Morgan Stanley analyst Tom Abrams said he thinks the acquisition of Andeavor (ANDV) by Marathon Petroleum (MPC) has positive growth implications for MPLX LP (MPLX) and negative implications for Andeavor Logistics (ANDX). Given that view, he downgraded Andeavor Logistics to Equal Weight, though Abrams recommends investors stay involved near-term in case Andeavor's conference call on May 8 provides confidence in the 2018 growth trajectory for the MLP. He expects the MLPs will eventually be combined, adding it is possible the dropdowns investors anticipated for Andeavor Logistics will end up at MPLX given its currently more competitive cost of capital. Abrams lowered his price target on Andeavor Logistics to $46 from $56.