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ONEOK ANNOUNCES HIGHER FIRST QUARTER 2021 EARNINGS ; INCREASES 2021 FINANCIAL GUIDANCE April 27 , 2021 TULSA , Okla . , April 27 , 2021 / PRNewswire / -- ONEOK , Inc. ( NYSE : OKE ) today announced higher first quarter 2021 results and increased 2021 financial guidance . Higher First Quarter 2021 Results , Compared With First Quarter 2020 : Net income of $ 386.2 million , resulting in 86 cents per diluted share . 24 % increase in adjusted EBITDA to $ 866.4 million . 20 % increase in Rocky Mountain region NGL raw feed throughput volumes . 5 % increase in Rocky Mountain region natural gas volumes processed . $ 1.04 per MMBtu average fee rate in the natural gas gathering and processing segment . Increased 2021 Guidance :