Williams Unveils “Leidy South Project” to Expand Transco in PA December 4, 2018 Energy Services, Industrywide Issues, Pennsylvania, Pipelines, Statewide PA, Transco, Williams Partners Username Password Remember me Forgot Password? Join Us Related Post navigation Open Season – for Mariner East Pipelines?!“Growing” Opposition to Shell Ethane Cracker Pipe from One Source You do not have permission to view the comments. Click here to cancel reply. Please Login to post a comment Notify me of follow-up comments by email.