Abraxas Petroleum Corp	Forest Oil Corporation	Petroleo Brasileiro SA (ADR)
Amerada Hess Corporation	Frontier Oil Corporation	Petroleo Brasileiro SA Cl A
AmeriGas Partners LP	FX Energy Inc	Petroleum Development Corporation
Anadarko Petroleum Corporation	Gasco Energy Inc	PetroQuest Energy Inc
Apache Corporation	Genesis Energy LP	Pioneer Drilling Company
Apco Argentina Inc	GeoGlobal Resources Inc	Pioneer Natural Resources
Arena Resources Inc	GeoResources Inc	Plains All American Pipeline
Ashland Inc	Giant Industries Inc	Plains Exploration & Production Company
Atlas America Inc	GlobalSantaFe Corp	Pogo Producing Company
Atlas Pipeline Partners LP	GMX Resources Inc	Precision Drilling Corporation (USA)
ATP Oil & Gas Corporation	Golar LNG Limited (USA)	Premcor Inc
Atwood Oceanics Inc	Goodrich Petroleum Corp	Pride International Inc
Baker Hughes Incorporated	Grant Prideco Inc	PrimeEnergy Corporation
Barnwell Industries Inc	Grey Wolf Inc	PrimeWest Energy Trust (USA)
Berry Petroleum Company	GulfMark Offshore Inc	Provident Energy Trust (USA)
BG Group plc (ADR)	Gulf Island Fabrication Inc	PYR Energy
Bill Barrett Corporation	Halliburton Company	Quicksilver Resources Inc
BJ Services Company	Harken Energy Corporation	Range Resources Corp
Blue Dolphin Energy Company	Harvest Natural Resources Inc	Remington Oil & Gas Corp
Bolt Technology Corp	Helmerich & Payne Inc	Repsol YPF SA (ADR)
Boots & Coots Intl Well	Holly Corporation	Resource America Inc
BP plc (ADR)	Holly Energy Partners LP	Rowan Companies Inc
BP Prudhoe Bay Royalty Trust	Hydril Company	Royale Energy Inc
Brigham Exploration Co	ICO Inc	Royal Dutch Petroleum Company (ADR)
Buckeye Partners LP	Imperial Oil Limited (USA)	RPC Inc
Burlington Resources Inc	Infinity Inc	Santos Limited (ADR)
Cabot Oil & Gas Corporation	Infrasource Services Inc	Sasol Limited (ADR)
Calcasieu Real Estate & Oil Co	InterOil Corporation (USA)	Schlumberger Limited
Callon Petroleum Company	Isramco Inc	Shell Transport & Trading (ADR)
Cal Dive International Inc	Ivanhoe Energy Inc (USA)	Smedvig ASA (ADR)
Canada Southern Petroleum (USA)	JED Oil Inc	Smedvig Asa B
Canadian Natural Resource (USA)	Kaneb Pipe Line Partners	Smith International Inc
Canadian Superior Energy (USA)	Kaneb Services LLC	Southwestern Energy Company
CanArgo Energy Corp	KCS Energy Inc	Spinnaker Exploration Company
Carrizo Oil & Gas Inc	Kerr-McGee Corporation	Statoil ASA (ADR)
Castle Energy Corp	Key Energy Services Inc	Stolt Offshore SA (ADR)
Cheniere Energy Inc	Kinder Morgan Energy Partners LP	Stone Energy Corporation
Chesapeake Energy Corporation	Lone Star Technologies	St Mary Land & Exploration Co
ChevronTexaco Corporation	Lufkin Industries Inc	Suncor Energy Inc (USA)
China Petroleum & Chemical Corp (ADR)	Magellan Midstream Partners	Sunoco Inc
Cimarex Energy Co	Magellan Petroleum Corp	Sunoco Logistics Partners LP
Clayton Williams Energy	Magnum Hunter Resources	Superior Energy Services Inc
CNOOC Limited (ADR)	Marathon Oil Corporation	Swift Energy Company
Compagnie Generale de Geophysique (ADR)	MarkWest Energy Partners LP	Syntroleum Corporation
Comstock Resources Inc	MarkWest Hydrocarbon Inc	Talisman Energy Inc (USA)
ConocoPhillips	Maverick Tube Corporation	TC Pipelines LP
Contango Oil & Gas Co	McDermott International	Tengasco Inc
Cooper Cameron Corporation	McMoRan Exploration Co	TEPPCO Partners LP
Copano Energy LLC	Meridian Resource Corp	Tesco Corporation (USA)
Core Laboratories NV	Mexco Energy Corporation	Tesoro Corporation
CREDO Petroleum Corporation	Mission Resources Corporation	Teton Petroleum Company
Crosstex Energy GP LP	Murphy Oil Corp	The Houston Exploration
Crosstex Energy Inc	Nabors Industries Ltd	Tipperary Corporation
Dawson Geophysical Co	NATCO Group Inc	TODCO
Delta Petroleum Corp	Natural Gas Services Group Inc	Torch Offshore Inc
Denbury Resources Inc	Newfield Exploration Co	Toreador Resources Corp
Devon Energy Corporation	Newpark Resources Inc	TOTAL SA (ADR)
Diamond Offshore Drilling Inc	Nexen Inc (USA)	TransGlobe Energy Corporation (USA)
Dorchester Minerals LP	NGAS Resources Inc	TransMontaigne Inc
Double Eagle Petroleum	Noble Corporation	Transocean Inc
Dril-Quip Inc	Noble Energy Inc	Tri-Valley Corporation
Dynamic Oil & Gas Inc (USA)	Norsk Hydro ASA (ADR)	Trico Marine Services
Dynegy Inc	Northern Border Partners LP	Ultra Petroleum Corp
Edge Petroleum Corp	OAO Tatneft (ADR)	United Heritage Corp
El Paso Corporation	Occidental Petroleum Corp	Unit Corporation
Enbridge Energy Management LLC	Oceaneering International	Unocal Corporation
Enbridge Energy Partners LP	Oil States International	VAALCO Energy Inc
Enbridge Inc (USA)	OMNI Energy Services Corp	Valero Energy Corp
EnCana Corporation (USA)	Pacific Energy Partners LP	Valero LP
Encore Acquisition Co	Panhandle Royalty Company	Varco International Inc
Endeavour International Corporation	Parallel Petroleum Corp	Veritas DGC Inc
Energy Partners Ltd	Parker Drilling Company	Vintage Petroleum Inc
EnerNorth Industries Inc	Patina Oil & Gas Corp	W-H Energy Services Inc
Eni SpA (ADR)	Patterson-UTI Energy Inc	Weatherford International LTD
Ensco International Incorporated	Pengrowth Energy Trust (USA)	Western Gas Resources Inc
Enterprise Products Partners	Penn Virginia Corporation	Whiting Petroleum Corporation
Enterra Energy Trust (USA)	Petro-Canada (USA)	Willbros Group Inc
EOG Resources Inc	Petrobras Energia Participaciones SA ADR	Williams Companies Inc
EON AG (ADR)	PetroChina Company Limited (ADR)	Wilshire Enterprises Inc
Exploration Company of Delaware Inc	Petrofund Energy Trust (USA)	XTO Energy Inc
Exxon Mobil Corporation	Petrohawk Energy Corporation	YPF Sociedad Anonima SA (ADR)
FMC Technologies Inc	PetroKazakhstan Inc (USA)