When did OXY join the S&P 500?

Occidental Petroleum joined the S&P 500 index on 1957-03-04.

What sector is OXY in?

OXY is in the Energy sector, Oil & Gas Exploration & Production industry.

OXY — Occidental Petroleum

Name: OXY Institutional Holdings (13F) — 2026Q1
Creator: SEC EDGAR
License: https://www.sec.gov/data

Oil & Gas Exploration & Production · Energy

Occidental Petroleum Corporation engages in the exploration and production of oil and gas. It operates through the following segments: Oil and Gas, Chemical, Midstream and Marketing. The Oil and Gas segment explores for, develops, and produces oil, condensate, LNG and natural gas. The Chemical segment manufactures and markets basic chemicals and vinyls. The Midstream and Marketing segment procures, markets, gathers, processes, transports and stores oil, condensate, natural gas liquids, natural gas, carbon dioxide and electricity.

Key Facts

Status	Active
Sector	Energy
Industry	Oil & Gas Exploration & Production
Joined	1957-03-04
Tenure	69 yrs

S&P 500 Timeline

1957-03-04Joined S&P 500

Industry Peers

APA COP DVN EOG EQT EXE FANG TPL

Sector Peers

APA BKR COP CVX DVN EOG EQT EXE FANG HAL

Institutional Holdings (13F)

1 institutions hold OXY, totaling 618K shares ($632483) · As of 2026Q1

Rank	Institution	Shares	Value
1	Pacer Advisors, Inc.	618K	$632483

View all holders →

Data source: Wikipedia · CC BY-SA 4.0 · SEC EDGAR 13F · Updated 2026-07-10