U.S. Bureau of Land Management Oil and Gas Leases

BLM Natl MLRS Oil and Gas Leases contains oil and gas lease cases from the U.S. Bureau of Land Management's Mineral and Land Record System, geocoded using the Public Land Survey System. Each case includes a data quality score grouped into seven categories based on mapping accuracy. The dataset is maintained by the Department of the Interior.

Use Cases

• Analyze the distribution of lease cases by data quality score group to assess geospatial completeness.
• Map lease locations using the Public Land Survey System (PLSS) geometry for spatial analysis of energy authorizations.
• Identify cases with 'No NLSDB Geometry, Only Attributes' (scores 11, 12, 20, 21, 22) for data remediation or attribute-only studies.
• Filter for cases with 'Improved Geometry' (score 100) edited by BLM staff for higher-accuracy geospatial modeling.

Strengths

• Data includes a detailed quality scoring system with seven distinct groups for assessing mapping accuracy.
• Geospatial data is derived from the authoritative BLM Cadastral Survey workforce.
• Dataset is available in multiple formats including GEOJSON, KML, and CSV for flexible use.

Limitations

• Geospatial representations are missing for cases that could not be geocoded by the MLRS algorithm.
• Sample data and specific row/column counts are unavailable, limiting preliminary assessment of dataset scale.
• Tags suggest a broad geographic scope but specific spatial coverage per state is not detailed.

Provenance

Source

U.S. Bureau of Land Management's Mineral and Land Record System (MLRS).

Collection Method

Cases derived from Legal Land Descriptions (LLD) and geocoded using the Public Land Survey System (PLSS).

Freshness

Last updated on 2026-03-03.

Geography

United States, as indicated by state tags including Alaska, California, Colorado, Florida, and others.