Constitution Pipeline Co., LLC, a joint development between Williams Partners L.P. (NYSE: WPZ) and Cabot Oil & Gas Corp. (NYSE: COG), announced the execution of precedent agreements for a proposed 121-mile pipeline designed to connect natural gas production in northeastern Pennsylvania with northeastern markets by spring 2015.

Cabot Oil & Gas has committed to transport 500,000 dt/day (dekatherms per day), while Southwestern Energy Services Co., a subsidiary of Southwestern Energy Co. (NYSE: SWN) has agreed to transport 150,000 dt/day for a total takeaway capacity of 650,000 dt/day (enough natural gas to serve about 3 million homes).

The new 121-mile Constitution Pipeline is being designed to connect Williams Partners' gathering system in Susquehanna County, Pa., to the Iroquois Gas Transmission and Tennessee Gas Pipeline systems in Schoharie County, NY. Williams Partners will own 75% of Constitution Pipeline and, through its affiliates, will provide construction, operation and maintenance services for the new pipeline. Cabot will own the remaining 25%.