Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
CONGDON THOMAS E
  2. Issuer Name and Ticker or Trading Symbol
ST MARY LAND & EXPLORATION CO [SM]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
1776 LINCOLN ST, STE 700
3. Date of Earliest Transaction (Month/Day/Year)
03/02/2005
(Street)

DENVER, CO 80203
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock; $.01 Par Value 03/02/2005   G V 8,000 (1) D $ 0 107,128 (1) (2) D  
Common Stock; $.01 Par Value 11/08/2005   S   400 (3) D $ 34.08 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   100 (3) D $ 34.07 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   900 (3) D $ 34.06 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   200 (3) D $ 34.05 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   1,400 (3) D $ 34.04 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   400 (3) D $ 34.03 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   500 (3) D $ 34.02 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   1,300 (3) D $ 34.01 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   2,500 (3) D $ 34 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   2,900 (3) D $ 33.99 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   2,900 (3) D $ 33.98 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   1,900 (3) D $ 33.97 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   600 (3) D $ 33.96 107,128 (2) (3) I By Self as VP for Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   2,100 (3) D $ 33.95 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   2,200 (3) D $ 33.94 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   1,100 (3) D $ 33.93 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/05/2005   S   500 (3) D $ 33.92 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   3,400 (3) D $ 33.91 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   21,100 (3) D $ 33.9 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   1,200 (3) D $ 33.89 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   300 (3) D $ 33.88 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   700 (3) D $ 33.87 107,128 (2) (3) I By Self as VP for Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   1,100 (3) D $ 33.86 107,128 (2) (3) I By Self as VP for Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   2,000 (3) D $ 33.85 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   1,500 (3) D $ 33.84 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   500 (3) D $ 33.83 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   9,900 (3) D $ 33.8 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   600 (3) D $ 33.55 107,128 (2) (3) I By Self as VP of Argentum Foundation
Common Stock; $.01 Par Value 11/08/2005   S   307 (3) D $ 33.57 107,128 (2) (3) I By Self as VP of Argentum Foundation

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CONGDON THOMAS E
1776 LINCOLN ST
STE 700
DENVER, CO 80203
  X      

Signatures

 Karin M. Writer (Attorney-In-Fact)   11/10/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The 8,000 share disposition occurred as a gift of stock on March 2, 2005 to a charitable organization in which Mr. Congdon has no direct relationship. The share total has not been adjusted since the previously reported balance had incorrectly excluded the shares.
(2) Mr. Congdon's spouse owns 9,103 shares of the issuer's common stock which is included in this amount and for which Mr. Congdon is deemed to be the indirect owner.
(3) On November 8, 2005, 64,507 shares of the issuer's common stock were sold by a charitable foundation. Mr. Congdon is the Vice President of this foundation and he has sole depositive power over the assets of the foundation. The share total has not been adjusted as the previously reported balance had incorrectly excluded these shares.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.