All Tracked Companies as of September 30, 2008

Oil Service Companies

BHI  Baker Hughes
BJS BJ Services Co.
CAM Cooper Cameron Corp
CPX Complete Production
ESV Ensco International
FTI FMC Technologies 
HAL Halliburton
KBR KBR Inc.
NBR Nabors Industries
NE Noble Corp.
NOV National Oilwell Varco
PDE Pride International Co. 
RIG Transocean Inc. 
SII Smith International
SLB Schlumberger 
WFT Weatherford International
  
E&P Companies
 
APA Apache Corp.
APC Anadarko Petroleum
ARD Arena Resources
AREX Approach Resources
BEXP Brigham Exploration
CHK Chesapeake Corp.
CRZO Carrizo Oil & Gas Inc.
CXG CNX Gas
CXO Concho Resources
DVN Devon Energy Corp.
EOG EOG Resources Inc. 
GDP Goodrich Petroleum Corp 
GMXR GMX Resources Inc. 
HK Petrohawk Energy Corp. 
KWK  Quicksilver Resources Inc. 
ME  Mariner Energy 
NBL  Noble Energy 
NFX Newfield Exploration
OXY  Occidental Petroleum 
PLLL Parallel Petroleum
PXP Plains Exploration
REXX REX Energy
RRC  Range Resources 
SD  SandRidge Energy 
SGY Stone Energy
SWN Southwestern Energy
UPL Ultra Petroleum Corp.
XCO Exco Resources Inc.
XTO XTO Energy Inc.
  
Gas & Power Companies

CNL Cleco
DPM DCP Midstream Partners
EGN Energen Corp.
EP El Paso Corp.
EPB El Paso Pipelines Partners
EQT Equitable Resources
MDU MDU Resources
NFG National Fuel Gas 
OKE ONEOK
OKS ONEOK Partners
SEP Spectra Energy
SRE Sempra Energy 
STR  Questar
SUG Southern Union
WMB Williams
  
MLP Companies

BWP Boardwalk Pipeline Partners
CPNO Copano Energy
EEP Enbridge Energy Partners
NS NuStar Energy
PAA Plains All American Pipeline
RGNC Regency Energy Partners
WMZ Williams Pipeline Partners
WPZ Williams Partners