UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2013 Check here if Amendment [ ]; Amendment Number: This Amendment (Check only one.): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Robertson Opportunity Capital, LLC Address: 8117 Preston Road West Tower, Suite 675 Dallas, Texas 75225 13F File Number: 028-11764 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: J. Brett Robertson Title: President Phone: 972.713.5001 Signature, Place, and Date of Signing: /s/ J. Brett Robertson Dallas, Texas/USA May 15, 2013 Report Type (Check only one.): [ X] 13F HOLDINGS REPORT. [ ] 13F NOTICE. [ ] 13F COMBINATION REPORT. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 35 Form 13F Information Table Value Total: $121,559 (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional managers with respect to which this report is filed, other than the manager filing this report. NONE FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- ADVANCED MICRO DEVICES INC COM 007903107 1097 430000 SH SOLE 430000 ARCH CAP GROUP LTD ORD G0450A105 9683 184200 SH SOLE 184200 BLOUNT INTL INC NEW COM 095180105 750 56024 SH SOLE 56024 CAPELLA EDUCATION COMPANY COM 139594105 3270 105000 SH SOLE 150000 CEVA INC COM 157210105 3588 230000 SH SOLE 230000 CHESAPEAKE ENERGY CORP COM 165167107 4543 222600 SH SOLE 222600 CITRIX SYS INC COM 177376100 2417 33500 SH SOLE 33500 CORELOGIC INC COM 21871D103 1129 43675 SH SOLE 43675 DELTIC TIMBER CORP COM 247850100 1368 19913 SH SOLE 19913 EXELIS INC COM 30162A108 436 40000 SH SOLE 40000 EXTERRAN HLDGS INC COM 30225X103 2789 103300 SH SOLE 103300 GENWORTH FINL INC COM CL A 37247D106 8800 880000 SH SOLE 880000 GREIF INC CL B 397624206 2160 38500 SH SOLE 38500 HOLLYFRONTIER CORP COM 436106108 3051 59300 SH SOLE 59300 ITT CORP NEW COM NEW 450911201 284 10000 SH SOLE 10000 LABORATORY CORP AMER HLDGS COM NEW 50540R409 3482 38600 SH SOLE 38600 LENDER PROCESSING SVCS INC COM 52602E102 5998 235600 SH SOLE 235600 LINCOLN ELEC HLDGS INC COM 533900106 2628 48514 SH SOLE 48514 MBIA INC COM 55262C100 2009 195571 SH SOLE 195571 MGIC INVT CORP WIS COM 552848103 4480 905000 SH SOLE 905000 NASDAQ OMX GROUP INC COM 631103108 7830 242400 SH SOLE 242400 PACCAR INC COM 693718108 1011 20000 SH SOLE 20000 PLUM CREEK TIMBER CO INC COM 729251108 2104 40300 SH SOLE 40300 PRIMO WTR CORP COM 74165N105 25 22986 SH SOLE 22986 RAYTHEON CO COM NEW 755111507 5397 91800 SH SOLE 91800 RENT A CTR INC NEW COM 76009N100 850 23000 SH SOLE 23000 RF MICRODEVICES INC COM 749941100 6043 1135900 SH SOLE 1135900 SONUS NETWORKS INC COM 835916107 1402 541200 SH SOLE 541200 SPDR S&P 500 ETF TR TR UNIT 78462F103 299 64400 SH SOLE 64400 SYNOPSYS INC COM 871607107 9140 254744 SH SOLE 254744 TEMPUR PEDIC INTL INC COM 88023U101 7445 150000 SH SOLE 150000 WEATHERFORD INTERNATIONAL LT REG SHS H27013103 3626 298667 SH SOLE 298667 WELLPOINT INC COM 94973V107 7789 117599 SH SOLE 117599 XILINX INC COM 983919101 3919 102680 SH SOLE 102680 XYLEM INC COM 98419M100 717 26000 SH SOLE 26000