MPLX LP Annual Report, Year Ended Dec 31, 2012

MPLX LP, a master limited partnership focused on midstream energy infrastructure, filed its 2013 10-K detailing its operations and financial position as of December 31, 2012. The report highlights the company's significant reliance on its parent, Marathon Petroleum Corporation (MPC), as its primary customer and the existence of substantial conflicts of interest between MPLX LP and MPC. The filing also underscores the partnership's structure, which requires distributing all available cash to unitholders, necessitating external financing for growth. Investors should note the limited voting rights of unitholders and the extensive control retained by the general partner, which is controlled by MPC. The report also touches on potential risks related to internal controls, tax implications, and the terms of operational agreements. The company's financial performance in 2012 showed growth in revenues and income from operations, largely driven by fee-based contracts with MPC. The initial public offering (IPO) in October 2012 provided significant capital, with a portion retained for expansion capital expenditures and working capital. The company also outlined its intention to pay a minimum quarterly distribution of $0.2625 per unit. Key financial highlights include substantial property, plant, and equipment assets and a strong operational footprint in midstream infrastructure.