1. DSS SIG Area of Interest –the definition, movement, and storage of E&P data, information, and knowledge. –This group is essentially a cross-vendor, cross-product line user community for data store products and services. Players –operators, service and software providers, government agencies, consultancies, and POSC.

2. DSS SIG Active POSC members include: –Oil companies: Anadarko, BP, ChevronTexaco, ExxonMobil, ONGC, Pioneer NR, Shell –Non-profit: US DOI, UK DTI, Norway NPD –Commercial: Halliburton/Landmark, Paradigm, Petris, Schlumberger, Flare, Oilware, Paras Active on Global Well Identity Initiative Team –Oil companies: Burlington, ChevronTexaco, ExxonMobil, Marathon, Nexen –Non-profit: UK DTI, US DOI –Commercial: A2D, Tobin, IHSE, Fugro-Robertson, Deloitte, Wood Mackenzie

3. DSS SIG History –Formed in July ’02 –Published 5 recommendations in March ’03 1.E&P Catalogue 2.Reference Value Standards 3.Publishing Project Results 4.Data Transfer Standards Directory 5.Previewing Data Transfer Standards

5. DSS SIG History –E&P Catalogue Published initially in early ’03 Several Technical Seminars in ’03 and ‘04 Work by individual member organizations – past and present Commercial product developments - monitoring

6. DSS SIG History –Global Unique Well Identifier Initiative Started in May ’03 Discussion paper published in early ’04 Steering Team of about 15 organizations –Members and non-members of POSC Key issue is global and free access by industry Status –Detailed reviews with data vendors: IHSE, Deloitte, Fugro-Robertson, Wood Mackenzie –Letter of Intent pending for Oil Companies –Request for Proposals being drafted to be sent to Service Providers »global clearing house service »customer-facing services for registration, query, etc. –Progressive coverage starting from the most active exploration and development regions.

7. DSS SIG History –Fluid Property Data Transfer ExxonMobil contribution in ’04 To be promoted for development in ’05 –Lithology Reference Standards Requested by WITSML SIG Mud Log Data Sub-team in late ’03 Request supported by SIG feedback during ’04 POSC has received a number of reference sources Specification included in WITSML Version 1.3 Work continues on a more complete technical specification –Well Symbol Reference Standards Suggested by a number of members Request not supported by SIG feedback No action planned beyond publishing reference sources

8. DSS SIG What’s Next? –E&P Catalogue Evolve specifications Leverage work of member organizations –Global Unique Well Identifier LOIs and RFP; commercial preparations –Lithological Classification Integrate and publish more complete specifications –Fluid Properties Adapt into WITSML architecture Organize sub-team to verify requirements and review results

9. Alan Doniger POSC Chief Technology Officer 24 Greenway Plaza Suite 1000-B Houston, TX 77046-2401 +1 713 267-5124 phone +1 713 784-9219 fax Doniger@POSC.org http://www.posc.org