Heronetta Management, L.P.
In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 4, 2026), Heronetta Management, L.P. reported 25 stock positions worth $172.9 million. Its top holding was MPLX (MPLX) at 10.0% of the portfolio, followed by Enterprise Products Partners (EPD, 9.2%) and Williams Cos (WMB, 8.7%). Compared with Q3 2025, it reduced 9. The biggest sale was Williams Cos (WMB, shares −9%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001588225
- Portfolio Value
- $172.9M (Q4 2025)
- SEC Filing
- 0000922423-26-000012 ↗ filed Feb 4, 2026
Holdings Value
Holdings 25 stocks · $172.9M
| MPLX MPLX LP | 9.99% | 323,639 | $17.3M | Reduce -9.1% |
| EPD Enterprise Products Partners | 9.20% | 496,448 | $15.9M | Reduce -9.6% |
| WMB Williams Cos Inc. | 8.69% | 250,152 | $15.0M | Reduce -9.5% |
| ET Energy Transfer LP | 7.65% | 802,129 | $13.2M | Reduce -9.3% |
| ENB Enbridge Inc. | 7.18% | 193,266 | $12.4M | No change |
| OKE Oneok Inc. | 6.01% | 141,402 | $10.4M | Reduce -9.2% |
| TRP TC Energy Corp. | 5.85% | 137,316 | $10.1M | No change |
| PBA Pembina Pipeline Corp. | 5.83% | 197,698 | $10.1M | No change |
| CP Canadian Pacific Kansas City | 5.22% | 89,300 | $9.0M | No change |
| CNQ Canadian Natural Resources | 5.20% | 193,600 | $9.0M | No change |
| WES Western Midstream Partners L | 4.71% | 206,361 | $8.2M | Reduce -9.7% |
| SU Suncor Energy Inc. | 4.65% | 132,000 | $8.0M | No change |
| CNI Canadian Natl Railway Co. | 4.19% | 53,400 | $7.2M | No change |
| FTS Fortis Inc. | 3.55% | 86,000 | $6.1M | No change |
| EMA Emera Inc. | 2.60% | 66,500 | $4.5M | No change |
| PAGP Plains GP Holdings LP | 2.03% | 183,325 | $3.5M | Reduce -7.7% |
| HESM Hess Midstream LP Class A | 1.87% | 93,905 | $3.2M | Reduce -8.8% |
| KMI Kinder Morgan Inc. | 1.41% | 88,725 | $2.4M | Reduce -6.7% |
| TAC Transalta Corp. | 1.22% | 122,000 | $2.1M | No change |
| TRGP Targa Resources Corp. | 1.09% | 10,242 | $1.9M | No change |
| SOBO South Bow Corp. | 1.00% | 46,497 | $1.7M | No change |
| LNG Cheniere Energy Inc. | 0.28% | 2,497 | $485K | No change |
| CVE Cenovus Energy Inc. | 0.20% | 15,000 | $348K | No change |
| CQP Cheniere Energy Partners LP | 0.18% | 5,810 | $311K | No change |
| AM Antero Midstream Corp. | 0.17% | 16,910 | $301K | No change |
Portfolio Sells Q3 2025 → Q4 2025
| WMB Williams Cos Inc. | Reduce -9.5% | 8.69% | −0.89 |
| ET Energy Transfer LP | Reduce -9.3% | 7.65% | −0.66 |
| OKE Oneok Inc. | Reduce -9.2% | 6.01% | −0.22 |
| WES Western Midstream Partners L | Reduce -9.7% | 4.71% | −0.21 |
| EPD Enterprise Products Partners | Reduce -9.6% | 9.20% | −0.20 |
| HESM Hess Midstream LP Class A | Reduce -8.8% | 1.87% | −0.07 |
| KMI Kinder Morgan Inc. | Reduce -6.7% | 1.41% | −0.06 |
| PAGP Plains GP Holdings LP | Reduce -7.7% | 2.03% | +0.05 |
| MPLX MPLX LP | Reduce -9.1% | 9.99% | +0.25 |
Portfolio Buys Q3 2025 → Q4 2025
| None this quarter. | |||
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 15 | $108.9M | WMB, MPLX, EPD, ET, OKE |
| Q1 2026 | 16 | $109.6M | EPD, MPLX, WMB, ET, OKE |
| Q4 2025 | 25 | $172.9M | MPLX, EPD, WMB, ET, ENB |
| Q3 2025 | 25 | $182.6M | MPLX, WMB, EPD, ET, ENB |
| Q2 2025 | 25 | $179.5M | MPLX, WMB, EPD, ET, OKE |
| Q1 2025 | 24 | $183.0M | MPLX, EPD, WMB, ET, OKE |
| Q4 2024 | 24 | $175.1M | EPD, ET, MPLX, OKE, WMB |
| Q3 2024 | 23 | $163.6M | EPD, MPLX, OKE, ET, WMB |
| Q2 2024 | 23 | $156.3M | EPD, MPLX, ET, OKE, WMB |
| Q1 2024 | 23 | $154.9M | EPD, MPLX, ET, OKE, WMB |