| Amount | Holding |
|---|---|
| 16.65% | Energy Transfer LP |
| 16.21% | NuStar Energy L.P |
| 15.43% | MPLX LP |
| 15.01% | Enterprise Products Partners L.P |
| 10.89% | BP Midstream Partners LP |
| 9.70% | Plains All American Pipeline, L.P |
| 9.54% | Shell Midstream Partners, L.P |
| 7.76% | DCP Midstream, LP |
| 7.06% | Western Midstream Partners, LP |
| 5.27% | Marathon Petroleum Corporation |