1
EXHIBIT 21.1
SUBSIDIARIES OF THE COMPANY
State or Jurisdiction
of Organization Subsidiaries
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Australia Antenor P/L
Switzerland Aredor Distribution Company Ltd.
Australia Aredor Holdings Ltd.
Australia Bridge Oil Australia Pty Ltd.
Australia Bridge Oil Services (Overseas) P/L
Delaware Bridge Oil (U.S.A.) Inc.
Australia Bridge Oil ZOCA 91-13 P/L
Bermuda CR International Limited
Delaware DMLP Co.
Delaware Doram Energy, Inc.
Texas Dorchester Gas Systems, Inc.
Texas Dorchester Intrastate Gas Systems, L.P.
Delaware Mesa Environmental Ventures Co.
Texas Mesa Offshore Royalty Partnership
Delaware P&PCanada LP Co.
Delaware Parker & Parsley Argentina, Inc.
Canada Parker & Parsley (Canada) Petroleum Company
Turks and Caicos Islands Parker & Parsley Capital LLC
Cayman Islands Parker & Parsley International Holdings, Ltd.
Australia Parker & Parsley Petroleum Australia Holdings Pty Limited
Australia Parker & Parsley Petroleum Australia Pty Limited
Texas Pioneer Natural Resources Scholarship Foundation
New York Parker & Parsley Transfer Agent Corporation
Delaware Pioneer Holding Inc.
Delaware Pioneer International Resources Company
Texas Pioneer Natural Gas Company
Argentina Pioneer Natural Resources (Argentina) S.A.
Canada Pioneer Natural Resources Canada Inc.
Cayman Islands Pioneer Natural Resources (Cayman) Ltd.
Cayman Islands Pioneer Natural Resources Guatemala Ltd.
Canada Pioneer Natural Resources (ND) Holdings Inc.
South Africa Pioneer Natural Resources South Africa (Pty) Limited
Argentina Pioneer Natural Resources (Tierra Del Fuego) S.A.
Delaware Pioneer Natural Resources USA, Inc.
Delaware Pioneer NGLs (USA) Inc.
Delaware Pioneer Pipelines (USA) Inc.
Delaware Pioneer Resources Inc.
Bahamas Pioneer Resources Africa, Ltd.
Delaware Pioneer Resources China, Inc.
Bahamas Pioneer Resources Gabon - Olowi Ltd.
Delaware Pioneer Resources (ND) Inc.
Delaware Pioneer Resources Producing L.P.
Texas Pioneer Uravan, Inc.
Delaware PNR Resources (USA) Inc.
Texas PNRC Properties L.P.
Delaware Rosamond Drilling Company, Inc.
Delaware Westpan NGL Co.
2
State or Jurisdiction
of Organization Subsidiaries
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Partnerships that Pioneer Natural Resources USA, Inc. is the managing general partner
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Texas Parker & Parsley 81-I, Ltd.
Texas Parker & Parsley 81-II, Ltd.
Texas Parker & Parsley 82-I, Ltd.
Texas Parker & Parsley 82-II, Ltd.
Texas Parker & Parsley 82-III, Ltd.
Texas Parker & Parsley 83-A, Ltd.
Texas Parker & Parsley 83-B, Ltd.
Texas Parker & Parsley 84-A, Ltd.
Texas Parker & Parsley 85-A, Ltd.
Texas Parker & Parsley 85-B, Ltd.
Texas Parker & Parsley Private Investment 85-A Ltd.
Texas Parker & Parsley Selected 85 Private Investment, Ltd.
Texas Parker & Parsley 86-A, Ltd.
Texas Parker & Parsley 86-B, Ltd.
Texas Parker & Parsley 86-C, Ltd.
Texas Parker & Parsley Private Investment 86, Ltd.
Delaware Parker & Parsley 87-A, Ltd.
Delaware Parker & Parsley 87-B, Ltd.
Delaware Parker & Parsley 87-A Conv., Ltd.
Delaware Parker & Parsley 87-B Conv., Ltd.
Delaware Parker & Parsley Private Investment 87, Ltd.
Delaware Parker & Parsley Producing Properties 87-A, Ltd.
Delaware Parker & Parsley Producing Properties 87-B, Ltd.
Delaware Parker & Parsley 88-A, L.P.
Delaware Parker & Parsley 88-B, L.P.
Delaware Parker & Parsley 88-C, L.P.
Delaware Parker & Parsley 88-A Conv., L.P.
Delaware Parker & Parsley 88-B Conv., L.P.
Delaware Parker & Parsley 88-C Conv., L.P.
Delaware Parker & Parsley Private Investment 88, L.P.
Delaware Parker & Parsley Producing Properties 88-A, L.P.
Delaware Parker & Parsley 89-A, L.P.
Delaware Parker & Parsley 89-B, L.P.
Texas Parker & Parsley 89-A Conv., L.P.
Texas Parker & Parsley 89-B Conv., L.P.
Texas P&P Employees 89-A Conv., L.P.
Texas P&P Employees 89-B Conv., L.P.
Delaware Parker & Parsley Private Investment 89, L.P.
Texas P&P Employees Private Investment 89, L.P.
Delaware Parker & Parsley 90-A Conv., L.P.
Delaware Parker & Parsley 90-B Conv., L.P.
Delaware Parker & Parsley 90-C Conv., L.P.
Delaware Parker & Parsley 90-A, L.P.
Delaware Parker & Parsley 90-B, L.P.
Delaware Parker & Parsley 90-C, L.P.
Texas P&P Employees 90-A Conv., L.P.
Texas P&P Employees 90-B Conv., L.P.
Texas P&P Employees 90-C Conv., L.P.
Delaware Parker & Parsley Private Investment 90 Conv., L.P.
Texas P&P Employees Private Investment 90 Conv., L.P.
Delaware Parker & Parsley 90 Spraberry Private Development Conv., L.P.
Texas P&P Employees 90 Spraberry Private Development L.P.
Delaware Parker & Parsley 91-A, L.P.
Delaware Parker & Parsley 91-B, L.P.
Delaware Parker & Parsley 91-A Conv., L.P.
3
State or Jurisdiction
of Organization Subsidiaries
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Delaware Parker & Parsley 91-B Conv., L.P.
Texas P&P Employees 91-A G.P.
Texas P&P Employees 91-B G.P.
Texas Parker & Parsley 1992 Direct Investment Program, Ltd.
Texas Parker & Parsley 1993 Direct Investment Program, Ltd.
Texas Parker & Parsley 1994 Direct Investment Program, Ltd.
Texas Midkiff Development Drilling Program, Ltd.