# PRIMA ENERGY CORP

PRIMA ENERGY CORP is a company headquartered in Denver, CO, United States.

## Company overview

- **Legal name:** PRIMA ENERGY CORP
- **Classification:** Company
- **Industry (SIC):** 1311 — Crude Petroleum & Natural Gas
- **Headquarters:** Denver, CO, United States
- **Incorporated in:** DE
- **Fiscal year end:** December 31
- **SEC CIK:** 0000318107

## About

PRIMA ENERGY CORP is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000318107, and its reported industry is Crude Petroleum & Natural Gas. The retained history contains 12 filings, including SC 13G filed on 2005-02-15. 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 SC 13G — filed 2005-02-15 — PENG SC13G
- Form 8-K — filed 2004-07-29 — period 2004-07-23 — 8-K
- Form 8-K — filed 2004-07-06 — period 2004-06-24 — FORM 8-K
- Form SC 13D — filed 2004-06-18 — SC 13D
- Form 8-K — filed 2004-06-11 — period 2004-06-09 — FORM 8-K
- Form 10-Q — filed 2004-05-10 — period 2004-03-31 — FORM 10-Q
- Form 8-K — filed 2004-05-07 — period 2004-05-06 — CURRENT REPORT
- Form DEF 14A — filed 2004-04-16 — period 2004-05-20 — 2004 PROXY MATERIALS
- Form 10-K — filed 2004-03-15 — period 2003-12-31 — FORM 10-K
- Form 8-K — filed 2004-03-11 — period 2004-03-10 — FORM 8-K
- Form 8-K — filed 2004-03-08 — period 2004-03-08 — FORM 8-K
- Form SC 13G — filed 2004-02-17 — PRIMA ENERGY SCHEDULE 13G

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Updated: 2026-10-23T22:09:23Z

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