EXHIBIT 21.1

APACHE CORPORATION
LISTING OF SUBSIDIARIES

EXACT NAME OF SUBSIDIARY JURISDICTION OF
AND NAME UNDER WHICH INCORPORATION OR
SUBSIDIARY DOES BUSINESS ORGANIZATION
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Apache Foundation Minnesota
Apache Gathering Company Delaware
Apache Holdings, Inc. Delaware
Apache International, Inc. Delaware
Apache Cote d'Ivoire, Inc. Delaware
Apache Oil Australia Pty Limited New South Wales, Australia
Apache Oil Azerbaijan, Inc. Delaware
Apache Oil Congo, Inc. Delaware
Apache Oil Egypt, Inc. Delaware
Apache Oil Java Sea, Inc. Delaware
Apache Oil Sumatra, Inc. Delaware
Apache Overseas, Inc. Delaware
Apache China Corporation LDC Cayman Islands
Apache Cote d'Ivoire Petroleum LDC Cayman Islands
MW Petroleum Corporation Colorado
MWJR Petroleum Corporation Delaware
Nagasco, Inc. Delaware
Apache NGC, Inc. Delaware
Apache Marketing, Inc. Delaware
Apache Transmission Corporation - Texas Texas
Apache Crude Oil Marketing, Inc. Delaware
Nagasco Marketing, Inc. Delaware
Apache Corporation (New Jersey) New Jersey
Apache-Beals Corporation New York
Apache Oil Corporation Texas
Burns Manufacturing Company Minnesota
Apache Energy Resources Corporation Delaware
Apache Bentu Limited Oklahoma
Hadson Bunyu Limited Oklahoma
Apache Energy Limited Western Australia
Apache Northwest Pty Ltd. Western Australia
Petro Energy Limited New South Wales, Australia
Apache Beagle Pty Ltd. Western Australia
Apache Carnarvon Pty Ltd. Western Australia
Apache Dampier Pty Ltd. Western Australia
Hadson Pacific Pty Ltd. Western Australia
Hadson Timor Sea Pty Ltd. Western Australia
Apache (WA 225) Pty Ltd. Western Australia
Mid Equipment, Incorporated Delaware
DEKALB Energy Company Delaware
DEKALB Energy Texas, Inc. Delaware
DEKALB Equipment Leasing Corporation #2 Delaware
DEKALB Exploration Inc. Delaware
DEKALB Gas Marketing, Inc. Delaware
DEKALB International Sales Corporation Delaware
DEKALB Petroleum Corporation Illinois
DEKALB Energy Canada Ltd. Alberta, Canada
DEPCO, Inc. Texas
Heinold Holdings, Inc. Delaware
Kishwaukee Development Corporation Illinois
Western Cattle Systems, Inc. Delaware