Occidental inks deal to divest petrochemicals business

The sale allows Occidental to focus on upstream oil and gas operations while using the proceeds to reduce debt by $6.5 billion. Berkshire Hathaway plans to operate OxyChem as a standalone entity.
Oct. 2, 2025
2 min read

Key Highlights

  • Occidental Petroleum is selling OxyChem to Berkshire Hathaway for $9.7 billion in cash.
  • The deal includes assets like ethylene production, vinyl chloride, and related chemical manufacturing infrastructure.
  • Oxy plans to use $6.5 billion of the proceeds to reduce its debt below $15 billion.
  • Berkshire Hathaway will operate OxyChem as a standalone subsidiary under its existing leadership.

Occidental Petroleum Corp. (Oxy) has entered a definitive agreement to sell wholly owned chemical subsidiary Occidental Chemical Corp. (OxyChem) to Berkshire Hathaway Inc. for $9.7 billion in cash, the companies announced Oct. 2.

Under the transaction terms, Berkshire Hathaway will acquire 100% of OxyChem's operating assets and workforce, including its 50% interest in Ingleside Ethylene LLC, a 50-50 joint venture with Orbia Advance Corp. SAB (formerly Mexichem SAB de CV, or Mexichem) that since 2017 has operated an ethane-based cracker equipped to produce 1.2-billion-lb/year of ethylene in Ingleside, Tex., as well as a related pipeline and storage complex in Markham, Tex.

In addition to Ingleside, Berkshire Hathaway’s acquisition will include the remainder of OxyChem’s chemical manufacturing business that produces vinyl chloride monomer, chlorine, caustic soda, vinyls used in water treatment, as well as pharmaceuticals and building materials.

As part of the agreement, Oxy will retain responsibility for legacy environmental liabilities of the OxyChem business through a separate subsidiary, which will continue to be managed by Glenn Springs Holdings Inc.

 

This transaction strengthens our financial position and catalyzes a significant resource opportunity we’ve been building in our oil and gas business for the last decade.

- Vicki Hollub, Oxy president and CEO

 

Subject to regulatory approvals and customary closing conditions, the transaction is scheduled to close in fourth-quarter 2025. 

The divestment marks a strategic pivot by Oxy to consolidate its focus on upstream oil and gas operations while accelerating debt-reduction goals.

Occidental debt reduction

Oxy said it plans to allocate $6.5 billion of the proceeds to reduce debt, supporting its goal of lowering total principal debt below $15 billion following the the December 2023 acquisition of CrownRock LP while also allowing for reallocation of capital to high-return oil and gas projects. 

Following completion of the deal, Berkshire Hathaway—already a major equity investor in Oxy with more than 25% ownership as of 2025—aims to operate OxyChem as a standalone subsidiary under its existing leadership.

About the Author

Robert Brelsford

Downstream Editor

Robert Brelsford joined Oil & Gas Journal in October 2013 as downstream technology editor after 8 years as a crude oil price and news reporter on spot crude transactions at the US Gulf Coast, West Coast, Canadian, and Latin American markets. He holds a BA (2000) in English from Rice University and an MS (2003) in education and social policy from Northwestern University.

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