CUSIP No. 435758305
1. NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
BROWN BROTHERS HARRIMAN & CO.
13-4973745
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ]
(b) [ ]
3. SEC USE ONLY
4. CITIZENSHIP OR PLACE OF ORGANIZATION
U. S. A.
5. SOLE VOTING POWER
4,769,544
6. SHARED VOTING POWER
643,432
7. SOLE DISPOSITIVE POWER
4,769,544
8. SHARED DISPOSITIVE POWER
643,432
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
5,412,976
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW(9) EXCLUDES CERTAIN SHARES*
[ ]
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW [9]
18.16%
12. TYPE OF REPORTING PERSON*
HC
1. NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
BROWN BROTHERS HARRIMAN TRUST COMPANY
13-3193410
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ]
(b) [ ]
3. SEC USE ONLY
4. CITIZENSHIP OR PLACE OF ORGANIZATION
U. S. A.
5. SOLE VOTING POWER
4,769,544
6. SHARED VOTING POWER
643,432
7. SOLE DISPOSITIVE POWER
4,769,544
8. SHARED DISPOSITIVE POWER
643,432
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
5,412,976
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW(9) EXCLUDES CERTAIN SHARES*
[ ]
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW [9]
18.16%
12. TYPE OF REPORTING PERSON*
HC
1. NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
BROWN BROTHERS HARRIMAN TRUST COMPANY OF TEXAS
75-2310600
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ]
(b) [ ]
3. SEC USE ONLY
4. CITIZENSHIP OR PLACE OF ORGANIZATION
U. S. A.
5. SOLE VOTING POWER
4,769,544
6. SHARED VOTING POWER
643,432
7. SOLE DISPOSITIVE POWER
4,769,544
8. SHARED DISPOSITIVE POWER
643,432
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
5,412,976
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW(9) EXCLUDES CERTAIN SHARES*
[ ]
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW [9]
18.16%
12. TYPE OF REPORTING PERSON*
BK
Item 1(a). Name of Issuer:
Holly Corporation
Item 1(b). Address of issuer's principal executive offices:
100 Crescent Court
Suite 1600
Dallas, TX 75201-1880
Item 2(a). Name of person filing:
Brown Brothers Harriman & Co.
Item 2(b). Address of principal business office:
140 Broadway
New York, NY 10005
Item 2(c). Citizenship:
U.S.A.
Item 2(d). Title of class of securities:
Common
Item 2(e). CUSIP Number:
435758305
Item 3. If this statement is filed pursuant to Rules 13d-1(b) or 13d-
2(b), check whether the person filing is a:
(b) / / Bank as defined in Section 3(a)(6) of the Act.
(g) / X / Parent holding company, in accordance with Subsection 240
13d-1(b)ii)(G).
Item 4. Ownership:
(a) Amount beneficially owned:
5,412,976
(b) Percent of class:
18.16%
(c) Number of shares as to which such person has:
(i) Sole power to vote or to direct the vote
4,769,544
(ii) Shared power to vote or to direct the vote
643,432
(iii) Sole power to dispose or to direct the disposition of
4,769,544
(iv) Shared power to dispose or to direct the disposition of
643,432
Item 5. Ownership of 5 Percent or Less of a Class
N/A
Item 6. Ownership of More than 5 Percent on Behalf of Another Person
The reported shares are held in various fiduciary accounts,
and accordingly, dividends, and the proceeds of sales of
such shares, are payable to other persons, including such
accounts, the beneficiaries or settlors thereof or a
combination of such persons. In certain instances, other
persons (including beneficiaries and settlors) may be deemed
to have the power to direct receipt of dividends or the proceeds
of the sale of shares reported herein. To the best of the
undersigned's knowledge and belief, no one other person has such
an economic interest relating to more than 5% of the class
of reported shares.
Item 7. Identification and Classification of the Subsidiary
Which Acquired the Security Being Reported on By the Parent
Holding Company
The securities being reported are beneficially owned by certain
trusts of which Brown Brothers Harriman Trust Company of Texas
is the Trustee or Co-Trustee. Brown Brothers Harriman Trust
Company of Texas is a wholly owned subsidiary of Brown Brothers
Harriman Trust Company which is a wholly owned subsidiary of
Brown Brothers Harriman & Co. A copy of the agreement by and
between Brown Brothers Harriman & Co., Brown Brothers Harriman
Trust Company, and Brown Brothers Harriman Trust Company of Texas
authorizing the filing of one Schedule 13G on behalf of each
company is set forth below:
AGREEMENT
The undersigned hereby agree to file jointly the attached
statement or amendment on Schedule 13G and any further
amendments thereto pursuant to Regulation 13G promulgated
by the Securities and Exchange Commission under the Securities
Exchange Act of 1934. Such filing shall be made by Brown Brothers
Harriman & Co. on its behalf and on behalf of the parties hereto.
Item 8. Identification and Classification of Members of the Group
N/A
Item 9. Notice of Dissolution of Group
N/A
Item 10. Certification
By signing below, I certify that, to the best of my knowledge
and belief, the securities referred to above were acquired in
the ordinary course of business and were not acquired for the
purposes of and do not have the effect of changing or influencing
the control of the issuer of such securities and were not acquired
in connection with or as a participant in any transaction having
such purpose of effect.
Disclaimer of Beneficial Ownership
The undersigned expressly declare that the filing of this
Schedule 13G shall not be construed as an admission that
the undersigned are, for purpose of Sections 13(d) and 13(g)
of the Securities Exchange Act of 1934, the beneficial owners
of any securities covered by this Schedule 13G.
Signature
After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this
statement is true, complete and correct.
Dated: April 25, 2006
BROWN BROTHERS HARRIMAN & CO.
By: Howard M. Felson
Vice President
Brown Brothers Harriman Trust Company
By: Kurt Fuchs
Vice President
Brown Brothers Harriman Trust Company of Texas
By: David Sharman
Vice President