Brand
OxyChem
OxyChem is a chemicals business. The 2025 10-K says Berkshire acquired it from Occidental Petroleum on January 2, 2026, and that results would be consolidated beginning on that date.
Documented stakes
The 2025 Form 10-K, filed in 2026, states that on January 2, 2026 Berkshire acquired OxyChem from Occidental Petroleum. Exhibit 21 is dated December 31, 2025, so OxyChem is not on that subsidiary list.
As of Jan 2, 2026. Last checked Sep 22, 2026.
- Berkshire Hathaway Form 10-K for the year ended December 31, 2025 · U.S. Securities and Exchange Commission
- Berkshire Hathaway Exhibit 21, subsidiaries of the registrant · U.S. Securities and Exchange Commission