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 NEW YORK 5. SOLE VOTING POWER 224,265 6. SHARED VOTING POWER 986,864 7. SOLE DISPOSITIVE POWER 224,265 8. SHARED DISPOSITIVE POWER 986,864 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,211,129 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW(9) EXCLUDES CERTAIN SHARES* [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW [9] 2.41% 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 DELAWARE, N.A. (formerly known as: Brown Brothers Harriman Trust Company of Texas) / 27-1673692 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE 5. SOLE VOTING POWER 224,265 6. SHARED VOTING POWER 986,864 7. SOLE DISPOSITIVE POWER 224,265 8. SHARED DISPOSITIVE POWER 986,864 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,211,129 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW(9) EXCLUDES CERTAIN SHARES* [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW [9] 2.41% 12. TYPE OF REPORTING PERSON* OO 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. on behalf of itself and: Brown Brothers Harriman Trust Company of Delaware, N.A. (formerly known as Brown Brothers Harriman Trust Company of Texas) Item 2(b). Address of principal business office: 140 Broadway New York, NY 10005 Item 2(c). Citizenship: Brown Brothers Harriman & Co., New York Brown Brothers Harriman Trust Company of Delaware, N.A., Delaware (formerly known as Brown Brothers Harriman Trust Company of Texas, Texas) Item 2(d). Title of class of securities: Common, Par Value $.01 Per Share 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) / / Parent holding company, in accordance with Subsection 240 13d-1(b)ii)(G). Item 4. Ownership: With respect to the beneficial ownership of the reporting persons, see Items 5 through 11 of the respective cover pages to this Schedule 13G, which are incorporated herein by reference. Item 5. Ownership of 5 Percent or Less of a Class This statement is being filed to report the fact that as of the date hereof the reporting person(s) has ceased to be the beneficial owner(s) of more than five percent of the class of securities. Item 6. Ownership of More than 5 Percent on Behalf of Another Person Not applicable. See Item 5. 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 Delaware, N.A. (formerly known as Brown Brothers Harriman of Texas, which merged into Brown Brothers Harriman Trust Company of Delaware, N.A. on December 30, 2009) is the Trustee or Co-Trustee. Brown Brothers Harriman Trust Company of Delaware, N.A. (formerly known as Brown Brothers Harriman Trust Company of Texas) is a wholly owned subsidiary of Brown Brothers Harriman & Co. A copy of the agreement by and among Brown Brothers Harriman & Co. and Brown Brothers Harriman Trust Company of Delaware, N.A. (formerly known as 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. Date: February 16, 2010 BROWN BROTHERS HARRIMAN & CO. By: /s/ Howard M. Felson Name: Howard M. Felson Title: Vice President BROWN BROTHERS HARRIMAN TRUST COMPANY OF DELAWARE, N.A. (formerly known as Brown Brothers Harriman Trust Company of Texas) By: /s/ Alison Brady Name: Alison Brady Title: Assistant Secretary Item 8. Identification and Classification of Members of the Group Not applicable Item 9. Notice of Dissolution of Group Not applicable 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. Date: February 16, 2010 BROWN BROTHERS HARRIMAN & CO. By: /s/ Howard M. Felson Name: Howard M. Felson Title: Vice President BROWN BROTHERS HARRIMAN TRUST COMPANY OF DELAWARE, N.A. (formerly known as Brown Brothers Harriman Trust Company of Texas) By: /s/ Alison Brady Name: Alison Brady Title: Assistant Secretary