ExxonMobil      

corporate.exxonmobil.com

Chevron    

chevron.com

BP      

bp.com

ConocoPhillips      

conocophillips.com

Eni    

eni.com

BHP Billiton  

bhp.com

Koch Industries    

kochind.com

Neste          

neste.com

Enbridge          

enbridge.com

Imperial Oil (Esso)    

imperialoil.ca

Constellation  

theconstellation.com

Devon Energy  

devonenergy.com

Gulf

gulfoil.com

Teck  

teck.com

Phillips 66          

phillips66.com

Seadrill  

seadrill.com

Apache        

apachecorp.com

Woodside Energy  

woodside.com.au

Energy Transfer    

energytransfer.com

Husky      

huskyenergy.com

Sunoco  

sunoco.com

Range    

rangeresources.co.uk

Evaluate Energy    

evaluateenergy.com

Zenith Energy          

zenithenergy.ca

ThreeD Capital  

threedcapital.com

Parkland    

parkland.ca

Calima Energy    

calimaenergy.com

Otto Energy  

ottoenergy.com

Magellan Midstream Partners  

magellanlp.com

3MV Energy

Abenteuer Resources

Abilene Oil & Gas

Abington Resources

Adaro

adaro.com

Addax Petroleum

addaxpetroleum.com

Adira Energy

Abu Dhabi National Oil Company (ADNOC)

Advanced Microgrid Solutions

advmicrogrid.com

Advantage Oil & Gas

advantageog.com

Advantagewon Oil

Africa Energy

Africa Oil  

africaoilcorp.com

Agri-Dynamics

Akita DRILLING

akita-drilling.com

Akwa Group

Aladdin International

aladdin-international.com

Algerian Petroleum Institute

Allied Energy

Alston Energy

Altai Resources

Altima Resources

Altura Energy

alturaenergy.ca

Amarok Energy

American Energy Group

American International Holdings

American Natural

americannatural.com

American Oil & Gas

American Patriot Oil & Gas

American Petro-Hunter

Amerisur Resources

Amplify Energy

Anadarko

anadarko.com

Andes Energia

Anglo-Persian Oil Company defunct

Anhui Tianda Oil Pipe

ANKAA

Anschutz

anschutz-exploration.com

Anschutz Exploration

anschutz-exploration.com

Antares Energy

Anterra Energy

Antrim Energy

Approach Resources

approachresources.com

Aramco  

aramco.com

ARC Resources

arcresources.com

Arcan Resources

Archer

archerwell.com

Archer Petroleum

archerpetroleumltd.com

Arctic Hunter Energy   defunct

Argos Resources

argosresources.com

Arkanova Energy

Arlmont Fuel

arlmontfuel.com

Aroway Energy

ArPetrol

Artisan Energy defunct

Ascent Resources

ascentresources.com

Asian Mineral Resources

asianmineralres.com

Attock Petroleum, oil & gas marketing

Attock Refinery

AuraSource

Aurex Energy

aurexenergy.ca

AusTex Oil

Avanti Energy

Awilco Driling

Axis Energy Services

axisofs.com

Azabache Energy

Azul Energy  

azule-energy.com

Azure Resources DMCC

azureresources.co

Bahamas Petroleum

Bahrain Petroleum

Bakken Shale

bakkenshale.com

Bakken Water

Basis Energy

basisenergy.com

Battalion Oil

Bayport International Holdings

Bayshore Petroleum,

Beaumont Select Corporations

Bengal Energy

Bill Barrett Corp   defunct

Birch Lake Energy

Black Rock Petroleum

Blackbird Energy

Blackdog Resources

Blackhawk Resource

Blackrock Oil

Blacksteel Energy

Blueknight Energy

bkep.com

BNP Resources

Boardman Energy Partners

Boardman Energy Partners LLC

Boart Longyear Group

Border Petroleum

BP Canada

bpcan.com

BP Prudhoe Bay Royalty Trust

Bridas

Brisio Innovations

Brixton Energy

brixtonenergy.co.uk

Brookwater Ventures

Brown & Root

brownandroot.com

BRS Resources

Burisma

Buru Energy

Butte Energy

bwogp

bwogp.com

C&J Energy Services

Cairn India

cairnindia.com

Cal Dive

Caltex

caltex.com

Canacol Energy

canacolenergy.com

Canada Energy Partners

Canadian Imperial Venture

Canadian Oil Recovery & Remediation defunct

corre.com

Canadian Oil Sands

Canadian Quantum Energy

Canadian Spirit Resources

Canamax Energy

Canvas Energy

canvasenergy.com

Capital City Energy Group

Cardinal Energy Group

Carrizo

carrizo.com

Casablanca Mining

Cascadia Resources

Caspian Drilling Company

Castrol

castrol.com

Cathedral Energy Services

cathedralenergyservices.com

CAVU Resources

CBM Asia Development

Cedar LNG

cedarlng.com

Ceiba Energy Services

Cenovus Energy

cenovus.com

Century Energy

Cequence Energy

CES Energy Solutions

CGX Energy

Chambers Group    

chambersgroup.co

Chariot Oil & Gas

chariotoilandgas.com

Chesapeake Granite Wash Trust

chkgranitewashtrust.com

China Natural Gas

Chinook Energy

Chord Energy

chordenergy.com

Citgo

citgo.com

CITIC Resources

Claren Energy,

Clenergen defunct

CLIFFS

clevelandcliffs.com

Clickable Oil

clickableoil.com

CN Resources

Canadian Natural (CNRL)  

cnrl.com

Coastal Caribbean Oils & Minerals* defunct

Cobalt Internatinoal Energy

cobaltintl.com

Cobra Venture

Coil Tubing Technology

Concho

concho.com

ConocoPhillips Canada

conocophillips.ca

Contact Exploration

Continental Resources

clr.com

CorEnergy

corenergy.reit

Crew Energy

Crown Point Energy

crownpointenergy.com

CUDA Oil and Gas

cudaoilandgas.com

Cue Energy Resources

Cycle Energy

cyclenrgy.com

CYGAM Energy

Cygnus Oil & Gas

Daelim Industrial

daelim.co.kr

Dalmac Energy,

Dana Petroleum

dana-petroleum.com

Decklar Resources

decklarresources.com

Deep Down

Delek

delekus.com

Delek Drilling

delekdrilling.com

Delphi Energy

Delta Oil & Gas

Desert Mountain Energy

desertmountainenergy.com

Desmarais Energy

Detector Exploration

Devin Energy

Diamond Offshore Drilling

diamondoffshore.com

Diamondback Energy

diamondbackenergy.com

Discovery Energy

Diversified Resources

DNO

dno.no

Dominovas Energy

Donnybrook Energy

DualEx Energy International,

Dunes Exploration

DXI Energy

dxienergy.com

Eagle Energy Resources

erg.energy

Eaglewood Energy

East West Petroleum,

Eco (Atlantic) Oil & Gas

Edge Resources

EGAS, state-owned oil and gas holdings

EGPI Firecreek

El Pas Natural Gas

pipeportal.kindermorgan.com

Elkwater Resources

EM Energy

Emerald Bay Energy

Emerald Oil & Gas NL

Emerson Process Management

emersonprocess.com

Emperor Oil

Empire Oil Refineries

Empresa Nacional del Petróleo, state-owned gas and oil

Empresas Copec

Enagás

enagas.es

Énergie Valero

energievalero.ca

Energulf Resources

Energy & Technology

Energy Finders

Energy Revenue America defunct

Energy World

Enseco Energy Services

ENSERVCO

enservco.com

Ensign

ensignenergy.com

Entek Energy

Enterprise Group

Eon NRG

eonnrg.com

EP Energy

epenergy.com

EQUATE

equate.com

Equinor  

equinor.com

Equitrans Midstream

equitransmidstream.com

ERHC Energy

Esrey

esreyresources.com

Essar Energy

essarmauritius.com

Essar Oil

essaroil.co.in

Estrella International Energy Services

EuRoPol GAZ

europolgaz.com.pl

Extreme Biodiesel

Exxon

exxon.com

Ezra Holdings

ezraholdings.com

Fagioli

fagioli.com

Falconridge Oil Technologies

Fas Gas Plus

fasgasplus.ca

Firebird Energy

firebirdenergy.com

First Seismic

FLINT

flintcorp.com

Flying A Petroleum

Forbes Energy Services

forbesenergyservices.com

Forent Energy

Fortem Resources

FortisBC

fortisbc.com

Freedom Oil & Gas

freedomoilandgas.com.au

Freestone Resources

Fremont Pete

Frontier Energy

Frontier Oilfield Services

Gale Force Petroleum

Galileo Petroleum

Gastem

Gazprom

gazprom.com

Gazprom Neft

gazprom-neft.com

Gazprom Transgaz Belarus

belarus-tr.gazprom.ru

Genesis Energy

genesisenergy.com

Genie Energy

genie.com

Genoil

GeoPetro Resources

Geopulse Explorations

Georox Resources,

Ghana National Petroleum Corporation

Ghana Oil Company

Givot Olam Oil Exploration

Glencore

glencore.com

Global Petroleum

globalpetroleum.com.au

Golconda Resources

Golden Coast Energy

Goldeneye Resources

Goodrich Petroleum

goodrichpetroleumcorp.investorroom.com

Gordon Creek Energy

Granite Oil   defunct

Green Mountain Development

Green Oasis Environmental

Green Technology Solutions

Greencastle Resources

Groundstar Resources

Guard Dog

Guardian Exploration

Gulf Keystone Petroleum

Gulf Shores Resources

Harbour Energy

harbourenergy.com

Hart Energy  

hartenergy.com

Hawk Exploration

Helios Energy Limited

heliosenergyltd.com

Hellenic Petroleum

Hellix Ventures,

Helmerich & Payne

hpinc.com

Hemisphere Energy Corporation

Hermes Financial

HF Sinclair

hfsinclair.com

High Arctic

haes.ca

High North Resources

Hillcrest Petroleum

Hinduja

hindujagroup.com

Hinto Energy

HK eBus

Höegh LNG Partners

hoeghlngpartners.com

Horizon Petroleum

Horn Petroleum Corporation

HRG

harbingergroupinc.com

HRT Participacoes em Petroleo

HTC Purenergy

Hunting Group

Huntington Exploration

Hurricane Energy

hurricaneenergy.com

Hyperion Exploration

Hyundai Heavy Industries Group

hyundaiheavy.com

i3 Energy  

i3.energy

IE Miller

Immunoprecise Antibodies

Imperial Resources

Independence Contract Drilling

Index Oil & Gas

Infinity Energy Resources

Intersoll-Rand

ingersollrandproducts.com

Inpex

InPlay Oil

inplayoil.com

Integrated Drilling Equipment Holdings

Intercept Energy Services

International Frontier Resources

Ironhorse Oil & Gas

Irving

irvingoil.com

Irving Oil

irvingoil.com

Jadela Oil

James Bay Resources

Jersey Oil and Gas

jerseyoilandgas.com

Jones Energy

Junex

Justiss Oil Co.

Jutal Offshore Oil Service

JXTG Holdings

hd.jxtg-group.co.jp

Kallisto Energy

KazMunaiGas Exploration

KazMunayGas

Keller

keller.com

KenolKobil

Key Energy Services

KFG Resources

Kinetex Resources

Kingsland Energy

kingslandenergy.com

KNPC

knpc.com.kw

Koch Minerals & Trading  

kochind.com

Koch Pipeline Services

kochpipelineservices.com

Koko Petroleum

Kootenay Industries

kootenayindustries.com

KPC

kpc.com.kw

Kuwait Oil Company

Kuwait Petroleum

Labrador Technologies

Laredo Petroleum

laredopetro.com

Lariat Energy

Leader Energy Services

Legend Oil & Gas

Lightning Industries

lightningind.com

Lions Gate

grouplionsgate.com

LLOG Exploration

Lonestar Resources

lonestarresources.com

Loon Energy

Lufkin

Lukoil

lukoil.com

Lundin Energy

lundin-energy.com

Lynden Energy

Macro Industries

macroindustries.ca

Magnolia Petroleum

magnoliapetroleum.com

Magnum Energy

Magnum Gas & Power

Magnus Energy

magnusenergy.com.sg

Major Drilling

majordrilling.com

Marathon Oil

marathonoil.com

Marauder Resources East Coast,

MATRRIX Energy Technologies,

Maxim Resources

MB Petroleum Services

mbpetroleum.com

McCoy Global

McDermott  

mcdermott.com

MCW Energy Group

MedcoEnergi

MEG Energy

Mesquite Energy

mesquite-energy.com

Millennium Energy

Mira Resources

Mitchell Services

mitchellservices.com.au

Mitsui & Co.

mitsui.com

MMA Offshore

mmaoffshore.com

MOL

molgroup.info

Monarch Energy

Monarch Gulf Exploration

Mooncor Oil & Gas

MOP Environmental

Morumbi Resources

Mount Dakota Energy

Mountainview Energy

Naftobudowa

Nanalysis Scientific

nanalysis.com

Nation Energy

National Iranian Oil

National Oil & Gas

natloil.com

National Oil Kenya

nationaloil.co.ke

National-Oilwell

Nationwide Utilities

Nautilus Marine Services

nautilusmarineplc.com

Nepal Oil

New Dimension Resources

New Guinea Energy

New Jersey Resources

New West Energy Services,

Newton Energy

Nexen

nexencnoocltd.com

Next Fuel

Nextraction Energy

Nexus Energy Services

NGEx Minerals  

ngexminerals.com

Nizhnekamskneftekhim

nknh.ru

Noble

noblecorp.com

Noble Midstream Partners

nblmidstream.com

Nord Stream

Nordic Oil and Gas

North Atlantic

northatlantic.ca

North Atlantic Drilling

North Springs Resources

Norwest Energy

norwestenergy.com.au

Nu-Oil and Gas

nu-oilandgas.com

NuStar Energy

nustarenergy.com

Nuverra

nuverra.com

NXT Energy Solutions

OBI

obi.com

Obsidian Energy

obsidianenergy.com

Occidental

oxy.com

Oceaneering

oceaneering.com

Octagon 88 Resources

Octant Energy

Oil Search,

OMDA Oil and Gas

ÖMV

omv.com

OMV Petrom

petrom.com

One World Investments

Oracle Energy

Orca Exploration Group

OriginClear

originclear.com

Oryx Petroleum

oryxpetroleum.com

Oyster Oil & Gas

Pacific Coast Oil

Pacific Drilling

pacificdrilling.com

Pacific Paradym Energy

Pacific Rubiales Energy

pacificrubiales.com

Packers Plus Energy Services

Palliser Oil & Gas

Pan African Oil

Pan Orient Energy,

PanTerra Resource

Paradigm Oil and Gas

ParaFin

Paramount Resources

paramountres.com

Paris Energy

Parker Drilling Co.

parkerdrilling.com

Partex

partex-oilgas.com

Passport Energy

Patriot Petroleum

Patterson-UTI

patenergy.com

PBF Energy

pbfenergy.com

Petróleos de Venezuela (PDVSA)

pdvsa.com

Pembina Pipeline

pembina.com

Pemex

Pengerang Integrated Petroleum Complex (PIPC)

jpdc.gov.my

Pennine Petroleum

Penspen

penspen.com

PERENCO

perenco.com

Perkins Oil & Gas

Perpetual Energy

perpetualenergyinc.com

Perusahaan Gas Negara

Petra Energy

petraenergy.com.my

Petrichor Energy,

Petro Canada  

petro-canada.ca

Petroleum Geo-Services (Petro Geo)

Petro One Energy

Petro Vista Energy

PetroBangla

petrobangla.org.bd

Petróleo Brasileiro S.A.

petrobras.com.br

Petrodorado Energy

PetroFrontier

Petrol AD

Petrol Group

Petrolera

petroleraargentina.com.ar

Petroleum Air Services

Petroleum Coke Industries

pcickw.com

Petroleum Wholesale

petroleumwholesale.com

Petrolia

Petrolympic

Petromanas Energy

Petromin Resources

PETRONAS  

petronas.com

Petrosalam

PetroShale

Petrostar Petroleum

Petroteq Energy

PetroValue  

petrovalue.ca

Petrox Resources

Peyto Exploration & Development

peyto.com

PGNiG

en.pgnig.pl

Pharos Energy

pharos.energy

Phoenix Canada Oil

Pine Cliff Energy,

Pioneer Energy

pioneer.ca

Platino Energy

Pledge Petroleum

Point Loma Resources defunct

Poplar Creek Resources

Porto Energy

Power Resource Exploration

Prairie Provident Resources

ppr.ca

PrairieSky

prairiesky.com

Prestige Capital

Primeline Energy

primelineenergy.com

ProAm Explorations

ProPetro

propetroservices.com

Providence Resources

providenceresources.com

PT Lapindo Brantas

Pulse Seismic

Pure Technologies

puretechltd.com

Q Investments

QEP Resources

qepres.com

Quintana Energy Services (QES)

quintanaenergyservices.com

QPD

qpd-jp.com

QS Energy

Quattro Exploration and Production

Questfire Energy

Raimount Energy

Raise Production

raiseproduction.com

Rawson Resources

ReconAfrica

reconafrica.com

Red Oak Mining

Red Pine Petroleum

Redwater Energy

Relentless Resources

Reliance

reliancegroupindia.com

Renaissance Oil

renaissanceoil.com

ReoStar Energy

Ring Energy

ringenergy.com

Riverdale Oil & Gas

Riverstone Energy

riverstonerel.com

RockBridge Resources

Rockefeller Hughes

RockRose Energy  

rockroseenergy.com

Rodinia Oil,

Rosneft

rosneft.com

RPC Gas

rpc.net

Rushmore Reviews

ihsmarkit.com

Saccharum Energy

SAExploration

saexploration.com

Saguaro Holdings

Sahara Energy

Saipem  

saipem.com

Samir

samir.ma

Samoth Oilfield

Santa Fe Petroleum

Saratoga Resources

Saturn Minerals

Schlumberger Software

software.slb.com

Schoeller-Bleckmann

SDX Energy

sdxenergy.com

Seacor Marine Holdings

Seadrill Partners

seadrillpartners.com

Sentry Petroleum

Shaanxi Yanchang Petroleum, state-owned oil & gas

ShaMaran Petroleum  

shamaranpetroleum.com

Shandong Molong Petroleum Machinery Company

Sharpe Resources,

Shogun Capital

Sibur

SilverBow Resources

SilverWillow Energy

Simba Essel

simbaenergy.ca

Sino Gas

sinogasholdings.com

Sinopec Group  

sinopec.com

Sinopec Petrochemical

Sintana Energy

sintanaenergy.com

Sixty Six Oilfield Services

Sky Petroleum

Skye Petroleum

Slovnaft Ceská republika

Smart Chemical

smartchemical.com

Smith Oil

smithoilcorp.com

State Oil Company of the Azerbaijan Republic (SOCAR)

socar.az

Société Nationale des Hydrocarbures

Softrock Minerals

softrockminerals.com

Solimar Energy

Solo Oil

Somalia Petroleum Corporation

Sonair

Sonangol Group, oil and gas reserve management, state-owned

Sonatrach

Sonde Resources,

Sonoro Energy

Southern California Gas

Southern Plains Oil

Spartan Delta

spartandeltacorp.com

Spartan Energy defunct

Spindletop Oil & Gas

spindletopoil.com

SPL

spl-inc.com

SSP Offshore

Stampede Drilling

stampededrilling.com

Standard Exploration

Statesman Resources

Statoil  

statoil.com

Statoil Fuel & Retail

statoilfuelretail.com

Statoil state oil and gas

Stealth Ventures

Steel Reef

steelreef.ca

Stellar AfricaGold

Sterling Energy Resources

Sterling Resources

Stetson Oil & Gas

Stikine Energy

Storengy      

storengy.com

Strata X Energy

Strategic Oil & Gas

Strike Energy

strikeenergy.com.au

Strike Oil & Energy

strikeusa.com

Strikewell Energy

STW Resources Holding

Summus Solutions NV

Sun Oil Group

sunoilgroup.com

Suncor  

Sundance Energy

Sunset Pacific Petroleum

Superior Energy

superiorenergy.com

Surge Energy

Surgutneftegas

Syncrude

syncrude.ca

TAG Oil

Taipan Resources

Tamarack Valley Energy

tamarackvalley.ca

Tamoil

Tanager Energy

Taylor Energy defunct

TC Energy  

tcenergy.com

TechnipFMC  

technipfmc.com

Tellurian

tellurianinc.com

Terpel

Terra Energy

Terra Energy & Resource Technologies

Terra Nova Energy

Terrace Energy

Tesoro

tsocorp.com

Texas Jack Oil & Gas

Texas Oil & Minerals

TexCom

TForce Energy Services

tforceenergy.com

Third Coast Midstream

3cmidstream.com

Tidelands Oil & Gas

Titan Energy

Torchlight Energy

torchlightenergy.com

TotalEnergies

totalenergies.com

TPC

tpco.ir

Trammo

trammo.com

Trans Mountain

transmountain.com

TransAmerican Energy

TransAtlantic Petroleum,

Transeuro Energy

Transocean  

deepwater.com

Traverse Energy

Trek Resources

trekresources.com

Tribute Resources

Trican Well

Trilogy Energy

trilogyenergy.com

TrinCan Capital

TRINITY

trinityexploration.com

Triton American Energy

Trophy Resources

Turner Valley Oil & Gas defunct

Tuscany Energy

UI Energy

Unit Corporation

unitcorp.com

United Energy

United Energy Group

uegl.com.hk

United Refining

urc.com

Universal Resource & Services

US Oil Sands

VAALCO  

vaalco.com

Valero

valero.com

Van Leeuwen

vanleeuwen.com

Vanguard Natural Resources

Vantage Drilling Co.

VARIOmobil

vario-mobil.com

Vast Exploration

Vegas Oil and Gas

Velocity Energy

VersaTech

versatech.com

Vertex Resources

vertex.ca

Viceroy Petroleum

viceroypetroleum.com

Vinergy Resources

Virtus Oil and Gas  

virtusoil.com

Vostok Gas

Vulcan Minerals

vulcanminerals.ca

W&T Offshore

wtoffshore.com

Wavefront Technology Solutions

Wavefront Technology Solutions,

Welltec

Western Midstream  

westernmidstream.com

WesternZagros Resources

White Eagle Exploration

whiteeagleexploration.com

Wild Brush Energy

Wilton Resources

Winalta

WindRiver,

windriver.ca

wood.  

woodplc.com

WPX Energy

wpxenergy.com

Xcite Energy

XFuels

xfuels.co.za

XXL Energy

Yangarra Resources

Yoho Resources

YPF

ypf.com

Yukos Oil defunct

Yuma Energy

yumaenergyinc.com

Zeta Petroleum

zetapetroleum.com

Zion Oil & Gas

zionoil.com