Global investment firm Sixth Street’s portfolio company Caliche Development Partners has completed its deal to buy Central Valley Gas Storage, the firm said March 18.

Caliche’s operations involve the underground storage of natural gas, industrial gases like hydrogen and helium and carbon sequestration. The company’s assets are located along the Gulf Coast in Jefferson County, Texas, and in Colusa County, California.

Sixth Street had previously closed on its acquisition of Caliche in October 2024. The deal included the Golden Triangle Storage complex in Beaumont, Texas.

Both the Central Valley Gas Storage, located in Princeton, California, and the Golden Triangle will continue to be operated by Caliche.