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HF Sinclair (NYSE: DINO), the new parent entity of HollyFrontier, has completed its acquisition of Sinclair Oil. As a subsidiary of HF Sinclair, we’re in the process of updating our website to reflect this change.

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All Corporate Refinery Dino Blog In The News Newsroom
Sinclair Wyoming Refining Company visiting Senate
Wyoming Senators Representatives

Monday, April 25, 2016

sinclair centennial logo
Sinclair Oil at 100: Expanding DINO’s Footprint Across The Nation

Friday, April 22, 2016

sinclair centennial logo
Sinclair Oil Corporation Celebrates 100 Years

Friday, April 22, 2016

sinclair casper reinery award nomination
Casper Area Chamber of Commerce Award Nominations

Monday, April 4, 2016

DINO topiary
Macy's Spring 2016 Flower Show

Friday, March 25, 2016

earl holding
A Remarkable Story of Success in Business and in Life

Friday, March 11, 2016

little america
10 Best Rest Stops in the U.S.

Thursday, February 25, 2016

Sinclair Refinery Goes 3D

Wednesday, February 24, 2016

Dino Macys balloon
Sinclair Oil Kicks Off Centennial Celebration with DINO’s Thanksgiving Day Flight

Friday, November 20, 2015

Parade Route Gives Viewers a Feel of Being There

Friday, November 20, 2015

Casper Housing Authority Father’s Day Event

Thursday, November 5, 2015

Junior Fire and Safety Day

Thursday, November 5, 2015

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