The MLP has accomplished a lot already this year.MPLX (MPLX 0.47%) is quietly having an excellent year. The master limited partnership (MLP) has secured many new organic expansion projects. It has also closed on several accretive acquisitions. These new investments have significantly enhanced and extended the company's growth profile through the end of the decade.Here's a look at why the MLP deserves more attention from investors. Building a bigger backlogMPLX entered this year with several growth capital p ...