SM Energy Co — Director's Dealing 2010

Mar 2, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ST MARY LAND & EXPLORATION CO (SM)
CIK: 0000893538
Period of Report: 2009-12-31

Reporting Person: Zubieta Dennis A. (VP-Engineering & Evaluation)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2009-12-31	Common Stock; $.01 Par Value	J	405	$17.978	Acquired	12008	Direct
2010-02-28	Common Stock; $.01 Par Value	M	325	—	Acquired	12333	Direct
2010-02-28	Common Stock; $.01 Par Value	F	114	$32.58	Disposed	12219	Direct
2010-02-28	Common Stock; $.01 Par Value	M	129	—	Acquired	12348	Direct
2010-02-28	Common Stock; $.01 Par Value	F	49	$32.58	Disposed	12299	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-02-28	Restricted Stock Units	$	M	325	Acquired	2010-02-28	Common Stock (325)	Direct
2010-02-28	Restricted Stock Units	$	M	129	Acquired	2010-02-28	Common Stock (129)	Direct

Footnotes

F1: The reporting person purchased 405 shares of the issuer's common stock on December 31, 2009, through the issuer's Employee Stock Purchase Plan.

F2: Each restricted stock unit represents a contingent right to receive one share of stock. The restricted stock units were granted on February 28, 2008, are associated with fiscal year 2007, and vest in four equal installments beginning on the grant date. On the vesting dates, shares are issued to the reporting person, at which time all restrictions on the vested shares will lapse.

F3: Each restricted stock unit represents a contingent right to receive one share of stock. The restricted stock units were granted on February 28, 2007, are associated with fiscal year 2006, and vest in four equal installments beginning on the grant date. On the vesting dates, shares are issued to the reporting person, at which time all restrictions on the vested shares will lapse.