iShares U.S. Oil Equip & Services ETF (IEZ) Inception Date:,5/1/2006 Fund Holdings as of,4/30/2013,Holdings are subject to change. Total Net Assets ($000s),367120 Number of Securities,48 Stock,99.91% Cash,0.12% Other,-0.03% 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 806857108 ,AN8068571086,2779201 ,SLB ,"SCHLUMBERGER LTD",17.02,62480114.64,"XNYS","Oil & Gas",1.0,74.43,839448 406216101 ,US4062161017,2405302 ,HAL ,"HALLIBURTON CO",9.38,34436864.28,"XNYS","Oil & Gas",1.0,42.77,805164 637071101 ,US6370711011,2624486 ,NOV ,"NATIONAL OILWELL VARCO INC",7.03,25804097.34,"XNYS","Oil & Gas",1.0,65.22,395647 057224107 ,US0572241075,2072085 ,BHI ,"BAKER HUGHES INC",5.56,20412700.02,"XNYS","Oil & Gas",1.0,45.39,449718 --,CH0048265513,B3KFWW1 ,RIG ,"TRANSOCEAN LTD",5.18,19022797.30,"XNYS","Oil & Gas",1.0,51.47,369590 13342B105 ,US13342B1052,2222233 ,CAM ,"CAMERON INTERNATIONAL CORP",4.45,16354573.60,"XNYS","Oil & Gas",1.0,61.55,265712 --,GB00B4VLR192,B4VLR19 ,ESV ,"ENSCO PLC-CL A",4.08,14994838.88,"XNYS","Oil & Gas",1.0,57.68,259966 30249U101 ,US30249U1016,2763561 ,FTI ,"FMC TECHNOLOGIES INC",4.02,14766885.00,"XNYS","Oil & Gas",1.0,54.30,271950 --,CH0038838394,B5KL6S7 ,WFT ,"WEATHERFORD INTL LTD",3.29,12067659.17,"XNYS","Oil & Gas",1.0,12.79,943523 --,CH0033347318,B65Z9D7 ,NE ,"NOBLE CORP",3.19,11718262.50,"XNYS","Oil & Gas",1.0,37.50,312487 675232102 ,US6752321025,2655583 ,OII ,"OCEANEERING INTL INC",2.72,9972630.57,"XNYS","Oil & Gas",1.0,70.17,142121 423452101 ,US4234521015,2420101 ,HP ,"HELMERICH & PAYNE",2.22,8165355.66,"XNYS","Oil & Gas",1.0,58.62,139293 678026105 ,US6780261052,2724472 ,OIS ,"OIL STATES INTERNATIONAL INC",1.97,7241823.76,"XNYS","Oil & Gas",1.0,89.36,81041 25271C102 ,US25271C1027,2261021 ,DO ,"DIAMOND OFFSHORE DRILLING",1.89,6930730.00,"XNYS","Oil & Gas",1.0,69.10,100300 868157108 ,US8681571084,2806109 ,SPN ,"SUPERIOR ENERGY SERVICES INC",1.77,6495872.37,"XNYS","Oil & Gas",1.0,27.59,235443 261608103 ,US2616081038,B0G0V77 ,DRC ,"DRESSER-RAND GROUP INC",1.69,6213249.69,"XNYS","Oil & Gas",1.0,55.61,111729 --,BMG6359F1032,2963372 ,NBR ,"NABORS INDUSTRIES LTD",1.68,6175446.18,"XNYS","Oil & Gas",1.0,14.79,417542 --,GB00B6SLMV12,B840261 ,RDC ,"ROWAN COMPANIES PLC-A",1.62,5954453.85,"XNYS","Oil & Gas",1.0,32.53,183045 549764108 ,US5497641085,2537487 ,LUFK ,"LUFKIN INDUSTRIES INC",1.38,5084444.52,"XNGS","Oil & Gas",1.0,88.29,57588 262037104 ,US2620371045,2116767 ,DRQ ,"DRIL-QUIP INC",1.33,4879288.48,"XNYS","Oil & Gas",1.0,83.71,58288 703481101 ,US7034811015,2672537 ,PTEN ,"PATTERSON-UTI ENERGY INC",1.30,4774227.66,"XNGS","Oil & Gas",1.0,21.09,226374 050095108 ,US0500951084,2062440 ,ATW ,"ATWOOD OCEANICS INC",1.24,4546885.95,"XNYS","Oil & Gas",1.0,49.05,92699 886423102 ,US8864231027,2891859 ,TDW ,"TIDEWATER INC",1.20,4410782.75,"XNYS","Oil & Gas",1.0,52.45,84095 16115Q308 ,US16115Q3083,B19HNF4 ,GTLS ,"CHART INDUSTRIES INC",1.16,4262805.03,"XNMS","Oil & Gas",1.0,84.81,50263 580037109 ,PA5800371096,2550310 ,MDR ,"MCDERMOTT INTL INC",1.14,4187254.20,"XNYS","Oil & Gas",1.0,10.68,392065 110394103 ,US1103941035,2656229 ,BRS ,"BRISTOW GROUP INC",1.08,3957204.80,"XNYS","Oil & Gas",1.0,63.20,62614 42330P107 ,US42330P1075,2037062 ,HLX ,"HELIX ENERGY SOLUTIONS GROUP",1.05,3856020.48,"XNYS","Oil & Gas",1.0,23.04,167362 909218109 ,US9092181091,2925833 ,UNT ,"UNIT CORP",0.88,3229080.84,"XNYS","Oil & Gas",1.0,42.03,76828 30225X103 ,US30225X1037,B241SX1 ,EXH ,"EXTERRAN HOLDINGS INC",0.85,3108339.42,"XNYS","Oil & Gas",1.0,26.42,117651 440543106 ,US4405431069,B00G814 ,HOS ,"HORNBECK OFFSHORE SERVICES",0.75,2747756.40,"XNYS","Oil & Gas",1.0,44.92,61170 811904101 ,US8119041015,2797838 ,CKH ,"SEACOR HOLDINGS INC",0.71,2622640.70,"XNYS","Oil & Gas",1.0,72.11,36370 140781105 ,US1407811058,2238821 ,CRR ,"CARBO CERAMICS INC",0.68,2498607.90,"XNYS","Oil & Gas",1.0,70.65,35366 427093109 ,US4270931094,B0J2NQ3 ,HERO ,"HERCULES OFFSHORE INC",0.64,2360470.97,"XNGS","Oil & Gas",1.0,7.37,320281 402629208 ,US4026292080,B62TH61 ,GLF ,"GULFMARK OFFSHORE INC-CL A",0.59,2171481.88,"XNYS","Oil & Gas",1.0,41.62,52174 37364X109 ,US37364X1090,B89MJ94 ,GEOS ,"GEOSPACE TECHNOLOGIES CORP",0.56,2073308.38,"XNGS","Oil & Gas",1.0,84.37,24574 651718504 ,US6517185046,2636878 ,NR ,"NEWPARK RESOURCES INC",0.54,1982431.50,"XNYS","Oil & Gas",1.0,10.50,188803 12467B304 ,US12467B3042,B4Z7Z53 ,CJES ,"C&J ENERGY SERVICES INC",0.49,1814980.48,"XNYS","Oil & Gas",1.0,19.79,91712 749660106 ,US7496601060,2719456 ,RES ,"RPC INC",0.48,1769473.04,"XNYS","Oil & Gas",1.0,13.24,133646 492914106 ,US4929141061,2490795 ,KEG ,"KEY ENERGY SERVICES INC",0.48,1761471.36,"XNYS","Oil & Gas",1.0,5.94,296544 462044108 ,US4620441083,2460293 ,IO ,"ION GEOPHYSICAL CORP",0.44,1619654.40,"XNYS","Oil & Gas",1.0,6.24,259560 88162F105 ,US88162F1057,2884280 ,TTI ,"TETRA TECHNOLOGIES INC",0.43,1594737.10,"XNYS","Oil & Gas",1.0,9.13,174670 26885G109 ,US26885G1094,B8KM2D8 ,ERA ,"ERA GROUP INC",0.32,1161008.50,"XNYS","Oil & Gas",1.0,22.85,50810 701081101 ,US7010811013,2671460 ,PKD ,"PARKER DRILLING CO",0.31,1152969.64,"XNYS","Oil & Gas",1.0,4.12,279847 723664108 ,US7236641087,B68D808 ,PES ,"PIONEER ENERGY SERVICES CORP",0.29,1050217.35,"XNYS","Oil & Gas",1.0,7.05,148967 576853105 ,US5768531056,2572068 ,MTRX ,"MATRIX SERVICE CO",0.27,980406.90,"XNGS","Oil & Gas",1.0,15.03,65230 88157K101 ,CA88157K1012,2237022 ,TESO ,"TESCO CORP",0.26,968350.60,"XNGS","Oil & Gas",1.0,12.20,79373 06985P100 ,US06985P1003,B0H5CZ6 ,BAS ,"BASIC ENERGY SERVICES INC",0.26,956637.75,"XNYS","Oil & Gas",1.0,13.73,69675 980SNC002 ,--,--,--,"BLACKROCK FDS III",0.12,441286.66,"","S-T Securities",1.0,1.00,441287 *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.