I need to read through this 10-Q filing for HF Sinclair Corporation and produce the article. The filing covers the quarterly period ended September 30, 2026. Let me extract the key substantive disclosures. The filing text provided is largely the cover page, table of contents, and forward-looking statements boilerplate. The substantive financial content (financial statements, MD&A, segment information) is referenced in the table of contents but the actual content was cut off. I need to work with what's available. Let me check: the filing does contain substantive disclosures beyond boilerplate - the cover page confirms 171,371,164 shares outstanding as of October 22, 2026, the company's identity, exchange listing (NYSE:DINO), filing period (Q3 2026 ended September 30, 2026), and various structural disclosures. The table of contents references Note 2 about "Lubricants & Specialties Planned Separation and Mississauga Asset Retirement" which is a notable disclosure. However, the actual note content wasn't included. Given the limited substantive content available, I'll work only with what's confirmed in the filing text.

HF Sinclair Corporation filed its quarterly report on Form 10-Q with the U.S. Securities and Exchange Commission on October 28, 2026, covering the fiscal quarter ended September 30, 2026.

Key Highlights

  • Shares outstanding: 171,371,164 shares of common stock, par value $0.01 per share, were outstanding as of October 22, 2026, according to the filing.
  • Exchange listing: The company's common stock trades on the New York Stock Exchange under the symbol DINO, as stated on the cover page.
  • Large accelerated filer: The registrant indicated it is classified as a large accelerated filer, as defined under Rule 12b-2 of the Exchange Act.
  • Planned separation disclosed: The filing's table of contents references a note on "Lubricants and Specialties Planned Separation and Mississauga Asset Retirement," indicating the company has disclosed activity related to a planned business separation within this quarter's notes.
  • Cushing Connect Joint Venture: A dedicated note on the Cushing Connect Joint Venture is included among the notes to the consolidated financial statements for the period.
  • Shell company status: The registrant confirmed it is not a shell company, as checked on the cover page.

HF Sinclair's September 2026 Quarterly Disclosure: Coverage and Structure

HF Sinclair Corporation (NYSE:DINO), a Delaware-incorporated company headquartered at 2323 Victory Avenue, Suite 1400, Dallas, Texas 75219, filed its Form 10-Q for the quarterly period ended September 30, 2026. The filing was submitted under Commission File Number 001-41325 and covers the company's consolidated financial results and disclosures for the third quarter of 2026.

According to the filing, 171,371,164 shares of common stock with a par value of $0.01 per share were outstanding as of October 22, 2026. The company confirmed it had filed all reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months and had electronically submitted all required Interactive Data Files pursuant to Rule 405 of Regulation S-T.

The table of contents references a note specifically addressing a "Lubricants and Specialties Planned Separation and Mississauga Asset Retirement," as well as a note on the Cushing Connect Joint Venture, among 18 numbered notes to the consolidated financial statements. The filing also includes segment information, derivative instruments and hedging activities, commitments and contingencies, and a management's discussion and analysis section covering results of operations, liquidity and capital resources, and risk management. The filing notes that forward-looking statements contained within are based on "management's beliefs and assumptions using currently available information and expectations as of the date hereof" and "are not guarantees of future performance," subject to the company's cautionary language.

What Was Disclosed

HF Sinclair Corporation submitted its third-quarter 2026 Form 10-Q covering the period ended September 30, 2026. The filing confirms 171,371,164 shares outstanding as of October 22, 2026, and references notes on a planned Lubricants and Specialties separation and the Cushing Connect Joint Venture.