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

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(Print or Type Responses)

1. Name and Address of Reporting Person * Morris William M   2. Issuer Name and Ticker or Trading Symbol LEGACY RESERVES L P [LGCY] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP, CAO and Controller (Last) (First) (Middle) 303 W. WALL STREET, SUITE 1600 3. Date of Earliest Transaction (Month/Day/Year) 04/11/2007 (Street) MIDLAND, TX 79701 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 Units representing limited partner interests 04/11/2007   M   6,680 A $ 17 41,757 (1) D   Units representing limited partner interests 04/11/2007   J(2)   6,680 D $ 28.01 35,077 (1) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Unit Options (right to buy)

$ 17

04/11/2007

M

6,680

03/15/2007

07/17/2011

Units

6,680

$ 0

13,320

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Morris William M 303 W. WALL STREET SUITE 1600 MIDLAND, TX 79701			VP, CAO and Controller

Signatures

/s/ William M. Morris		04/11/2007
**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)	Includes 35,077 restricted units granted to Mr. Morris on March 15, 2006. The restricted units vest one-third each year over three years following the grant date, subject to accelerated vesting under certain conditions.
(2)	On April 11, 2007, Mr. Morris exercised 6,680 vested unit options at an exercise price of $17.00 per unit and immediately following such exercise transferred the units received upon such exercise to the Issuer in exchange for a payment by the Issuer of $28.01 per unit, the closing price of the Issuer's units on the NASDAQ Global Market on such date. Mr. Morris used the proceeds of the transactions to pay tax liability with respect to the exercise and vesting of awards under the Legacy Reserves LP Long-Term Incentive Plan.

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