Core Viewpoint - MPLX LP has successfully priced $4.5 billion in unsecured senior notes to fund acquisitions and general partnership purposes [1][2]. Group 1: Offering Details - The offering consists of four tranches: $1.25 billion of 4.800% senior notes due 2031, $750 million of 5.000% senior notes due 2033, $1.5 billion of 5.400% senior notes due 2035, and $1.0 billion of 6.200% senior notes due 2055 [1]. - The closing of the offering is expected on August 11, 2025, pending customary closing conditions [3]. Group 2: Use of Proceeds - A portion of the net proceeds will fund the acquisition of Northwind Delaware Holdings LLC and cover related fees and expenses [2]. - The remaining proceeds will be used for general partnership purposes, including capital expenditures and working capital [2]. Group 3: Company Overview - MPLX is a diversified, large-cap master limited partnership that operates midstream energy infrastructure and logistics assets, including pipelines, terminals, and storage facilities [6].