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Heronetta Management, L.P.

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13F filer, CIK 1588225, NEW YORK, NY

Heronetta Management, L.P. reported $179,537,386 across 25 holdings for the quarter ended 2025-06-30, in a 13F-HR filed 2025-08-06. Its ten largest share positions make up 72.63% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001140361-25-028999

Period
2025-06-30
Reported value
$180M
Holdings
25
Top 10 weight
72.63%
New
1
Sold out
0

Largest buys vs the previous quarter

SecurityShares changeApprox. value
EMAnew+66,500$4.15M
TRPadded+7,830$508K
TACadded+8,000$118K
LNGadded+284$69.2K
PAGPadded+2,130$41.4K

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
ENBreduced-4,108-$248K

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, Q2 2025

Share positions as resolved from 13F-HR 0001140361-25-028999, largest first. % of portfolio is the value over $179,537,386, 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; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 358,364 shares; 2024Q4: 355,564 shares; 2025Q1: 356,064 shares; 2025Q2: 356,064 shares 356,064$18.3M10.22%0Timeline
WMBWILLIAMS COS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 277,377 shares; 2024Q4: 277,377 shares; 2025Q1: 276,277 shares; 2025Q2: 276,277 shares 276,277$17.4M9.67%0Timeline
EPDENTERPRISE PRODS PARTNERS LQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 558,648 shares; 2024Q4: 554,548 shares; 2025Q1: 549,248 shares; 2025Q2: 549,248 shares 549,248$17M9.49%0Timeline
ETENERGY TRANSFER L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 891,554 shares; 2024Q4: 884,654 shares; 2025Q1: 884,154 shares; 2025Q2: 884,154 shares 884,154$16M8.93%0Timeline
OKEONEOK INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 158,252 shares; 2024Q4: 158,252 shares; 2025Q1: 156,802 shares; 2025Q2: 156,802 shares 156,802$12.8M7.13%0Timeline
ENBENBRIDGE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 197,374 shares; 2024Q4: 197,374 shares; 2025Q1: 197,374 shares; 2025Q2: 193,266 shares 193,266$11.7M6.51%-4,108Timeline
PBAPEMBINA PIPELINE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 195,698 shares; 2024Q4: 197,698 shares; 2025Q1: 197,698 shares; 2025Q2: 197,698 shares 197,698$9.87M5.5%0Timeline
CPCANADIAN PACIFIC KANSAS CITYQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 85,300 shares; 2024Q4: 87,300 shares; 2025Q1: 89,300 shares; 2025Q2: 89,300 shares 89,300$9.66M5.38%0Timeline
WESWESTERN MIDSTREAM PARTNERS LQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 228,673 shares; 2024Q4: 228,673 shares; 2025Q1: 227,773 shares; 2025Q2: 228,586 shares 228,586$8.85M4.93%+813Timeline
TRPTC ENERGY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 127,486 shares; 2024Q4: 127,486 shares; 2025Q1: 127,486 shares; 2025Q2: 135,316 shares 135,316$8.79M4.89%+7,830Timeline
CNQCANADIAN NAT RES LTD MED TERQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 193,600 shares; 2024Q4: 193,600 shares; 2025Q1: 193,600 shares; 2025Q2: 193,600 shares 193,600$8.29M4.62%0Timeline
CNICANADIAN NATL RY COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 52,000 shares; 2024Q4: 52,000 shares; 2025Q1: 53,400 shares; 2025Q2: 53,400 shares 53,400$7.58M4.22%0Timeline
SUSUNCOR ENERGY INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 132,000 shares; 2024Q4: 132,000 shares; 2025Q1: 132,000 shares; 2025Q2: 132,000 shares 132,000$6.73M3.75%0Timeline
FTSFORTIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 86,000 shares; 2024Q4: 86,000 shares; 2025Q1: 86,000 shares; 2025Q2: 86,000 shares 86,000$5.59M3.11%0Timeline
EMAEMERA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 66,500 shares 66,500$4.15M2.31%newTimeline
HESMHESS MIDSTREAM LPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 104,455 shares; 2024Q4: 104,455 shares; 2025Q1: 102,955 shares; 2025Q2: 102,955 shares 102,955$3.96M2.21%0Timeline
PAGPPLAINS GP HLDGS L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 196,395 shares; 2024Q4: 196,395 shares; 2025Q1: 196,395 shares; 2025Q2: 198,525 shares 198,525$3.86M2.15%+2,130Timeline
KMIKINDER MORGAN INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 95,125 shares; 2024Q4: 95,125 shares; 2025Q1: 95,125 shares; 2025Q2: 95,125 shares 95,125$2.8M1.56%0Timeline
TRGPTARGA RES CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 10,142 shares; 2024Q4: 10,142 shares; 2025Q1: 10,242 shares; 2025Q2: 10,242 shares 10,242$1.78M0.99%0Timeline
SOBOSOUTH BOW CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 40,497 shares; 2025Q1: 46,497 shares; 2025Q2: 46,497 shares 46,497$1.62M0.9%0Timeline
TACTRANSALTA CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 77,000 shares; 2024Q4: 77,000 shares; 2025Q1: 77,000 shares; 2025Q2: 85,000 shares 85,000$1.25M0.7%+8,000Timeline
LNGCHENIERE ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,113 shares; 2024Q4: 2,113 shares; 2025Q1: 2,213 shares; 2025Q2: 2,497 shares 2,497$608K0.34%+284Timeline
CQPCHENIERE ENERGY PARTNERS L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 5,810 shares; 2024Q4: 5,810 shares; 2025Q1: 5,810 shares; 2025Q2: 5,810 shares 5,810$326K0.18%0Timeline
AMANTERO MIDSTREAM CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 16,910 shares; 2024Q4: 16,910 shares; 2025Q1: 16,910 shares; 2025Q2: 16,910 shares 16,910$320K0.18%0Timeline
CVECENOVUS ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 15,000 shares; 2024Q4: 15,000 shares; 2025Q1: 15,000 shares; 2025Q2: 15,000 shares 15,000$278K0.15%0Timeline

How Q2 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 0001140361-25-028999 base2025-08-06acceptance time not in the bulk data set