iShares U.S. Oil Equip & Services ETF (IEZ) Inception Date:,5/1/2006 Fund Holdings as of,5/17/2013,Holdings are subject to change. Total Net Assets ($000s),389214 Number of Securities,48 Stock,99.88% Cash,0.11% Other,0.01% 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",16.34,63579791.52,"XNYS","Oil & Gas",1.0,75.74,839448 406216101 ,US4062161017,2405302 ,HAL ,"HALLIBURTON CO",9.36,36433671.00,"XNYS","Oil & Gas",1.0,45.25,805164 637071101 ,US6370711011,2624486 ,NOV ,"NATIONAL OILWELL VARCO INC",6.97,27113688.91,"XNYS","Oil & Gas",1.0,68.53,395647 057224107 ,US0572241075,2072085 ,BHI ,"BAKER HUGHES INC",5.49,21375096.54,"XNYS","Oil & Gas",1.0,47.53,449718 --,CH0048265513,B3KFWW1 ,RIG ,"TRANSOCEAN LTD",5.13,19968947.70,"XNYS","Oil & Gas",1.0,54.03,369590 13342B105 ,US13342B1052,2222233 ,CAM ,"CAMERON INTERNATIONAL CORP",4.40,17130452.64,"XNYS","Oil & Gas",1.0,64.47,265712 --,GB00B4VLR192,B4VLR19 ,ESV ,"ENSCO PLC-CL A",4.15,16156886.90,"XNYS","Oil & Gas",1.0,62.15,259966 30249U101 ,US30249U1016,2763561 ,FTI ,"FMC TECHNOLOGIES INC",4.02,15648003.00,"XNYS","Oil & Gas",1.0,57.54,271950 --,CH0038838394,B5KL6S7 ,WFT ,"WEATHERFORD INTL LTD",3.46,13464073.21,"XNYS","Oil & Gas",1.0,14.27,943523 --,CH0033347318,B65Z9D7 ,NE ,"NOBLE CORP",3.26,12705721.42,"XNYS","Oil & Gas",1.0,40.66,312487 675232102 ,US6752321025,2655583 ,OII ,"OCEANEERING INTL INC",2.77,10764244.54,"XNYS","Oil & Gas",1.0,75.74,142121 423452101 ,US4234521015,2420101 ,HP ,"HELMERICH & PAYNE",2.34,9108369.27,"XNYS","Oil & Gas",1.0,65.39,139293 678026105 ,US6780261052,2724472 ,OIS ,"OIL STATES INTERNATIONAL INC",2.12,8257267.49,"XNYS","Oil & Gas",1.0,101.89,81041 25271C102 ,US25271C1027,2261021 ,DO ,"DIAMOND OFFSHORE DRILLING",1.87,7261720.00,"XNYS","Oil & Gas",1.0,72.40,100300 261608103 ,US2616081038,B0G0V77 ,DRC ,"DRESSER-RAND GROUP INC",1.86,7235570.04,"XNYS","Oil & Gas",1.0,64.76,111729 --,BMG6359F1032,2963372 ,NBR ,"NABORS INDUSTRIES LTD",1.79,6960425.14,"XNYS","Oil & Gas",1.0,16.67,417542 868157108 ,US8681571084,2806109 ,SPN ,"SUPERIOR ENERGY SERVICES INC",1.72,6695998.92,"XNYS","Oil & Gas",1.0,28.44,235443 --,GB00B6SLMV12,B840261 ,RDC ,"ROWAN COMPANIES PLC-A",1.68,6534706.50,"XNYS","Oil & Gas",1.0,35.70,183045 262037104 ,US2620371045,2116767 ,DRQ ,"DRIL-QUIP INC",1.39,5416120.96,"XNYS","Oil & Gas",1.0,92.92,58288 703481101 ,US7034811015,2672537 ,PTEN ,"PATTERSON-UTI ENERGY INC",1.33,5188492.08,"XNGS","Oil & Gas",1.0,22.92,226374 549764108 ,US5497641085,2537487 ,LUFK ,"LUFKIN INDUSTRIES INC",1.31,5083868.64,"XNGS","Oil & Gas",1.0,88.28,57588 050095108 ,US0500951084,2062440 ,ATW ,"ATWOOD OCEANICS INC",1.29,5006672.99,"XNYS","Oil & Gas",1.0,54.01,92699 886423102 ,US8864231027,2891859 ,TDW ,"TIDEWATER INC",1.25,4850599.60,"XNYS","Oil & Gas",1.0,57.68,84095 16115Q308 ,US16115Q3083,B19HNF4 ,GTLS ,"CHART INDUSTRIES INC",1.19,4634751.23,"XNMS","Oil & Gas",1.0,92.21,50263 42330P107 ,US42330P1075,2037062 ,HLX ,"HELIX ENERGY SOLUTIONS GROUP",1.10,4267731.00,"XNYS","Oil & Gas",1.0,25.50,167362 110394103 ,US1103941035,2656229 ,BRS ,"BRISTOW GROUP INC",1.07,4172596.96,"XNYS","Oil & Gas",1.0,66.64,62614 909218109 ,US9092181091,2925833 ,UNT ,"UNIT CORP",0.93,3612452.56,"XNYS","Oil & Gas",1.0,47.02,76828 580037109 ,PA5800371096,2550310 ,MDR ,"MCDERMOTT INTL INC",0.89,3473695.90,"XNYS","Oil & Gas",1.0,8.86,392065 30225X103 ,US30225X1037,B241SX1 ,EXH ,"EXTERRAN HOLDINGS INC",0.89,3464821.95,"XNYS","Oil & Gas",1.0,29.45,117651 440543106 ,US4405431069,B00G814 ,HOS ,"HORNBECK OFFSHORE SERVICES",0.83,3240174.90,"XNYS","Oil & Gas",1.0,52.97,61170 811904101 ,US8119041015,2797838 ,CKH ,"SEACOR HOLDINGS INC",0.73,2836132.60,"XNYS","Oil & Gas",1.0,77.98,36370 140781105 ,US1407811058,2238821 ,CRR ,"CARBO CERAMICS INC",0.63,2469607.78,"XNYS","Oil & Gas",1.0,69.83,35366 402629208 ,US4026292080,B62TH61 ,GLF ,"GULFMARK OFFSHORE INC-CL A",0.62,2423482.30,"XNYS","Oil & Gas",1.0,46.45,52174 427093109 ,US4270931094,B0J2NQ3 ,HERO ,"HERCULES OFFSHORE INC",0.59,2296414.77,"XNGS","Oil & Gas",1.0,7.17,320281 37364X109 ,US37364X1090,B89MJ94 ,GEOS ,"GEOSPACE TECHNOLOGIES CORP",0.55,2155139.80,"XNGS","Oil & Gas",1.0,87.70,24574 651718504 ,US6517185046,2636878 ,NR ,"NEWPARK RESOURCES INC",0.55,2148578.14,"XNYS","Oil & Gas",1.0,11.38,188803 492914106 ,US4929141061,2490795 ,KEG ,"KEY ENERGY SERVICES INC",0.47,1841538.24,"XNYS","Oil & Gas",1.0,6.21,296544 749660106 ,US7496601060,2719456 ,RES ,"RPC INC",0.46,1776155.34,"XNYS","Oil & Gas",1.0,13.29,133646 88162F105 ,US88162F1057,2884280 ,TTI ,"TETRA TECHNOLOGIES INC",0.45,1760673.60,"XNYS","Oil & Gas",1.0,10.08,174670 12467B304 ,US12467B3042,B4Z7Z53 ,CJES ,"C&J ENERGY SERVICES INC",0.45,1748030.72,"XNYS","Oil & Gas",1.0,19.06,91712 462044108 ,US4620441083,2460293 ,IO ,"ION GEOPHYSICAL CORP",0.42,1630036.80,"XNYS","Oil & Gas",1.0,6.28,259560 701081101 ,US7010811013,2671460 ,PKD ,"PARKER DRILLING CO",0.33,1284497.73,"XNYS","Oil & Gas",1.0,4.59,279847 26885G109 ,US26885G1094,B8KM2D8 ,ERA ,"ERA GROUP INC",0.33,1266185.20,"XNYS","Oil & Gas",1.0,24.92,50810 723664108 ,US7236641087,B68D808 ,PES ,"PIONEER ENERGY SERVICES CORP",0.30,1163432.27,"XNYS","Oil & Gas",1.0,7.81,148967 576853105 ,US5768531056,2572068 ,MTRX ,"MATRIX SERVICE CO",0.29,1129783.60,"XNGS","Oil & Gas",1.0,17.32,65230 88157K101 ,CA88157K1012,2237022 ,TESO ,"TESCO CORP",0.26,1023911.70,"XNGS","Oil & Gas",1.0,12.90,79373 06985P100 ,US06985P1003,B0H5CZ6 ,BAS ,"BASIC ENERGY SERVICES INC",0.25,969876.00,"XNYS","Oil & Gas",1.0,13.92,69675 980SNC002 ,--,--,--,"BLACKROCK FDS III",0.11,437496.95,"","S-T Securities",1.0,1.00,437497 *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.