EX-21.1 3 a05-21762_1ex21d1.htm SUBSIDIARIES OF THE REGISTRANT

Exhibit 21.1

 

Subsidiaries of Western Gas Resources, Inc.

 

Name of Subsidiary

 

Relationship

 

 

 

1)

 

MIGC, Inc., a Delaware corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

2)

 

MGTC, Inc., a Wyoming corporation

 

Wholly owned subsidiary of MIGC, Inc.

 

 

 

 

 

3)

 

Western Gas Resources - Texas, Inc., a Texas corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

4)

 

Mountain Gas Resources, Inc., a Delaware corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

5)

 

Western Power Services, Inc., a Delaware corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

6)

 

WGR Canada, Inc., a New Brunswick corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

7)

 

Lance Oil & Gas Company, Inc., a Delaware corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

8)

 

Mountain Gas Transportation, Inc., a Delaware corporation

 

Wholly owned subsidiary of Mountain Gas Resources, Inc.

 

 

 

 

 

9)

 

Western Gas Wyoming, L.L.C., a Wyoming L.L.C.

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

10)

 

Western Gas Resources – Westana, Inc., a Delaware corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

11)

 

Western Gas Resources – Sand Wash, Inc., a Colorado corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

12)

 

Rising Star Pipeline Corporation, a Delaware corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

13)

 

Setting Sun Pipeline Corporation, a Delaware corporation

 

Wholly owned subsidiary of Western Gas Resources, Inc.

 

 

 

 

 

14)

 

Western Gas Resources Canada Company, a Nova Scotia unlimited liability company

 

Wholly owned subsidiary of Western Gas Wyoming, L.L.C.