---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-25-037234"
form_type: "8-K"
ticker: "OXY"
cik: "0000797468"
company_name: "OCCIDENTAL PETROLEUM CORP /DE/"
filed_at: "2025-10-03T23:59:59+00:00"
generated_at: "2026-05-17T04:52:30.943779+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Occidental sells OxyChem to Berkshire Hathaway for $9.7B all-cash

## Summary
- Deal value $9.7B, subject to customary adjustments for cash, debt, and working capital.
- Closing expected by March 30, 2026, with 90-day extension for regulatory approvals.
- OxyChem is Occidental's commodity chemicals business; ERH retains legacy environmental liabilities.
- Occidental will guarantee indemnification obligations of its selling subsidiaries.
- Transaction requires HSR clearance and other regulatory consents.

## SEC filing metadata
- accession: 0001140361-25-037234
- form_type: 8-K
- ticker: OXY
- cik: 0000797468
- company_name: OCCIDENTAL PETROLEUM CORP /DE/
- filed_at: 2025-10-03T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/797468/000114036125037234/0001140361-25-037234-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/797468/000114036125037234/ef20056633_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-25-037234
- JSON: https://secwatch.observer/filing/0001140361-25-037234.json
- Plain text: https://secwatch.observer/filing/0001140361-25-037234.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.