Mariner East Newsroom Mariner East Project to Generate Over $9 Billion in Economic Impacts in Pennsylvania, as Reported in New Study by Econsult Solutions, Inc. Jan. 8, 2018 Sunoco Pipeline Trained More Than 750 First Responders in Pipeline Safety this Year Alone Dec. 4, 2017 Redevelopment at Sunoco Partners’ Marcus Hook Industrial Complex Nets Nearly $5 Million in Annual Taxes for Chichester School District, Marcus Hook Borough and Delaware County Oct. 26, 2017