13F

Investor

Heronetta Management, L.P.

CIK 0001588225 · filed 2026-05-01 · SEC filing

13F book

$109.6M

Positions

16

0 new · 9 sold

Largest name

17.1%

Enterprise Prods Partners L

Est. mark

$14.7M

Price effect on 16 names still held. Flow −$78.1M.
NameTickerSharesValueWeightEst. markChange
Enterprise Prods Partners L495K$18.7M17.1%$2.86MCut$2.82M
Mplx Lp324K$18.5M16.9%$1.2MAdded$1.22M
Williams Cos Inc251.4K$18.3M16.7%$3.17MAdded$3.26M
Energy Transfer L P799.2K$15.4M14.1%$2.25MCut$2.2M
Oneok Inc /New/OKE140.8K$12.7M11.6%$2.38MCut$2.33M
Western Midstream Partners L206.4K$8.5M7.8%$344.6KHeld
Plains Gp Hldgs L P181K$4.4M4.0%$930.5KCut$886.4K
Hess Midstream LpHESM92.5K$3.6M3.3%$404.2KCut$355.9K
Kinder Morgan Inc Del88.7K$2.97M2.7%$535.9KHeld
Targa Res Corp10.3K$2.59M2.4%$678.3KAdded$703.4K
Enbridge Inc15.5K$839.5K0.8%−$156.7KCut−$11.6M
Pembina Pipeline Corp17.7K$792.2K0.7%−$110.7KCut−$9.29M
Tc Energy Corp11.8K$739.7K0.7%−$131.5KCut−$9.38M
Cheniere Energy, Inc.LNG2.5K$708.5K0.6%$223.2KHeld
Antero Midstream CorpAM16.9K$385.5K0.4%$84.7KHeld
Cheniere Energy Partners LpCQP5.81K$375.5K0.3%$64.8KHeld

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.