---
schema_version: "secwatch.filing_event.v1"
accession: "0000797468-23-000078"
form_type: "8-K"
ticker: "OXY"
cik: "0000797468"
company_name: "OCCIDENTAL PETROLEUM CORP /DE/"
filed_at: "2023-08-09T23:59:59+00:00"
generated_at: "2026-06-11T23:50:52.950539+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Occidental appoints Sunil Mathew as CFO; Robert Peterson moves to lead OxyChem and DAC

## Summary
- Robert Peterson appointed EVP Essential Chemistry of OxyChem; oversight of Stratos DAC facility, effective Aug 9, 2023.
- Sunil Mathew named SVP and CFO, replacing Peterson; base salary set at $700,000/year.
- Mathew previously VP Strategic Planning; led ~$10B divestiture program after Anadarko acquisition.
- Peterson remains SVP of Occidental; has engineering and financial background.

## SEC filing metadata
- accession: 0000797468-23-000078
- form_type: 8-K
- ticker: OXY
- cik: 0000797468
- company_name: OCCIDENTAL PETROLEUM CORP /DE/
- filed_at: 2023-08-09T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/797468/000079746823000078/0000797468-23-000078-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/797468/000079746823000078/oxy-20230809.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000797468-23-000078
- JSON: https://secwatch.observer/filing/0000797468-23-000078.json
- Plain text: https://secwatch.observer/filing/0000797468-23-000078.txt

## Key facts
- Executive change
  Sunil Mathew was appointed as Senior Vice President and Chief Financial Officer at OCCIDENTAL PETROLEUM CORP /DE/.
  - Action: appointed
  - Role: Senior Vice President and Chief Financial Officer
  source text: Sunil Mathew, 53, was appointed Senior Vice President and Chief Financial Officer of the Company effective as of August 9, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/797468/000079746823000078/0000797468-23-000078-index.htm
- Executive change
  Robert Peterson was appointed as Executive Vice President, Essential Chemistry at OCCIDENTAL PETROLEUM CORP /DE/.
  - Action: appointed
  - Role: Executive Vice President, Essential Chemistry
  source text: On August 9, 2023, Robert Peterson, 52, was appointed Executive Vice President, Essential Chemistry, of Occidental Chemical Corporation (“OxyChem”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/797468/000079746823000078/0000797468-23-000078-index.htm

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