Devon Energy (DVN) MPLX (MPLX), Diamondback Energy (FANG), and Western Midstream (WES), and WhiteWater, through their Solitude Pipeline System joint venture, have reached a positive final investment decision to build two 48-inch natural gas pipelines from the Permian Basin to Katy, Texas, WhiteWater said Monday.

The Solitude project has secured long-term transportation agreements with shippers to support the decision, the company said.

The pipeline system, expected to begin service in H2 2029, will provide an initial capacity of around 2.25 billion cubic feet per day of natural gas by late 2029, with an additional 2.25 billion in 2030, the company said.