EXHIBIT 21.1


SUBSIDIARIES
OF
ST. MARY LAND & EXPLORATION COMPANY

 
A.    Wholly-owned subsidiaries of St. Mary Land & Exploration Company, a Delaware corporation:
1.   Four Winds Marketing, LLC, a Colorado limited liability company
2.  
St. Mary East Texas LLC, a Colorado limited liability company
3.  
Energy Leasing, Inc., an Oklahoma corporation
4.  
Belring GP LLC, a Delaware limited liability company
5.  
St. Mary Energy Louisiana LLC, a Delaware limited liability company
6.   Hilltop Investments, a Colorado general partnership
7.  
Parish Ventures, a Colorado general partnership

B.           Other subsidiaries of St. Mary Land & Exploration Company:

1.  
Box Church Gas Gathering, LLC, a Colorado limited liability company (58.6754%)
2.  
SMI 281, LLC (2%)
3.  
Wilkinson Pipeline, LLC (24%)
 
C.    Partnership or limited liability company interests held by St. Mary Land & Exploration Company:
1.  
Trinity River Services LLC, a Texas limited liability company (25%)
2.  
1977 H.B Joint Account, a Colorado general partnership (8%)
3.  
1976 H.B Joint Account, a Colorado general partnership (9%)
4.  
1974 H.B Joint Account, a Colorado general partnership (4%)
5.  
Sycamore Gas Systems (3%)
6.  
Gil Data Base Systems (10%)
 
D.    Partnership interests held by St. Mary East Texas, LLC:
 
 
1.  
St. Mary East Texas LP, a Texas limited partnership (99%)(the remaining 1% interest is held by St. Mary Land & Exploration Company)