Companies Familiar with Our Work

Netherland Sewell is one of the most respected names in independent reserve reporting.  Our technical staff has successfully completed thousands of challenging assignments for leading petroleum and financial concerns around the globe.  Our clients include small privately owned oil and gas companies, major and independent oil and gas companies, national oil and gas companies, financial institutions, and investors. Representative lists of companies familiar with our work are shown below.

E&P Companies and Other Clients Familiar with Our Firm

	Addax Petroleum N.V.			Lower Colorado River Authority
	Aguaytia Energy del Peru S.R. Ltda.			Lyco Energy Corporation
	AIG Financial Products Corp.			Maersk Oil and Gas
	Amerada Hess Corporation			Maple Resources Corporation
	AMVEST Osage, Inc.			Marathon Oil Company
	Anadarko Petroleum Corporation			Marlin Energy Offshore, L.L.C.
	Antero Resources Corporation			Marsh Operating Company
	ARROW Energy Ltd.			Medicine Bow Energy Corporation
	Ascent Energy Inc.			Mission Resources Corporation
	Bass Enterprises Production Company			Molopo Australia N.L.
	Belvedere Petroleum NV			Municipal Gas Authority of Georgia
	Berry Petroleum Company			Municipal Light & Power
	BHP Billiton Petroleum Pty Ltd			National Energy Group, Inc.
	Bill Barrett Corporation			Noble Energy, Inc.
	Blue Star Resources, Ltd.			Noble Royalties Inc.
	BP America Inc.			Northern Natural Gas Company
	BreitBurn Energy Company LP			Northstar Gulfsands, LLC
	Canaan Natural Gas Corporation			Occidental Petroleum Corporation
	CAPEX S.A.			Oil Search Limited
	Carneros Energy, Inc.			Omimex de Colombia, Ltd.
	Celero Energy LP			Orion Exploration, LLC
	Century Exploration Company			Paladin Energy Group
	CH4 Pty Ltd			Patina Oil & Gas Corporation
	Challenger Minerals Inc.			PEARL Energy PTE Ltd
	Chesapeake Energy Corporation			Pecten Cameroon Company
	ChevronTexaco			Pemex Exploración y Producción
	ChevronTexaco Australia Pty Ltd			Peoples Energy Corporation
	Citation Oil & Gas Corporation			Petrohawk Energy Corporation
	Cliveden Petroleum Co. LTD			Petroleum Oil and Gas Espana SA
	Compton Petroleum Corporation			Pinnacle Gas Resources, Inc.
	Concho Resources Inc.			Pioneer Natural Resources Company
	ConocoPhillips			Plains Exploration & Production Company
	Constellation Commodities Group			Prima Energy Corporation
	Corda Corporation			Prime Natural Resources, Inc.
	Crimson Energy Company II, L.P.			Provident Energy Ltd
	Davis Petroleum Corporation			QatarGas II Development
	Devon Energy			Queensland Gas Company Limited
	Don O. Chapell, Inc.			Questar Exploration and Production Co.
	Double Eagle Petroleum Company			Quicksilver Resources Inc.
	Dunhill Resources, Inc.			Ras Laffan LNG
	EnCana Corporation			Reef Exploration, Inc.
	Energen Resources Corporation			Remington Oil and Gas Corporation
	Energy Partners, Ltd.			Repsol YPF
	Energy Reserves Group, L.L.C.			Riata Energy, Inc.
	Enogex Exploration Corporation			RIMCO Production Company, Inc.
	EnSight Energy Partners, L.P.			Rosetta Resources Inc.
	Evergreen Resources, Inc.			Sacramento Municipal Utility District
	Everlast Energy LLC			Santos Ltd
	ExxonMobil Production Co.			Seneca Resources Corporation
	Fairways Offshore Exploration, Inc.			Shell (Petroleum Mining) Company Ltd
	FIML Natural Resources, LLC			Southern Star Central Gas Pipeline, Inc.
	Frontera Resources Corporation			Southwestern Energy Production Co.
	Gas Natural SDG, S.A.			Sovereign Oil & Gas Company
	Gasco Energy, Inc.			Staatsolie Maatschappij Suriname N.V.
	Gastar Exploration, Ltd.			Stone Energy Corporation
	Gemini Energy Corp.			Sundown Energy, Inc.
	Greenhill Capital Partners			Talisman Energy Inc.
	GREKA Energy Corporation			Tipperary Corporation
	Gulf Keystone Petroleum Algeria, Ltd.			Trafigura Beheer B.V.
	Hardman Resources LTD			Transworld Exploration and Production, Inc.
	Hardy Exploration & Production (India) Inc.			U.S. Department of Energy
	Harken Energy Corporation			Ultra Petroleum Corporation
	Houston Exploration Company, The			United Resources, LP
	Hunt Oil Company			United States Exploration, Inc.
	Hunt Petroleum Corporation			VAALCO Energy, Inc.
	Infinity Oil & Gas of Wyoming, Inc.			Vanco Energy Company
	Infinity Resources, L.L.C.			Venoco Inc.
	Ivanhoe Energy			Verado Energy, Inc.
	J.M. Huber Corporation			Viersen Oil & Gas Co.
	KCS Energy, Inc.			Vintage Petroleum, Inc.
	Kerr-McGee Oil & Gas Corporation			VirTex Petroleum Co., Inc.
	Kinder Morgan CO2 Company, L.P.			W & T Offshore, Inc.
	KLT Inc.			Williams Energy Services
	Lance Oil & Gas Company, Inc.			Woodside Energy Ltd
	Laredo Energy LLC

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Financial Institutions and Regulatory Agencies Familiar with Our Firm

	ABN-AMRO Bank N.V.			Gulf International Bank B.S.C.
	AIG Financial Products Corp.			Heller Financial, Inc.
	Alberta Securities Commission			Hibernia National Bank
	ANZ Investment Bank			Industrial Bank of Japan, Limited (IBJ)
	Aquila Energy Capital Corporation			ING Bank N.V.
	Arthur Andersen LLP			International Bank of Japan
	Australia & New Zealand Banking Group Limited (ANZ)			International Finance Corp.
	Banco Frances Del Rio De La Plata S.A.			Japan Bank for International Cooperation
	Bank of America			Jefferies & Company, Inc.
	Bank of New York			JPMorgan Chase Bank
	Bank of Scotland			Kayne Anderson Capital Advisors, L.P.
	Bank of Texas N.A.			KPMG Peat Marwick
	Bankers Trust Australia Limited			Lazard Freres & Co.
	Bear, Stearns & Co. Inc.			Lehman Brothers
	BMO Financial Group			Mellon Bank, N.A.
	BNP Paribas			Merrill Lynch & Co., Inc.
	Cambrian Capital Corporation			Mitsui & Co. Ltd.
	Canadian Imperial Bank of Commerce			Moody's Investors Service
	Chemical Bank			Morgan Guaranty Trust Company
	China International Capital Corp. Ltd.			Morgan Stanley Dean Witter
	Citibank, N.A.			National Bank of Canada
	Citicorp (USA), Inc.			National Westminster Bank PLC
	Comerica Bank - Texas			Overseas Private Investment Corporation
	Compass Bank			Pacific Investment Management Company LLC
	Credit Lyonnais			Petrie Parkman & Co. Inc.
	Credit Suisse			Philip Morris Capital Corporation
	Credit Suisse First Boston			PricewaterhouseCoopers, LLP
	Deloitte & Touche LLP			Prudential Capital Group
	Deutsche Bank			PT Bahana Securities
	Dresdner Kleinwort Benson			Putnam Investments
	Drexel Burnham Lambert			Richardson Barr & Co.
	Duke Capital Partners			Robert Fleming & Co. Limited
	E.M. Warburg, Pincus & Co., LLC			Royal Bank of Canada
	Emerging Markets Partnership (Europe) Limited			Royal Bank of Scotland plc
	EnCap Investments L.C.			Salomon Smith Barney Holdings Inc.
	Energy Spectrum			SBC Warburg Dillon Read
	Enerplus Group			Societe Generale
	Ernst & Young			Standard & Poor's Rating Group
	European Bank for Reconstruction and Development			Stratum Group LP
	Evercore Partners Inc.			TCW Asset Management Company
	Export Import Bank of United States			TD Waterhouse
	Fidelity Investments			Texas Capital Bank
	First Albany Capital Inc.			Trust Company of the West
	First National Bank			UBS Warburg LLC
	FMR Corp.			Union Bank & Trust Company
	Frost Bank			Union Bank of California
	GE Capital			Union Bank of Switzerland (UBS)
	GE Capital Services			USBank
	Goldman, Sachs			U.S. Securities and Exchange Commission
	Greenwich Natwest			Waterous & Co.
	Guaranty Bank			World Bank, The

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