GSK vs MPC Comparison

In the pharmaceutical industry, GSK ranks as one of the largest firms by total sales. The company wields its might across several therapeutic classes, including respiratory, antiviral, and vaccines, and has been growing its presence in oncology and immunology, as well. GSK uses joint ventures to gain additional scale in certain markets like HIV.

Marathon Petroleum is a leading integrated downstream and midstream energy company that operates 13 refineries in the Gulf Coast, Mid-Continent, and West Coast regions of the United States with an aggregate crude oil refining capacity of 3.0 million barrels per day. The company is one of the largest producers of renewable diesel in the US; its Dickinson, North Dakota facility has the capacity to produce 184 million gallons per year, and its Martinez, California, joint venture facility (a 50/50 partnership with Neste) reached its full capacity of 730 million gallons per year in late 2024. Marathon also owns the general partner and approximately 64% of MPLX LP, a large-cap master limited partnership that owns and operates midstream energy infrastructure and logistics assets.