Heronetta Management, L.P.
In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 12, 2025), Heronetta Management, L.P. reported 25 stock positions worth $182.6 million. Its top holding was MPLX (MPLX) at 9.7% of the portfolio, followed by Williams Cos (WMB, 9.6%) and Enterprise Products Partners (EPD, 9.4%). Compared with Q2 2025, it added to 2 and reduced 1. The biggest buy was TC Energy (TRP, shares +1%) and the biggest sale Oneok (OKE, shares −1%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001588225
- Portfolio Value
- $182.6M (Q3 2025)
- SEC Filing
- 0000922423-25-000048 ↗ filed Nov 12, 2025
Holdings Value
Holdings 25 stocks · $182.6M
| MPLX MPLX LP | 9.74% | 356,064 | $17.8M | No change |
| WMB Williams Cos Inc. | 9.58% | 276,277 | $17.5M | No change |
| EPD Enterprise Products Partners | 9.41% | 549,248 | $17.2M | No change |
| ET Energy Transfer LP | 8.31% | 884,154 | $15.2M | No change |
| ENB Enbridge Inc. | 7.26% | 193,266 | $13.3M | No change |
| OKE Oneok Inc. | 6.23% | 155,802 | $11.4M | Reduce -0.6% |
| PBA Pembina Pipeline Corp. | 5.94% | 197,698 | $10.8M | No change |
| TRP TC Energy Corp. | 5.55% | 137,316 | $10.1M | Add +1.5% |
| CP Canadian Pacific Kansas City | 5.07% | 89,300 | $9.3M | No change |
| WES Western Midstream Partners L | 4.92% | 228,586 | $9.0M | No change |
| CNQ Canadian Natural Resources | 4.72% | 193,600 | $8.6M | No change |
| SU Suncor Energy Inc. | 4.21% | 132,000 | $7.7M | No change |
| CNI Canadian Natl Railway Co. | 3.84% | 53,400 | $7.0M | No change |
| FTS Fortis Inc. | 3.32% | 86,000 | $6.1M | No change |
| EMA Emera Inc. | 2.43% | 66,500 | $4.4M | No change |
| PAGP Plains GP Holdings LP | 1.98% | 198,525 | $3.6M | No change |
| HESM Hess Midstream LP Class A | 1.95% | 102,955 | $3.6M | No change |
| KMI Kinder Morgan Inc. | 1.47% | 95,125 | $2.7M | No change |
| TAC Transalta Corp. | 1.27% | 122,000 | $2.3M | Add +43.5% |
| SOBO South Bow Corp. | 0.99% | 46,497 | $1.8M | No change |
| TRGP Targa Resources Corp. | 0.94% | 10,242 | $1.7M | No change |
| LNG Cheniere Energy Inc. | 0.32% | 2,497 | $587K | No change |
| CVE Cenovus Energy Inc. | 0.19% | 15,000 | $354K | No change |
| AM Antero Midstream Corp. | 0.18% | 16,910 | $329K | No change |
| CQP Cheniere Energy Partners LP | 0.17% | 5,810 | $313K | No change |
Portfolio Sells Q2 2025 → Q3 2025
| OKE Oneok Inc. | Reduce -0.6% | 6.23% | −0.90 |
Portfolio Buys Q2 2025 → Q3 2025
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 |