TCW Asset Management Company A Market Leader in Energy & Infrastructure Investing

1. TCW Asset Management CompanyA Market Leader in Energy & Infrastructure Investing

2. TCW Overview Established in 1971 in Los Angeles, California Approximately $120 billion under management or committed to management as of September 30, 2008 Approximately 1,430 institutional and private clients TCW Staff of over 655 individuals, including 390 investment and administrative professionals The TCW Group, Inc. (TCW) is an indirect subsidiary of Société Générale, S.A., and a member of the Société Générale Asset Management (SGAM) division Offices: 1

3. TCW Energy & Infrastructure Group • Among the leading institutional providers of capital to the energy sector globally • Singular focus on energy and energy-related infrastructure • Broad offering of capital to industry (senior debt through equity) • Global investment focus (invested in 30 countries on 6 continents) • TCW’s first alternative product (1982) • 27-year track record; the longest in the industry • 14 prior funds • Current assets under management of $7 billion in energy globally • 260+ portfolio investments • Demonstrated investment performance through multiple commodity and business cycles • Strong and consistent performance over 27 years • Global investment platform • 35 investment professionals • Operate from offices in Los Angeles, Houston, New York, London and Sydney

4. Target Market • Actively investing throughout the energy value chain on a global basis Renewables Upstream Infrastructure Midstream Gas to Liquids Transportation Gas to Electrons Pipeline Gathering Systems Processing Facilities Gas Storage Bunkering Wind Solar Biofuels Geothermal Reserve-based Development Production Payments Forward Oil Sales LNG Tankers Specialty Tankers VLCC Vessels Production Platforms Drill Ships FPSOs Drilling Rigs LNG Synfuels Processed Gas (methanol, fertilizer, DME) LNG Regasification Terminals Gas Sales, Pipelines, Gas-Fired Power Plants, Electricity T&D

5. EIG History Capital Raised: $10 billion # Funds: Currently investing 14th fund Invested Capital: $9.7 billion # Investments: 260+ Investments Current Outstanding: $4 billion Capital Available Today: $1.2 billion TCW’s Energy & Infrastructure Group has had a consistent presence in the energy markets over the last 27 years. The TCW Energy & Infrastructure Group’s History of Success in all Markets 4

6. EIG Product Platform Broad offering of capital to industry, offering senior debt through to equity Breakdown of Committed Funds (as at December 2008) 5

7. EIG Investment Breakdown – FYE 2008 $2.2 Billion Investments By Sub-Sector As at Dec 2008, In $ Millions Investments By Ranking As at Dec 2008, In $ Millions 6

8. Oil and Gas Risk/Return Profile Return Equity Pref. Equity TCW Sweet Spot Mezzanine VPP Senior Debt Risk PDNP PROB/POSS Exploration Prospects PDP PUD Engineering Risk Geological/GeophysicalRisk TCW’s focus is on engineering and development risk, not geological and exploration risk

9. Capital Markets Source: Bloomberg, Morgan Stanley

10. Recent Trends Last Few Years: • Great time to be an issuer of capital • Abundance of private equity, public equity, and cheap debt capital • Widely syndicated debt issuances with generous credit terms • New and less experienced investors/lenders • Active M&A market with increasing asset valuations Today: • M&A and capital markets have dried up • Bank re-determinations putting pressure on corporate balance sheets • Borrowing Base reductions and overadvances coming due with little or no ability to refinance • Unappealing prospects of obtaining amendments from broad group of lenders with limited E&P experience • E&P companies forced to high grade projects and live within cash flow • Resource play economics largely depend on entry/acreage costs • Investors/Lenders presented with appealing risk/return opportunities in the high yield debt markets

11. Disciplined, Value-Oriented Approach to Investing • TCW’s Current Investment Bias • Stay the course: continue to focus on quality management teams and assets • Presented with opportunities that historically we would not have seen • Investment Size: $100-200 million • Patience • Keys to EIG investment style • Hard assets with long useful life • Bottom-up internal technical analysis • Secured by shares or assets • Transparency to cash flow • Active management through covenants and board presentation • Upside potential through equity participation • Experienced E&P Staff • Based in Houston • 12 professionals with 5 petroleum engineers • Senior people each have over 25 years of E&P experience

12. Recent TCW Deals (Q4 2008) • California Steam Flood • $250 million senior secured debt facility • Interest Rate + Variable NPI • Resource Play Development • $200 million senior secured debt facility • Interest Rate + NPI • Australian Offshore Development • $100 million subordinated debt facility • Interest Rate + Warrants

13. TCW Contact Information Houston Office: 333 Clay Street, Suite 4150 Houston, TX 77002 713-615-7400 Main 713-615-7460 Fax Kurt Talbot 713-615-7426 kurt.talbot@tcw.com Patrick Hickey 713-615-7413 patrick.hickey@tcw.com Curt Taylor 713-615-7410 curt.taylor@tcw.com Clay Taylor 713-615-7423 clay.taylor@tcw.com Larry Tharp 713-615-7437 larry.tharp@tcw.com Samantha Meador 713-615-7425 samantha.meador@tcw.com Richard Punches 713-615-7415 richard.punches@tcw.com