Exhibit 21.1
SUBSIDIARIES OF THE COMPANY
as of December 31, 2010
Subsidiaries | State or Jurisdiction of Organization | |||||||||
Pioneer Natural Resources USA, Inc. | Delaware | |||||||||
DMLP CO. | Delaware | |||||||||
Long Canyon Gas Company, LLC | (75.4%) | Colorado | ||||||||
Lorencito Gas Gathering, LLC | (85%) | Colorado | ||||||||
Mesa Environmental Ventures Co. | Delaware | |||||||||
Petroleum South Cape (Pty) Ltd. | South Africa | |||||||||
Pioneer JDZ Limited | Nigeria | |||||||||
Pioneer Natural Gas Company | Texas | |||||||||
Pioneer Natural Resources Alaska, Inc. | Delaware | |||||||||
Pioneer Natural Resources Algeria Limited | Cayman Islands | |||||||||
Pioneer Natural Resources Anaguid Ltd. | Cayman Islands | |||||||||
Pioneer Natural Resources Foundation | Texas | |||||||||
Pioneer Natural Resources GP LLC | Delaware | |||||||||
Pioneer Natural Resources Midstream Holding LLC | Delaware | |||||||||
Pioneer Natural Resources Morocco Limited | Cayman Islands | |||||||||
Pioneer Natural Resources South Africa (Pty) Limited | South Africa | |||||||||
Pioneer Natural Resources (Tierra Del Fuego) S.R.L. | Argentina | |||||||||
Pioneer Natural Resources Tunisia Ltd. | Cayman Islands | |||||||||
Pioneer Natural Resources UK Limited | England | |||||||||
Pioneer Natural Resources West Africa Limited | Cayman Islands | |||||||||
Pioneer Natural Resources Equatorial Guinea Limited | Cayman Islands | |||||||||
Pioneer Nigeria Deepwater Limited | Nigeria | |||||||||
Pioneer Resources Africa Limited | Cayman Islands | |||||||||
Pioneer Natural Resources Nigeria Ltd. | Cayman Islands | |||||||||
Pioneer NR Nigeria (256) Limited | Nigeria | |||||||||
Pioneer Resources Gabon Limited | Bahamas | |||||||||
Pioneer Southwest Energy Partners L.P. | (61.9%) | Delaware | ||||||||
Pioneer Southwest Energy Partners USA LLC | Delaware | |||||||||
PSE Finance Corporation | Delaware | |||||||||
Pioneer Uravan, Inc. | Texas | |||||||||
Sendero Holding Company, LLC | Delaware | |||||||||
Sendero Drilling Company, LLC | (98.34699%) | Delaware | ||||||||
Westpan Limited NGL LLC | Texas | |||||||||
Westpan Limited Resources LLC | Texas | |||||||||
Pioneer International Resources Company | Delaware | |||||||||
LF Holding Company LDC | Cayman Islands | |||||||||
Parker & Parsley Argentina, Inc. | Delaware | |||||||||
TDF Holding Company LDC | Cayman Islands | |||||||||
Pioneer Shelf Properties Incorporated | Delaware | |||||||||
Partnerships in which Pioneer Natural Resources USA, Inc. is the managing general partner: | ||||||||||
Parker & Parsley 87-A Conv., Ltd. | Texas | |||||||||
Parker & Parsley Private Investment 88 L.P. | Delaware | |||||||||
Parker & Parsley Private Investment 89, L.P. | Delaware | |||||||||
Parker & Parsley 90 Spraberry Private Development, L.P. | Delaware | |||||||||
Midkiff Development Drilling Program, Ltd. | Texas |
Notes:
1. | Indented names are subsidiaries of subsidiaries. |
2. | Inclusion in the list is not a representation that the subsidiary is a significant subsidiary. |
3. | Except as noted, the voting shares of all subsidiaries are 100% owned by Pioneer Natural Resources Company or its subsidiaries. |