Heronetta Management, L.P. — 13F Holdings & Portfolio
CIK 1588225 · latest 13F-HR filed 2026-07-28
Heronetta Management, L.P. manages $108.9M in 13F-reported U.S. long-equity assets across 15 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are WMB (17.16%), MPLX (16.76%), EPD (16.71%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 0 new positions, exited 1, added to 4, and trimmed 0.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
SUITE 1505
NEW YORK, NY 10065
$108.9M
Long-equity book
15
Distinct positions
2026-06-30
Filed 2026-07-28
+0 / −1 / ↑4 / ↓0
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- WESTERN MIDSTREAM PARTNERS L$534.5K +6.3%
- CHENIERE ENERGY INC$222.9K +31.5%
- TARGA RES CORP$180.1K +6.9%
- TC ENERGY CORP$43.6K +5.9%
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | WILLIAMS COS INC | WMB | 969457100 | $18.7M | 17.16% | 251,402 | SH |
| 2 | MPLX LP | MPLX | 55336V100 | $18.3M | 16.76% | 324,039 | SH |
| 3 | ENTERPRISE PRODS PARTNERS L | EPD | 293792107 | $18.2M | 16.71% | 495,048 | SH |
| 4 | ENERGY TRANSFER L P | ET | 29273V100 | $15.3M | 14.03% | 799,229 | SH |
| 5 | ONEOK INC NEW | OKE | 682680103 | $12.2M | 11.24% | 140,802 | SH |
| 6 | WESTERN MIDSTREAM PARTNERS L | WES | 958669103 | $9.0M | 8.29% | 206,361 | SH |
| 7 | PLAINS GP HLDGS L P | PAGP | 72651A207 | $4.4M | 4.03% | 181,025 | SH |
| 8 | HESS MIDSTREAM LP | HESM | 428103105 | $3.5M | 3.19% | 92,505 | SH |
| 9 | KINDER MORGAN INC DEL | KMI | 49456B101 | $2.8M | 2.60% | 88,725 | SH |
| 10 | TARGA RES CORP | TRGP | 87612G101 | $2.8M | 2.55% | 10,342 | SH |
| 11 | CHENIERE ENERGY INC | LNG | 16411R208 | $931.4K | 0.86% | 3,897 | SH |
| 12 | ENBRIDGE INC | ENB | 29250N105 | $840.6K | 0.77% | 15,507 | SH |
| 13 | PEMBINA PIPELINE CORP | PBA | 706327103 | $818.5K | 0.75% | 17,698 | SH |
| 14 | TC ENERGY CORP | TRP | 87807B107 | $783.3K | 0.72% | 11,816 | SH |
| 15 | ANTERO MIDSTREAM CORP | AM | 03676B102 | $384.7K | 0.35% | 16,910 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-07-28 | $108.9M | 15 | 0000922423-26-000018 |
| 2026-03-31 | 2026-05-01 | $109.6M | 16 | 0000922423-26-000014 |
| 2025-12-31 | 2026-02-04 | $172.9M | 25 | 0000922423-26-000012 |