What does Heronetta Management, L.P. hold?

Heronetta Management, L.P.'s largest disclosed positions on the most recent Form 13F-HR filing on SEC EDGAR include WMB, MPLX, EPD. Full top-holdings list, quarter-over-quarter position changes, and sector allocation breakdown are available at https://13fpro.ai/research/fund/1588225.

What is Heronetta Management, L.P.'s AUM?

Heronetta Management, L.P. reported approximately $108.9M in 13F-reportable AUM as of 2026-06-30. This figure reflects long US-listed positions disclosed on Form 13F-HR and excludes non-13F-reportable holdings (cash, short positions, certain derivatives, and non-US securities). Separately, the firm reported $253.6M in total regulatory AUM (RAUM) on its most recent Form ADV filing.

Where does 13F Pro source Heronetta Management, L.P.'s holdings?

All Heronetta Management, L.P. holdings data comes directly from SEC EDGAR Form 13F-HR filings under CIK 1588225. Data refreshes automatically each quarter as new 13F filings are submitted (typically within 45 days of quarter-end). 13F Pro applies no third-party rewrites or estimates.

How often is Heronetta Management, L.P.'s 13F data updated on 13F Pro?

Heronetta Management, L.P.'s holdings update on 13F Pro within hours of each new Form 13F-HR filing on SEC EDGAR. Quarterly position changes, accumulation/distribution flags, and sector allocation are recalculated on each refresh.

Heronetta Management, L.P.

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1588225

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13F Reported Value

ⓘ

$108.9M

Holdings

Latest Filing

2026-06-30

Filing Quarter

Q2 2026

Portfolio Overview

Heronetta Management, L.P. disclosed 15 positions worth $108.9M in its Form 13F-HR for Q2 2026, led by $WMB (WILLIAMS COMPANIES, INC.) at 17.2% of the equity portfolio, followed by $MPLX and $EPD. During the quarter the fund opened 0 new positions and exited 1 and a full exit from $CQP. The portfolio is most concentrated in Energy (100.0% of disclosed assets). All figures are sourced directly from Heronetta Management, L.P.’s Form 13F-HR filing with the SEC under CIK 1588225.

AI Fund Analysis

Stable

Sector Allocation

Energy

AUM History

Top Equity Holdings by Value

Quarterly Activity — Q2 2026

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Top Holdings

AI Quality Scored

WILLIAMS COMPANIES, INC.
$WMB
64.3#554
Quality
$18.7M251,402 sh
MPLX LP
$MPLX
70.0#233
Quality
$18.3M324,039 sh
ENTERPRISE PRODUCTS PARTNERS L.P.
$EPD
61.4#780
Quality
$18.2M495,048 sh
Energy Transfer LP
$ET
64.4
Quality
$15.3M799,229 sh
ONEOK INC /NEW/
$OKE
71.7
Quality
$12.2M140,802 sh
Western Midstream Partners, LP
$WES
71.0
Quality
$9.0M206,361 sh
PLAINS GP HOLDINGS LP
$PAGP
55.1
Quality
$4.4M181,025 sh
Hess Midstream LP
$HESM
71.3
Quality
$3.5M92,505 sh
KINDER MORGAN, INC.
$KMI
71.3
Quality
$2.8M88,725 sh
Targa Resources Corp.
$TRGP
63.3
Quality
$2.8M10,342 sh

Company	Quality	Value	Shares
WILLIAMS COMPANIES, INC.$WMB	64.3#554	$18.7M	251,402
MPLX LP$MPLX	70.0#233	$18.3M	324,039
ENTERPRISE PRODUCTS PARTNERS L.P.$EPD	61.4#780	$18.2M	495,048
Energy Transfer LP$ET	64.4	$15.3M	799,229
ONEOK INC /NEW/$OKE	71.7	$12.2M	140,802
Western Midstream Partners, LP$WES	71.0	$9.0M	206,361
PLAINS GP HOLDINGS LP$PAGP	55.1	$4.4M	181,025
Hess Midstream LP$HESM	71.3	$3.5M	92,505
KINDER MORGAN, INC.$KMI	71.3	$2.8M	88,725
Targa Resources Corp.$TRGP	63.3	$2.8M	10,342

Unlock AI quality scores for every holding

32-signal composite ranking on each of Heronetta Management, L.P.'s 15 positions.

Showing top 10 of 15 holdings.

Sector Allocation

Energy

$108.9M

Full Holdings — Heronetta Management, L.P. (Q2 2026)

All 15 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.

#	Ticker	Company	Value	Weight	QoQ	Quality
1	$WMB	WILLIAMS COMPANIES, INC.	$18.7M	17.2%	+0%	64.3
2	$MPLX	MPLX LP	$18.3M	16.8%	+0%	70
3	$EPD	ENTERPRISE PRODUCTS PARTNERS L.P.	$18.2M	16.7%	+0%	61.4
4	$ET	Energy Transfer LP	$15.3M	14.0%	+0%	64.4
5	$OKE	ONEOK INC /NEW/	$12.2M	11.2%	+0%	71.7
6	$WES	Western Midstream Partners, LP	$9.0M	8.3%	+0%	71
7	$PAGP	PLAINS GP HOLDINGS LP	$4.4M	4.0%	+0%	55.1
8	$HESM	Hess Midstream LP	$3.5M	3.2%	+0%	71.3
9	$KMI	KINDER MORGAN, INC.	$2.8M	2.6%	+0%	71.3
10	$TRGP	Targa Resources Corp.	$2.8M	2.5%	+0%	63.3
11	$LNG	Cheniere Energy, Inc.	$931,422	0.9%	+56%	66.5
12	$ENB	ENBRIDGE INC	$840,634	0.8%	+0%	66.7
13	$PBA	PEMBINA PIPELINE CORP	$818,533	0.8%	+0%	—
14	$TRP	TC ENERGY CORP	$783,283	0.7%	+0%	—
15	$AM	Antero Midstream Corp	$384,703	0.3%	+0%	65.4

Exited Positions (1)

$CQP Cheniere Energy Partners, L.P.

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AI-Powered Hedge Fund Analysis: Heronetta Management, L.P.

13F Pro is an AI hedge fund tracker and stock research platform. For Heronetta Management, L.P. (SEC CIK: 1588225), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in Heronetta Management, L.P.'s portfolio is scored on a 32-signal AI quality ranking (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.