| Amount | Holding |
|---|---|
| 13.75% | Enterprise Products Partners L.P |
| 8.32% | Kinder Morgan Energy Partners LP |
| 7.46% | Energy Transfer LP |
| 6.53% | Plains All American Pipeline, L.P |
| 5.80% | Magellan Midstream Partners, L.P |
| 5.04% | Energy Transfer Partners, L.P |
| 3.37% | Kinder Morgan Management, LLC |
| 3.14% | Markwest Energy Partners LP |
| 2.45% | Resources Connection, Inc |
| 2.28% | Oneok Partners LP |