1. 1 Global Unique Well Identifier (GUWI) Initiative Progress Report POSC DSS SIG Meeting, Houston, 22 March 2006 Authoring Team: John AdamsConocoPhillips Alan DonigerPOSC Kristine Gibbons Shell

2. 2 Outline Background to the activity Current activities Next steps Questions

3. 3 Background Panel discussion on well identifiers at PNEC Data Management Conference (May 2003) –Ad hoc group of volunteers agreed to work the issue Authoring team established to document the problem and propose a solution (July 2003) Discussion document issued for comment (Feb 2004) Review of feedback with full steering team (March 2004) Direct discussions with Data Vendors (Summer-Autumn 2004) Letter of Intent issued (March 2005) / received (Fall 2005)

4. 4 Benefits Direct cost savings –Replace dedicated in-house wellbore identification management with a shared service funded by E&P industry Indirect cost savings –Reduce instances of re-doing work after well/wellbore identity problem is discovered –Simplify data integration of vendor/partner data –Improve efficiency of Acquisition and Disposition activities

5. 5 Current Steering Team Members A2D BP Richard Miller Burlington Resources Chris Troyer ChevronTexaco Yaw Adu ConocoPhillips John Adams * Deloitte Graham Sadler ExxonMobil Mike Mischler Fugro-Robertson Simon Kendall IHS Energy Melissa Manning Marathon Damon Simmons Nexen Pat Ryan POSC Alan Doniger * Shell Kris Gibbons * Tobin Martin Schardt US DOI Chris Gaudry Wood Mackenzie Charles Mitchell * authoring team member

6. 6 Conceptual Work Flow Query Request Registration Request Host: POSC Sponsors Steering Group Well Identity Service

7. 7 Next steps - LOI Letter of Intent –Steering Committee: LOI signees or designated representatives –Conference call to review discussions w/ interested service providers pending Signed letters received to date: –British Petroleum –Burlington Resources –ExxonMobil –Marathon –Shell –POSC

8. 8 IHS Webcast IHS Presentation to selected customers: –Reviewed an increased service provision from the original AAPG initiative (which Petroconsultants agreed to provide in 1996) –Input from participants included a request from an operator to see a formal, official declaration of service provision outlining the increased service/improvements in cooperation with the GUWI initiative.

9. 9 Next steps Operational Steering Team –Made up of companies that sign the Letter of Intent –Issue and manage the RFP process –Plan and seek approval for business plan, including issues of funding, governance development / deployment –Complete service provider selection –Work with POSC to establish legal framework for Well Identity Service Work Group including funding and service agreements, governance and operational procedures –Plan and execute launch

10. 10 Questions Background to the activity Current activities Next steps Questions