Symbol Grade Name Industry
AAV Grade f Advantage Oil & Gas Ltd Oil & Gas Exploration and Production
AE Grade b Adams Resources & Energy, Inc. Petroleum Product Wholesale
AHGP Grade d Alliance Holdings GP, L.P. - Coal
ALDW Grade a Alon USA Partners, LP Oil & Gas Refining and Marketing
AM Grade c Antero Midstream Partners LP Natural Gas Pipeline
AMGP Grade c Antero Midstream GP LP Oil Related Services and Equipment
AMID Grade c American Midstream Partners, LP Oil & Gas Refining and Marketing
AMRC Grade b Ameresco, Inc. Renewable Energy Services
AMTX Grade f Aemetis, Inc Ethanol Fuels
ANDV Grade a Andeavor Oil & Gas Refining and Marketing
ANDX Grade c Andeavor Logistics LP Oil & Gas Transportation Services
ANW Grade d Aegean Marine Petroleum Network Inc. Oil & Gas Refining and Marketing
APA Grade f Apache Corporation Oil & Gas Exploration and Production
APC Grade d Anadarko Petroleum Corporation Oil & Gas Exploration and Production
APLP Grade d Archrock Partners, L.P. Oil Related Services and Equipment
APU Grade b AmeriGas Partners, L.P. Oil & Gas Refining and Marketing
AR Grade f Antero Resources Corporation Oil & Gas Exploration and Production
ARCX Grade a Arc Logistic Partners LP Oil & Gas Refining and Marketing
AREX Grade c Approach Resources Inc. Oil & Gas Exploration and Production
ARLP Grade d Alliance Resource Partners, L.P. - Coal
AROC Grade f Archrock, Inc. Oil Related Services and Equipment
AXAS Grade b Abraxas Petroleum Corporation Oil & Gas Exploration and Production
BBG Grade c Bill Barrett Corporation Oil & Gas Exploration and Production
BCEI Grade f Bonanza Creek Energy, Inc. Oil Exploration & Production - Onshore
BHGE Grade d Baker Hughes, a GE company Oil Related Services and Equipment
BKEP Grade f Blueknight Energy Partners L.P., L.L.C. Oil & Gas Transportation Services
BLDP Grade d Ballard Power Systems, Inc. Renewable Energy Equipment & Services
BP Grade a BP p.l.c. Oil & Gas Refining and Marketing
BPL Grade d Buckeye Partners L.P. Oil & Gas Transportation Services
BPMP Grade d BP Midstream Partners LP Oil & Gas Transportation Services
BPT Grade c BP Prudhoe Bay Royalty Trust Petroleum Refining
BRN Grade c Barnwell Industries, Inc. Oil & Gas Exploration and Production
BRS Grade c Bristow Group Inc. Oil Related Services and Equipment
BSM Grade a Black Stone Minerals, L.P. Oil & Gas Exploration and Production
BTE Grade c Baytex Energy Corp Oil & Gas Exploration and Production
BWEN Grade f Broadwind Energy, Inc. Wind Systems & Equipment
BWP Grade d Boardwalk Pipeline Partners LP Natural Gas Pipeline
BXE Grade f Bellatrix Exploration Oil & Gas Exploration and Production
CAPL Grade f CrossAmerica Partners LP Petroleum Product Wholesale
CCJ Grade b Cameco Corporation Uranium
CCLP Grade d CSI Compressco LP Oil Related Services and Equipment
CCR Grade c CONSOL Coal Resources LP Coal
CDEV Grade c Centennial Resource Development, Inc. Integrated Oil & Gas
CEI Grade f Camber Energy, Inc. Oil Exploration & Production - Onshore
CELP Grade f Cypress Energy Partners, L.P. Oil Related Services
CEO Grade a CNOOC Limited Oil & Gas Exploration and Production
CEQP Grade b Crestwood Equity Partners LP Oil & Gas Refining and Marketing
CGG Grade f CGG Oil Related Services
CHK Grade f Chesapeake Energy Corporation Oil & Gas Exploration and Production
CHKR Grade f Chesapeake Granite Wash Trust Oil & Gas Exploration and Production
CHNR Grade b China Natural Resources, Inc. Coal
CIE Grade f Cobalt International Energy, Inc. Oil Exploration & Production - Offshore
CIR Grade f CIRCOR International, Inc. Oil Related Equipment
CKH Grade d SEACOR Holdings Inc. Oil Related Services
CKX Grade f CKX Lands, Inc. Oil & Gas Exploration and Production
CLB Grade c Core Laboratories N.V. Oil Related Services and Equipment
CLD Grade b Cloud Peak Energy Inc Coal
CLMT Grade d Calumet Specialty Products Partners, L.P. Petroleum Refining
CLNE Grade f Clean Energy Fuels Corp. Oil & Gas Refining and Marketing
CLR Grade b Continental Resources, Inc. Oil & Gas Exploration and Production
CNNX Grade c Cone Midstream Partners LP Natural Gas Pipeline
CNQ Grade b Canadian Natural Resources Limited Oil & Gas Exploration and Production
CNX Grade d CONSOL Energy Inc. Coal
COG Grade b Cabot Oil & Gas Corporation Oil & Gas Exploration and Production
COP Grade b ConocoPhillips Oil & Gas Exploration and Production
CPE Grade d Callon Petroleum Company Oil & Gas Exploration and Production
CQH Grade a Cheniere Energy Partners LP Holdings, LLC LNG Transportation & Storage
CQP Grade c Cheniere Energy Partners, LP Oil & Gas Transportation Services
CRC Grade c California Resources Corporation Oil & Gas Exploration and Production
CRK Grade b Comstock Resources, Inc. Oil & Gas Exploration and Production
CRR Grade b Carbo Ceramics, Inc. Oil Related Services and Equipment
CRZO Grade c Carrizo Oil & Gas, Inc. Oil & Gas Exploration and Production
CSIQ Grade b Canadian Solar Inc. Photovoltaic Solar Systems & Equipment
CVE Grade f Cenovus Energy Inc Oil & Gas Refining and Marketing
CVI Grade a CVR Energy Inc. Petroleum Refining
CVRR Grade b CVR Refining, LP Oil & Gas Refining and Marketing
CVX Grade a Chevron Corporation Petroleum Refining
CXO Grade b Concho Resources Inc. Oil & Gas Exploration and Production
CZZ Grade b Cosan Limited Oil & Gas Refining and Marketing
DCP Grade b DCP Midstream, LP Natural Gas Pipeline
DHT Grade d DHT Holdings, Inc. Sea-Borne Tankers
DK Grade a Delek US Holdings, Inc. Petroleum Refining
DKL Grade b Delek Logistics Partners, L.P. Oil & Gas Transportation Services
DLNG Grade f Dynagas LNG Partners LP LNG Transportation & Storage
DM Grade c Dominion Midstream Partners, LP LNG Transportation & Storage
DNN Grade b Denison Mines Corp Uranium Mining
DNR Grade c Denbury Resources Inc. Oil & Gas Exploration and Production
DO Grade b Diamond Offshore Drilling, Inc. Oil & Gas Drilling
DQ Grade b Daqo New Energy Corp. Photovoltaic Solar Systems & Equipment
DRQ Grade c Dril-Quip, Inc. Oil Related Equipment
DVN Grade b Devon Energy Corporation Oil & Gas Exploration and Production
DWSN Grade c Dawson Geophysical Company Oil Related - Surveying & Mapping Services
E Grade c ENI S.p.A. Integrated Oil & Gas
EC Grade a Ecopetrol S.A. Integrated Oil & Gas
ECA Grade c Encana Corporation Oil & Gas Exploration and Production
ECR Grade f Eclipse Resources Corporation Oil & Gas Exploration and Production
ECT Grade d ECA Marcellus Trust I Oil & Gas Exploration and Production
EEP Grade d Enbridge Energy, L.P. Class A Oil & Gas Transportation Services
EEQ Grade f Enbridge Energy Management LLC Oil & Gas Transportation Services
EGN Grade b Energen Corporation Oil & Gas Exploration and Production
EGY Grade d Vaalco Energy Inc Oil & Gas Exploration and Production
EMES Grade f Emerge Energy Services LP Oil Related Services and Equipment
ENB Grade c Enbridge Inc Oil & Gas Transportation Services
ENBL Grade d Enable Midstream Partners, LP Oil & Gas Transportation Services
ENLC Grade c EnLink Midstream, LLC Oil & Gas Transportation Services
ENLK Grade c EnLink Midstream Partners, LP Oil & Gas Transportation Services
ENPH Grade c Enphase Energy, Inc. Photovoltaic Solar Systems & Equipment
ENRJ Grade f EnerJex Resources, Inc. Oil Exploration & Production - Onshore
ENSV Grade b Enservco Corporation Oil Related Services and Equipment
EOG Grade b EOG Resources, Inc. Oil & Gas Exploration and Production
EPD Grade c Enterprise Products Partners L.P. Oil & Gas Transportation Services
EPE Grade f EP Energy Corporation Oil & Gas Exploration and Production
EPM Grade f Evolution Petroleum Corporation, Inc. Oil Exploration & Production - Onshore
EQGP Grade d EQT GP Holdings, LP Oil & Gas Exploration and Production
EQM Grade c EQT Midstream Partners, LP Oil & Gas Transportation Services
EQT Grade f EQT Corporation Oil & Gas Exploration and Production
ERF Grade d Enerplus Corporation Oil & Gas Exploration and Production
ERN Grade b Erin Energy Corp. Oil & Gas Exploration and Production
ESES Grade d Eco-Stim Energy Solutions, Inc. Oil Related Services and Equipment
ESTE Grade c Earthstone Energy, Inc. Oil & Gas Exploration and Production
ESV Grade c Ensco plc Oil & Gas Drilling
ETE Grade d Energy Transfer Equity, L.P. Natural Gas Pipeline
ETP Grade f Energy Transfer Partners, L.P. Oil & Gas Transportation Services
EVA Grade d Enviva Partners, LP Biomass & Biogas Fuels
EVEP Grade d EV Energy Partners, L.P. Oil & Gas Exploration and Production
EXTN Grade d Exterran Corporation Oil Related Services and Equipment
EXXI Grade f Energy XXI Gulf Coast, Inc. Oil & Gas Exploration and Production
FANG Grade a Diamondback Energy, Inc. Oil & Gas Exploration and Production
FCEL Grade c FuelCell Energy, Inc. Renewable Energy Equipment & Services
FELP Grade d Foresight Energy LP Coal
FET Grade c Forum Energy Technologies, Inc. Oil Related Services and Equipment
FF Grade d FutureFuel Corp. Biodiesel
FGP Grade f Ferrellgas Partners, L.P. Oil Related Services and Equipment
FI Grade f Frank's International N.V. Oil Related Services and Equipment
FMSA Grade c FMSA Holdings Inc. Oil Related Services and Equipment
FPP Grade f FieldPoint Petroleum Corporation Oil & Gas Exploration and Production
FRAC Grade c Keane Group, Inc. Oil Related Services
FRO Grade f Frontline Ltd. Oil & Gas Transportation Services
FSLR Grade b First Solar, Inc. Photovoltaic Solar Systems & Equipment
FTK Grade f Flotek Industries, Inc. Oil Related Services and Equipment
GBR Grade d New Concept Energy, Inc Oil & Gas Exploration and Production
GEL Grade d Genesis Energy, L.P. Oil & Gas Transportation Services
GEOS Grade f Geospace Technologies Corporation Oil Related Services and Equipment
GEVO Grade f Gevo, Inc. Renewable Fuels
GIFI Grade d Gulf Island Fabrication, Inc. Oil Related Services and Equipment
GLNG Grade b Golar LNG Limited LNG Transportation & Storage
GLOG Grade a GasLog Ltd. LNG Transportation & Storage
GLOP Grade d GasLog Partners LP LNG Transportation & Storage
GLP Grade f Global Partners LP Global Partners LP Petroleum Product Wholesale
GMLP Grade c Golar LNG Partners LP LNG Transportation & Storage
GNRT Grade f Gener8 Maritime, Inc. Sea-Borne Tankers
GPOR Grade f Gulfport Energy Corporation Oil & Gas Exploration and Production
GPP Grade d Green Plains Partners LP Renewable Fuels
GPRE Grade d Green Plains Renewable Energy, Inc. Ethanol Fuels
HAL Grade b Halliburton Company Oil Related Services and Equipment
HEP Grade b Holly Energy Partners, L.P. Oil Pipeline
HES Grade c Hess Corporation Oil & Gas Refining and Marketing
HESM Grade b Hess Midstream Partners LP LNG Transportation & Storage
HFC Grade a HollyFrontier Corporation Petroleum Refining
HGT Grade f Hugoton Royalty Trust Oil & Gas Exploration and Production
HLX Grade d Helix Energy Solutions Group, Inc. Oil Related Services and Equipment
HMLP Grade f Hoegh LNG Partners LP Sea-Borne Tankers
HNRG Grade c Hallador Energy Company Coal
HP Grade b Helmerich & Payne, Inc. Oil & Gas Drilling
HQCL Grade f Hanwha Q CELLS Co., Ltd. Renewable Energy Equipment & Services
HUSA Grade f Houston American Energy Corporation Oil & Gas Exploration and Production
IMO Grade d Imperial Oil Limited Oil & Gas Refining and Marketing
INT Grade f World Fuel Services Corporation Petroleum Product Wholesale
IO Grade b Ion Geophysical Corporation Oil Related Services and Equipment
IPWR Grade f Ideal Power Inc. Renewable Energy Equipment & Services
ISRL Grade d Isramco, Inc. Oil & Gas Exploration and Production
JAG Grade b Jagged Peak Energy Inc. Unconventional Oil & Gas Drilling
JASO Grade d JA Solar Holdings, Co., Ltd. Renewable Energy Equipment & Services
JKS Grade c JinkoSolar Holding Company Limited Photovoltaic Solar Systems & Equipment
JONE Grade f Jones Energy, Inc. Oil & Gas Exploration and Production
KMI Grade d Kinder Morgan, Inc. Oil & Gas Transportation Services
KNOP Grade d KNOT Offshore Partners LP Sea-Borne Tankers
KOS Grade f Kosmos Energy Ltd. Oil & Gas Exploration and Production
KRP Grade d Kimbell Royalty Partners Integrated Oil & Gas
LGCY Grade f Legacy Reserves LP Oil & Gas Exploration and Production
LGCYO Grade f Legacy Reserves LP - 8.00% Series B Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units Oil & Gas Exploration and Production
LGCYP Grade f Legacy Reserves LP - 8% Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units Oil & Gas Exploration and Production
LLEX Grade f Lilis Energy, Inc. Oil & Gas Exploration and Production
LNG Grade b Cheniere Energy, Inc. LNG Transportation & Storage
LPG Grade d Dorian LPG Ltd. Sea-Borne Tankers
LPI Grade d Laredo Petroleum Holdings, Inc. Oil & Gas Exploration and Production
MCEP Grade c Mid-Con Energy Partners, LP Oil & Gas Exploration and Production
MCF Grade f Contango Oil & Gas Company Oil & Gas Exploration and Production
MDR Grade b McDermott International, Inc. Oil Related Services and Equipment
MIND Grade c Mitcham Industries, Inc. Oil Related Services and Equipment
MMP Grade c Magellan Midstream Partners L.P. Limited Partnership Oil & Gas Transportation Services
MNGA Grade f MagneGas Corporation] Hydrogen Fuel
MPC Grade a Marathon Petroleum Corporation Oil & Gas Refining and Marketing
MPLX Grade a MPLX LP Oil & Gas Transportation Services
MRO Grade b Marathon Oil Corporation Oil & Gas Exploration and Production
MTDR Grade b Matador Resources Company Oil & Gas Exploration and Production
MTR Grade c Mesa Royalty Trust Oil & Gas Exploration and Production
MTRX Grade c Matrix Service Company Oil Related Services and Equipment
MUR Grade b Murphy Oil Corporation Oil & Gas Exploration and Production
MUSA Grade b Murphy USA Inc. Gasoline stations
MVO Grade a MV Oil Trust Units of Beneficial Interests Oil & Gas Exploration and Production
MXC Grade d Mexco Energy Corporation Oil & Gas Exploration and Production
NAT Grade f Nordic American Tankers Limited Sea-Borne Tankers
NBL Grade d Noble Energy Inc. Oil & Gas Exploration and Production
NBLX Grade c Noble Midstream Partners LP Oil & Gas Transportation Services
NBR Grade f Nabors Industries Ltd. Oil & Gas Drilling
NCSM Grade d NCS Multistage Holdings, Inc. Oil Related Services and Equipment
NDRO Grade d Enduro Royalty Trust Trust Units Oil & Gas Exploration and Production
NFX Grade d Newfield Exploration Company Oil & Gas Exploration and Production
NGL Grade b NGL Energy Partners LP Oil & Gas Refining and Marketing
NGS Grade f Natural Gas Services Group, Inc. Oil Related Equipment
NOA Grade c North American Energy Partners, Inc. Oil Related Services
NOG Grade c Northern Oil and Gas, Inc. Oil & Gas Exploration and Production
NOV Grade d National Oilwell Varco, Inc. Oil Related Services and Equipment
NR Grade d Newpark Resources, Inc. Oil Related Services and Equipment
NRP Grade f Natural Resource Partners LP Limited Partnership Coal
NRT Grade b North European Oil Royality Trust Oil & Gas Exploration and Production
NS Grade d Nustar Energy L.P. Oil Pipeline
NSH Grade f Nustar GP Holdings, LLC Units Oil Pipeline
NVGS Grade d Navigator Holdings Ltd. LNG Transportation & Storage
OAS Grade d Oasis Petroleum Inc. Unconventional Oil & Gas Production
OBE Grade c Obsidian Energy Ltd. Oil Exploration & Production - Onshore
OII Grade d Oceaneering International, Inc. Oil Related Services and Equipment
OIS Grade d Oil States International, Inc. Oil Related Equipment
OKE Grade c ONEOK, Inc. Oil & Gas Transportation Services
OMP Grade a Oasis Midstream Partners LP Oil Related Services and Equipment
OXY Grade a Occidental Petroleum Corporation Oil & Gas Exploration and Production
PAA Grade d Plains All American Pipeline, L.P. Oil & Gas Transportation Services
PAGP Grade d Plains Group Holdings, L.P. Oil & Gas Transportation Services
PBA Grade a Pembina Pipeline Corp. Oil & Gas Transportation Services
PBF Grade b PBF Energy Inc. Oil & Gas Refining and Marketing
PBFX Grade b PBF Logistics LP Oil & Gas Transportation Services
PBR Grade c Petroleo Brasileiro S.A.- Petrobras Integrated Oil & Gas
PBR.A Grade c Petroleo Brasileiro S.A.- Petrobras Integrated Oil & Gas
PDCE Grade d PDC Energy, Inc. Oil & Gas Exploration and Production
PDS Grade d Precision Drilling Corporation Oil & Gas Drilling
PE Grade c Parsley Energy, Inc. Oil & Gas Exploration and Production
PEIX Grade f Pacific Ethanol, Inc. Ethanol Fuels
PER Grade f SandRidge Permian Trust Oil & Gas Exploration and Production
PES Grade c Pioneer Energy Services Corp. Oil & Gas Drilling
PFIE Grade d Profire Energy, Inc. Oil Related Services
PGH Grade f Pengrowth Energy Corporation Oil & Gas Exploration and Production
PHII Grade c PHI, Inc. - Voting Oil Related Services and Equipment
PHIIK Grade c PHI, Inc. - Non-Voting Oil Related Services and Equipment
PHX Grade d Panhandle Oil and Gas Inc Oil & Gas Exploration and Production
PKD Grade f Parker Drilling Company Oil & Gas Drilling
PLUG Grade d Plug Power, Inc. Stationary Fuel Cells
PNRG Grade c PrimeEnergy Corporation Oil & Gas Exploration and Production
PQ Grade f Petroquest Energy Inc Oil & Gas Exploration and Production
PSX Grade a Phillips 66 Oil & Gas Refining and Marketing
PSXP Grade c Phillips 66 Partners LP Oil & Gas Transportation Services
PTEN Grade b Patterson-UTI Energy, Inc. Oil & Gas Drilling
PTR Grade b PetroChina Company Limited Integrated Oil & Gas
PUMP Grade a ProPetro Holding Corp. Oil Related Services and Equipment
PXD Grade c Pioneer Natural Resources Company Oil & Gas Exploration and Production
PZE Grade d Petrobras Argentina S.A. ADS Integrated Oil & Gas
QEP Grade c QEP Resources, Inc. Integrated Oil & Gas
RCON Grade d Recon Technology, Ltd. Oil Related Services and Equipment
RDC Grade b Rowan Companies plc Oil & Gas Drilling
RDS.A Grade a Royal Dutch Shell PLC Class A Integrated Oil & Gas
RDS.B Grade a Royal Dutch Shell PLC Royal Dutch Shell PLC Class B Integrated Oil & Gas
REGI Grade d Renewable Energy Group, Inc. Biomass & Biogas Fuels
REN Grade f Resolute Energy Corporation Oil Exploration & Production - Onshore
RES Grade b RPC, Inc. Oil Related Services and Equipment
REX Grade f REX American Resources Corporation Ethanol Fuels
REXX Grade f Rex Energy Corporation Oil & Gas Exploration and Production
RIG Grade d Transocean Ltd (Switzerland) Oil & Gas Drilling
RMP Grade c Rice Midstream Partners LP LNG Transportation & Storage
RNET Grade f RigNet, Inc. Oil Related Services
RNGR Grade d Ranger Energy Services, Inc. Oil Related Services and Equipment
ROSE Grade f Rosehill Resources Inc. Oil & Gas Exploration and Production
ROYT Grade b Pacific Coast Oil Trust Units of Beneficial Interest Oil & Gas Exploration and Production
RRC Grade f Range Resources Corporation Oil & Gas Exploration and Production
RSPP Grade b RSP Permian, Inc. Oil & Gas Exploration and Production
RUN Grade d Sunrun Inc. Renewable Energy Equipment & Services
SBR Grade b Sabine Royalty Trust Oil & Gas Exploration and Production
SDLP Grade d Seadrill Partners LLC Oil Drilling - Offshore
SDR Grade f SandRidge Mississippian Trust II Oil & Gas Exploration and Production
SDRL Grade f Seadrill Oil & Gas Drilling
SDT Grade f SandRidge Mississippian Trust Oil & Gas Exploration and Production
SEDG Grade b SolarEdge Technologies, Inc. Photovoltaic Solar Systems & Equipment
SEMG Grade d Semgroup Corporation Oil & Gas Transportation Services
SEP Grade c Spectra Energy Partners, LP Oil & Gas Transportation Services
SES Grade f Synthesis Energy Systems, Inc. Renewable Energy Equipment & Services
SFL Grade b Ship Finance International Limited Oil & Gas Transportation Services
SGU Grade d Star Gas Partners, L.P. Oil & Gas Refining and Marketing
SHI Grade d SINOPEC Shangai Petrochemical Company, Ltd. Petroleum Refining
SHLX Grade c Shell Midstream Partners, L.P. Oil & Gas Transportation Services
SJT Grade b San Juan Basin Royalty Trust Oil & Gas Exploration and Production
SLB Grade c Schlumberger N.V. Oil Related Services and Equipment
SM Grade b SM Energy Company Oil & Gas Exploration and Production
SMLP Grade c Summit Midstream Partners, LP Oil & Gas Transportation Services
SN Grade d Sanchez Energy Corporation Oil & Gas Exploration and Production
SNMP Grade f Sanchez Midstream Partners LP Natural Gas Exploration & Production - Onshore
SNP Grade f China Petroleum & Chemical Corporation Oil & Gas Refining and Marketing
SOI Grade a Solaris Oilfield Infrastructure, Inc. Oil Related Services and Equipment
SOL Grade c Renesola Ltd. Renewable Energy Equipment & Services
SPH Grade f Suburban Propane Partners, L.P. Oil & Gas Refining and Marketing
SPI Grade f SPI Energy Co., Ltd. Photovoltaic Solar Systems & Equipment
SPN Grade d Superior Energy Services, Inc. Oil Related Services and Equipment
SPWR Grade b SunPower Corporation Photovoltaic Solar Systems & Equipment
SRCI Grade d SRC Energy Inc. Oil & Gas Exploration and Production
SRLP Grade f Sprague Resources LP Oil & Gas Refining and Marketing
SSL Grade b Sasol Ltd. Oil & Gas Refining and Marketing
SSN Grade c Samson Oil & Gas Limited Sponsored ADR (Australia) Oil & Gas Exploration and Production
STNG Grade d Scorpio Tankers Inc. Sea-Borne Tankers
STO Grade a Statoil ASA Integrated Oil & Gas
SU Grade b Suncor Energy Inc. Oil & Gas Refining and Marketing
SUN Grade d Sunoco LP Petroleum Product Wholesale
SUNW Grade f Sunworks, Inc. Photovoltaic Solar Systems & Equipment
SWN Grade d Southwestern Energy Company Oil & Gas Exploration and Production
SXE Grade f Southcross Energy Partners, L.P. Oil & Gas Transportation Services
TA Grade f TravelCenters of America LLC Gasoline stations
TAT Grade b TransAtlantic Petroleum Ltd Oil & Gas Exploration and Production
TCP Grade c TC PipeLines, LP Natural Gas Pipeline
TDW Grade f Tidewater Inc. Oil Related Services and Equipment
TEGP Grade d Tallgrass Energy GP, LP Oil & Gas Transportation Services
TELL Grade d Tellurian Inc. Oil & Gas Exploration and Production
TEP Grade c Tallgrass Energy Partners, LP Oil & Gas Transportation Services
TESO Grade f Tesco Corporation Oil Related Equipment
TGA Grade f Transglobe Energy Corp Oil & Gas Exploration and Production
TGC Grade b Tengasco, Inc. Oil & Gas Exploration and Production
TGEN Grade d Tecogen Inc Renewable Energy Equipment & Services
TGP Grade b Teekay LNG Partners L.P. LNG Transportation & Storage
TGS Grade a Transportadora de Gas del Sur SA TGS Oil & Gas Exploration and Production
TK Grade c Teekay Corporation Sea-Borne Tankers
TLP Grade c Transmontaigne Partners L.P. Transmontaigne Partners L.P. Oil Pipeline
TNK Grade f Teekay Tankers Ltd. Oil & Gas Transportation Services
TOO Grade f Teekay Offshore Partners L.P. Oil & Gas Transportation Services
TOT Grade a Total S.A. Integrated Oil & Gas
TPIC Grade d TPI Composites, Inc. Wind Systems & Equipment
TPL Grade d Texas Pacific Land Trust Oil & Gas Exploration and Production
TRCH Grade d Torchlight Energy Resources, Inc. Oil & Gas Exploration and Production
TRGP Grade c Targa Resources, Inc. Oil & Gas Transportation Services
TRP Grade d TransCanada Corporation Oil & Gas Transportation Services
TS Grade b Tenaris S.A. Oil Related Equipment
TTI Grade b Tetra Technologies, Inc. Oil Related Services and Equipment
TUSK Grade b Mammoth Energy Services, Inc. Oil & Gas Drilling
UEC Grade b Uranium Energy Corp. Uranium
UGP Grade d Ultrapar Participacoes S.A. Gasoline stations
UNT Grade c Unit Corporation Oil & Gas Exploration and Production
URG Grade b Ur Energy Inc Uranium Mining
USAC Grade b USA Compression Partners, LP Oil Related Services and Equipment
UUUU Grade b Energy Fuels Inc Uranium Mining
VET Grade c Vermilion Energy Inc. Oil & Gas Exploration and Production
VLO Grade a Valero Energy Corporation Oil & Gas Refining and Marketing
VLP Grade d Valero Energy Partners LP Oil & Gas Transportation Services
VNOM Grade b Viper Energy Partners LP Oil & Gas Exploration and Production
VOC Grade a VOC Energy Trust Units of Beneficial Interest Integrated Oil & Gas
WES Grade c Western Gas Partners, LP Limited Partner Interests Oil & Gas Refining and Marketing
WG Grade f Willbros Group, Inc. (DE) Oil Related Services
WGP Grade d Western Gas Equity Partners, LP Oil & Gas Refining and Marketing
WLB Grade f Westmoreland Coal Company Coal
WLL Grade c Whiting Petroleum Corporation Oil & Gas Exploration and Production
WMB Grade c Williams Companies, Inc. (The) Oil & Gas Transportation Services
WMLP Grade f Westmoreland Resource Partners, LP Coal
WPX Grade c WPX Energy, Inc. Oil & Gas Exploration and Production
WPXP Grade c WPX Energy, Inc. 6.25% Series A Mandatory Convertible Preferred Stock Oil & Gas Exploration and Production
WPZ Grade c Williams Partners L.P. Oil & Gas Exploration and Production
WRD Grade a WildHorse Resource Development Corporation Oil & Gas Exploration and Production
WTI Grade c W&T Offshore, Inc. Oil & Gas Exploration and Production
WTTR Grade b Select Energy Services, Inc. Oil Related Services
WWR Grade b Westwater Resources, Inc. Uranium Mining
XCO Grade f EXCO Resources, Inc. Exco Resources, Inc. Oil & Gas Exploration and Production
XEC Grade c Cimarex Energy Co Oil & Gas Exploration and Production
XOG Grade c Extraction Oil & Gas, Inc. Oil & Gas Exploration and Production
XOM Grade b Exxon Mobil Corporation Oil & Gas Refining and Marketing
YGE Grade f Yingli Green Energy Holding Company Limited ADR Renewable Energy Equipment & Services
YPF Grade f YPF Sociedad Anonima Integrated Oil & Gas
ZN Grade f Zion Oil & Gas Inc Oil & Gas Exploration and Production

Symbol Grade Name Industry
AAV Grade f Advantage Oil & Gas Ltd Oil & Gas Exploration and Production
AE Grade b Adams Resources & Energy, Inc. Petroleum Product Wholesale
AHGP Grade d Alliance Holdings GP, L.P. - Coal
ALDW Grade a Alon USA Partners, LP Oil & Gas Refining and Marketing
AM Grade c Antero Midstream Partners LP Natural Gas Pipeline
AMGP Grade c Antero Midstream GP LP Oil Related Services and Equipment
AMID Grade c American Midstream Partners, LP Oil & Gas Refining and Marketing
AMRC Grade b Ameresco, Inc. Renewable Energy Services
AMTX Grade f Aemetis, Inc Ethanol Fuels
ANDV Grade a Andeavor Oil & Gas Refining and Marketing
ANDX Grade c Andeavor Logistics LP Oil & Gas Transportation Services
ANW Grade d Aegean Marine Petroleum Network Inc. Oil & Gas Refining and Marketing
APA Grade f Apache Corporation Oil & Gas Exploration and Production
APC Grade d Anadarko Petroleum Corporation Oil & Gas Exploration and Production
APLP Grade d Archrock Partners, L.P. Oil Related Services and Equipment
APU Grade b AmeriGas Partners, L.P. Oil & Gas Refining and Marketing
AR Grade f Antero Resources Corporation Oil & Gas Exploration and Production
ARCX Grade a Arc Logistic Partners LP Oil & Gas Refining and Marketing
AREX Grade c Approach Resources Inc. Oil & Gas Exploration and Production
ARLP Grade d Alliance Resource Partners, L.P. - Coal
AROC Grade f Archrock, Inc. Oil Related Services and Equipment
AXAS Grade b Abraxas Petroleum Corporation Oil & Gas Exploration and Production
BBG Grade c Bill Barrett Corporation Oil & Gas Exploration and Production
BCEI Grade f Bonanza Creek Energy, Inc. Oil Exploration & Production - Onshore
BHGE Grade d Baker Hughes, a GE company Oil Related Services and Equipment
BKEP Grade f Blueknight Energy Partners L.P., L.L.C. Oil & Gas Transportation Services
BLDP Grade d Ballard Power Systems, Inc. Renewable Energy Equipment & Services
BP Grade a BP p.l.c. Oil & Gas Refining and Marketing
BPL Grade d Buckeye Partners L.P. Oil & Gas Transportation Services
BPMP Grade d BP Midstream Partners LP Oil & Gas Transportation Services
BPT Grade c BP Prudhoe Bay Royalty Trust Petroleum Refining
BRN Grade c Barnwell Industries, Inc. Oil & Gas Exploration and Production
BRS Grade c Bristow Group Inc. Oil Related Services and Equipment
BSM Grade a Black Stone Minerals, L.P. Oil & Gas Exploration and Production
BTE Grade c Baytex Energy Corp Oil & Gas Exploration and Production
BWEN Grade f Broadwind Energy, Inc. Wind Systems & Equipment
BWP Grade d Boardwalk Pipeline Partners LP Natural Gas Pipeline
BXE Grade f Bellatrix Exploration Oil & Gas Exploration and Production
CAPL Grade f CrossAmerica Partners LP Petroleum Product Wholesale
CCJ Grade b Cameco Corporation Uranium
CCLP Grade d CSI Compressco LP Oil Related Services and Equipment
CCR Grade c CONSOL Coal Resources LP Coal
CDEV Grade c Centennial Resource Development, Inc. Integrated Oil & Gas
CEI Grade f Camber Energy, Inc. Oil Exploration & Production - Onshore
CELP Grade f Cypress Energy Partners, L.P. Oil Related Services
CEO Grade a CNOOC Limited Oil & Gas Exploration and Production
CEQP Grade b Crestwood Equity Partners LP Oil & Gas Refining and Marketing
CGG Grade f CGG Oil Related Services
CHK Grade f Chesapeake Energy Corporation Oil & Gas Exploration and Production
CHKR Grade f Chesapeake Granite Wash Trust Oil & Gas Exploration and Production
CHNR Grade b China Natural Resources, Inc. Coal
CIE Grade f Cobalt International Energy, Inc. Oil Exploration & Production - Offshore
CIR Grade f CIRCOR International, Inc. Oil Related Equipment
CKH Grade d SEACOR Holdings Inc. Oil Related Services
CKX Grade f CKX Lands, Inc. Oil & Gas Exploration and Production
CLB Grade c Core Laboratories N.V. Oil Related Services and Equipment
CLD Grade b Cloud Peak Energy Inc Coal
CLMT Grade d Calumet Specialty Products Partners, L.P. Petroleum Refining
CLNE Grade f Clean Energy Fuels Corp. Oil & Gas Refining and Marketing
CLR Grade b Continental Resources, Inc. Oil & Gas Exploration and Production
CNNX Grade c Cone Midstream Partners LP Natural Gas Pipeline
CNQ Grade b Canadian Natural Resources Limited Oil & Gas Exploration and Production
CNX Grade d CONSOL Energy Inc. Coal
COG Grade b Cabot Oil & Gas Corporation Oil & Gas Exploration and Production
COP Grade b ConocoPhillips Oil & Gas Exploration and Production
CPE Grade d Callon Petroleum Company Oil & Gas Exploration and Production
CQH Grade a Cheniere Energy Partners LP Holdings, LLC LNG Transportation & Storage
CQP Grade c Cheniere Energy Partners, LP Oil & Gas Transportation Services
CRC Grade c California Resources Corporation Oil & Gas Exploration and Production
CRK Grade b Comstock Resources, Inc. Oil & Gas Exploration and Production
CRR Grade b Carbo Ceramics, Inc. Oil Related Services and Equipment
CRZO Grade c Carrizo Oil & Gas, Inc. Oil & Gas Exploration and Production
CSIQ Grade b Canadian Solar Inc. Photovoltaic Solar Systems & Equipment
CVE Grade f Cenovus Energy Inc Oil & Gas Refining and Marketing
CVI Grade a CVR Energy Inc. Petroleum Refining
CVRR Grade b CVR Refining, LP Oil & Gas Refining and Marketing
CVX Grade a Chevron Corporation Petroleum Refining
CXO Grade b Concho Resources Inc. Oil & Gas Exploration and Production
CZZ Grade b Cosan Limited Oil & Gas Refining and Marketing
DCP Grade b DCP Midstream, LP Natural Gas Pipeline
DHT Grade d DHT Holdings, Inc. Sea-Borne Tankers
DK Grade a Delek US Holdings, Inc. Petroleum Refining
DKL Grade b Delek Logistics Partners, L.P. Oil & Gas Transportation Services
DLNG Grade f Dynagas LNG Partners LP LNG Transportation & Storage
DM Grade c Dominion Midstream Partners, LP LNG Transportation & Storage
DNN Grade b Denison Mines Corp Uranium Mining
DNR Grade c Denbury Resources Inc. Oil & Gas Exploration and Production
DO Grade b Diamond Offshore Drilling, Inc. Oil & Gas Drilling
DQ Grade b Daqo New Energy Corp. Photovoltaic Solar Systems & Equipment
DRQ Grade c Dril-Quip, Inc. Oil Related Equipment
DVN Grade b Devon Energy Corporation Oil & Gas Exploration and Production
DWSN Grade c Dawson Geophysical Company Oil Related - Surveying & Mapping Services
E Grade c ENI S.p.A. Integrated Oil & Gas
EC Grade a Ecopetrol S.A. Integrated Oil & Gas
ECA Grade c Encana Corporation Oil & Gas Exploration and Production
ECR Grade f Eclipse Resources Corporation Oil & Gas Exploration and Production
ECT Grade d ECA Marcellus Trust I Oil & Gas Exploration and Production
EEP Grade d Enbridge Energy, L.P. Class A Oil & Gas Transportation Services
EEQ Grade f Enbridge Energy Management LLC Oil & Gas Transportation Services
EGN Grade b Energen Corporation Oil & Gas Exploration and Production
EGY Grade d Vaalco Energy Inc Oil & Gas Exploration and Production
EMES Grade f Emerge Energy Services LP Oil Related Services and Equipment
ENB Grade c Enbridge Inc Oil & Gas Transportation Services
ENBL Grade d Enable Midstream Partners, LP Oil & Gas Transportation Services
ENLC Grade c EnLink Midstream, LLC Oil & Gas Transportation Services
ENLK Grade c EnLink Midstream Partners, LP Oil & Gas Transportation Services
ENPH Grade c Enphase Energy, Inc. Photovoltaic Solar Systems & Equipment
ENRJ Grade f EnerJex Resources, Inc. Oil Exploration & Production - Onshore
ENSV Grade b Enservco Corporation Oil Related Services and Equipment
EOG Grade b EOG Resources, Inc. Oil & Gas Exploration and Production
EPD Grade c Enterprise Products Partners L.P. Oil & Gas Transportation Services
EPE Grade f EP Energy Corporation Oil & Gas Exploration and Production
EPM Grade f Evolution Petroleum Corporation, Inc. Oil Exploration & Production - Onshore
EQGP Grade d EQT GP Holdings, LP Oil & Gas Exploration and Production
EQM Grade c EQT Midstream Partners, LP Oil & Gas Transportation Services
EQT Grade f EQT Corporation Oil & Gas Exploration and Production
ERF Grade d Enerplus Corporation Oil & Gas Exploration and Production
ERN Grade b Erin Energy Corp. Oil & Gas Exploration and Production
ESES Grade d Eco-Stim Energy Solutions, Inc. Oil Related Services and Equipment
ESTE Grade c Earthstone Energy, Inc. Oil & Gas Exploration and Production
ESV Grade c Ensco plc Oil & Gas Drilling
ETE Grade d Energy Transfer Equity, L.P. Natural Gas Pipeline
ETP Grade f Energy Transfer Partners, L.P. Oil & Gas Transportation Services
EVA Grade d Enviva Partners, LP Biomass & Biogas Fuels
EVEP Grade d EV Energy Partners, L.P. Oil & Gas Exploration and Production
EXTN Grade d Exterran Corporation Oil Related Services and Equipment
EXXI Grade f Energy XXI Gulf Coast, Inc. Oil & Gas Exploration and Production
FANG Grade a Diamondback Energy, Inc. Oil & Gas Exploration and Production
FCEL Grade c FuelCell Energy, Inc. Renewable Energy Equipment & Services
FELP Grade d Foresight Energy LP Coal
FET Grade c Forum Energy Technologies, Inc. Oil Related Services and Equipment
FF Grade d FutureFuel Corp. Biodiesel
FGP Grade f Ferrellgas Partners, L.P. Oil Related Services and Equipment
FI Grade f Frank's International N.V. Oil Related Services and Equipment
FMSA Grade c FMSA Holdings Inc. Oil Related Services and Equipment
FPP Grade f FieldPoint Petroleum Corporation Oil & Gas Exploration and Production
FRAC Grade c Keane Group, Inc. Oil Related Services
FRO Grade f Frontline Ltd. Oil & Gas Transportation Services
FSLR Grade b First Solar, Inc. Photovoltaic Solar Systems & Equipment
FTK Grade f Flotek Industries, Inc. Oil Related Services and Equipment
GBR Grade d New Concept Energy, Inc Oil & Gas Exploration and Production
GEL Grade d Genesis Energy, L.P. Oil & Gas Transportation Services
GEOS Grade f Geospace Technologies Corporation Oil Related Services and Equipment
GEVO Grade f Gevo, Inc. Renewable Fuels
GIFI Grade d Gulf Island Fabrication, Inc. Oil Related Services and Equipment
GLNG Grade b Golar LNG Limited LNG Transportation & Storage
GLOG Grade a GasLog Ltd. LNG Transportation & Storage
GLOP Grade d GasLog Partners LP LNG Transportation & Storage
GLP Grade f Global Partners LP Global Partners LP Petroleum Product Wholesale
GMLP Grade c Golar LNG Partners LP LNG Transportation & Storage
GNRT Grade f Gener8 Maritime, Inc. Sea-Borne Tankers
GPOR Grade f Gulfport Energy Corporation Oil & Gas Exploration and Production
GPP Grade d Green Plains Partners LP Renewable Fuels
GPRE Grade d Green Plains Renewable Energy, Inc. Ethanol Fuels
HAL Grade b Halliburton Company Oil Related Services and Equipment
HEP Grade b Holly Energy Partners, L.P. Oil Pipeline
HES Grade c Hess Corporation Oil & Gas Refining and Marketing
HESM Grade b Hess Midstream Partners LP LNG Transportation & Storage
HFC Grade a HollyFrontier Corporation Petroleum Refining
HGT Grade f Hugoton Royalty Trust Oil & Gas Exploration and Production
HLX Grade d Helix Energy Solutions Group, Inc. Oil Related Services and Equipment
HMLP Grade f Hoegh LNG Partners LP Sea-Borne Tankers
HNRG Grade c Hallador Energy Company Coal
HP Grade b Helmerich & Payne, Inc. Oil & Gas Drilling
HQCL Grade f Hanwha Q CELLS Co., Ltd. Renewable Energy Equipment & Services
HUSA Grade f Houston American Energy Corporation Oil & Gas Exploration and Production
IMO Grade d Imperial Oil Limited Oil & Gas Refining and Marketing
INT Grade f World Fuel Services Corporation Petroleum Product Wholesale
IO Grade b Ion Geophysical Corporation Oil Related Services and Equipment
IPWR Grade f Ideal Power Inc. Renewable Energy Equipment & Services
ISRL Grade d Isramco, Inc. Oil & Gas Exploration and Production
JAG Grade b Jagged Peak Energy Inc. Unconventional Oil & Gas Drilling
JASO Grade d JA Solar Holdings, Co., Ltd. Renewable Energy Equipment & Services
JKS Grade c JinkoSolar Holding Company Limited Photovoltaic Solar Systems & Equipment
JONE Grade f Jones Energy, Inc. Oil & Gas Exploration and Production
KMI Grade d Kinder Morgan, Inc. Oil & Gas Transportation Services
KNOP Grade d KNOT Offshore Partners LP Sea-Borne Tankers
KOS Grade f Kosmos Energy Ltd. Oil & Gas Exploration and Production
KRP Grade d Kimbell Royalty Partners Integrated Oil & Gas
LGCY Grade f Legacy Reserves LP Oil & Gas Exploration and Production
LGCYO Grade f Legacy Reserves LP - 8.00% Series B Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units Oil & Gas Exploration and Production
LGCYP Grade f Legacy Reserves LP - 8% Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units Oil & Gas Exploration and Production
LLEX Grade f Lilis Energy, Inc. Oil & Gas Exploration and Production
LNG Grade b Cheniere Energy, Inc. LNG Transportation & Storage
LPG Grade d Dorian LPG Ltd. Sea-Borne Tankers
LPI Grade d Laredo Petroleum Holdings, Inc. Oil & Gas Exploration and Production
MCEP Grade c Mid-Con Energy Partners, LP Oil & Gas Exploration and Production
MCF Grade f Contango Oil & Gas Company Oil & Gas Exploration and Production
MDR Grade b McDermott International, Inc. Oil Related Services and Equipment
MIND Grade c Mitcham Industries, Inc. Oil Related Services and Equipment
MMP Grade c Magellan Midstream Partners L.P. Limited Partnership Oil & Gas Transportation Services
MNGA Grade f MagneGas Corporation] Hydrogen Fuel
MPC Grade a Marathon Petroleum Corporation Oil & Gas Refining and Marketing
MPLX Grade a MPLX LP Oil & Gas Transportation Services
MRO Grade b Marathon Oil Corporation Oil & Gas Exploration and Production
MTDR Grade b Matador Resources Company Oil & Gas Exploration and Production
MTR Grade c Mesa Royalty Trust Oil & Gas Exploration and Production
MTRX Grade c Matrix Service Company Oil Related Services and Equipment
MUR Grade b Murphy Oil Corporation Oil & Gas Exploration and Production
MUSA Grade b Murphy USA Inc. Gasoline stations
MVO Grade a MV Oil Trust Units of Beneficial Interests Oil & Gas Exploration and Production
MXC Grade d Mexco Energy Corporation Oil & Gas Exploration and Production
NAT Grade f Nordic American Tankers Limited Sea-Borne Tankers
NBL Grade d Noble Energy Inc. Oil & Gas Exploration and Production
NBLX Grade c Noble Midstream Partners LP Oil & Gas Transportation Services
NBR Grade f Nabors Industries Ltd. Oil & Gas Drilling
NCSM Grade d NCS Multistage Holdings, Inc. Oil Related Services and Equipment
NDRO Grade d Enduro Royalty Trust Trust Units Oil & Gas Exploration and Production
NFX Grade d Newfield Exploration Company Oil & Gas Exploration and Production
NGL Grade b NGL Energy Partners LP Oil & Gas Refining and Marketing
NGS Grade f Natural Gas Services Group, Inc. Oil Related Equipment
NOA Grade c North American Energy Partners, Inc. Oil Related Services
NOG Grade c Northern Oil and Gas, Inc. Oil & Gas Exploration and Production
NOV Grade d National Oilwell Varco, Inc. Oil Related Services and Equipment
NR Grade d Newpark Resources, Inc. Oil Related Services and Equipment
NRP Grade f Natural Resource Partners LP Limited Partnership Coal
NRT Grade b North European Oil Royality Trust Oil & Gas Exploration and Production
NS Grade d Nustar Energy L.P. Oil Pipeline
NSH Grade f Nustar GP Holdings, LLC Units Oil Pipeline
NVGS Grade d Navigator Holdings Ltd. LNG Transportation & Storage
OAS Grade d Oasis Petroleum Inc. Unconventional Oil & Gas Production
OBE Grade c Obsidian Energy Ltd. Oil Exploration & Production - Onshore
OII Grade d Oceaneering International, Inc. Oil Related Services and Equipment
OIS Grade d Oil States International, Inc. Oil Related Equipment
OKE Grade c ONEOK, Inc. Oil & Gas Transportation Services
OMP Grade a Oasis Midstream Partners LP Oil Related Services and Equipment
OXY Grade a Occidental Petroleum Corporation Oil & Gas Exploration and Production
PAA Grade d Plains All American Pipeline, L.P. Oil & Gas Transportation Services
PAGP Grade d Plains Group Holdings, L.P. Oil & Gas Transportation Services
PBA Grade a Pembina Pipeline Corp. Oil & Gas Transportation Services
PBF Grade b PBF Energy Inc. Oil & Gas Refining and Marketing
PBFX Grade b PBF Logistics LP Oil & Gas Transportation Services
PBR Grade c Petroleo Brasileiro S.A.- Petrobras Integrated Oil & Gas
PBR.A Grade c Petroleo Brasileiro S.A.- Petrobras Integrated Oil & Gas
PDCE Grade d PDC Energy, Inc. Oil & Gas Exploration and Production
PDS Grade d Precision Drilling Corporation Oil & Gas Drilling
PE Grade c Parsley Energy, Inc. Oil & Gas Exploration and Production
PEIX Grade f Pacific Ethanol, Inc. Ethanol Fuels
PER Grade f SandRidge Permian Trust Oil & Gas Exploration and Production
PES Grade c Pioneer Energy Services Corp. Oil & Gas Drilling
PFIE Grade d Profire Energy, Inc. Oil Related Services
PGH Grade f Pengrowth Energy Corporation Oil & Gas Exploration and Production
PHII Grade c PHI, Inc. - Voting Oil Related Services and Equipment
PHIIK Grade c PHI, Inc. - Non-Voting Oil Related Services and Equipment
PHX Grade d Panhandle Oil and Gas Inc Oil & Gas Exploration and Production
PKD Grade f Parker Drilling Company Oil & Gas Drilling
PLUG Grade d Plug Power, Inc. Stationary Fuel Cells
PNRG Grade c PrimeEnergy Corporation Oil & Gas Exploration and Production
PQ Grade f Petroquest Energy Inc Oil & Gas Exploration and Production
PSX Grade a Phillips 66 Oil & Gas Refining and Marketing
PSXP Grade c Phillips 66 Partners LP Oil & Gas Transportation Services
PTEN Grade b Patterson-UTI Energy, Inc. Oil & Gas Drilling
PTR Grade b PetroChina Company Limited Integrated Oil & Gas
PUMP Grade a ProPetro Holding Corp. Oil Related Services and Equipment
PXD Grade c Pioneer Natural Resources Company Oil & Gas Exploration and Production
PZE Grade d Petrobras Argentina S.A. ADS Integrated Oil & Gas
QEP Grade c QEP Resources, Inc. Integrated Oil & Gas
RCON Grade d Recon Technology, Ltd. Oil Related Services and Equipment
RDC Grade b Rowan Companies plc Oil & Gas Drilling
RDS.A Grade a Royal Dutch Shell PLC Class A Integrated Oil & Gas
RDS.B Grade a Royal Dutch Shell PLC Royal Dutch Shell PLC Class B Integrated Oil & Gas
REGI Grade d Renewable Energy Group, Inc. Biomass & Biogas Fuels
REN Grade f Resolute Energy Corporation Oil Exploration & Production - Onshore
RES Grade b RPC, Inc. Oil Related Services and Equipment
REX Grade f REX American Resources Corporation Ethanol Fuels
REXX Grade f Rex Energy Corporation Oil & Gas Exploration and Production
RIG Grade d Transocean Ltd (Switzerland) Oil & Gas Drilling
RMP Grade c Rice Midstream Partners LP LNG Transportation & Storage
RNET Grade f RigNet, Inc. Oil Related Services
RNGR Grade d Ranger Energy Services, Inc. Oil Related Services and Equipment
ROSE Grade f Rosehill Resources Inc. Oil & Gas Exploration and Production
ROYT Grade b Pacific Coast Oil Trust Units of Beneficial Interest Oil & Gas Exploration and Production
RRC Grade f Range Resources Corporation Oil & Gas Exploration and Production
RSPP Grade b RSP Permian, Inc. Oil & Gas Exploration and Production
RUN Grade d Sunrun Inc. Renewable Energy Equipment & Services
SBR Grade b Sabine Royalty Trust Oil & Gas Exploration and Production
SDLP Grade d Seadrill Partners LLC Oil Drilling - Offshore
SDR Grade f SandRidge Mississippian Trust II Oil & Gas Exploration and Production
SDRL Grade f Seadrill Oil & Gas Drilling
SDT Grade f SandRidge Mississippian Trust Oil & Gas Exploration and Production
SEDG Grade b SolarEdge Technologies, Inc. Photovoltaic Solar Systems & Equipment
SEMG Grade d Semgroup Corporation Oil & Gas Transportation Services
SEP Grade c Spectra Energy Partners, LP Oil & Gas Transportation Services
SES Grade f Synthesis Energy Systems, Inc. Renewable Energy Equipment & Services
SFL Grade b Ship Finance International Limited Oil & Gas Transportation Services
SGU Grade d Star Gas Partners, L.P. Oil & Gas Refining and Marketing
SHI Grade d SINOPEC Shangai Petrochemical Company, Ltd. Petroleum Refining
SHLX Grade c Shell Midstream Partners, L.P. Oil & Gas Transportation Services
SJT Grade b San Juan Basin Royalty Trust Oil & Gas Exploration and Production
SLB Grade c Schlumberger N.V. Oil Related Services and Equipment
SM Grade b SM Energy Company Oil & Gas Exploration and Production
SMLP Grade c Summit Midstream Partners, LP Oil & Gas Transportation Services
SN Grade d Sanchez Energy Corporation Oil & Gas Exploration and Production
SNMP Grade f Sanchez Midstream Partners LP Natural Gas Exploration & Production - Onshore
SNP Grade f China Petroleum & Chemical Corporation Oil & Gas Refining and Marketing
SOI Grade a Solaris Oilfield Infrastructure, Inc. Oil Related Services and Equipment
SOL Grade c Renesola Ltd. Renewable Energy Equipment & Services
SPH Grade f Suburban Propane Partners, L.P. Oil & Gas Refining and Marketing
SPI Grade f SPI Energy Co., Ltd. Photovoltaic Solar Systems & Equipment
SPN Grade d Superior Energy Services, Inc. Oil Related Services and Equipment
SPWR Grade b SunPower Corporation Photovoltaic Solar Systems & Equipment
SRCI Grade d SRC Energy Inc. Oil & Gas Exploration and Production
SRLP Grade f Sprague Resources LP Oil & Gas Refining and Marketing
SSL Grade b Sasol Ltd. Oil & Gas Refining and Marketing
SSN Grade c Samson Oil & Gas Limited Sponsored ADR (Australia) Oil & Gas Exploration and Production
STNG Grade d Scorpio Tankers Inc. Sea-Borne Tankers
STO Grade a Statoil ASA Integrated Oil & Gas
SU Grade b Suncor Energy Inc. Oil & Gas Refining and Marketing
SUN Grade d Sunoco LP Petroleum Product Wholesale
SUNW Grade f Sunworks, Inc. Photovoltaic Solar Systems & Equipment
SWN Grade d Southwestern Energy Company Oil & Gas Exploration and Production
SXE Grade f Southcross Energy Partners, L.P. Oil & Gas Transportation Services
TA Grade f TravelCenters of America LLC Gasoline stations
TAT Grade b TransAtlantic Petroleum Ltd Oil & Gas Exploration and Production
TCP Grade c TC PipeLines, LP Natural Gas Pipeline
TDW Grade f Tidewater Inc. Oil Related Services and Equipment
TEGP Grade d Tallgrass Energy GP, LP Oil & Gas Transportation Services
TELL Grade d Tellurian Inc. Oil & Gas Exploration and Production
TEP Grade c Tallgrass Energy Partners, LP Oil & Gas Transportation Services
TESO Grade f Tesco Corporation Oil Related Equipment
TGA Grade f Transglobe Energy Corp Oil & Gas Exploration and Production
TGC Grade b Tengasco, Inc. Oil & Gas Exploration and Production
TGEN Grade d Tecogen Inc Renewable Energy Equipment & Services
TGP Grade b Teekay LNG Partners L.P. LNG Transportation & Storage
TGS Grade a Transportadora de Gas del Sur SA TGS Oil & Gas Exploration and Production
TK Grade c Teekay Corporation Sea-Borne Tankers
TLP Grade c Transmontaigne Partners L.P. Transmontaigne Partners L.P. Oil Pipeline
TNK Grade f Teekay Tankers Ltd. Oil & Gas Transportation Services
TOO Grade f Teekay Offshore Partners L.P. Oil & Gas Transportation Services
TOT Grade a Total S.A. Integrated Oil & Gas
TPIC Grade d TPI Composites, Inc. Wind Systems & Equipment
TPL Grade d Texas Pacific Land Trust Oil & Gas Exploration and Production
TRCH Grade d Torchlight Energy Resources, Inc. Oil & Gas Exploration and Production
TRGP Grade c Targa Resources, Inc. Oil & Gas Transportation Services
TRP Grade d TransCanada Corporation Oil & Gas Transportation Services
TS Grade b Tenaris S.A. Oil Related Equipment
TTI Grade b Tetra Technologies, Inc. Oil Related Services and Equipment
TUSK Grade b Mammoth Energy Services, Inc. Oil & Gas Drilling
UEC Grade b Uranium Energy Corp. Uranium
UGP Grade d Ultrapar Participacoes S.A. Gasoline stations
UNT Grade c Unit Corporation Oil & Gas Exploration and Production
URG Grade b Ur Energy Inc Uranium Mining
USAC Grade b USA Compression Partners, LP Oil Related Services and Equipment
UUUU Grade b Energy Fuels Inc Uranium Mining
VET Grade c Vermilion Energy Inc. Oil & Gas Exploration and Production
VLO Grade a Valero Energy Corporation Oil & Gas Refining and Marketing
VLP Grade d Valero Energy Partners LP Oil & Gas Transportation Services
VNOM Grade b Viper Energy Partners LP Oil & Gas Exploration and Production
VOC Grade a VOC Energy Trust Units of Beneficial Interest Integrated Oil & Gas
WES Grade c Western Gas Partners, LP Limited Partner Interests Oil & Gas Refining and Marketing
WG Grade f Willbros Group, Inc. (DE) Oil Related Services
WGP Grade d Western Gas Equity Partners, LP Oil & Gas Refining and Marketing
WLB Grade f Westmoreland Coal Company Coal
WLL Grade c Whiting Petroleum Corporation Oil & Gas Exploration and Production
WMB Grade c Williams Companies, Inc. (The) Oil & Gas Transportation Services
WMLP Grade f Westmoreland Resource Partners, LP Coal
WPX Grade c WPX Energy, Inc. Oil & Gas Exploration and Production
WPXP Grade c WPX Energy, Inc. 6.25% Series A Mandatory Convertible Preferred Stock Oil & Gas Exploration and Production
WPZ Grade c Williams Partners L.P. Oil & Gas Exploration and Production
WRD Grade a WildHorse Resource Development Corporation Oil & Gas Exploration and Production
WTI Grade c W&T Offshore, Inc. Oil & Gas Exploration and Production
WTTR Grade b Select Energy Services, Inc. Oil Related Services
WWR Grade b Westwater Resources, Inc. Uranium Mining
XCO Grade f EXCO Resources, Inc. Exco Resources, Inc. Oil & Gas Exploration and Production
XEC Grade c Cimarex Energy Co Oil & Gas Exploration and Production
XOG Grade c Extraction Oil & Gas, Inc. Oil & Gas Exploration and Production
XOM Grade b Exxon Mobil Corporation Oil & Gas Refining and Marketing
YGE Grade f Yingli Green Energy Holding Company Limited ADR Renewable Energy Equipment & Services
YPF Grade f YPF Sociedad Anonima Integrated Oil & Gas
ZN Grade f Zion Oil & Gas Inc Oil & Gas Exploration and Production