Basic Stats
Portfolio Value $ 179,537,386
Current Positions 25
Latest Holdings, Performance, AUM (from 13F, 13D)

Heronetta Management, L.P. has disclosed 25 total holdings in their latest SEC filings. Most recent portfolio value is calculated to be $ 179,537,386 USD. Actual Assets Under Management (AUM) is this value plus cash (which is not disclosed). Heronetta Management, L.P.’s top holdings are MPLX LP - Limited Partnership (US:MPLX) , The Williams Companies, Inc. (US:WMB) , Enterprise Products Partners L.P. - Limited Partnership (US:EPD) , Energy Transfer LP - Limited Partnership (US:ET) , and ONEOK, Inc. (US:OKE) . Heronetta Management, L.P.’s new positions include Emera Incorporated (US:EMRAF) , .

Heronetta Management, L.P. - Portfolio Value
Top Increases This Quarter

We use the change in the portfolio allocation because this is the most meaningful metric. Changes can be due to trades or changes in share prices.

Security Shares
(MM)
Value
(MM$)
Portfolio % ΔPortfolio %
0.07 4.15 2.3105 2.3105
0.28 17.35 9.6654 0.6449
0.09 9.66 5.3808 0.4535
0.14 8.79 4.8941 0.2851
0.05 7.58 4.2202 0.1345
0.09 1.25 0.6955 0.1305
0.10 2.80 1.5577 0.0750
0.00 0.61 0.3387 0.0589
0.09 5.59 3.1145 0.0345
0.02 0.32 0.1785 0.0122
Top Decreases This Quarter

We use the change in the portfolio allocation because this is the most meaningful metric. Changes can be due to trades or changes in share prices.

Security Shares
(MM)
Value
(MM$)
Portfolio % ΔPortfolio %
0.16 12.80 7.1293 -1.3708
0.55 17.03 9.4867 -0.7582
0.20 9.87 5.4959 -0.5518
0.13 6.73 3.7504 -0.2681
0.19 11.68 6.5053 -0.2081
0.36 18.34 10.2156 -0.1960
0.10 3.96 2.2083 -0.1705
0.23 8.85 4.9273 -0.1700
0.20 3.86 2.1485 -0.1435
0.01 1.78 0.9931 -0.1287
13F and Fund Filings

This form was filed on 2025-08-06 for the reporting period 2025-06-30. Click the link icon to see the full transaction history.

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2022-07-28: Important Note - We have changed the treatment of the Δ Portfolio % column in this table. Previously, we were reporting it as the percent change in the portfolio allocation. We are now reporting it as the raw change in the portfolio allocation (still reported as a percent). In formula terms, we were previously reporting it as 100 * (current allocation - prior allocation ) / prior allocation. We are now reporting it as (current allocation - prior allocation).
Security Type Avg Share Price Shares
(MM)
ΔShares
(%)
ΔShares
(%)
Value
($MM)
Portfolio
(%)
ΔPortfolio
(%)
MPLX / MPLX LP - Limited Partnership 0.36 0.00 18.34 -3.76 10.2156 -0.1960
WMB / The Williams Companies, Inc. 0.28 0.00 17.35 5.10 9.6654 0.6449
EPD / Enterprise Products Partners L.P. - Limited Partnership 0.55 0.00 17.03 -9.17 9.4867 -0.7582
ET / Energy Transfer LP - Limited Partnership 0.88 0.00 16.03 -2.48 8.9283 -0.0518
OKE / ONEOK, Inc. 0.16 0.00 12.80 -17.73 7.1293 -1.3708
EBGEF / Enbridge Inc. - Preferred Stock 0.19 -2.08 11.68 -4.95 6.5053 -0.2081
PBA / Pembina Pipeline Corporation 0.20 0.00 9.87 -10.86 5.4959 -0.5518
CP / Canadian Pacific Kansas City Limited 0.09 0.00 9.66 7.12 5.3808 0.4535
WES / Western Midstream Partners, LP - Limited Partnership 0.23 0.36 8.85 -5.18 4.9273 -0.1700
TRP / TC Energy Corporation 0.14 6.14 8.79 4.16 4.8941 0.2851
CNQ / Canadian Natural Resources Limited 0.19 0.00 8.29 -3.34 4.6152 -0.0684
CNI / Canadian National Railway Company 0.05 0.00 7.58 1.31 4.2202 0.1345
SU / Suncor Energy Inc. 0.13 0.00 6.73 -8.46 3.7504 -0.2681
FTS / Fortis Inc. 0.09 0.00 5.59 -0.82 3.1145 0.0345
EMRAF / Emera Incorporated 0.07 4.15 2.3105 2.3105
HESM / Hess Midstream LP 0.10 0.00 3.96 -8.94 2.2083 -0.1705
PAGP / Plains GP Holdings, L.P. - Limited Partnership 0.20 1.08 3.86 -8.04 2.1485 -0.1435
KMI / Kinder Morgan, Inc. 0.10 0.00 2.80 3.06 1.5577 0.0750
TRGP / Targa Resources Corp. 0.01 0.00 1.78 -13.20 0.9931 -0.1287
SOBO / South Bow Corporation 0.05 0.00 1.62 -3.68 0.9040 -0.0164
TAC / TransAlta Corporation 0.09 10.39 1.25 20.70 0.6955 0.1305
LNG / Cheniere Energy, Inc. 0.00 12.83 0.61 18.75 0.3387 0.0589
CQP / Cheniere Energy Partners, L.P. - Limited Partnership 0.01 0.00 0.33 -15.14 0.1814 -0.0282
AM / Antero Midstream Corporation 0.02 0.00 0.32 5.26 0.1785 0.0122
CVE / Cenovus Energy Inc. 0.01 0.00 0.28 -7.67 0.1548 -0.0091