ONEOK (OKE) reported Q1 earnings late Tuesday of $1.04 per diluted share, down from $1.09 a year earlier.
Analysts surveyed by FactSet expected $1.24.
Revenue in the three months ended March 31 rose to $8.04 billion from $4.78 billion a year earlier.
Four analysts polled by FactSet expect $6.57 billion.
The company said it affirmed full-year 2025 financial guidance.
Shares of the company were down 1.6% in recent after-hours activity.