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. SMT 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
(59%)
2. Wilkinson
Pipeline, LLC (24%)
C. Partnership
or limited liability company interests held by St. Mary Land & Exploration
Company:
1. Trinity
River Systems, LTD, a Texas limited partnership (21%)
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%)
D. Partnership
interests held by SMT Texas, LLC:
1. St. Mary
Land East Texas LP, a Texas limited partnership (99%)(the remaining 1% interest
is held by St. Mary Land & Exploration
Company)