Overview 1

2 WITSML Special Interest Group Members A set of Data Exchange and Web Services Standards First published in 2001 Version 1.4 due in Q3 50+ Companies Hosted and Facilitated by Energistics Semi-annual Events

3 Industry Services SIG Technical Architecture Energy Identity Trust Energistics Subject Areas Reservoir Engineering Expl Geology PetrophysicsPetroleum Engineering Drilling Engineering Production Geology Production Engineering Facilities Engineering Production OperationsGeophysics Drilling Operations Completion & Workover Asset Management Reservoir Engineering Expl Geology PetrophysicsPetroleum Engineering Drilling Engineering Production Geology Production Engineering Facilities Engineering Production Operations Geophysics Drilling Operations Completion & Workover SIG Geophysics SIG SIG Geology SIG Asset/Data Management SIG eRegulatory SIG

4 General Well Message Operations Report Real Time Wellbore Wellbore Geometry Risk Directional Drilling Systems Tubular / Bit Record BHA Run Fluids Systems Fluids Report Surface Logging Mud Log Logging While Drilling Log  Well Log (includes Wireline) Formation Marker Coring Sidewall Core Conventional Core Surveying Survey Program Target Trajectory Rig Instrumentation Rig / Rig Equipment Cement Job Source: BakerHughes/Paradigm Communication Subscription Server Capabilities Original Updated Added WITSML Data Object Schemas (XML) Coordinate Ref Sys Drill Report Attachment

5 General Well Wellbore Wellbore Geometry Operations Report Drill Report Real Time Message Risk Change Log Attachment Coordinate Reference System Source: BakerHughes/Paradigm Communication Subscription Server Capabilities Original Updated Added WITSML Data Object Schemas (XML) Aggregate Report