MPLX vs AMP Comparison

MPLX is a partnership that owns pipelines and gathering and processing assets with extensive holdings in the Appalachian and Permian regions. The asset base is made up of crude oil and refined products assets dropped down from Marathon Petroleum, its sponsor, and natural gas and natural gas liquids gathering and processing assets that were purchased or built.

Ameriprise Financial has evolved into a diversified financial services provider that generates roughly 65% of its operating income from advice and wealth management. With nearly $1.2 trillion in segment assets under management and advisory at year-end 2025, and with roughly 10,600 affiliated and employee advisors, Ameriprise is one of the larger US-based wealth managers. It also boasts a reasonably large asset management franchise in Columbia Threadneedle, which boasted $678 billion in assets under management at year-end 2025. The firm's third key segment is its retirement and protection services business, which sells insurance products to the firm's advisory clients. After eliminations, Ameriprise had $1.69 trillion in assets under management and advisory across segments at year-end 2025.