Two prominent Texans have increased their rankings in this year's Forbes annual Billionaires list. Michael Dell and Dallas Cowboys owner, Jerry Jones, are the two highest-ranking Texans on the 2021 list. Dell, the CEO of Round Rock-based Dell Technologies, has an estimated net worth of $45.1 billion. He's 30th on the 2021 list, increasing his ranking three spots from last year. Jones, the billionaire owner of the Dallas Cowboys and the second richest owner in the NFL, is ranked 264th, with an estimated net worth of $8.9 billion. Over the past five Forbes rankings, Jones' wealth has increased from $5.2 billion in 2017, to $5.6 billion in 2018, to $6.8 billion in 2019, $8 billion in 2020 and the current $8.9 billion in 2021.