growth trajectory
The latest buildout extends Brazos’ broader Permian basin growth trajectory.
With Sundance II now in service and Cassidy I under construction, Brazos said it is positioning its Midland system for further scale as associated gas volumes continue to grow.
