iShares U.S. Oil & Gas Exploration & Production ETF (IEO) Inception Date:,5/1/2006 Fund Holdings as of,6/17/2013,Holdings are subject to change. Total Net Assets ($000s),352007 Number of Securities,60 Stock,99.80% Cash,0.07% Other,0.13% May include dividends booked but not yet received. CUSIP,ISIN,Sedol,Symbol,Name,% Net Assets,Market Value,Market,Sector,Exchange Rate,Market Price,Shares Held 674599105 ,US6745991058,2655408 ,OXY ,"OCCIDENTAL PETROLEUM CORP",13.03,45858712.41,"XNYS","Oil & Gas",1.0,92.61,495181 032511107 ,US0325111070,2032380 ,APC ,"ANADARKO PETROLEUM CORP",7.86,27677634.55,"XNYS","Oil & Gas",1.0,87.05,317951 718546104 ,US7185461040,B78C4Y8 ,PSX ,"PHILLIPS 66",7.21,25386105.78,"XNYS","Oil & Gas",1.0,64.26,395053 26875P101 ,US26875P1012,2318024 ,EOG ,"EOG RESOURCES INC",6.61,23266351.66,"XNYS","Oil & Gas",1.0,133.33,174502 037411105 ,US0374111054,2043962 ,APA ,"APACHE CORP",6.24,21974609.16,"XNYS","Oil & Gas",1.0,86.52,253983 56585A102 ,US56585A1025,B3K3L40 ,MPC ,"MARATHON PETROLEUM CORP",4.83,16987449.00,"XNYS","Oil & Gas",1.0,79.00,215031 655044105 ,US6550441058,2640761 ,NBL ,"NOBLE ENERGY INC",4.04,14229912.90,"XNYS","Oil & Gas",1.0,59.70,238357 25179M103 ,US25179M1036,2480677 ,DVN ,"DEVON ENERGY CORPORATION",3.91,13748185.00,"XNYS","Oil & Gas",1.0,55.00,249967 91913Y100 ,US91913Y1001,2041364 ,VLO ,"VALERO ENERGY CORP",3.90,13720253.25,"XNYS","Oil & Gas",1.0,37.95,361535 723787107 ,US7237871071,2690830 ,PXD ,"PIONEER NATURAL RESOURCES CO",3.84,13527539.20,"XNYS","Oil & Gas",1.0,152.32,88810 127097103 ,US1270971039,2162340 ,COG ,"CABOT OIL & GAS CORP",2.90,10206172.44,"XNYS","Oil & Gas",1.0,71.31,143124 845467109 ,US8454671095,2828619 ,SWN ,"SOUTHWESTERN ENERGY CO",2.55,8972512.50,"XNYS","Oil & Gas",1.0,37.50,239267 75281A109 ,US75281A1097,2523334 ,RRC ,"RANGE RESOURCES CORP",2.44,8598128.10,"XNYS","Oil & Gas",1.0,77.37,111130 26884L109 ,US26884L1098,2319414 ,EQT ,"EQT CORP",2.42,8523207.84,"XNYS","Oil & Gas",1.0,81.69,104336 165167107 ,US1651671075,2182779 ,CHK ,"CHESAPEAKE ENERGY CORP",2.15,7550856.24,"XNYS","Oil & Gas",1.0,21.04,358881 20605P101 ,US20605P1012,B1YWRK7 ,CXO ,"CONCHO RESOURCES INC",1.80,6346064.85,"XNYS","Oil & Gas",1.0,87.35,72651 436106108 ,US4361061082,B5VX1H6 ,HFC ,"HOLLYFRONTIER CORP",1.77,6243704.58,"XNYS","Oil & Gas",1.0,44.67,139774 881609101 ,US8816091016,2884569 ,TSO ,"TESORO CORP",1.58,5560978.08,"XNYS","Oil & Gas",1.0,57.61,96528 19075F106 ,US19075F1066,B4XH005 ,CIE ,"COBALT INTERNATIONAL ENERGY",1.52,5348259.48,"XNYS","Oil & Gas",1.0,26.36,202893 247916208 ,US2479162081,2418474 ,DNR ,"DENBURY RESOURCES INC",1.37,4815572.94,"XNYS","Oil & Gas",1.0,18.18,264883 16411R208 ,US16411R2085,2654364 ,LNG ,"CHENIERE ENERGY INC",1.37,4807524.96,"XASE","Oil & Gas",1.0,27.58,174312 171798101 ,US1717981013,2987521 ,XEC ,"CIMAREX ENERGY CO",1.28,4503988.56,"XNYS","Oil & Gas",1.0,72.84,61834 966387102 ,US9663871021,2168003 ,WLL ,"WHITING PETROLEUM CORP",1.17,4106651.83,"XNYS","Oil & Gas",1.0,48.83,84101 74733V100 ,US74733V1008,B60X657 ,QEP ,"QEP RESOURCES INC",1.08,3797660.16,"XNYS","Oil & Gas",1.0,29.61,128256 212015101 ,US2120151012,B1XGWS3 ,CLR ,"CONTINENTAL RESOURCES INC/OK",1.03,3616812.50,"XNYS","Oil & Gas",1.0,87.50,41335 78454L100 ,US78454L1008,2764188 ,SM ,"SM ENERGY CO",0.86,3042233.60,"XNYS","Oil & Gas",1.0,62.72,48505 29265N108 ,US29265N1081,2012672 ,EGN ,"ENERGEN CORP",0.83,2933185.59,"XNYS","Oil & Gas",1.0,54.87,53457 98212B103 ,US98212B1035,B40PCD9 ,WPX ,"WPX ENERGY INC",0.83,2930556.09,"XNYS","Oil & Gas",1.0,19.73,148533 402635304 ,US4026353049,2398684 ,GPOR ,"GULFPORT ENERGY CORP",0.73,2556497.50,"XNGS","Oil & Gas",1.0,50.30,50825 903914109 ,CA9039141093,2714440 ,UPL ,"ULTRA PETROLEUM CORP",0.71,2493266.00,"XNYS","Oil & Gas",1.0,21.80,114370 651290108 ,US6512901082,2635079 ,NFX ,"NEWFIELD EXPLORATION CO",0.66,2309812.83,"XNYS","Oil & Gas",1.0,23.01,100383 674215108 ,US6742151086,B64R5J2 ,OAS ,"OASIS PETROLEUM INC",0.63,2212957.80,"XNYS","Oil & Gas",1.0,41.64,53145 777779307 ,US7777793073,B0YV6N3 ,ROSE ,"ROSETTA RESOURCES INC",0.60,2113472.76,"XNGS","Oil & Gas",1.0,47.22,44758 50015Q100 ,CA50015Q1000,B06MB40 ,KOG ,"KODIAK OIL & GAS CORP",0.51,1794369.36,"XNYS","Oil & Gas",1.0,9.03,198712 87612G101 ,US87612G1013,B55PZY3 ,TRGP ,"TARGA RESOURCES CORP",0.42,1492465.26,"XNYS","Oil & Gas",1.0,67.21,22206 085789105 ,US0857891057,2094227 ,BRY ,"BERRY PETROLEUM CO-CLASS A",0.41,1444443.76,"XNYS","Oil & Gas",1.0,42.16,34261 80007P307 ,US80007P3073,B28M896 ,SD ,"SANDRIDGE ENERGY INC",0.38,1337562.51,"XNYS","Oil & Gas",1.0,5.03,265917 69327R101 ,US69327R1014,B89M5F2 ,PDCE ,"PDC ENERGY INC",0.36,1264347.78,"XNGS","Oil & Gas",1.0,53.77,23514 959319104 ,US9593191045,B0WHXR6 ,WNR ,"WESTERN REFINING INC",0.35,1233215.16,"XNYS","Oil & Gas",1.0,30.18,40862 246647101 ,US2466471016,B142DK9 ,DK ,"DELEK US HOLDINGS INC",0.26,927726.80,"XNYS","Oil & Gas",1.0,31.85,29128 861642106 ,US8616421066,2850281 ,SGY ,"STONE ENERGY CORP",0.26,924935.58,"XNYS","Oil & Gas",1.0,23.62,39159 269279402 ,US2692794025,B0YBGD3 ,XCO ,"EXCO RESOURCES INC",0.26,905960.65,"XNYS","Oil & Gas",1.0,7.85,115409 06846N104 ,US06846N1046,B04M3T1 ,BBG ,"BILL BARRETT CORP",0.25,877806.27,"XNYS","Oil & Gas",1.0,22.77,38551 26883D108 ,US26883D1081,B83L9Z3 ,EPL ,"EPL OIL & GAS INC",0.24,829522.87,"XNYS","Oil & Gas",1.0,29.81,27827 144577103 ,US1445771033,2092801 ,CRZO ,"CARRIZO OIL & GAS INC",0.24,827610.00,"XNGS","Oil & Gas",1.0,28.15,29400 097793103 ,US0977931031,B71B3K1 ,BCEI ,"BONANZA CREEK ENERGY INC",0.20,704769.24,"XNYS","Oil & Gas",1.0,37.66,18714 665531109 ,US6655311099,B0WRP81 ,NOG ,"NORTHERN OIL AND GAS INC",0.19,663276.95,"XASE","Oil & Gas",1.0,13.93,47615 03834A103 ,US03834A1034,B28RSK2 ,AREX ,"APPROACH RESOURCES INC",0.19,661881.99,"XNGS","Oil & Gas",1.0,24.43,27093 12662P108 ,US12662P1084,B23PS12 ,CVI ,"CVR ENERGY INC",0.19,652803.67,"XNYS","Oil & Gas",1.0,55.01,11867 205768203 ,US2057682039,2213572 ,CRK ,"COMSTOCK RESOURCES INC",0.18,623859.99,"XNYS","Oil & Gas",1.0,17.03,36633 761565100 ,US7615651004,B23K5J4 ,REXX ,"REX ENERGY CORP",0.17,600223.55,"XNGS","Oil & Gas",1.0,17.65,34007 55973B102 ,US55973B1026,2850979 ,MHR ,"MAGNUM HUNTER RESOURCES CORP",0.14,497799.36,"XNYS","Oil & Gas",1.0,3.81,130656 40537Q209 ,US40537Q2093,B7L26X8 ,HK ,"HALCON RESOURCES CORP",0.14,495478.20,"XNYS","Oil & Gas",1.0,5.70,86926 870738101 ,US8707381013,2867430 ,SFY ,"SWIFT ENERGY CO",0.14,476555.13,"XNYS","Oil & Gas",1.0,13.47,35379 69318G106 ,US69318G1067,B7F4TJ7 ,PBF ,"PBF ENERGY INC",0.13,470925.00,"XNYS","Oil & Gas",1.0,26.25,17940 76116A108 ,US76116A1088,B4PVR71 ,REN ,"RESOLUTE ENERGY CORP",0.12,428804.48,"XNYS","Oil & Gas",1.0,8.32,51539 92922P106 ,US92922P1066,B01Z7M4 ,WTI ,"W&T OFFSHORE INC",0.12,425870.92,"XNYS","Oil & Gas",1.0,14.78,28814 346091705 ,US3460917053,2712121 ,FST ,"FOREST OIL CORP",0.12,423212.65,"XNYS","Oil & Gas",1.0,4.37,96845 21075N204 ,US21075N2045,2752945 ,MCF ,"CONTANGO OIL & GAS",0.10,362463.64,"XASE","Oil & Gas",1.0,34.36,10549 980SNC002 ,--,--,--,"BLACKROCK FDS III",0.07,234713.06,"","S-T Securities",1.0,1.00,234713 *Securities primarily traded in the U.S. market use CUSIP identifiers. Securities primarily traded abroad use a 6-digit SEDOL(tm) with a trailing check digit and a "99" at the beginning for internal coding purposes. If a SEDOL(tm) is unavailable Please note: Total allocation percentages may not equal 100% due to rounding or omission of holdings of less than 1%. Information on certain fund holdings of less than 1% may not be widely available and may not be included in this list. SEDOL(tm) is a trademark of the London Stock Exchange plc and used under license.