---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-25-037058"
form_type: "8-K"
ticker: "OXY"
cik: "0000797468"
company_name: "OCCIDENTAL PETROLEUM CORP /DE/"
filed_at: "2025-10-02T23:59:59+00:00"
generated_at: "2026-05-17T05:00:29.097284+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Berkshire Hathaway to acquire Occidental's OxyChem for $9.7B cash

## Summary
- Berkshire Hathaway to acquire OxyChem from Occidental for $9.7B in all-cash transaction.
- Occidental plans to use $6.5B of proceeds to reduce debt, targeting principal debt below $15B.
- Transaction expected to close in Q4 2025, subject to regulatory approvals.
- Occidental subsidiary retains OxyChem's legacy environmental liabilities.
- OxyChem manufactures commodity chemicals for water treatment, pharma, healthcare.

## SEC filing metadata
- accession: 0001140361-25-037058
- form_type: 8-K
- ticker: OXY
- cik: 0000797468
- company_name: OCCIDENTAL PETROLEUM CORP /DE/
- filed_at: 2025-10-02T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/797468/000114036125037058/0001140361-25-037058-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/797468/000114036125037058/ef20056509_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-25-037058
- JSON: https://secwatch.observer/filing/0001140361-25-037058.json
- Plain text: https://secwatch.observer/filing/0001140361-25-037058.txt

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