FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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

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(Print or Type Responses)

1. Name and Address of Reporting Person *   Zubieta Dennis A. 2. Date of Event Requiring Statement (Month/Day/Year) 08/07/2008 3. Issuer Name and Ticker or Trading Symbol ST MARY LAND & EXPLORATION CO [SM] (Last) (First) (Middle) 1776 LINCOLN STREET, SUITE 700 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP-Engineering & Evaluation 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) DENVER, CO 80203 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 7,862 D Â

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right-To-Buy)	  (1)	12/31/2010	Common Stock	15,644	$ 16.6563	D	Â
Stock Option (Right-To-Buy)	  (2)	09/30/2011	Common Stock	3,524	$ 7.965	D	Â
Stock Option (Right-To-Buy)	  (3)	12/31/2011	Common Stock	3,524	$ 10.595	D	Â
Stock Option (Right-To-Buy)	  (4)	03/31/2012	Common Stock	3,522	$ 10.855	D	Â
Stock Option (Right-To-Buy)	  (5)	06/30/2012	Common Stock	3,522	$ 12.03	D	Â
Stock Option (Right-To-Buy)	  (6)	09/30/2012	Common Stock	3,188	$ 11.95	D	Â
Stock Option (Right-To-Buy)	  (7)	12/31/2012	Common Stock	3,188	$ 12.5	D	Â
Stock Option (Right-To-Buy)	  (8)	03/31/2013	Common Stock	3,186	$ 12.525	D	Â
Stock Option (Right-To-Buy)	  (9)	06/30/2013	Common Stock	786	$ 13.65	D	Â
Stock Option (Right-To-Buy)	  (10)	06/30/2013	Common Stock	2,400	$ 13.65	D	Â
Stock Option (Right-To-Buy)	  (11)	09/30/2013	Common Stock	2,508	$ 12.66	D	Â
Stock Option (Right-To-Buy)	  (12)	10/22/2013	Common Stock	470	$ 13.39	D	Â
Stock Option (Right-To-Buy)	  (13)	12/31/2013	Common Stock	2,976	$ 14.25	D	Â
Restricted Stock Units	  (15)	  (15)	Common Stock	975	$ (14)	D	Â
Restricted Stock Units	  (16)	  (16)	Common Stock	2,496	$ (14)	D	Â
Restricted Stock Units	  (17)	  (17)	Common Stock	258	$ (14)	D	Â
Restricted Stock Units	  (18)	  (18)	Common Stock	918	$ (14)	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Zubieta Dennis A. 1776 LINCOLN STREET SUITE 700 DENVER, CO 80203	Â	Â	  VP-Engineering & Evaluation	Â

Signatures

Karin M. Writer (Attorney-In-Fact)		08/18/2008
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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 option vests in four equal installments beginning December 31, 2000.
(2)	The option vests in four equal installments beginning September 30, 2001.
(3)	The option vests as follows: 881 shares on December 31, 2001, and the remainder in three subsequent equal annual installments beginning on September 30, 2002.
(4)	The option vests as follows: 881 shares on March 31, 2002, and the remainder in three subsequent equal annual installments beginning on September 30, 2002.
(5)	The option vests as follows: 881 shares on June 30, 2002, and the remainder in three subsequent equal annual installments beginning on September 30, 2002.
(6)	The option vests in four equal annual installments beginning on September 30, 2002.
(7)	The option vests as follows: 797 shares on December 31, 2002, and the remainder in three subsequent equal annual installments beginning on September 30, 2003.
(8)	The option vests as follows: 797 shares on March 31, 2003, and the remainder in three subsequent equal annual installments beginning on September 30, 2003.
(9)	The option vests as follows: 196 shares on June 30, 2003, and the remainder in three subsequent equal annual installments beginning on September 30, 2003.
(10)	The option vests as follows: 600 shares on June 30, 2003, and the remainder in three subsequent equal annual installments beginning on September 30, 2003.
(11)	The option vests in four equal annual installments beginning on September 30, 2003.
(12)	The option vests as follows: 118 shares on October 22, 2003, and the remainder in three subsequent equal annual installments beginning on September 30, 2004.
(13)	The option vests as follows: 744 shares on December 31, 2003, and the remainder in three subsequent equal annual installments beginning on September 30, 2004.
(14)	Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock.
(15)	The restricted stock units vest in four equal annual installments beginning on February 28, 2008. The vested shares will be issued to the reporting person on the vesting dates, at which time all restrictions on the vested shares will lapse.
(16)	The restricted stock units vest in three equal annual installments beginning on December 15, 2008. The vested shares will be issued to the reporting person on the vesting dates, at which time all restrictions on the vested shares will lapse.
(17)	The restricted stock units vest in four equal annual installments beginning on February 28, 2007. The vested shares will be issued to the reporting person on the vesting dates, at which time all restrictions on the vested shares will lapse.
(18)	The restricted stock units vest in four equal annual installments beginning on February 28, 2006. The vested shares will be issued to the reporting person on the vesting dates, at which time all restrictions on the vested shares will lapse.

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