Group 1 - MPLX LP has made its 2025 investor tax packages available on its website, with mailing set to begin on March 23, 2026 [1] - Investors can access the tax packages through the "Investor Data" link on the MPLX website or directly via a provided link [1] - For inquiries regarding the Tax Reporting Package for the year ended December 31, 2025, a toll-free number is available [1] Group 2 - MPLX LP is a diversified, large-cap master limited partnership that operates midstream energy infrastructure and logistics assets [2] - The company's assets include a network of crude oil and refined product pipelines, storage caverns, and natural gas processing facilities [2] - MPLX also owns crude oil and natural gas gathering systems and pipelines in key U.S. supply basins [2] Group 3 - MPLX LP has priced $1.5 billion in aggregate principal amount of unsecured senior notes [4]