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Heronetta Management, L.P.

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13F filer, CIK 1588225, NEW YORK, NY

Heronetta Management, L.P. reported $108,933,129 across 15 holdings for the quarter ended 2026-06-30, in a 13F-HR filed 2026-07-28. Its ten largest share positions make up 96.55% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000922423-26-000018

Changes against Q1 2026 are not shown: its report omitted holdings under a confidential treatment request (16 positions on file), so every position would read as new.

Period
2026-06-30
Reported value
$109M
Holdings
15
Top 10 weight
96.55%
New
Sold out

Holdings, Q2 2026

Share positions as resolved from 13F-HR 0000922423-26-000018, largest first. % of portfolio is the value over $108,933,129, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
WMBWILLIAMS COS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 277,377 shares; 2024Q4: 277,377 shares; 2025Q1: 276,277 shares; 2025Q2: 276,277 shares; 2025Q3: 276,277 shares; 2025Q4: 250,152 shares; 2026Q1: 251,402 shares; 2026Q2: 251,402 shares 251,402$18.7M17.16%Timeline
MPLXMPLX LPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 358,364 shares; 2024Q4: 355,564 shares; 2025Q1: 356,064 shares; 2025Q2: 356,064 shares; 2025Q3: 356,064 shares; 2025Q4: 323,639 shares; 2026Q1: 324,039 shares; 2026Q2: 324,039 shares 324,039$18.3M16.76%Timeline
EPDENTERPRISE PRODS PARTNERS LQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 558,648 shares; 2024Q4: 554,548 shares; 2025Q1: 549,248 shares; 2025Q2: 549,248 shares; 2025Q3: 549,248 shares; 2025Q4: 496,448 shares; 2026Q1: 495,048 shares; 2026Q2: 495,048 shares 495,048$18.2M16.71%Timeline
ETENERGY TRANSFER L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 891,554 shares; 2024Q4: 884,654 shares; 2025Q1: 884,154 shares; 2025Q2: 884,154 shares; 2025Q3: 884,154 shares; 2025Q4: 802,129 shares; 2026Q1: 799,229 shares; 2026Q2: 799,229 shares 799,229$15.3M14.03%Timeline
OKEONEOK INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 158,252 shares; 2024Q4: 158,252 shares; 2025Q1: 156,802 shares; 2025Q2: 156,802 shares; 2025Q3: 155,802 shares; 2025Q4: 141,402 shares; 2026Q1: 140,802 shares; 2026Q2: 140,802 shares 140,802$12.2M11.24%Timeline
WESWESTERN MIDSTREAM PARTNERS LQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 228,673 shares; 2024Q4: 228,673 shares; 2025Q1: 227,773 shares; 2025Q2: 228,586 shares; 2025Q3: 228,586 shares; 2025Q4: 206,361 shares; 2026Q1: 206,361 shares; 2026Q2: 206,361 shares 206,361$9.03M8.29%Timeline
PAGPPLAINS GP HLDGS L PQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 196,395 shares; 2024Q4: 196,395 shares; 2025Q1: 196,395 shares; 2025Q2: 198,525 shares; 2025Q3: 198,525 shares; 2025Q4: 183,325 shares; 2026Q1: 181,025 shares; 2026Q2: 181,025 shares 181,025$4.39M4.03%Timeline
HESMHESS MIDSTREAM LPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 104,455 shares; 2024Q4: 104,455 shares; 2025Q1: 102,955 shares; 2025Q2: 102,955 shares; 2025Q3: 102,955 shares; 2025Q4: 93,905 shares; 2026Q1: 92,505 shares; 2026Q2: 92,505 shares 92,505$3.48M3.19%Timeline
KMIKINDER MORGAN INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 95,125 shares; 2024Q4: 95,125 shares; 2025Q1: 95,125 shares; 2025Q2: 95,125 shares; 2025Q3: 95,125 shares; 2025Q4: 88,725 shares; 2026Q1: 88,725 shares; 2026Q2: 88,725 shares 88,725$2.84M2.6%Timeline
TRGPTARGA RES CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 10,142 shares; 2024Q4: 10,142 shares; 2025Q1: 10,242 shares; 2025Q2: 10,242 shares; 2025Q3: 10,242 shares; 2025Q4: 10,242 shares; 2026Q1: 10,342 shares; 2026Q2: 10,342 shares 10,342$2.77M2.55%Timeline
LNGCHENIERE ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 2,113 shares; 2024Q4: 2,113 shares; 2025Q1: 2,213 shares; 2025Q2: 2,497 shares; 2025Q3: 2,497 shares; 2025Q4: 2,497 shares; 2026Q1: 2,497 shares; 2026Q2: 3,897 shares 3,897$931K0.86%Timeline
ENBENBRIDGE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 197,374 shares; 2024Q4: 197,374 shares; 2025Q1: 197,374 shares; 2025Q2: 193,266 shares; 2025Q3: 193,266 shares; 2025Q4: 193,266 shares; 2026Q1: 15,507 shares; 2026Q2: 15,507 shares 15,507$841K0.77%Timeline
PBAPEMBINA PIPELINE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 195,698 shares; 2024Q4: 197,698 shares; 2025Q1: 197,698 shares; 2025Q2: 197,698 shares; 2025Q3: 197,698 shares; 2025Q4: 197,698 shares; 2026Q1: 17,698 shares; 2026Q2: 17,698 shares 17,698$819K0.75%Timeline
TRPTC ENERGY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 127,486 shares; 2024Q4: 127,486 shares; 2025Q1: 127,486 shares; 2025Q2: 135,316 shares; 2025Q3: 137,316 shares; 2025Q4: 137,316 shares; 2026Q1: 11,816 shares; 2026Q2: 11,816 shares 11,816$783K0.72%Timeline
AMANTERO MIDSTREAM CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 16,910 shares; 2024Q4: 16,910 shares; 2025Q1: 16,910 shares; 2025Q2: 16,910 shares; 2025Q3: 16,910 shares; 2025Q4: 16,910 shares; 2026Q1: 16,910 shares; 2026Q2: 16,910 shares 16,910$385K0.35%Timeline

How Q2 2026 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 0000922423-26-000018 base2026-07-28acceptance time not in the bulk data set

Filings

Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.

FilingSubjectFiledAcceptedIngested
13F-HR 0000922423-26-000018 Quarter ended 2026-06-302026-07-28acceptance time not in the bulk data set
13F-HR 0000922423-26-000014 Quarter ended 2026-03-312026-05-01acceptance time not in the bulk data set
13F-HR 0000922423-26-000012 Quarter ended 2025-12-312026-02-04acceptance time not in the bulk data set
13F-HR 0000922423-25-000048 Quarter ended 2025-09-302025-11-12acceptance time not in the bulk data set
13F-HR 0001140361-25-028999 Quarter ended 2025-06-302025-08-06acceptance time not in the bulk data set
13F-HR 0000922423-25-000035 Quarter ended 2025-03-312025-05-15acceptance time not in the bulk data set
13F-HR 0000922423-25-000016 Quarter ended 2024-12-312025-02-06acceptance time not in the bulk data set
13F-HR 0000922423-24-000071 Quarter ended 2024-09-302024-10-31acceptance time not in the bulk data set
13F-HR 0000922423-24-000054 Quarter ended 2024-06-302024-07-30acceptance time not in the bulk data set
13F-HR 0000922423-24-000035 Quarter ended 2024-03-312024-05-01acceptance time not in the bulk data set
13F-HR 0000922423-24-000013 Quarter ended 2023-12-312024-01-25acceptance time not in the bulk data set
13F-HR 0000922423-23-000086 Quarter ended 2023-09-302023-11-02acceptance time not in the bulk data set
13F-HR 0000922423-23-000080 Quarter ended 2023-06-302023-08-09acceptance time not in the bulk data set
13F-HR 0001140361-23-023858 Quarter ended 2023-03-312023-05-10acceptance time not in the bulk data set
13F-HR 0001567619-23-002229 Quarter ended 2022-12-312023-02-10acceptance time not in the bulk data set
13F-HR 0001567619-22-018838 Quarter ended 2022-09-302022-10-27acceptance time not in the bulk data set
13F-HR 0001567619-22-015019 Quarter ended 2022-06-302022-08-05acceptance time not in the bulk data set
13F-HR 0001567619-22-009172 Quarter ended 2022-03-312022-04-29acceptance time not in the bulk data set
13F-HR 0001567619-22-002420 Quarter ended 2021-12-312022-02-03acceptance time not in the bulk data set
13F-HR 0001567619-21-018785 Quarter ended 2021-09-302021-10-27acceptance time not in the bulk data set
13F-HR 0001567619-21-014390 Quarter ended 2021-06-302021-08-04acceptance time not in the bulk data set
13F-HR 0001567619-21-008696 Quarter ended 2021-03-312021-04-29acceptance time not in the bulk data set
13F-HR 0001567619-21-002768 Quarter ended 2020-12-312021-02-10acceptance time not in the bulk data set
13F-HR 0001567619-20-019096 Quarter ended 2020-09-302020-11-10acceptance time not in the bulk data set
13F-HR 0001567619-20-013682 Quarter ended 2020-06-302020-07-24acceptance time not in the bulk data set
13F-HR 0001567619-20-009382 Quarter ended 2020-03-312020-05-08acceptance time not in the bulk data set
13F-HR 0001567619-20-001783 Quarter ended 2019-12-312020-01-31acceptance time not in the bulk data set
13F-HR 0001567619-19-020811 Quarter ended 2019-09-302019-11-08acceptance time not in the bulk data set
13F-HR 0001567619-19-016482 Quarter ended 2019-06-302019-08-13acceptance time not in the bulk data set
13F-HR 0001567619-19-009396 Quarter ended 2019-03-312019-04-30acceptance time not in the bulk data set
13F-HR 0001567619-19-003163 Quarter ended 2018-12-312019-02-12acceptance time not in the bulk data set
13F-HR 0001567619-18-005616 Quarter ended 2018-09-302018-11-13acceptance time not in the bulk data set
13F-HR 0001140361-18-034476 Quarter ended 2018-06-302018-07-31acceptance time not in the bulk data set
13F-HR 0001140361-18-023388 Quarter ended 2018-03-312018-05-14acceptance time not in the bulk data set
13F-HR 0001140361-18-007690 Quarter ended 2017-12-312018-02-14acceptance time not in the bulk data set
13F-HR 0001140361-17-040306 Quarter ended 2017-09-302017-10-31acceptance time not in the bulk data set
13F-HR 0001140361-17-031250 Quarter ended 2017-06-302017-08-11acceptance time not in the bulk data set
13F-HR 0001140361-17-019084 Quarter ended 2017-03-312017-05-09acceptance time not in the bulk data set
13F-HR 0001140361-17-006149 Quarter ended 2016-12-312017-02-13acceptance time not in the bulk data set
13F-HR 0001140361-16-086146 Quarter ended 2016-09-302016-11-14acceptance time not in the bulk data set
13F-HR 0001140361-16-076347 Quarter ended 2016-06-302016-08-15acceptance time not in the bulk data set
13F-HR 0001140361-16-064976 Quarter ended 2016-03-312016-05-13acceptance time not in the bulk data set
13F-HR 0001140361-16-050391 Quarter ended 2015-12-312016-02-05acceptance time not in the bulk data set
13F-HR 0001140361-15-040729 Quarter ended 2015-09-302015-11-12acceptance time not in the bulk data set
13F-HR 0001140361-15-031719 Quarter ended 2015-06-302015-08-13acceptance time not in the bulk data set
13F-HR 0001140361-15-018972 Quarter ended 2015-03-312015-05-12acceptance time not in the bulk data set
13F-HR 0001140361-15-005868 Quarter ended 2014-12-312015-02-12acceptance time not in the bulk data set
13F-HR 0001140361-14-040849 Quarter ended 2014-09-302014-11-10acceptance time not in the bulk data set
13F-HR 0001140361-14-031998 Quarter ended 2014-06-302014-08-13acceptance time not in the bulk data set
13F-HR 0001140361-14-020165 Quarter ended 2014-03-312014-05-12acceptance time not in the bulk data set
13F-HR 0001140361-14-003166 Quarter ended 2013-12-312014-01-24acceptance time not in the bulk data set
13F-HR 0001140361-13-043135 Quarter ended 2013-09-302013-11-15acceptance time not in the bulk data set
13F-HR 0001140361-13-043072 Quarter ended 2013-03-312013-11-15acceptance time not in the bulk data set
13F-HR 0001140361-13-043100 Quarter ended 2013-06-302013-11-15acceptance time not in the bulk data set
13F-HR 0001140361-13-042380 Quarter ended 2012-12-312013-11-14acceptance time not in the bulk data set