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All Tracked Companies as of June 30, 2010
Oil Service Companies
| BAS |
Basic Energy Services Inc. |
| BHI |
Baker Hughes |
| CAM |
Cooper Cameron Corp |
| CPX |
Complete Production |
| CRR |
Carbo Ceramics Inc. |
| DO |
Diamond Offshore |
| ESV |
Ensco International |
| FTI |
FMC Technologies |
| GGS |
Global Geophysical |
| HAL |
Halliburton |
| HERO |
Hercules Offshore |
| HP |
Helmerich & Payne Inc. |
| KBR |
KBR Inc. |
| KEG |
Key Energy Services Inc. |
| LUFK |
Lufkin Industries Inc. |
| NBR |
Nabors Industries |
| NE |
Noble Corp. |
| NOV |
National Oilwell Varco |
| OII |
Oceaneering International Inc. |
| OIS |
Oil States International Inc. |
| PDE |
Pride International Co. |
| PTEN |
Patterson-UTY Energy Inc. |
| RDC |
Rowan Companies |
| RES |
RPC Inc. |
| RIG |
Transocean Inc. |
| SII |
Smith International |
| SLB |
Schlumberger |
| SPN |
Superior Energy Services Inc. |
| SWSI |
Superior Well Services Inc. |
| UDRL |
Union Drilling Inc. |
| WFT |
Weatherford International |
E&P Companies
| APA |
Apache Corp. |
| APC |
Anadarko Petroleum |
| ARD |
Arena Resources |
| AREX |
Approach Resources |
| BEXP |
Brigham Exploration |
| BRY |
Berry Petroleum Co. |
| CHK |
Chesapeake Corp. |
| CIE |
Cobalt International Energy Inc. |
| CLR |
Continental Resources Inc. Oklahoma |
| CRZO |
Carrizo Oil & Gas Inc. |
| COG |
Cabot Oil & 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 |
| PXD |
Pioneer Natural Resources |
| PXP |
Plains Exploration |
| QEP |
QEP Resources |
| REXX |
REX Energy |
| RRC |
Range Resources |
| SD |
SandRidge Energy |
| SGY |
Stone Energy |
| SWN |
Southwestern Energy |
| UPL |
Ultra Petroleum Corp. |
| WLL |
Whiting Petroleum Corp. |
| XCO |
Exco Resources Inc. |
Gas & Power Companies
| CPN |
Calpine Corporation |
| DYN |
Dynegy Inc. |
| MIR |
Mirant Corporation |
| NRG |
NRG Energy |
| RRI |
RRI Energy |
Gas & Power Companies (SUSPENDED)
| 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 |
| SE |
Spectra Energy Corp |
| SEP |
Spectra Energy Partners |
| SRE |
Sempra Energy |
| STR |
Questar |
| SUG |
Southern Union |
| WMB |
Williams |
MLP Companies (SUSPENDED)
| 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 |
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