Heronetta Management, L.P.
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 1, 2026), Heronetta Management, L.P. reported 16 stock positions worth $109.6 million. Its top holding was Enterprise Products Partners (EPD) at 17.1% of the portfolio, followed by MPLX (MPLX, 16.9%) and Williams Cos (WMB, 16.7%). Compared with Q4 2025, it sold out of 9, added to 3 and reduced 8. The biggest buy was Williams Cos (WMB, shares +1%) and the biggest sale Enbridge (ENB, shares −92%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001588225
- Portfolio Value
- $109.6M (Q1 2026)
- SEC Filing
- 0000922423-26-000014 ↗ filed May 1, 2026
Holdings Value
Holdings 16 stocks · $109.6M
| EPD Enterprise Products Partners | 17.10% | 495,048 | $18.7M | Reduce -0.3% |
| MPLX MPLX LP | 16.88% | 324,039 | $18.5M | Add +0.1% |
| WMB Williams Cos Inc. | 16.70% | 251,402 | $18.3M | Add +0.5% |
| ET Energy Transfer LP | 14.08% | 799,229 | $15.4M | Reduce -0.4% |
| OKE Oneok Inc. | 11.62% | 140,802 | $12.7M | Reduce -0.4% |
| WES Western Midstream Partners L | 7.75% | 206,361 | $8.5M | No change |
| PAGP Plains GP Holdings LP | 4.01% | 181,025 | $4.4M | Reduce -1.3% |
| HESM Hess Midstream LP Class A | 3.28% | 92,505 | $3.6M | Reduce -1.5% |
| KMI Kinder Morgan Inc. | 2.72% | 88,725 | $3.0M | No change |
| TRGP Targa Resources Corp. | 2.37% | 10,342 | $2.6M | Add +1.0% |
| ENB Enbridge Inc. | 0.77% | 15,507 | $840K | Reduce -92.0% |
| PBA Pembina Pipeline Corp. | 0.72% | 17,698 | $792K | Reduce -91.0% |
| TRP TC Energy Corp. | 0.68% | 11,816 | $740K | Reduce -91.4% |
| LNG Cheniere Energy Inc. | 0.65% | 2,497 | $709K | No change |
| AM Antero Midstream Corp. | 0.35% | 16,910 | $386K | No change |
| CQP Cheniere Energy Partners LP | 0.34% | 5,810 | $376K | No change |
Portfolio Sells Q4 2025 → Q1 2026
| ENB Enbridge Inc. | Reduce -92.0% | 0.77% | −6.41 |
| CP Canadian Pacific Kansas City | Sold out | 0.00% | −5.22 |
| CNQ Canadian Natural Resources | Sold out | 0.00% | −5.20 |
| TRP TC Energy Corp. | Reduce -91.4% | 0.68% | −5.18 |
| PBA Pembina Pipeline Corp. | Reduce -91.0% | 0.72% | −5.11 |
| SU Suncor Energy Inc. | Sold out | 0.00% | −4.65 |
| CNI Canadian Natl Railway Co. | Sold out | 0.00% | −4.19 |
| FTS Fortis Inc. | Sold out | 0.00% | −3.55 |
| EMA Emera Inc. | Sold out | 0.00% | −2.60 |
| TAC Transalta Corp. | Sold out | 0.00% | −1.22 |
| SOBO South Bow Corp. | Sold out | 0.00% | −1.00 |
| CVE Cenovus Energy Inc. | Sold out | 0.00% | −0.20 |
| HESM Hess Midstream LP Class A | Reduce -1.5% | 3.28% | +1.41 |
| PAGP Plains GP Holdings LP | Reduce -1.3% | 4.01% | +1.98 |
| OKE Oneok Inc. | Reduce -0.4% | 11.62% | +5.61 |
| ET Energy Transfer LP | Reduce -0.4% | 14.08% | +6.43 |
| EPD Enterprise Products Partners | Reduce -0.3% | 17.10% | +7.89 |
Portfolio Buys Q4 2025 → Q1 2026
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 |