Enterprise Products Partners and MPLX have large backlogs of expansion projects. Enterprise Products Partners (EPD -1.26%) and MPLX (MPLX -0.96%) offer investors the best of both worlds. The master limited partnerships (MLPs) pay monster distributions (both currently yield more than 7%). They've also been able to grow their earnings and payouts at healthy rates for years. The MLPs currently have enough commercially secured organic expansion projects under construction to grow their cash flow through at leas ...