Energistics Standards Directory

WITSML Standards

• Version 1.4.1 data schema and API specifications 
• Version History  (includes previous commercial versions)

PRODML Standards

• Version 1.2.2 Data Schema Specifications
• Version 2.1 Web Service Specifications
• Version 1.1 Data Schema and Web Service Specifications
• Deprecated versions

RESQML Standards

• Version 1.1

asset and data management standards

• Energy Industry Profile of ISO 19115-1
• Global Unique Well Identifier Services
• Unit of Measure
• E&P Catalog

industry services

• Web Services Interoperability Standards

regulatory

• ChemicalUsageML Standards

Geology Standards

• Recommended Practices for Core Analysis, February 1998
• Practical Well Log Standards, v2.0
• Recommended Practices for Exploration and Production Digital Data Interchange, RP66v2
• Energistics RP66 Organization Codes
• Log Information Standards (LIS-79)
• WellLogML (deprecated - see WITSML Log data object)
• Standard Legend for Lithology (1995, donated by Shell)