Heronetta Management, L.P.
In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 6, 2025), Heronetta Management, L.P. reported 25 stock positions worth $179.5 million. Its top holding was MPLX (MPLX) at 10.2% of the portfolio, followed by Williams Cos (WMB, 9.7%) and Enterprise Products Partners (EPD, 9.5%). Compared with Q1 2025, it opened 1 new position, added to 5 and reduced 1. The biggest buy was a new position in Emera (EMA) and the biggest sale Enbridge (ENB, shares −2%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001588225
- Portfolio Value
- $179.5M (Q2 2025)
- SEC Filing
- 0001140361-25-028999 ↗ filed Aug 6, 2025
Holdings Value
Holdings 25 stocks · $179.5M
| MPLX MPLX LP | 10.22% | 356,064 | $18.3M | No change |
| WMB Williams Cos Inc. | 9.67% | 276,277 | $17.4M | No change |
| EPD Enterprise Products Partners | 9.49% | 549,248 | $17.0M | No change |
| ET Energy Transfer LP | 8.93% | 884,154 | $16.0M | No change |
| OKE Oneok Inc. | 7.13% | 156,802 | $12.8M | No change |
| ENB Enbridge Inc. | 6.51% | 193,266 | $11.7M | Reduce -2.1% |
| PBA Pembina Pipeline Corp. | 5.50% | 197,698 | $9.9M | No change |
| CP Canadian Pacific Kansas City | 5.38% | 89,300 | $9.7M | No change |
| WES Western Midstream Partners L | 4.93% | 228,586 | $8.8M | Add +0.4% |
| TRP TC Energy Corp. | 4.89% | 135,316 | $8.8M | Add +6.1% |
| CNQ Canadian Natural Resources | 4.62% | 193,600 | $8.3M | No change |
| CNI Canadian Natl Railway Co. | 4.22% | 53,400 | $7.6M | No change |
| SU Suncor Energy Inc. | 3.75% | 132,000 | $6.7M | No change |
| FTS Fortis Inc. | 3.11% | 86,000 | $5.6M | No change |
| EMA Emera Inc. | 2.31% | 66,500 | $4.1M | New |
| HESM Hess Midstream LP Class A | 2.21% | 102,955 | $4.0M | No change |
| PAGP Plains GP Holdings LP | 2.15% | 198,525 | $3.9M | Add +1.1% |
| KMI Kinder Morgan Inc. | 1.56% | 95,125 | $2.8M | No change |
| TRGP Targa Resources Corp. | 0.99% | 10,242 | $1.8M | No change |
| SOBO South Bow Corp. | 0.90% | 46,497 | $1.6M | No change |
| TAC Transalta Corp. | 0.70% | 85,000 | $1.2M | Add +10.4% |
| LNG Cheniere Energy Inc. | 0.34% | 2,497 | $608K | Add +12.8% |
| CQP Cheniere Energy Partners LP | 0.18% | 5,810 | $326K | No change |
| AM Antero Midstream Corp. | 0.18% | 16,910 | $320K | No change |
| CVE Cenovus Energy Inc. | 0.15% | 15,000 | $278K | No change |
Portfolio Sells Q1 2025 → Q2 2025
| ENB Enbridge Inc. | Reduce -2.1% | 6.51% | −0.21 |
Portfolio Buys Q1 2025 → Q2 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 |