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Heronetta Management, L.P.

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13F filer, CIK 1588225, NEW YORK, NY

Heronetta Management, L.P. reported $172,946,622 across 25 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-02-04. Its ten largest share positions make up 70.83% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000922423-26-000012

Period
2025-12-31
Reported value
$173M
Holdings
25
Top 10 weight
70.83%
New
0
Sold out
0

Largest buys vs the previous quarter

None.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
MPLXreduced-32,425-$1.73M
EPDreduced-52,800-$1.69M
WMBreduced-26,125-$1.57M
ETreduced-82,025-$1.35M
OKEreduced-14,400-$1.06M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q4 2025

Share positions as resolved from 13F-HR 0000922423-26-000012, largest first. % of portfolio is the value over $172,946,622, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
MPLXMPLX LPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 358,364 shares; 2024Q4: 355,564 shares; 2025Q1: 356,064 shares; 2025Q2: 356,064 shares; 2025Q3: 356,064 shares; 2025Q4: 323,639 shares 323,639$17.3M9.99%-32,425Timeline
EPDENTERPRISE PRODS PARTNERS LQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 558,648 shares; 2024Q4: 554,548 shares; 2025Q1: 549,248 shares; 2025Q2: 549,248 shares; 2025Q3: 549,248 shares; 2025Q4: 496,448 shares 496,448$15.9M9.2%-52,800Timeline
WMBWILLIAMS COS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 277,377 shares; 2024Q4: 277,377 shares; 2025Q1: 276,277 shares; 2025Q2: 276,277 shares; 2025Q3: 276,277 shares; 2025Q4: 250,152 shares 250,152$15M8.69%-26,125Timeline
ETENERGY TRANSFER L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 891,554 shares; 2024Q4: 884,654 shares; 2025Q1: 884,154 shares; 2025Q2: 884,154 shares; 2025Q3: 884,154 shares; 2025Q4: 802,129 shares 802,129$13.2M7.65%-82,025Timeline
ENBENBRIDGE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 197,374 shares; 2024Q4: 197,374 shares; 2025Q1: 197,374 shares; 2025Q2: 193,266 shares; 2025Q3: 193,266 shares; 2025Q4: 193,266 shares 193,266$12.4M7.18%0Timeline
OKEONEOK INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 158,252 shares; 2024Q4: 158,252 shares; 2025Q1: 156,802 shares; 2025Q2: 156,802 shares; 2025Q3: 155,802 shares; 2025Q4: 141,402 shares 141,402$10.4M6.01%-14,400Timeline
TRPTC ENERGY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 127,486 shares; 2024Q4: 127,486 shares; 2025Q1: 127,486 shares; 2025Q2: 135,316 shares; 2025Q3: 137,316 shares; 2025Q4: 137,316 shares 137,316$10.1M5.85%0Timeline
PBAPEMBINA PIPELINE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 195,698 shares; 2024Q4: 197,698 shares; 2025Q1: 197,698 shares; 2025Q2: 197,698 shares; 2025Q3: 197,698 shares; 2025Q4: 197,698 shares 197,698$10.1M5.83%0Timeline
CPCANADIAN PACIFIC KANSAS CITYQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 85,300 shares; 2024Q4: 87,300 shares; 2025Q1: 89,300 shares; 2025Q2: 89,300 shares; 2025Q3: 89,300 shares; 2025Q4: 89,300 shares 89,300$9.02M5.22%0Timeline
CNQCANADIAN NAT RES LTD MED TERQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 193,600 shares; 2024Q4: 193,600 shares; 2025Q1: 193,600 shares; 2025Q2: 193,600 shares; 2025Q3: 193,600 shares; 2025Q4: 193,600 shares 193,600$9M5.2%0Timeline
WESWESTERN MIDSTREAM PARTNERS LQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 228,673 shares; 2024Q4: 228,673 shares; 2025Q1: 227,773 shares; 2025Q2: 228,586 shares; 2025Q3: 228,586 shares; 2025Q4: 206,361 shares 206,361$8.15M4.71%-22,225Timeline
SUSUNCOR ENERGY INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 132,000 shares; 2024Q4: 132,000 shares; 2025Q1: 132,000 shares; 2025Q2: 132,000 shares; 2025Q3: 132,000 shares; 2025Q4: 132,000 shares 132,000$8.04M4.65%0Timeline
CNICANADIAN NATL RY COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 52,000 shares; 2024Q4: 52,000 shares; 2025Q1: 53,400 shares; 2025Q2: 53,400 shares; 2025Q3: 53,400 shares; 2025Q4: 53,400 shares 53,400$7.25M4.19%0Timeline
FTSFORTIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 86,000 shares; 2024Q4: 86,000 shares; 2025Q1: 86,000 shares; 2025Q2: 86,000 shares; 2025Q3: 86,000 shares; 2025Q4: 86,000 shares 86,000$6.14M3.55%0Timeline
EMAEMERA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 66,500 shares; 2025Q3: 66,500 shares; 2025Q4: 66,500 shares 66,500$4.5M2.6%0Timeline
PAGPPLAINS GP HLDGS L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 196,395 shares; 2024Q4: 196,395 shares; 2025Q1: 196,395 shares; 2025Q2: 198,525 shares; 2025Q3: 198,525 shares; 2025Q4: 183,325 shares 183,325$3.51M2.03%-15,200Timeline
HESMHESS MIDSTREAM LPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 104,455 shares; 2024Q4: 104,455 shares; 2025Q1: 102,955 shares; 2025Q2: 102,955 shares; 2025Q3: 102,955 shares; 2025Q4: 93,905 shares 93,905$3.24M1.87%-9,050Timeline
KMIKINDER MORGAN INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 95,125 shares; 2024Q4: 95,125 shares; 2025Q1: 95,125 shares; 2025Q2: 95,125 shares; 2025Q3: 95,125 shares; 2025Q4: 88,725 shares 88,725$2.44M1.41%-6,400Timeline
TACTRANSALTA CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 77,000 shares; 2024Q4: 77,000 shares; 2025Q1: 77,000 shares; 2025Q2: 85,000 shares; 2025Q3: 122,000 shares; 2025Q4: 122,000 shares 122,000$2.12M1.22%0Timeline
TRGPTARGA RES CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 10,142 shares; 2024Q4: 10,142 shares; 2025Q1: 10,242 shares; 2025Q2: 10,242 shares; 2025Q3: 10,242 shares; 2025Q4: 10,242 shares 10,242$1.89M1.09%0Timeline
SOBOSOUTH BOW CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 40,497 shares; 2025Q1: 46,497 shares; 2025Q2: 46,497 shares; 2025Q3: 46,497 shares; 2025Q4: 46,497 shares 46,497$1.73M1%0Timeline
LNGCHENIERE ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,113 shares; 2024Q4: 2,113 shares; 2025Q1: 2,213 shares; 2025Q2: 2,497 shares; 2025Q3: 2,497 shares; 2025Q4: 2,497 shares 2,497$485K0.28%0Timeline
CVECENOVUS ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 15,000 shares; 2024Q4: 15,000 shares; 2025Q1: 15,000 shares; 2025Q2: 15,000 shares; 2025Q3: 15,000 shares; 2025Q4: 15,000 shares 15,000$348K0.2%0Timeline
CQPCHENIERE ENERGY PARTNERS L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 5,810 shares; 2024Q4: 5,810 shares; 2025Q1: 5,810 shares; 2025Q2: 5,810 shares; 2025Q3: 5,810 shares; 2025Q4: 5,810 shares 5,810$311K0.18%0Timeline
AMANTERO MIDSTREAM CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 16,910 shares; 2024Q4: 16,910 shares; 2025Q1: 16,910 shares; 2025Q2: 16,910 shares; 2025Q3: 16,910 shares; 2025Q4: 16,910 shares 16,910$301K0.17%0Timeline

How Q4 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0000922423-26-000012 base2026-02-04acceptance time not in the bulk data set