Apish--OIH holdings. I'd just looked this up the other day. I couldn't get a link to work, but you can find them on Amex.com under HOLDERS, "Product information", click on "oil service holders" (main part of page), then "holdings" on left side again. Here's the list.
STOCK TICKER SHARE AMOUNT
Baker Hughes Inc. BHI 21.00
BBJ Services Co. BJS 28.00
Cooper Cameron Corp. CAM 4.00
Diamond Offshore Drilling Inc. DO 11.00
Ensco International Inc. ESV 11.00
Global Santa Fe Corp. GSF 19.98
Grant Prideco Inc. GRP 9.00
Halliburton Co. HAL 22.00
Hanover Compressor Co. HC 5.00
Nabors Industries NBR 12.00
Noble Drilling Corp. NE 11.00
National-Oil Well Inc. NOV 7.00
Rowan Cos Inc. RDC 8.00
Smith International Inc. SII 16.00
Schlumberger Ltd. SLB 11.00
Tidewater Inc. TDW 5.00
Transocean Sedco Forex Inc. RIG 18.00
Weatherford International LTD WFT 9.00