Tim Dove and Shari Redstone built their best-known careers in different businesses. Timothy L. Dove was president and chief executive of Pioneer Natural Resources, an oil and gas producer. Redstone chaired Paramount Global and led National Amusements, the company through which her family exercised control over the media group.
The two have no established professional partnership in the public records examined for this article. Their careers offer a contrast in corporate transitions: Dove left Pioneer in 2019, years before its acquisition by ExxonMobil, while Redstone’s departure from Paramount’s leadership accompanied its 2025 ownership change.
Tim Dove’s Pioneer career ended before the ExxonMobil deal
Pioneer’s 2017 annual report identifies Timothy L. Dove as its president and CEO from January 1, 2017. His earlier assignments included chief financial officer and president and chief operating officer. He had joined predecessor company Parker & Parsley in 1994.
Dove reached the top job after a long internal career that crossed finance and operations.
The end of his tenure is equally specific. In a filing covering February 21, 2019, Pioneer reported that Dove had retired as president, CEO and a director. Scott D. Sheffield returned as president and CEO.
ExxonMobil completed its acquisition of Pioneer on May 3, 2024. More than five years separated Dove’s retirement and the transaction’s completion.
Shari Redstone’s Paramount roles had a different ending
Redstone’s position combined a media-company board role with leadership of its controlling shareholder. Paramount’s July 2024 transaction announcement identified her as Paramount Global’s chair and as chair, president and CEO of National Amusements.
The proposed transaction included the Skydance investor group’s acquisition of National Amusements as well as the combination of Skydance and Paramount. That structure makes the shareholder-control element central to understanding her place in the story.
An agreement, however, is not a completed acquisition. The Paramount-Skydance transaction closed on August 7, 2025. Paramount’s closing filing records the previous Paramount board’s resignations at the pre-closing merger stage on August 6.
Those dates explain why descriptions of Redstone as Paramount’s current chair are outdated. Her historical importance to the company remains, but the title belongs to a particular period.
Her later work includes Sipur
Leaving Paramount did not end Redstone’s involvement in entertainment. TheWrap reported her appointment as Sipur’s board chair on September 16, 2025. The studio’s current leadership page lists her as chairwoman and describes her as Paramount Global’s former chair.
Frequently Asked Questions
Which Tim Dove does this article mean?
Timothy L. Dove, the former Pioneer Natural Resources president and CEO. The company’s filings identify him by that full name.
Did Dove leave Pioneer when ExxonMobil bought it?
No. Dove retired in February 2019. ExxonMobil completed its acquisition in May 2024.
Is Shari Redstone still Paramount’s chair?
No. Her Paramount board role ended during the 2025 transaction. Sipur now identifies her as its chairwoman.
Final Thoughts
Dove’s Pioneer tenure ended with an executive succession; Redstone’s Paramount tenure ended during a change of ownership. Her subsequent Sipur appointment adds another chapter to the media side of the comparison, while Dove’s documented place in the story remains his years running Pioneer.
Image credits. Photos: Pioneer Natural Resources; photographer unlisted; CPJ Photos (CC BY 2.0). Cropped and paired; separate photographs. Photo: Coolcaesar (CC BY-SA 4.0). Resized. Photographic adaptations shared under the linked source licence(s); site logos are separate.
