Shares rose 2.18% to $20.19 on Thursday, their third straight gain, as the Nasdaq climbed 0.89% and the Dow added 1.62%.
The move topped Energy Transfer's previous 52-week peak of $19.86 set on 30 March, while trading volume jumped to 30.7 million shares from a 50-day average of 15.6 million.
Among peers, Enterprise Products Partners gained 1.20% to $38.70 and Williams rose 4.08% to $76.31, showing mixed relative performance despite the broad market rally.
Energy Transfer's stock is soaring, but with a 110% dividend payout, is a crash for investors inevitable?
As data centers trigger an energy crunch, can Energy Transfer build its new gas pipelines fast enough to cash in?