| SC 13G/A | 2024-02-12 | Invesco Ltd. | NuStar Energy L.P. | 20,580,434 | 16.3% | EDGAR |
| SC 13G/A | 2024-02-05 | ALPS ADVISORS INC | NuStar Energy L.P. | 19,851,295 | 15.8% | EDGAR |
| SC 13G/A | 2023-02-13 | ALPS ADVISORS INC | NuStar Energy L.P. | 14,852,307 | 13.5% | EDGAR |
| SC 13G | 2023-02-13 | TORTOISE CAPITAL ADVISORS, L.L.C. | NuStar Energy L.P. | 4,031,032 | 3.7% | EDGAR |
| SC 13G/A | 2023-01-10 | Invesco Ltd. | NuStar Energy L.P. | 20,686,215 | 18.8% | EDGAR |
| SC 13D/A | 2022-11-22 | EIG Nova Equity Aggregator, L.P. | NuStar Energy L.P. | - | 9.6% | EDGAR |
| SC 13G | 2022-02-11 | TORTOISE CAPITAL ADVISORS, L.L.C. | NuStar Energy L.P. | 7,224,258 | 6.6% | EDGAR |
| SC 13G/A | 2022-02-10 | Invesco Ltd. | NuStar Energy L.P. | 14,978,703 | 13.7% | EDGAR |
| SC 13G/A | 2022-02-03 | ALPS ADVISORS INC | NuStar Energy L.P. | 12,872,499 | 11.8% | EDGAR |
| SC 13G/A | 2021-02-12 | Invesco Ltd. | NuStar Energy L.P. | 11,259,769 | 10.3% | EDGAR |
| SC 13G/A | 2021-02-12 | TORTOISE CAPITAL ADVISORS, L.L.C. | NuStar Energy L.P. | 6,255,169 | 5.7% | EDGAR |
| SC 13G/A | 2021-02-09 | ALPS ADVISORS INC | NuStar Energy L.P. | 12,448,116 | 11.4% | EDGAR |
| SC 13D | 2020-07-02 | EIG Nova Equity Aggregator, L.P. | NuStar Energy L.P. | 17,336,485 | 13.7% | EDGAR |
| SC 13G/A | 2020-02-14 | Brookfield Public Securities Group LLC | NuStar Energy L.P. | 2,827,755 | 2.6% | EDGAR |
| SC 13G | 2020-02-14 | TORTOISE CAPITAL ADVISORS, L.L.C. | NuStar Energy L.P. | 9,576,060 | 8.9% | EDGAR |
| SC 13G/A | 2020-02-07 | Invesco Ltd. | NuStar Energy L.P. | 11,772,624 | 10.9% | EDGAR |
| SC 13G/A | 2020-02-07 | ALPS ADVISORS INC | NuStar Energy L.P. | 11,747,098 | 10.9% | EDGAR |
| SC 13G/A | 2020-01-10 | Harvest Fund Advisors LLC | NuStar Energy L.P. | 5,117,776 | 4.7% | EDGAR |
| SC 13G | 2019-06-10 | Invesco Ltd. | NuStar Energy L.P. | 13,111,401 | 12.2% | EDGAR |
| SC 13G | 2019-02-14 | Brookfield Public Securities Group LLC | NuStar Energy L.P. | 7,709,963 | 7.2% | EDGAR |