# MALLARD PIPELINE CO — Gas transmission and gathering annual report (1996)

**Citation:** PHMSA Annual Report 960540 (1996)  
**Type / status:** inspection / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1996-12-31

Gas transmission and gathering; reporting year 1996; LA. Operator-reported infrastructure data.

## Document text

Gas transmission and gathering annual report for reporting year 1996, submitted by MALLARD PIPELINE CO (operator 12057). Reported scope: LA. Represented states: LA. The sortable date is the reporting-period end, not the operator submission date.

## Provenance

- Official: Yes
- Source: <https://data.transportation.gov/d/aemm-7pyq>
- Source ID: `phmsa-annual-reports`
- SHA-256: `4e5fc267799caf753f5870d17601dc3980c1986475468de73b8f9175813e2333`
- Retrieved: 2026-08-13T02:59:50.318Z
- Exported: 2026-08-25T06:10:02.338Z
- Document slug: `phmsa-annual-926228678ffd49cd4730f782`

### Source metadata

```json
{
  "materialSubtype": "phmsa_pipeline_annual_report",
  "dataset": "gas_transmission_gathering",
  "reportYear": 1996,
  "reportNumber": "960540",
  "supplementalNumber": null,
  "sourceFormat": "modern_xlsx",
  "operator": {
    "id": "12057",
    "name": "MALLARD PIPELINE CO"
  },
  "region": "LA",
  "commodity": null,
  "representedStates": [
    "LA"
  ],
  "jurisdictionClasses": [],
  "facilities": [],
  "metrics": {},
  "dependentRowsBySheet": {},
  "dataAsOf": null,
  "reportingPeriodEnd": "1996-12-31",
  "dateBasis": "calendar_year_end_not_submission_date",
  "provenance": {
    "archive": "annual_gas_transmission_gathering_1970_2000.zip",
    "archiveSha256": "0045b2ed5b6e0037084234547050cf80d07aa8c8444155af8f8c651a8b2d0bdd",
    "workbook": "annual_gas_transmission_gathering_1996.xlsx",
    "sheet": "GTGG AR 1996",
    "rowNumber": 527,
    "sourceRowNumbers": [
      527
    ],
    "rowSha256": "079a8532f7edb34e2b2ebb30a7e8530a59f406282b2823da45fa535e7681b199"
  },
  "caveat": "Operator-reported annual infrastructure data may be corrected. The indexed date is the reporting-period end, not the submission date, and the record is not an agency finding about current facility condition.",
  "jurisdiction": "US",
  "operatorName": "MALLARD PIPELINE CO"
}
```