Sunoco LP’s Mariner East 2 NGL Pipeline Now Online! Energy Services | Energy Transfer Partners | Industrywide Issues | Pennsylvania | Pipelines | Statewide PA | Sunoco Logistics January 2, 2019January 2, 2019 Click for larger version Here’s the opening line in a newspaper story about the fantastic news that Energy Transfer/Sunoco Logistics’ Mariner East 2 (ME2) NGL pipeline is finally up and running: “Mariner East 2 is online, and its legions of critics are outraged.” Please Login to view this content. (Not a member? Join Today!) Related