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Heronetta Management, L.P.

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13F filer, CIK 1588225, NEW YORK, NY

Heronetta Management, L.P. reported $182,605,364 across 25 holdings for the quarter ended 2025-09-30, in a 13F-HR filed 2025-11-12. Its ten largest share positions make up 72.01% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000922423-25-000048

Period
2025-09-30
Reported value
$183M
Holdings
25
Top 10 weight
72.01%
New
0
Sold out
0

Largest buys vs the previous quarter

SecurityShares changeApprox. value
TACadded+37,000$703K
TRPadded+2,000$148K

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.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
OKEreduced-1,000-$73K

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, Q3 2025

Share positions as resolved from 13F-HR 0000922423-25-000048, largest first. % of portfolio is the value over $182,605,364, 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; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 358,364 shares; 2024Q4: 355,564 shares; 2025Q1: 356,064 shares; 2025Q2: 356,064 shares; 2025Q3: 356,064 shares 356,064$17.8M9.74%0Timeline
WMBWILLIAMS COS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 277,377 shares; 2024Q4: 277,377 shares; 2025Q1: 276,277 shares; 2025Q2: 276,277 shares; 2025Q3: 276,277 shares 276,277$17.5M9.58%0Timeline
EPDENTERPRISE PRODS PARTNERS LQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 558,648 shares; 2024Q4: 554,548 shares; 2025Q1: 549,248 shares; 2025Q2: 549,248 shares; 2025Q3: 549,248 shares 549,248$17.2M9.41%0Timeline
ETENERGY TRANSFER L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 891,554 shares; 2024Q4: 884,654 shares; 2025Q1: 884,154 shares; 2025Q2: 884,154 shares; 2025Q3: 884,154 shares 884,154$15.2M8.31%0Timeline
ENBENBRIDGE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 197,374 shares; 2024Q4: 197,374 shares; 2025Q1: 197,374 shares; 2025Q2: 193,266 shares; 2025Q3: 193,266 shares 193,266$13.3M7.26%0Timeline
OKEONEOK INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 158,252 shares; 2024Q4: 158,252 shares; 2025Q1: 156,802 shares; 2025Q2: 156,802 shares; 2025Q3: 155,802 shares 155,802$11.4M6.23%-1,000Timeline
PBAPEMBINA PIPELINE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 195,698 shares; 2024Q4: 197,698 shares; 2025Q1: 197,698 shares; 2025Q2: 197,698 shares; 2025Q3: 197,698 shares 197,698$10.8M5.94%0Timeline
TRPTC ENERGY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 127,486 shares; 2024Q4: 127,486 shares; 2025Q1: 127,486 shares; 2025Q2: 135,316 shares; 2025Q3: 137,316 shares 137,316$10.1M5.55%+2,000Timeline
CPCANADIAN PACIFIC KANSAS CITYQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 85,300 shares; 2024Q4: 87,300 shares; 2025Q1: 89,300 shares; 2025Q2: 89,300 shares; 2025Q3: 89,300 shares 89,300$9.26M5.07%0Timeline
WESWESTERN MIDSTREAM PARTNERS LQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 228,673 shares; 2024Q4: 228,673 shares; 2025Q1: 227,773 shares; 2025Q2: 228,586 shares; 2025Q3: 228,586 shares 228,586$8.98M4.92%0Timeline
CNQCANADIAN NAT RES LTD MED TERQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 193,600 shares; 2024Q4: 193,600 shares; 2025Q1: 193,600 shares; 2025Q2: 193,600 shares; 2025Q3: 193,600 shares 193,600$8.62M4.72%0Timeline
SUSUNCOR ENERGY INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 132,000 shares; 2024Q4: 132,000 shares; 2025Q1: 132,000 shares; 2025Q2: 132,000 shares; 2025Q3: 132,000 shares 132,000$7.69M4.21%0Timeline
CNICANADIAN NATL RY COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 52,000 shares; 2024Q4: 52,000 shares; 2025Q1: 53,400 shares; 2025Q2: 53,400 shares; 2025Q3: 53,400 shares 53,400$7.01M3.84%0Timeline
FTSFORTIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 86,000 shares; 2024Q4: 86,000 shares; 2025Q1: 86,000 shares; 2025Q2: 86,000 shares; 2025Q3: 86,000 shares 86,000$6.07M3.32%0Timeline
EMAEMERA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 66,500 shares; 2025Q3: 66,500 shares 66,500$4.44M2.43%0Timeline
PAGPPLAINS GP HLDGS L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 196,395 shares; 2024Q4: 196,395 shares; 2025Q1: 196,395 shares; 2025Q2: 198,525 shares; 2025Q3: 198,525 shares 198,525$3.62M1.98%0Timeline
HESMHESS MIDSTREAM LPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 104,455 shares; 2024Q4: 104,455 shares; 2025Q1: 102,955 shares; 2025Q2: 102,955 shares; 2025Q3: 102,955 shares 102,955$3.56M1.95%0Timeline
KMIKINDER MORGAN INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 95,125 shares; 2024Q4: 95,125 shares; 2025Q1: 95,125 shares; 2025Q2: 95,125 shares; 2025Q3: 95,125 shares 95,125$2.69M1.47%0Timeline
TACTRANSALTA CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 77,000 shares; 2024Q4: 77,000 shares; 2025Q1: 77,000 shares; 2025Q2: 85,000 shares; 2025Q3: 122,000 shares 122,000$2.32M1.27%+37,000Timeline
SOBOSOUTH BOW CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 40,497 shares; 2025Q1: 46,497 shares; 2025Q2: 46,497 shares; 2025Q3: 46,497 shares 46,497$1.81M0.99%0Timeline
TRGPTARGA RES CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 10,142 shares; 2024Q4: 10,142 shares; 2025Q1: 10,242 shares; 2025Q2: 10,242 shares; 2025Q3: 10,242 shares 10,242$1.72M0.94%0Timeline
LNGCHENIERE ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,113 shares; 2024Q4: 2,113 shares; 2025Q1: 2,213 shares; 2025Q2: 2,497 shares; 2025Q3: 2,497 shares 2,497$587K0.32%0Timeline
CVECENOVUS ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 15,000 shares; 2024Q4: 15,000 shares; 2025Q1: 15,000 shares; 2025Q2: 15,000 shares; 2025Q3: 15,000 shares 15,000$354K0.19%0Timeline
AMANTERO MIDSTREAM CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 16,910 shares; 2024Q4: 16,910 shares; 2025Q1: 16,910 shares; 2025Q2: 16,910 shares; 2025Q3: 16,910 shares 16,910$329K0.18%0Timeline
CQPCHENIERE ENERGY PARTNERS L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 5,810 shares; 2024Q4: 5,810 shares; 2025Q1: 5,810 shares; 2025Q2: 5,810 shares; 2025Q3: 5,810 shares 5,810$313K0.17%0Timeline

How Q3 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 0000922423-25-000048 base2025-11-12acceptance time not in the bulk data set