# SOUTHERN UNION CO — DEF 14A

SOUTHERN UNION CO of DALLAS, TX filed a DEF 14A with the SEC on 1999-09-17. Industry: Natural Gas Transmission.

## Filing

- Filed: 1999-09-17
- Form: DEF 14A
- Accession: 0000950130-99-005323
- Registrant: SOUTHERN UNION CO
- CIK: 0000203248
- Industry (SIC): Natural Gas Transmission (4922)
- State of incorporation: DE
- Location: DALLAS, TX

## Filing timeline for this registrant (46)

_Showing 12 of 46 filings._

| Filed | Form |
| --- | --- |
| [2012-03-20](https://search.stillhousedata.com/proxy/0000203248-12-000025) | 425 |
| [2012-03-12](https://search.stillhousedata.com/proxy/0000203248-12-000021) | 425 |
| [2012-03-01](https://search.stillhousedata.com/proxy/0000203248-12-000017) | 425 |
| [2012-02-17](https://search.stillhousedata.com/proxy/0000203248-12-000004) | 425 |
| [2011-12-12](https://search.stillhousedata.com/proxy/0000203248-11-000132) | 425 |
| [2011-12-01](https://search.stillhousedata.com/proxy/0000203248-11-000123) | 425 |
| [2011-11-21](https://search.stillhousedata.com/proxy/0000203248-11-000120) | 425 |
| [2011-11-21](https://search.stillhousedata.com/proxy/0000203248-11-000119) | 425 |
| [2011-11-16](https://search.stillhousedata.com/proxy/0000203248-11-000116) | 425 |
| [2011-10-27](https://search.stillhousedata.com/proxy/0001193125-11-284408) | DEFM14A |
| [2011-09-15](https://search.stillhousedata.com/proxy/0000203248-11-000105) | 425 |
| [2011-09-07](https://search.stillhousedata.com/proxy/0000203248-11-000093) | 425 |

## More

- [CIK 203248 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=203248&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0000950130-99-005323.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.
