Last week MDN brought you the news that Williams has pre-filed an application with the Federal Energy Regulatory Commission for the the Northeast Supply Enhancement project–a project to expand the Transco pipeline to increase pipeline capacity and flows heading into northeastern markets (see Williams Pre-Files with FERC to Expand Tranco Pipeline in PA, NY). Yesterday Williams announced an official, “binding” open season for the project–to sign customers to long-term contracts to use the expanded capacity…