# UNOCAL CORP

UNOCAL CORP is a company headquartered in El Segundo, CA, United States.

## Company overview

- **Legal name:** UNOCAL CORP
- **Former names in filing history:** UNOCAL CORP/DE (1994-02-11 to 1994-02-14)
- **Classification:** Company
- **Industry (SIC):** 1311 — Crude Petroleum & Natural Gas
- **Headquarters:** El Segundo, CA, United States
- **Incorporated in:** DE
- **Fiscal year end:** September 1
- **SEC CIK:** 0000716039

## About

UNOCAL CORP is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000716039, and its reported industry is Crude Petroleum & Natural Gas. The retained history contains 12 filings, including 8-K filed on 2005-10-03. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form 8-K — filed 2005-10-03 — period 2005-09-27 — FORM 8-K
- Form 8-K — filed 2005-09-16 — period 2005-08-26 — FORM 8-K
- Form 8-K — filed 2005-08-10 — period 2005-08-10 — FORM 8-K
- Form 10-Q — filed 2005-08-04 — period 2005-06-30 — 2ND QUARTER 10-Q
- Form 8-K — filed 2005-08-01 — period 2005-08-01
- Form 8-K — filed 2005-07-29 — period 2005-07-29 — FORM 8-K
- Form 8-K — filed 2005-07-29 — period 2005-07-29 — 2 Q05 EARNINGS RELEASE
- Form 8-K — filed 2005-07-22 — period 2005-07-19
- Form 8-K — filed 2005-07-20 — period 2005-07-19
- Form 8-K — filed 2005-07-15 — period 2005-07-14 — 2005 DCP & AMENDMENTS
- Form 8-K — filed 2005-07-13 — period 2005-07-08 — CANADA SALE AGREEMENT
- Form 8-K — filed 2005-07-06 — period 2005-07-05 — 8-K, FILED JULY 6, 2005

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Updated: 2026-10-23T22:31:33Z

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