Institutional Manager · CIK 0001588225
Heronetta Management, L.P.
NEW YORK, NY · File #028-15640
Latest AUM
$172.9M
Positions
25
Top-10 Concentration
70.8%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | MPLX LP | MPLXP | -32,425 | -$1.7M | +$1.2M |
| REDUCE | ENTERPRISE PRODS PARTNERS L | 293792107 | -52,800 | -$1.7M | +$433,906 |
| REDUCE | WILLIAMS COS INC | 969457100 | -26,125 | -$1.6M | -$895,137 |
| REDUCE | ENERGY TRANSFER L P | ET-PI | -82,025 | -$1.4M | -$592,384 |
| REDUCE | ONEOK INC NEW | OKE | -14,400 | -$1.1M | +$82,575 |
| REDUCE | WESTERN MIDSTREAM PARTNERS L | WES | -22,225 | -$877,888 | +$48,004 |
| REDUCE | HESS MIDSTREAM LP | HESM | -9,050 | -$312,225 | -$5,147 |
| REDUCE | PLAINS GP HLDGS L P | PAGP | -15,200 | -$290,928 | +$178,673 |
| REDUCE | KINDER MORGAN INC DEL | EP-PC | -6,400 | -$175,936 | -$78,003 |
| REDUCE | ANTERO MIDSTREAM CORP | AM | 0 | $0 | -$27,901 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202525 pos · $172.9M
- 13F HOLDINGS REPORTQ/E Sep 202525 pos · $182.6M
- 13F HOLDINGS REPORTQ/E Jun 202525 pos · $179.5M
- 13F HOLDINGS REPORTQ/E Mar 202524 pos · $183.0M
- 13F HOLDINGS REPORTQ/E Dec 202424 pos · $175.1M
- 13F HOLDINGS REPORTQ/E Sep 202423 pos · $163.6M
- 13F HOLDINGS REPORTQ/E Jun 202423 pos · $156.3M
- 13F HOLDINGS REPORTQ/E Mar 202423 pos · $154.9M
- 13F HOLDINGS REPORTQ/E Dec 202323 pos · $136.3M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | MPLX LP | MPLXP | 323,639 | $17.3M | 9.99% |
| 2 | ENTERPRISE PRODS PARTNERS L | 293792107 | 496,448 | $15.9M | 9.20% |
| 3 | WILLIAMS COS INC | 969457100 | 250,152 | $15.0M | 8.69% |
| 4 | ENERGY TRANSFER L P | ET-PI | 802,129 | $13.2M | 7.65% |
| 5 | ENBRIDGE INC | ENNPF | 193,266 | $12.4M | 7.18% |
| 6 | ONEOK INC NEW | OKE | 141,402 | $10.4M | 6.01% |
| 7 | TC ENERGY CORP | TRPRF | 137,316 | $10.1M | 5.85% |
| 8 | PEMBINA PIPELINE CORP | PPLOF | 197,698 | $10.1M | 5.83% |
| 9 | CANADIAN PACIFIC KANSAS CITY | CP | 89,300 | $9.0M | 5.22% |
| 10 | CANADIAN NAT RES LTD | 136385101 | 193,600 | $9.0M | 5.20% |
| 11 | WESTERN MIDSTREAM PARTNERS L | WES | 206,361 | $8.2M | 4.71% |
| 12 | SUNCOR ENERGY INC NEW | SU | 132,000 | $8.0M | 4.65% |
| 13 | CANADIAN NATL RY CO | 136375102 | 53,400 | $7.2M | 4.19% |
| 14 | FORTIS INC | FTRSF | 86,000 | $6.1M | 3.55% |
| 15 | EMERA INC | EMRJF | 66,500 | $4.5M | 2.60% |
| 16 | PLAINS GP HLDGS L P | PAGP | 183,325 | $3.5M | 2.03% |
| 17 | HESS MIDSTREAM LP | HESM | 93,905 | $3.2M | 1.87% |
| 18 | KINDER MORGAN INC DEL | EP-PC | 88,725 | $2.4M | 1.41% |
| 19 | TRANSALTA CORP | TSLTF | 122,000 | $2.1M | 1.22% |
| 20 | TARGA RES CORP | TRGP | 10,242 | $1.9M | 1.09% |