The U.S. Court of Appeals for the Second Circuit decision issued Friday to reject a lawsuit by the Constitution Pipeline challenging New York state's decision not to grant the necessary water permit to build the 121-mile natural gas pipeline doesn't mark the end of the project, the builders said.

In an emailed response to the New York Law Journal Monday, Constitution Pipeline, a partnership among Cabot Oil & Gas Corp.; Oklahoma-based energy company Williams Cos.; Piedmont Natural Gas and WGL Holdings, said the company was “weighing all options” on how to proceed with the project.

In a statement, Tulsa-based energy company Williams said the Second Circuit's decision recognized the federal Natural Gas Act, which would allow the Constitution Pipeline to seek final approval by the federal government. In October 2014, the Washington-based Federal Energy Regulatory Commission (FERC), which oversees pipeline projects, published its final environmental review of the Constitution Pipeline, giving the project a construction certificate, though it still needed state permits to begin construction.