Heronetta Management, L.P.

13F filer · CIK 0001588225

Reported Jul 28, 2026

13F portfolio value$109MU.S. long equity reported on 13F

Positions15Not reported new · 1 closed

Net flow last quarterNot reportedBuys minus sells

Top 10 positions weight96.5%Concentration

Holdings

13F · last 4 quarters free

Scroll for earlier quarters

Company	Value	% of portfolio	% of company	POSITION CHANGE qoq %	First reported
Q2 2026Reported Jul 28, 202615 positions
WMBWilliams Companies, Inc.	$18.7M	17.16%	0.02%	Not reported	Q3 2013
MPLXMPLX LP	$18.3M	16.76%	0.03%	Not reported	Q4 2012
EPDEnterprise Products Partners L.P.	$18.2M	16.71%	0.02%	Not reported	Q4 2012
ETEnergy Transfer LP	$15.3M	14.03%	0.02%	Not reported	Q4 2012
OKEOneok Inc	$12.2M	11.24%	0.02%	Not reported	Q3 2013
WESWestern Midstream Partners, LP	$9.03M	8.29%	0.05%	Not reported	Q4 2012
PAGPPlains GP Holdings LP	$4.39M	4.03%	0.09%	Not reported	Q4 2013
HESMHess Midstream LP	$3.48M	3.19%	0.07%	Not reported	Q4 2018
KMIKinder Morgan, Inc.	$2.84M	2.60%	0.00%	Not reported	Q3 2014
TRGPTarga Resources Corp.	$2.77M	2.55%	0.00%	Not reported	Q1 2013
LNGCheniere Energy, Inc.	$931K	0.86%	0.00%	+56.1%	Q4 2022
ENBEnbridge Inc	$841K	0.77%	0.00%	Not reported	Q4 2012
PBAPembina Pipeline Corp	$819K	0.75%	0.00%	Not reported	Q4 2012
TRPTC Energy Corp	$783K	0.72%	Not reported	Not reported	Q3 2020
AMAntero Midstream Corp	$385K	0.35%	0.00%	Not reported	Q4 2016
Q1 2026Reported May 1, 202616 positions
EPDEnterprise Products Partners L.P.	$18.7M	17.10%	0.02%	-0.3%	Q4 2012
MPLXMPLX LP	$18.5M	16.88%	0.03%	+0.1%	Q4 2012
WMBWilliams Companies, Inc.	$18.3M	16.70%	0.02%	+0.5%	Q3 2013
ETEnergy Transfer LP	$15.4M	14.08%	0.02%	-0.4%	Q4 2012
OKEOneok Inc	$12.7M	11.62%	0.02%	-0.4%	Q3 2013
WESWestern Midstream Partners, LP	$8.5M	7.75%	0.05%	Not reported	Q4 2012
PAGPPlains GP Holdings LP	$4.4M	4.01%	0.09%	-1.3%	Q4 2013
HESMHess Midstream LP	$3.6M	3.28%	0.07%	-1.5%	Q4 2018
KMIKinder Morgan, Inc.	$2.97M	2.72%	0.00%	Not reported	Q3 2014
TRGPTarga Resources Corp.	$2.59M	2.37%	0.00%	+1.0%	Q1 2013
ENBEnbridge Inc	$840K	0.77%	0.00%	-92.0%	Q4 2012
PBAPembina Pipeline Corp	$792K	0.72%	0.00%	-91.1%	Q4 2012
TRPTC Energy Corp	$740K	0.68%	Not reported	-91.4%	Q3 2020
LNGCheniere Energy, Inc.	$709K	0.65%	0.00%	Not reported	Q4 2022
AMAntero Midstream Corp	$386K	0.35%	0.00%	Not reported	Q4 2016
CQPCheniere Energy Partners, L.P.	$376K	0.34%	0.00%	Not reported	Q4 2022
Q4 2025Reported Feb 4, 202625 positions
MPLXMPLX LP	$17.3M	9.99%	0.03%	-9.1%	Q4 2012
EPDEnterprise Products Partners L.P.	$15.9M	9.20%	0.02%	-9.6%	Q4 2012
WMBWilliams Companies, Inc.	$15M	8.69%	0.02%	-9.5%	Q3 2013
ETEnergy Transfer LP	$13.2M	7.65%	0.02%	-9.3%	Q4 2012
ENBEnbridge Inc	$12.4M	7.18%	0.01%	Not reported	Q4 2012
OKEOneok Inc	$10.4M	6.01%	0.02%	-9.2%	Q3 2013
TRPTC Energy Corp	$10.1M	5.85%	Not reported	Not reported	Q3 2020
PBAPembina Pipeline Corp	$10.1M	5.83%	0.03%	Not reported	Q4 2012
CPCanadian Pacific Kansas City Ltd	$9.02M	5.22%	0.01%	Not reported	Q4 2012
CNQCANADIAN NATURAL RESOURCES Ltd	$9M	5.20%	0.01%	Not reported	Q3 2014
WESWestern Midstream Partners, LP	$8.15M	4.71%	0.05%	-9.7%	Q4 2012
SUSuncor Energy Inc	$8.04M	4.65%	0.01%	Not reported	Q4 2012
CNICanadian National Railway Co	$7.25M	4.19%	0.01%	Not reported	Q4 2012
FTSFortis Inc.	$6.14M	3.55%	0.02%	Not reported	Q4 2016
EMAEmera Inc	$4.5M	2.60%	0.02%	Not reported	Q2 2025
PAGPPlains GP Holdings LP	$3.51M	2.03%	0.09%	-7.7%	Q4 2013
HESMHess Midstream LP	$3.24M	1.87%	0.07%	-8.8%	Q4 2018
KMIKinder Morgan, Inc.	$2.44M	1.41%	0.00%	-6.7%	Q3 2014
TACTransalta Corp	$2.12M	1.22%	0.04%	Not reported	Q4 2023
TRGPTarga Resources Corp.	$1.89M	1.09%	0.00%	Not reported	Q1 2013
SOBOSouth Bow Corp	$1.73M	1.00%	0.02%	Not reported	Q4 2024
LNGCheniere Energy, Inc.	$485K	0.28%	0.00%	Not reported	Q4 2022
CVECenovus Energy Inc.	$348K	0.20%	0.00%	Not reported	Q4 2012
CQPCheniere Energy Partners, L.P.	$311K	0.18%	0.00%	Not reported	Q4 2022
AMAntero Midstream Corp	$301K	0.17%	0.00%	Not reported	Q4 2016
Q3 2025Reported Nov 12, 202525 positions
MPLXMPLX LP	$17.8M	9.74%	0.03%	Not reported	Q4 2012
WMBWilliams Companies, Inc.	$17.5M	9.58%	0.02%	Not reported	Q3 2013
EPDEnterprise Products Partners L.P.	$17.2M	9.41%	0.03%	Not reported	Q4 2012
ETEnergy Transfer LP	$15.2M	8.31%	0.03%	Not reported	Q4 2012
ENBEnbridge Inc	$13.3M	7.26%	0.01%	Not reported	Q4 2012
OKEOneok Inc	$11.4M	6.23%	0.02%	-0.6%	Q3 2013
PBAPembina Pipeline Corp	$10.8M	5.94%	0.03%	Not reported	Q4 2012
TRPTC Energy Corp	$10.1M	5.55%	Not reported	+1.5%	Q3 2020
CPCanadian Pacific Kansas City Ltd	$9.26M	5.07%	0.01%	Not reported	Q4 2012
WESWestern Midstream Partners, LP	$8.98M	4.92%	0.06%	Not reported	Q4 2012
CNQCANADIAN NATURAL RESOURCES Ltd	$8.62M	4.72%	0.01%	Not reported	Q3 2014
SUSuncor Energy Inc	$7.69M	4.21%	0.01%	Not reported	Q4 2012
CNICanadian National Railway Co	$7.01M	3.84%	0.01%	Not reported	Q4 2012
FTSFortis Inc.	$6.07M	3.32%	0.02%	Not reported	Q4 2016
EMAEmera Inc	$4.44M	2.43%	0.02%	Not reported	Q2 2025
PAGPPlains GP Holdings LP	$3.62M	1.98%	0.10%	Not reported	Q4 2013
HESMHess Midstream LP	$3.56M	1.95%	0.08%	Not reported	Q4 2018
KMIKinder Morgan, Inc.	$2.69M	1.47%	0.00%	Not reported	Q3 2014
TACTransalta Corp	$2.32M	1.27%	0.04%	+43.5%	Q4 2023
SOBOSouth Bow Corp	$1.81M	0.99%	0.02%	Not reported	Q4 2024
TRGPTarga Resources Corp.	$1.72M	0.94%	0.00%	Not reported	Q1 2013
LNGCheniere Energy, Inc.	$587K	0.32%	0.00%	Not reported	Q4 2022
CVECenovus Energy Inc.	$354K	0.19%	0.00%	Not reported	Q4 2012
AMAntero Midstream Corp	$329K	0.18%	0.00%	Not reported	Q4 2016
CQPCheniere Energy Partners, L.P.	$313K	0.17%	0.00%	Not reported	Q4 2022

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