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DIAMOND SHAMROCK INC
DIAMOND SHAMROCK INC is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000810316, and its reported industry is...
Overview
DIAMOND SHAMROCK INC is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000810316, and its reported industry is Petroleum Refining. The retained history contains 12 filings, including 10-Q filed on 1996-11-14. 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.
Company overview
- Legal name
- DIAMOND SHAMROCK INC
- Classification
- Company
- Industry (SIC)
- 2911 — Petroleum Refining
- Headquarters
- San Antonio, TX, United States
- Incorporated in
- DE
- Fiscal year end
- December 31
- SEC CIK
- 0000810316
Recent SEC filings
| Form | Filed | Period | Filing |
|---|---|---|---|
| 10-Q | Form 10-Q | ||
| DEF 14A | DEF 14A | ||
| 8-K | Form 8-K | ||
| SC 13D | — | SCHEDULE 13D | |
| SC 13D | — | SC 13D | |
| 10-K/A | Form 10-K/A | ||
| 8-K | Form 8-K | ||
| 10-Q | Form 10-Q | ||
| SC 13G | — | AMENDMENT - DIAMOND SHAMROCK INC | |
| 8-K | Form 8-K | ||
| 10-Q | Form 10-Q | ||
| 10-K | Form 10-K |
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