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EXHIBIT 21.1
SUBSIDIARIES
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PERCENT PLACE OF
OWNERSHIP INCORPORATION
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CMS Oil and Gas Company Michigan
CMS Oil and Gas (International) Ltd. 100% Cayman Islands
CMS Oil and Gas (Alba) LDC 100% Cayman Islands
CMS Oil and Gas (Argentina) LDC 100% Cayman Islands
CMS Oil and Gas (E.G.) LDC 100% Cayman Islands
Alba Associates LLC (partial interest owned by CMS Oil and
Gas (Alba) LDC, CMS Oil and Gas (E.G.) LDC and CMS Oil 54% Cayman Islands
and Gas (E.G.) Ltd.)
Alba Plant LLC 80% Cayman Islands
Punta Europa LLC (50% owned by CMS Oil and Gas (Alba) 100% Cayman Islands
LDC and 50% owned by CMS Oil and Gas (E.G.) LDC)
CMS Oil and Gas (E.G.) Ltd. 100% Cayman Islands
CMS Oil and Gas (Congo) Ltd. 100% Cayman Islands
CMS Oil and Gas (Venezuela) LDC 100% Cayman Islands
CMS Oil and Gas (International) Company 100% Texas
CMS NOMECO International Congo Holdings, Inc. 100% Texas
CMS NOMECO Congo, Inc. 100% Delaware
CMS Oil and Gas (Cameroon) Ltd. 100% Cayman Islands
CMS Oil and Gas (Cote d'Ivoire) Ltd. 100% Cayman Islands
CMS Oil and Gas (Eritrea) Ltd. 100% Cayman Islands
CMS Oil and Gas (Services) Company 100% Texas
CMS Oil and Gas International (Tunisia) Company 100% Texas
CMS Oil and Gas (Pipeline) Company 100% Michigan
Explotaciones CMS Oil and Gas Company 100% Delaware
NOMECO Ecuador Oil Company 100% Michigan
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