# PENNZENERGY CO

PENNZENERGY CO is a company headquartered in Houston, TX, United States.

## Company overview

- **Legal name:** PENNZENERGY CO
- **Former names in filing history:** PENNZOIL CO /DE/ (1994-01-21 to 1998-04-20)
- **Classification:** Company
- **Industry (SIC):** 2911 — Petroleum Refining
- **Headquarters:** Houston, TX, United States
- **Incorporated in:** DE
- **Fiscal year end:** December 31
- **SEC CIK:** 0000077320

## About

PENNZENERGY CO is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000077320, and its reported industry is Petroleum Refining. The retained history contains 12 filings, including 8-K filed on 1999-08-17. 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 1999-08-17 — period 1999-08-13 — FORM 8-K
- Form 10-Q — filed 1999-08-12 — period 1999-06-30 — 1999 SECOND QUARTER 10-Q
- Form SC 13D — filed 1999-06-14 — SCHEDULE 13D
- Form SC 13D — filed 1999-06-14 — SCHEDULE 13D
- Form 10-Q — filed 1999-05-14 — period 1999-03-31 — 1999 FIRST QUARTER 10-Q
- Form SC 13D — filed 1999-04-09 — INITIAL SCHEDULE 13D
- Form DEF 14A — filed 1999-03-25 — period 1999-05-06 — DEF 14APROXY STATEMENT
- Form SC 13G — filed 1999-02-22
- Form 8-K — filed 1998-12-30 — period 1998-12-30 — PENNZENERGY COMPANY - DATED 12/30/98
- Form 8-K — filed 1998-11-12 — period 1998-11-12 — PENNZOIL COMPANY, DATED 11/12/98
- Form 10-Q — filed 1998-11-12 — period 1998-09-30 — 1998 THIRD QUARTER 10-Q
- Form 10-Q — filed 1998-08-14 — period 1998-06-30 — PENNZOIL COMPANY - DATED 6/30/98

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Updated: 2026-10-23T22:26:34Z

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