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- PKVerleger LLC
- 3 Legs Resources
- 3D Oil
- 3MV Energy Corp
- 4Gen Energy UK Ltd
- 7S Oil and Gas LLC
- 88 Energy Ltd
- A Frames Exploration LLC
- A-Cap Resources Ltd
- Aabar Investments PJS
- AAG
- AB Klaipedos Nafta
- Aban Offshore
- ABB Group
- Abengoa
- ABG Sundal Collier
- Ability Drilling
- ABN AMRO
- Abraxas Petroleum Corporation
- Acacia Coal Ltd
- Acacia Research Corporation
- Accenture Strategy
- Access Midstream Partners LP
- Acer Energy
- Acorn Energy
- Activa Resources
- ADA Environmental Solutions
- ADAM Houston Energy Network
- Adams Resources & Energy Inc
- Adani Power Ltd
- Adavale Resources Ltd
- Addax Petroleum
- ADI Analytics LLC
- Adira Energy Ltd
- Admiral Bay Resources Inc
- Admiral Permian Resources
- Aduro Resources Ltd.
- Advanced Resources International
- Advantage Oil & Gas Ltd
- Advantagewon Oil
- Advent Energy Ltd
- ADX Energy
- AECOM
- AED Oil Ltd
- Aegion
- AEGIS
- Aemetis, Inc.
- Aeroquest International Ltd
- AES Corporation
- Aethon Energy
- Afren Plc
- Africa Energy Corp
- Africa Hydrocarbons Inc
- Africa Oil Corp
- African Energy Resources Ltd
- African Petroleum Corp
- Agencia Nacional de Hidrocarburos
- Agencia Nacional do Petroleo
- Aggreko PLC
- Agiba Petroleum Company
- Agile Upstream
- AGL Energy
- AGL Resources
- Ai Prime
- AIM Energy Advisors
- AIPN
- Air Products & Chemicals Inc
- AJ Lucas Group Ltd
- Akastor
- Aker ASA
- Aker BP
- Aker Solutions
- AKITA Drilling Ltd
- Alaska Department of Natural Resources
- Alaska Gasline Development Corp
- Alaska Oil & Gas Conservation Commission
- Alberta Oilsands Inc
- AleAnna Resources LLC
- Aleator Energy Ltd
- Alerian
- Algae Tec Ltd
- Algonquin Power & Utilities Corp
- Alice Queen Limited
- AlixPartners
- Alkane Energy
- Allegiance Coal Ltd
- Allegro Development
- Alliance Bernstein
- Alliance Holdings GP LP
- Alliance Oil Co
- Alliance Pipeline
- Alliance Resources Partners L.P
- Alliant Energy Corporation
- Allied Petroleum Exploration Inc
- Alon USA Energy Inc
- Alon USA Partners
- Alpha Natural Resources
- Alphageo India Ltd
- Alston Energy Inc
- Alta Corp Capital
- Alta Mesa Holdings LP
- AltaGas Canada
- AltaGas Ltd
- Altai Resources Inc
- Alter NRG Corp
- Altima Resources Ltd
- Altura Energy Inc
- Altus Midstream
- Alvarez & Marsal
- Alvopetro Inc
- Aly Energy Services Inc.
- Amadeus Energy Ltd
- Amazing Energy Oil & Gas Co
- Ambassador Oil & Gas
- Ambyint USA
- Amec Foster Wheeler
- Amegy Bank
- Amelia Resources
- Ameredev II LLC
- Ameren Corp
- Ameresco Inc
- American Association of Petroleum Geologists
- American Eagle Energy
- American Electric Power
- American Electric Technologies
- American Energy Group
- American Exploration Corp
- American Gas Association
- American Midstream Partners LP
- American Oil & Gas Inc
- American Patriot Oil and Gas
- American Petroleum Institute
- American Resource Corporation
- American Resource Development
- American Sands Energy Corp
- American Shoreline Inc
- American Standard Energy Corp
- American Water
- Americas Petrogas Inc
- AmeriGas Partners LP
- Amerisafe Inc
- Amerisur Resources PLC
- Aminex PLC
- Amplified Geochemical Imaging LLC
- Amplify Energy
- Amplitude Energy
- Amsterdam Petroleum Geoscience
- Amyris, Inc.
- Anadarko Petroleum Corporation
- Analysis Group
- Anatolia Energy
- ANCAP
- Andatee China Marine Fuel Services
- Andeavor Logistics LP
- Anderson Energy Inc
- Anderson King Energy Consultants LLC
- Andes Energia
- Angle Energy Inc
- Anglo Canadian Oil Corp
- Anschutz Exploration Corp
- Antares Energy
- Antero Midstream Partners LP
- Antero Resources
- Anterra Energy Inc
- Antilles Oil and Gas NL
- Antonoil Oilfield Services Ltd
- Antrim Energy Inc
- AON
- APA Group
- Apache Corporation
- Apec Ltd
- Apergy Corporation
- APEX Energy LLC
- Apollo Global Management
- APPEA
- APPEX
- Applied Petroleum Technology Ltd.
- Approach Resources Inc
- APS Technology
- APX Energy LLC
- Aqua-Pure Ventures
- Aqualis Offshore Services
- Arabella Exploration
- Araca Energy
- ARC Financial Corp
- Arc Logistics Partners
- ARC Resources Ltd
- ARCADIS
- Arcadius Capital Partners
- Arcan Resources Ltd
- Arch Coal
- Archaea Energy
- Archer
- Archer Petroleum
- Archrock Inc
- Archrock Partners LP
- Arctic Hunter Energy Inc
- Ardmore Shipping Corporation
- Arena Resources Inc
- Argent Energy Trust
- Argonaut Energy Research
- Argonne National Laboratory
- Argos Resources Ltd.
- Argosy Energy Inc
- Argus Energy Managers
- Argus Media Group
- Aris Water Solutions
- Arkanova Energy Corp
- ARKeX
- ARM Energy
- Armada Oil, Inc
- Armour Energy Ltd
- ARO Drilling
- Aroway Energy Inc
- ArPetrol Ltd
- Array Petroleum
- Arrow Energy
- Arrow Exploration
- Arrowstar Resources Ltd
- Arsenal Energy
- Artek Exploration
- Artisan Energy
- Ascendant Resources
- Ascent Resources PLC
- Ashland
- Asian Insulators Public Company Ltd.
- Aspen Aerogels
- Asset Risk Management, LLC
- Astrum Energy
- AT Kearney
- ATB Financial
- Athabasca Oil Sands Corp
- Athlon Energy Inc
- Atikwa Resources Inc
- Atkins
- Atlantic Energy
- Atlantic Petroleum
- Atlantica Tender Drilling Ltd.
- Atlantica Yield
- Atlas Development & Support Services
- Atlas Energy LP
- Atlas Energy Solutions
- Atlas Sand Company LLC
- Atmos Energy Corp
- ATP Oil & Gas Corp
- Attis Oil & Gas
- Atwood Oceanics Inc
- Aurelian Oil & Gas PLC
- Aurora Exploration LLC
- Aurora Oil & Gas Limited
- AusGroup
- Austex Oil Ltd
- Austin Exploration Inc
- Australian Gas Networks
- Australian Government Department of Resources, Energy & Tourism
- Australian Renewable Fuels Limited
- Australis Oil & Gas
- Avalon Exploration Ltd
- Avangrid Inc
- Avanti Energy Inc
- Aveda Transportation and Energy Services
- AvenEx Energy Corp
- Avenir Diversified Income Trust
- Aveva Inc
- Avista Corp
- AWE Limited
- Awilco Drilling Ltd
- Awilco LNG ASA
- Azabache Energy Inc
- Azimuth Group
- Azinam
- Azinor Catalyst
- AziPac
- Azonto Petroleum Ltd
- Azure Midstream Partners LP
- Azure Power
- B3 Insight
- Badger Daylighting
- Badger Explorer ASA
- Badlands Energy Inc
- Bahamas Petroleum Company
- Bain & Company
- Baker Botts LLP
- Baker Hughes Inc
- BakerHostetler LLP
- Bangchak Petroleum Public Co. Ltd.
- Bank of America Merrill Lynch
- Bankers Petroleum Ltd
- Banpu Public Company Ltd
- Barakah Offshore
- Baralaba Coal Company Limited
- Barclays Capital
- Bard Ventures Ltd
- Barnett Shale Energy Education Council
- BarnHill Energy Resources LLC
- Baron Energy, Inc
- Baron Oil
- BASF
- Bashneft
- Basic Energy Services
- Bass Oil Ltd
- Battalion Oil Corp
- Bayou City Energy Management LLC
- Bayshore Petroleum Corp
- Bayswater Exploration & Production LLC
- Baytex Energy Corp
- Bazan Group Oil Refineries Ltd
- BBVA Compass
- Beach Energy
- Bechtel
- Bedrock Drilling Ltd
- Beerenberg Group
- Belgrave Oil & Gas Corp
- Bellatrix Exploration Ltd
- Belmont Resources Inc
- Benchmark Energy Corp
- Benefit Street Partners LLC
- Bengal Energy Ltd
- Bennu Oil & Gas
- Bentek Energy
- Bergen Group
- Berkana Energy
- Berkeley Research Group LLC
- Berkley Renewables Inc
- Berlanga Myanmar Pte
- Berry Petroleum Co
- Best Energy Services Inc
- BetaZi LLC
- Beveridge & Diamond PC
- BG Group
- Bharat Petroleum Corporation
- BHP Billiton Ltd
- Big Sky Petroleum
- Big Star Energy
- Bight Petroleum
- Bill Barrett Corp
- BIOX Corporation
- Birch Lake Energy Inc
- Birchcliff Energy Ltd
- Bison Oil & Gas
- Bison Pipeline LLC
- BJ Services
- BKV Corporation
- Black Hills Corp
- Black Knight Energy LLC
- Black Mountain Energy
- Black Mountain Sand
- Black Ridge Oil & Gas
- Black Star Petroleum Ltd
- Black Stone Minerals LP
- Black Swan Energy
- Blackbird Energy Inc
- BlackBrush Oil & Gas LP
- Blackhawk Resource Corp
- BlackPearl Resources
- Blacksands Petroleum Inc
- Blackstar Petroleum
- Blacksteel Energy Inc
- Blackstone Group
- Blake Oil & Gas Ltd
- Bloom Energy Corp
- Bloomberg News
- Blue Dolphin Energy Co
- Blue Energy Ltd
- Blue Horizon Industries Inc
- Blue Marble Geographics
- Blue Racer Midstream
- Blue Ridge Mountain Resources
- Blue Sky Energy Inc
- Blue Star Helium Ltd
- Blue Whale Energy
- BlueFire Renewables
- Bluehenge Capital Management LLC
- Blueknight Energy Partners
- BMB Munai Inc
- BMO Financial Group
- BNK Petroleum Inc
- BNP Paribas
- BNP Resources Inc
- Boardwalk Pipeline
- Boart Longyear
- BOEM
- BOK Financial Securities
- Bonanza Creek Energy
- Bonavista Energy Corp
- Bonheur ASA
- Bontan Corporation
- Bonterra Energy Corp
- Boomtown Oil
- Boots & Coots Services
- Booz Allen Hamilton
- Boralex Inc
- Border Petroleum Ltd
- Borders & Southern Petroleum PLC
- Borr Drilling
- Boskalis
- Boss Resources Ltd.
- Boulder Energy Ltd
- Bounty Oil & Gas NL
- Bourbon SA
- Bow Energy Ltd
- Bow Energy Pty Ltd
- Bowleven Oil & Gas
- BP plc
- BPZ Energy Inc
- Brandenburg Energy
- Brasoil
- BreitBurn Energy Partners LP
- Breitling Energy
- Bri-Chem Corp
- Bridgeport Energy
- Bridgeporth
- Brigham Exploration Co
- Brigham Minerals
- Bright Horizon Resources LLC
- Brightoil Petroleum
- Briko Energy Corp
- Bristow Group
- Broadview Energy Ltd
- Bronco Energy Ltd
- Brookfield Asset Management
- Brookfield Renewable Energy Partners
- Brookside Energy Ltd
- Brownstein Hyatt Farber Schreck LLP
- Brownstone Energy Inc
- BRS Resources Ltd
- Bruin E&P Partners
- BTU Analytics
- Buccaneer Energy
- Buckeye Partners LP
- Bucking Horse Energy Inc
- Bukit Energy Inc
- Bureau of Safety and Environmental Enforcement
- Bureau Veritas
- Burleson Energy Ltd.
- Burleson LLP
- Burrow Global
- Buru Energy Ltd
- Butte Energy
- BW Energy
- BW Ideol
- BW Offshore
- Byron Energy Ltd
- C&C Energia Ltd
- C&J Energy Services Inc
- Cabot Corp
- Cabot Energy Plc
- Cabot Oil & Gas Corp
- Cabra Consulting Ltd
- Cactus Inc
- Cadence Bank
- Cadogan Petroleum
- Caerus Oil & Gas LLC
- Caiman Energy
- Cairn Energy Partners
- Cairn Energy Plc
- Cairn India
- Caiterra International Energy Corporation
- Caithness Petroleum
- Cal Dive International Inc
- Calfrac Well Services Ltd
- Calgary Global Exploration Forum
- California Independent Petroleum Association
- California Resources Corp
- Calima Energy
- Callon Petroleum Co
- Calmena Energy Services Inc
- Caltex
- Calumet Specialty Products Partners L.P
- Calvalley Petroleum Inc
- Camber Energy Inc
- Cameco Corp
- Cameron
- Camino Natural Resources
- Canaan Resource Partners
- Canaccord Genuity
- Canacol Energy Ltd
- Canada Energy Partners Inc
- Canada-Newfoundland & Labrador Offshore Petroleum Board
- Canada-Nova Scotia Offshore Petroleum Board
- Canadian Association of Oilwell Drilling Contractors
- Canadian Association of Petroleum Landmen
- Canadian Association of Petroleum Producers
- Canadian Energy Research Institute
- Canadian Energy Services Corp
- Canadian Foresight Group Limited
- Canadian Global Exploration Forum
- Canadian Imperial Bank of Commerce
- Canadian Imperial Venture Corp
- Canadian Natural Resources Ltd
- Canadian Oil Recovery & Remediation Enterprises Ltd
- Canadian Oil Sands Ltd.
- Canadian Overseas Petroleum Ltd
- Canadian Quantum Energy Corp
- Canadian Society for Unconventional Resources
- Canadian Solar
- Canadian Spirit Resources Inc
- Canadian Superior Energy Inc
- Canadian Utilities Limited
- Canamax Energy Ltd
- Canbriam Energy Inc
- CanCambria Energy Corp
- Candax Energy Inc
- CanElson Drilling Inc
- CanGas Solutions
- Cano Petroleum Inc.
- CanRock Energy Corp
- Canuc Resources Corp.
- Canvas Energy Inc
- Canyon Creek Energy
- Canyon Oil & Gas Ltd
- Canyon Services Group
- Cap Energy Plc
- Cape Plc
- Capital Energy Read S.L.
- Capital One Commercial Banking Group
- Capital Power Corp
- Capital Product Partners LP
- Caprock Oil
- Capstone Headwaters LLC
- Caracal Energy Inc
- Carbo Ceramics Inc
- Carbon Energy Corporation
- Carbon Energy Ltd
- Carbon Natural Gas Company
- Cardiff Energy Corp
- Cardinal Energy Group, Inc.
- Cardinal Energy Ltd
- Cardinal Ethanol LLC
- Carnarvon Petroleum Ltd
- Carnelian Energy Capital
- Carrier Energy Partners
- Carrizo Oil & Gas Inc
- CASA Exploration
- Casa Sumi Petroleum LLC
- Casillas Petroleum
- Caspian Energy Inc
- Caspian Services Inc
- Caspian Sunrise
- Cassandra Oil
- Castell Oil Co
- Castleton Commodities International LLC
- Castleton Resources LLC
- Caterpillar Inc
- Cathedral Energy Services Income Trust
- Cauldron Energy Ltd
- Cavalier Energy Inc
- Caverton Offshore Support Group
- Cavvy Energy
- Caza Oil & Gas Inc.
- CB&I
- CBM Asia Development Corp
- CBO Capital
- CCMP Capital Advisors LLC
- CE Franklin Ltd
- CEIBA Energy Services Inc
- Celtic Exploration Ltd
- Celtique Energie
- CEMIG
- Cenovus Energy Inc
- Centennial Resource Development Inc
- Center for Sustainable Shale Development
- CenterPoint Energy
- Central Petroleum Ltd
- Centre for Global Energy Studies
- Centrica
- Centuri Group
- Century Energy Ltd
- Cequence Energy Ltd
- CES Energy Solutions Corp
- CF Energy Corp
- CGG
- CGX Energy Inc
- CH2M Hill
- Chalker Energy Partners
- Challenger Energy Corp
- Challenger Energy Ltd.
- Chambers Energy Capital
- Champion Lone Star Partners LLC
- ChampionX
- Chaparral Energy Inc
- Charger Energy Corp
- Chariot Oil & Gas
- Chart Industries
- CHC Group
- Check-6
- Cheetah Oil and Gas Ltd
- Chelsea Oil & Gas
- Chemical Market Associates Inc
- Cheniere Energy Inc
- Cheniere Energy Partners LP
- Chennai Petroleum Corp Ltd
- Chesapeake Energy Corp
- Chesapeake Utilities Corp
- Chesterfield Special Cylinders PLC
- Chevron Corp
- Chief Oil & Gas
- China Aviation Oil Corporation
- China Clean Energy Inc.
- China Gas Holdings Ltd.
- China Integrated Energy, Inc.
- China National Petroleum Corp
- China New Energy Ltd
- China Oil & Gas Group Ltd
- China Oilfield Services
- China Rerun Chemical Group Ltd
- China Suntien Green Energy Corp Ltd
- Chinook Energy Inc
- Chiron Financial LLC
- Chisholm Energy
- Chiyoda Corporation
- Chord Energy
- CHS Inc
- Cimarex Energy Co
- CIOC
- Circle Oil PLC
- Circle Star Energy
- Cirque Resources LP
- CIT Energy
- Citadel Exploration Inc
- Citation Resources
- Citigroup
- Citrus Energy Corporation
- Civitas Resources Inc
- Civmec Ltd.
- Claren Energy Corp
- Clariant
- Clarion Offshore Partners LLC
- Classical Principles
- Clayton Williams Energy Inc
- Clean Energy Fuels Corp
- Clean Harbors Inc
- Clearview Resources Ltd
- Clearway Energy Inc
- Clontarf Energy PLC
- Clough Engineering
- CLSA
- Cluff Natural Resources
- CMS Energy
- CNOOC
- CNOOC Canada Inc
- CNWL Oil Espana SA
- CNX Midstream Partners LP
- CNX Resources Corporation
- Coal of Africa Limited
- Coalspur Mines Ltd
- Coastal Energy Co
- Cobalt International Energy
- Coelacanth Energy Inc
- Cold Bore Technology
- Colgate Energy
- Colorado Renewable Energy Collaboratory
- Colorado School Of Mines
- Columbia Pipeline Group
- Columbia University
- Columbus Energy Resources
- Comet Ridge Ltd
- Comgas
- Comitt Well Solutions
- Commander Resources Ltd
- Compact GTL
- Compania Logistica de Hidrocarburos
- Compass Petroleum Ltd
- Complete Production Services
- Compton Petroleum Corp
- Comstock Resources Inc
- Cona Resources
- Concerned InterOil Shareholders
- Concho Resources Inc
- Concordia Maritime AB
- Condor Petroleum Inc
- Cone Midstream Partners LP
- Connacher Oil and Gas Ltd
- ConocoPhillips
- Consol Energy
- Consolidated Edison Inc
- Constellation Energy Commodities Group
- Contango Oil & Gas
- Continental Coal Ltd
- Continental Resources Inc
- Control Risks
- Convey Energy Consultants
- Cooper Energy
- Copano Energy LLC
- Copel
- Copper Creek Gold Corp.
- Cordillera Energy Partners LLC
- Core Laboratories
- Core Natural Resources
- Corenergy Infrastructure Trust Inc
- Coretrack Ltd
- Coro Energy
- Corridor Resources Inc
- Cosan SA Industria e Comercio
- Cosco Capital, Inc
- Cosmo Oil Co Ltd
- Coterra Energy Inc
- Cott Oil & Gas
- Couche-Tard
- CourthouseDirect.com
- Cove Energy PLC
- Covey Park Energy
- Covia Corp
- Cowen & Company
- CP Exploration
- Craft Exploration Company
- Credit Agricole CIB
- Credit Suisse
- Credo Petroleum Corp
- Crescent Energy
- Crescent Petroleum
- Crescent Point Energy Corp
- Crestal Petroleum Ltd
- Crestone Peak Resources
- Crestwood Equity Partners LP
- Crestwood Midstream Partners
- Crew Energy Inc
- Crimson Exploration Inc
- Crimson Resources LLC
- Crocotta Energy Inc
- CropEnergies AG
- Cross Border Resources
- Crossamerica Partners LP
- Crosstex Energy LP
- Crow Creek Energy LLC
- Crown Point Energy Inc
- Crownquest Operating LLC
- Crudecorp ASA
- CSI Compressco LP
- CSI Recruiting
- CST Brands Inc
- Cub Energy Inc
- Cubic Energy Inc
- Cuda Oil & Gas
- Cue Energy Resources Ltd
- Cuesta Coal Ltd
- Culane Energy Corp
- Cumberland Oil & Gas Ltd
- Cunningham Natural Resources Corp
- Curlew Lake Resources Inc
- Curtin University
- Cushing MLP Asset Management
- CVR Energy
- CVR Partners LP
- CVR Refining LP
- CWC Well Services
- Cygam Energy Inc
- Cypress Energy Partners LP
- Cyprus Oil & Gas Association
- d'Amico International Shipping
- Daewoo Shipbuilding & Marine Engineering
- Dakota Energy Advisors
- Dakota Plains Holdings Inc
- Daldrup & Söhne
- Daleco Resources Corp
- Dana Energy Co
- Dana Gas
- Dana Petroleum
- Daniel Energy Partners
- Daniel Johnston & Co Inc
- Danish Energy Agency
- Dart Energy
- Datapages Inc
- Dawson Geophysical
- Daybreak Oil & Gas
- DCP Midstream LLC
- DCP Midstream Partners, LP
- DDD Exploration Inc
- DE Shaw & Co
- DEA Deutsche Erodel AG
- Deep Blue
- Deep Down Inc
- Deep Fission
- Deep Gulf Energy LP
- Deep Industries Ltd
- Deep Isolation Nuclear Inc
- Deep Well Oil & Gas Inc
- Deepocean Group
- DeGolyer and MacNaughton
- Del Mar Exploration
- Delek Group
- Delek Logistics Partners LP
- Delek US
- Deleum
- Delfin LNG LLC
- Delft Inversion
- Deloitte
- Delphi Energy Corp
- Delta Energy Ltd
- Delta SubSea
- Deltic Energy
- Denali Oil & Gas
- Denbury Resources Inc
- Denham Capital
- Dentons
- Department of Energy
- Department of Energy & Climate Change
- Desert Peak Minerals
- Desire Petroleum PLC
- Desmarais Energy Corp
- Detring Energy Advisors
- Deutsche Bank
- Devon Energy Corp
- DHT Holdings, Inc
- Dialog Group Berhad
- Diamond Offshore Drilling Inc
- Diamondback Energy
- Diaz Resources Ltd
- Dietswell
- Digital H2O
- DigitalGlobe
- Discover Exploration Ltd
- Discovery Energy Corp
- Discovery Natural Resources
- Distribution NOW
- Divergent Energy Services
- Diversified Energy Company
- Diversified Gas & Oil
- Divestco Inc
- DJR Energy LLC
- DNB
- DNO
- DNV GL
- DOF ASA
- DOF Subsea
- Dogan Holding
- Dolphin Drilling
- Dolphin Offshore Enterprises India Ltd
- Dome Energy
- Dominion Energy
- Dominion Energy Midstream Partners LP
- Dong Energy Ltd
- Donkel Oil & Gas
- Donnycreek Energy Inc
- Dorchester Minerals
- Dorian LPG
- Douglas-Westwood
- Dover Corp
- Dow Chemical Company
- DowDuPont
- Downhole Chemical Solutions
- DownUnder GeoSolutions
- Doxa Energy Ltd
- Doyon Ltd
- DPL Inc
- Dragon Oil
- Dragonfly Energy
- Dresser-Rand Group Inc
- Dril-Quip Inc
- Drilling Tools International
- DrillingInfo
- Drillinginfo Energy Strategy Partners
- Drillmec
- Drillsearch Energy
- DryShips Inc.
- DT Midstream Inc
- DTE Energy
- DTEK Energy
- Ducera Partners LLC
- DUET Group
- Duke Energy
- Dundee Energy Limited
- Dune Energy Inc
- DuPont
- DXI Energy Inc
- Dyna-Mac Holdings Ltd.
- Dynagas LNG Partners LP
- Dynamic Materials Corp
- Dynasty Resources Ltd
- Dynex Energy
- E-T Energy
- E.ON AG
- E.Vironment
- Eagle Energy Exploration LLC
- Eagle Energy Inc
- Eagle Materials
- Eagle Oil & Gas Co
- Eagle Rock Energy Partners
- Eagle Star Minerals
- EagleClaw Midstream
- Eagleford Energy Inc.
- Eaglewood Energy Inc
- Earthstone Energy Inc
- East Daley Capital
- East Energy Resources Ltd
- East West Bank
- East West Petroleum Corp
- EBN
- Echo Energy plc
- Eclipse Resources
- Eco Atlantic Oil & Gas
- Ecopetrol
- EcoStim Energy Solutions
- Eden Energy
- Edge Natural Resources LLC
- EdgeMarc Energy Holdings LLC
- Edgen Group
- Edison International
- Edison SpA
- EDP Renewables
- EFLO Energy, Inc.
- Efora Energy
- Egdon Resources PLC
- Egyptian Natural Gas Holding Company
- EIA-Energy Information Administration
- Eiffage
- EIG Global Energy Partners
- El Paso Corporation
- El Paso Pipeline Partners LP
- Eland Oil & Gas Plc
- Elevation Resources
- Elixir Energy
- Elixir Petroleum Ltd
- Elk Meadows Resources LLC
- Elk Petroleum
- Elnusa
- Ely & Associates Inc.
- Ember Resources Inc
- EmberClear Corp
- Emcor Group Inc
- Emera Inc
- Emerald Bay Energy Inc
- Emerald Resources NL
- Emerge Energy Services
- Emerson
- EMGS
- Emperor Energy Limited
- Empire Energy Corp International
- Empire Energy Group Ltd
- Empire Oil & Gas NL
- Empire Petroleum
- Empire State Oil & Gas Information System
- Empresa Energy LLC
- Empresa Nacional del Petróleo
- Empresas Copec
- Empyrean Energy PLC
- EMS USA Inc
- Enable Midstream Partners
- Enagas
- Enaxis Consulting
- Enbridge Energy Partners
- Enbridge Inc
- Enbridge Income Fund Holdings Inc
- Encana Corporation
- EnCap Investments L.P.
- Encore Energy Partners
- EnCore Permian
- Endeavor Energy Resources LP
- Endeavor Natural Gas
- Endeavour International Corp
- EndevCo Inc
- Enduring Resources LLC
- Enduro Royalty Trust
- Enel
- Enel Chile S.A.
- EnerCom Incorporated
- Enerflex Ltd.
- Energean Oil & Gas
- Energen Resources Corp
- Energistics
- Energold Drilling Corp
- Energulf Resources Inc
- Energy & Infrastructure Capital
- Energy & Infrastructure Mexico
- Energy & Technology Corp
- Energy Capital Research Group
- Energy Capital Solutions
- Energy Credit Monitor LLC
- Energy Directions Inc
- Energy Fuels
- Energy House Holding Co.
- Energy Hunter Resources Inc
- Energy Intelligence Group
- Energy Policy Research Foundation Inc
- Energy Prospectus Group
- Energy Recovery Inc
- Energy Spectrum Capital
- Energy Transfer Partners
- Energy World Corp Ltd
- Energy XXI Gulf Coast Inc
- Energy XXI Ltd
- EnergyNet
- EnerJex Resources
- Enerplus Resources Fund
- EnerVest
- Engie
- Engineers India Ltd
- ENGlobal Corp
- ENI S.p.A.
- Enkon Energy Advisors
- EnLink Midstream
- ENMC
- ENN Energy Holdings Ltd
- Enogex
- Enphase Energy Inc
- EnPro Industries Inc
- EnQuest
- ENSCO Offshore Co Inc
- EnscoRowan
- Enseco Energy Services
- Enservco Corporation
- Ensign Energy Services Inc
- Entek Energy Ltd
- Enteq Upstream
- Entergy Corp
- Enterprise Energy Resources Ltd
- Enterprise Group Inc
- Enterprise Products Partners LP
- Entoro International LLC
- ENTREC
- Entreprise Tunisienne d'Activites Petrolieres
- EnVen Energy Corporation
- Envoi
- EOG Resources Inc
- EON Resources Inc
- EP Energy
- Epic Eenergy Resources
- EPL Oil & Gas Ltd
- Epsilon Energy Ltd
- EQM Midstream Partners
- EQT Corp
- EQT Midstream Partners
- Equal Energy Ltd
- Equate Petrochemical
- Equator Exploration
- Equinor
- Equitrans Midstream Corp
- ERG SpA
- ERHC Energy Inc
- Erickson Air-Crane Inc
- Erin Energy Corp
- ERM Power Ltd
- Ernst & Young
- Escalera Resources Co
- Eschelon Advisors
- Escondido Resources
- Esrey Energy Ltd
- Esri
- ESS Funds
- ESSAR Oil Ltd
- Essar Ports Ltd
- Essential Energy Services
- Esso Thailand
- Estrella International Energy Services Ltd.
- Ethane Pipeline Income Fund
- Etrion Corp
- Eurasia Drilling Company Ltd
- Eurasian Dynamics Ltd
- Eureka Midstream LLC
- Eurogas International Inc
- Euromax Resources
- Euronav
- Europa Oil & Gas PLC
- European Gas Ltd
- EV Energy Partners
- Evercore Partners
- EverGen
- Evergy Inc
- Eversource Energy
- Evolution Petroleum Corp
- Evolution Well Services
- Exall Energy Corp
- Excelerate Energy Inc
- Excelsior Energy Ltd
- EXCO Resources Inc
- Exelon Corp
- ExL Petroleum Management LLC
- Exmar
- Exoma Energy
- Expand Energy Corp
- Expro Group
- Exterran
- Extraction Oil & Gas
- ExxonMobil Corp
- Ezion Holdings Ltd
- Ezra Holdings Ltd
- Facts Global Energy
- Fairfield Energy
- Fairfield Nodal
- Fairmount Santrol
- Fairwest Energy Corp
- Falcon Minerals Corp
- Falcon Oil & Gas Ltd
- Falkland Oil & Gas Ltd
- Far East Energy Corp
- FAR Limited
- Faroe Petroleum
- Farstad Shipping ASA
- Fastnet Oil & Gas Plc
- Federal Energy Regulatory Commission
- Federal Republic of Somalia
- Federal Reserve Bank of Dallas
- Ferrell Oil Company
- Ferrellgas Partners LP
- Fieldwood Energy
- Fifth Creek Energy
- Finder Exploration
- Firestone Energy Ltd
- First Citizens Bancshares Inc
- First Gen Corp
- First Hydrocarbon Nigeria
- First Mountain Exploration Ltd
- FirstEnergy Corp
- Fitch Ratings
- Fitzroy River Corporation Ltd.
- Fleur de Lis Energy LLC
- Flex LNG Ltd
- Flint Energy Services Ltd
- Flint Hill Resources Ltd
- Floridian Natural Gas Storage Company
- Flotek
- Flowco Productions Solutions
- Flowserve Corp
- Fluor
- FMC Corp
- FMC Technologies Inc
- Foothills Exploration Inc
- Foothills Resources Inc
- Foraco International
- Forbes Energy
- Forent Energy Ltd
- Foresight Energy LP
- Forest Gate Energy Inc
- Forest Oil Corp
- Forestar Group
- Forge Energy
- Fortaleza Energy inc
- Forte Oil Plc
- Fortis Energy Services Inc
- Fortis Inc
- FortisBC Inc
- Fortum
- Fortuna Resources LLC
- Forum Energy Technologies
- Fosmax LNG
- Foster Wheeler
- Fountain Quail Water Management
- Fourpoint Energy
- Fox Resources Ltd
- Fracture ID
- Fram Exploration
- Franco-Nevada Corporation
- Frank's International
- Fred.Olsen Energy ASA
- Freedom Oil & Gas Ltd
- Freehold Royalties Ltd
- Freeport LNG
- Freeport-McMoRan Inc
- Fremont Petroleum Corp
- Frogtech Geoscience
- Front Range Resources Ltd
- Frontera Energy Corp
- Frontera Resources Corp
- Frontier Energy Services LLc
- Frontline Ltd.
- Frost & Sullivan
- FTI Consulting Inc
- FTS International
- FuelCell Energy Inc
- Fugro
- Fuji Oil Company, Ltd.
- Fundare Resources Company LLC
- Future Metals
- FX Energy Inc
- G2 Integrated Solutions
- G3 Exploration
- Gaffney, Cline & Associates
- GAIL (India) Limited
- Gale Force Petroleum Inc
- Galicia Energy Corporation Ltd
- Galilee Energy Ltd
- Galileo Petroleum Ltd
- Gallic Energy Ltd
- Galp Energia
- Galway Group
- Gary Permian LLC
- Gas Malaysia
- Gas Natural Fenosa
- Gas Plus
- Gas Processors Association
- Gas Technology Institute
- Gas2Grid Limited
- GASFRAC Energy Services Inc.
- Gaslog Ltd
- GasLog Partners
- Gassco
- Gastar Exploration Inc
- Gastem Inc
- Gateway Energy Corp
- Gazprom
- Gazprom Neft
- GB Energy Ltd.
- GC Rieber
- GCP Capital Partners LLC
- GE
- GE Plan Consulting
- GE Vernova Inc
- Gear Energy
- Genel Energy
- General Maritime Corp
- Genesis Energy LP
- Genesis Energy Ltd
- Genoil Inc
- Genovation Capital Corp
- Genting Oil & Gas Ltd
- Geochemical Solutions International
- Geodrill Ltd
- Geofizyka Torun S.A.
- GeoGlobal Resources Inc
- Geognostics
- GeoKinetics
- Geology Without Limits
- Geomage
- Geomark Exploration Ltd
- GeoMet Inc
- GeoPark
- Geopoint Advisory Ltd
- GeoResources Inc
- Geospace Technologies
- Geothermal Resources
- GEPlan Consulting
- Getech Group PLC
- Gevo Inc
- Ghana National Petroleum Corporation
- Gibson Dunn & Crutcher LLP
- Gibson Energy Inc
- GL Noble Denton
- Glencore Xstrata plc
- Glendale Energy Capital LLC
- Global Energy Consultants Ltd
- Global Energy Development PLC
- Global Energy Ventures Ltd
- Global Geophysical Services
- Global Hunter Securities
- Global Natural Resource Investments
- Global Pacific & Partners
- Global Partners LP
- Global Petroleum Ltd
- Glori Energy
- GMP Securities
- GMS
- GMT Exploration Co
- GOL Offshore
- Golar LNG Ltd
- Golar LNG Partners
- Golden Cariboo Resources Ltd.
- Goldman Sachs
- Goldnev Resources Ltd
- Goodrich Petroleum Corporation
- Gordon Creek Energy Inc
- Govenment of Canada
- Government of Alberta
- Government of South Australia
- Government of Western Australia
- GPA Midstream Association
- GR Energy Services
- GR Engineering Services Ltd
- Gradiant Energy Services
- Gran Tierra Energy Inc
- Grand Gulf Energy Ltd
- Granite Construction
- Granite Oil Corp
- Granite Ridge Resources
- Grayson Mill Energy
- Great Eastern Energy Corporation
- Great Plains Energy Corp
- Great Western Oil & Gas Company
- Greece Ministry of Environment Energy & Climate Change
- Green Dragon Gas Ltd
- Green Plains
- Greencastle Resources Ltd
- Greenfields Petroleum Corporation
- Greenflare Technology
- GreenHunter Resources Inc
- Greenland BMP
- Greenland Gas & Oil Plc
- Greenvale Energy Ltd
- Greylock Energy
- Greystone Oil & Gas LLP
- Greystone Petroleum LLC
- Grizzly Energy LLC
- Grizzly Oil Sands
- GroundMetrics
- GrowMax Resources Corp
- GRTgaz
- Grupa Lotos SA
- Grupo Energia de Bogota
- GS Holdings
- GSO Capital Partners
- GSP
- Guggenheim Partners
- Guide Exploration Ltd.
- Gulf International Services
- Gulf Island Fabrication
- Gulf Keystone Petroleum Ltd
- Gulfmark Offshore
- Gulfport Energy Corp
- Gulfsands Petroleum
- GulfSlope Energy Inc
- Gustavson Associates LLC
- Guyana Ministry of Natural Resources
- H2O Midstream
- Hague and London Oil Plc
- Halcon Resources
- Hallador Energy Co.
- Halliburton
- Handal Resources
- Handley Surveys
- Hannam & Partners
- Hannon Westwood
- Hansa Hydrocarbons
- Harbinger Group Inc.
- Harbour Energy
- Hardy Oil & Gas PLC
- Harris Interactive
- Hart Energy
- Harvest Natural Resources Inc
- Harvest Oil & Gas Corp
- Harvest Operations Corp
- Hathaway
- Havila Shipping ASA
- Hawaiian Electric Industries Inc
- Hawk Exploration Ltd
- Hawkley Oil & Gas
- Hawkwood Energy
- Haynes & Boone
- HBA Offshore
- Headwater Exploration Inc
- HEAL System
- Heavy Earth Resources
- Heikkinen Energy Advisors LLC
- Hein & Associates
- Helios Energy
- Helium One
- Helix Energy Solutions Group Inc
- Hellenic Petroleum
- Helmerich & Payne Inc
- Hemisphere Energy Corp
- Henry Resources
- Herbert Smith Freehills
- Hercules Offshore Inc
- Heritage Oil Ltd
- Hess Corporation
- Hess Midstream
- Heurtey Petrochem
- Heyco Energy Group Inc
- HF Sinclair Corp
- Hi Crush Partners LP
- Hibernia Resources
- Hibiscus Petroleum
- High Arctic Energy Services Inc
- High North Resouces Ltd
- Highlands Natural Resources
- HighPeak Energy
- HighPoint Resources
- Highwood Asset Management Ltd
- Highwood Oil Co
- HII Technologies
- Hiland Partners LP
- Hilcorp Energy Company
- Hillcrest Petroleum Ltd
- Hillcrest Resources Ltd
- Hilong Holding Ltd.
- HIMA
- Hindustan Oil Exploration Company
- Hindustan Petroleum Corp Ltd
- HKN Inc
- HNR Acquistion Corp
- Hoegh LNG Partners LP
- Hogan Lovells LLP
- Holly Energy Partners
- Honeywell Process Solutions
- Honghua Group
- Hoover Energy Partners LP
- Horizon North Logistics Inc
- Horizon Oil Ltd
- Horizon Petroleum Ltd
- Hornbeck Offshore Services Inc
- Houlihan Lokey
- Houston American Energy Corp
- Howard Energy Partners
- HPPE Corp
- HPS Investment Partners LLC
- HSE Integrated
- Hugh Fraser International
- Hunt Oil Company
- Hunter Group
- Hunter Oil Corp
- Hunting PLC
- Huntington Exploration Inc
- Huntsman Corporation
- Hurricane Energy
- Husky Energy
- Hydralift RMOW
- Hydril
- Hydro One Limited
- Hydrocarb Energy Corporation
- HydroCarbon Capital
- HydroDec Group PLC
- Hydrozonix
- Hyperdynamics Corp
- Hyperion Exploration Corp
- Hyundai Heavy Industry Co
- i3 Energy PLC
- Iberdrola
- Iberiabank Corp
- Icahn Enterprises LP
- ICF International
- ICIS
- Icon Energy Ltd
- Icon Offshore
- IDACORP Inc
- Idaho Natural Resources Corp
- Idemitsu Kosan Co, Ltd
- IEnova
- IEV Group
- IG Seismic Services
- IGas Energy
- IHI Corp
- IHS Markit
- Ikkuma Resources Corp
- Ikwezi Mining Ltd
- iLEX Energy Partners
- Imdex Limited
- Imersion Global Inc
- Impact Oil & Gas
- Imperial Capital
- Imperial Oil
- INA-Industrija nafte d.d.
- Incremental Oil & Gas Ltd
- Indago Energy Ltd
- Independence Contract Drilling
- Independent Oil & Gas PLC
- Indian Energy Sector
- Indian Oil
- Indico Resources Ltd
- Indigo Exploration Inc.
- Indigo Minerals LLC
- Indraprastha Gas Limited
- Indus Energy NL
- Inergy LP
- Inergy Midstream LP
- Infill Thinking
- Infinity Energy Resources
- Infinity Natural Resources
- Inflection Energy LLC
- Infosys Ltd
- InfraStrata PLC
- ING Capital LLC
- INGAA Foundation
- Innergex Renewable Energy Inc
- INNEX Energy
- Innovatec
- Innovation Norway
- INPEX Corporation
- InPlay Oil Corp
- Insignia Energy Inc
- Institute for Energy Research
- Institute for the Analysis of Global Security
- Institute of World Economics and Politics
- Instituto Nacional de Petroleo
- Integra
- Integrated Energy Services Inc.
- Integrated Environmental Technologies Ltd
- Integrated Informatics Inc
- Integrys Energy Group
- Inter Pipeline Ltd
- InterMoor
- International Association of Drilling Contractors
- International Association of Geophysical Contractors
- International Energy Agency
- International Finance Corporation
- International Frontier Resources Corp
- International Gas Union
- International Petroleum
- International Petroleum Corp
- International Petroleum LLC
- InterOil Corp
- InterOil Exploration & Production ASA
- Interpose Holdings Ltd
- Intertek Group plc
- Intervention Energy LLC
- Intra Energy Corporation Ltd
- Invicta Energy Corp
- Invictus Energy Ltd
- Iofina PLC
- IOG Capital LP
- ION Geophysical Corp
- Iona Energy Inc
- IPAA
- IPB Petroleum Ltd
- IPC Oil & Gas Holdings Ltd.
- Ireland Dept of Communication, Energy & Natural Reources
- Iron Bridge Resources Inc
- Ironhorse Oil & Gas Inc
- Ironman Energy Capital LP
- ISIS Petroleum Consultants
- Iskander Energy
- Island Drilling
- ISOR Iceland Geosurvey
- Israel Opportunity Energy Resources Lp
- Ithaca Energy Inc
- ITOCHU Corporation
- Ivanhoe Energy Inc
- Jacka Resources Ltd
- Jacobs Engineering Group Inc
- Jadestone Energy Inc
- Jagged Peak Energy
- Japan Oil Gas & Metals National Corporation
- JAPEX
- Jatenergy Ltd
- Jefferies
- Jericho Energy Ventures
- Jersey Oil & Gas
- Jetta Permian
- JKX Oil & Gas PLC
- John S. Herold, Inc.
- Johnson Rice & Co
- Jonah Energy LLC
- Jones Energy
- Jordan Ministry of Energy and Mineral Resources
- Journey Energy Inc
- JP Energy Partners
- JP Morgan Chase
- JSI Services Ltd
- Junex Inc
- Jupiter Energy Ltd
- JXTG Holdings Inc. (Nippon Oil Corp)
- K-SEA Transportation Partners
- Kairiki Energy Ltd
- Kaiser-Francis Oil Co
- Kalnin Ventures
- Karoon Gas Australia Ltd
- Kayne Anderson Capital Advisors
- KazMunaiGas Exploration Production
- KazMunayGas
- KazPetroDrilling
- KBC Advanced Technologies
- KBR Inc
- KCA Deutag
- Kea Petroleum PLC
- Keane Group
- Kelley Drye & Warren LLP
- Kelt Exploration
- KenolKobil Ltd.
- Kentz
- Keppel Corporation
- Kern Partners Ltd.
- Kern River Gas Transmission Co
- Kerogen Capital
- Kerogen Consultants
- Kerogen Exploration LLC
- Key Energy Services Inc
- Key Petroleum Ltd
- KeyBanc Capital Markets Inc
- Keyera Corp.
- KFG Resources Ltd
- Kicking Horse Energy Inc
- Kimbell Royalty Partners LP
- Kimmeridge Energy
- Kina Petroleum Ltd
- Kinder Morgan
- Kinetik
- Kinetiko Energy Ltd
- Kingfisher Midstream LLC
- Kiwetinohk Energy
- KKR & Co LP
- KLX Energy Services
- Knot Offshore Partners LP
- Knowledge Reservoir
- Koch Supply & Trading LP
- Kodiak Gas Services
- Kodiak Oil & Gas Corp
- Kolibri Global Energy Inc
- Kootenay Energy Inc
- Korea Gas Corporation
- Korn Ferry International
- Kosmos Energy
- KPMG Services (Pty) Ltd
- KrisEnergy Ltd
- Kuwait Energy
- Kvaerner ASA
- Laborde Marine
- Labyrinth Consulting Services, Inc
- Lakes Oil NL
- Lamprell
- Landdrill International
- Landmark Infrastructure Partners LP
- Lansdowne Oil & Gas
- Laramie Energy LLC
- Laredo Energy
- Laredo Petroleum Inc
- Laricina Energy Ltd
- Larsen & Toubro
- Larus Energy Ltd
- Laurel Mountain Energy
- Layne Water Midstream
- Leaf Resources Limited
- Lebanese Petroleum Administration
- Leed Resources PLC
- Legacy Oil + Gas Inc
- Legacy Reserves LP
- Legado Resources
- Lehman Brothers
- Lekoil Ltd
- Leucrotta Exploration Inc
- Lewis Energy Group
- Lexaria Corp
- LGO Energy plc
- LGX Oil + Gas Inc
- Liberty Energy Corp
- Liberty Oilfield Services
- Liberty Resources
- Librestream Technologies Inc
- Lightstream Resources
- Lilis Energy Inc
- Lime Rock Resources
- Limestone Exploration II LLC
- Linc Energy Ltd
- Lincoln Crowne & Company
- Linde Engineering North America
- Linn Co LLC
- Linn Energy LLC
- Lion Energy Corp
- Lion Energy Ltd
- Liquefied Natural Gas Ltd
- Lithium Americas Corp
- LNG Allies
- LNG Canada
- Lochard Energy Group PLC
- Locke Lord LLP
- Logan Energy Corp
- Logan International Inc
- LOGOS Energy LLC
- LOGOS Resources II LLC
- Lone Pine Resources
- Lone Star Production Company
- Lonestar Resources Inc
- LoneStar West Inc
- Long Run Exploration
- Longfellow Energy
- Longford Energy Inc
- LongPoint Minerals LLC
- Longview Oil Corp
- Lotus Creek Exploration Inc
- Louisiana Department of Natural Resources
- Louisiana Energy Conference
- Louisiana Oil & Gas Association
- Louisiana Technical Instruments
- Lower48 Analytics
- Loyz Energy Ltd
- LR Senergy
- LRR Energy, LP
- LSU
- LT Environmental Inc
- Lucero Energy Corp
- Lufkin Industries Inc
- Lukoil Oil Company
- Lundin Petroleum
- Lupatech S.A.
- Luxe Energy LLC
- Lycos Energy Inc
- Lynden Energy Corp
- M-I SWACO
- Mach Natural Resources LP
- Macquarie Group
- Macquarie Infrastructure Company
- Macro Enterprises Inc
- Madagascar Oil
- Madalena Energy Inc
- Madava Financial
- Madison Petrogas Ltd
- Madison Williams & Company
- Maersk
- Maersk Oil
- Magellan Midstream Partners LP
- Magnolia Oil & Gas Corporation
- Magnolia Petroleum
- Magnum Energy Inc
- Magnum Gas & Power Ltd
- Magnum Oil Tools International
- Magseis AS
- MagVAR
- Maha Energy
- Mahalo Energy Ltd
- Maire Tecnimont
- Major Drilling Group International Inc
- Mako Hydrocarbons
- Malabar Coal Ltd
- Malaysia Marine and Heavy Engineering
- Mammoth Energy Services Inc
- Manga LNG
- Manhattan Petroleum, Inc.
- Manitok Energy Inc
- Maple Energy
- Marathon Oil Corporation
- Marathon Petroleum Corporation
- Marginal Field Development Company
- Maridive & Oil Services
- Mariner Energy Inc
- Marion Energy Ltd.
- Marksmen Energy Inc
- MarkWest Energy Partners LP
- Marquee Energy Ltd
- Mart Resources Inc
- Martin Fuels Company Inc
- Martin Midstream Partners LP
- Marubeni
- Marwood Group
- MasTec Inc
- Master Limited Partnership Association
- Matador Resources Co
- Matra Petroleum Plc
- Matrix Composites & Engineering Ltd
- Matrix Service Co
- Maurel & Prom
- Maverick American Natural Gas
- Maverick Drilling & Exploration Ltd
- Maverick Natural Resources LLC
- Max Petroleum
- Mayan Energy Limited
- MC Mining Limited
- McCarthy Tetrault
- McCoy Corporation
- McDaniel & Associates Consultants Ltd.
- McDermott International Inc
- McKenzie Minerals Management
- McKinsey & Company
- McLaren Resources Inc.
- McMoRan Oil & Gas LLC
- MD America Energy LLC
- MDU Resources Group, Inc
- MEC Resources
- MedcoEnergi Internasional
- Medgold Resources Corp
- Mediterranean Oil & Gas Plc
- MEG Energy
- Melbana Energy
- Melrose Industries PLC
- Melrose Resources Plc
- Memorial Resource Development
- MENA Hydrocarbons Inc
- Menas Associates
- Mercator Energy
- Meren Energy Inc
- MergerMarket Group
- Meridian Resources Corp
- Meritage Midstream Services
- Mermaid Maritime
- Mesa Natural Gas Solutions
- Meta Materials Inc
- Metalore Resources Ltd
- Metgasco
- Methanex
- Metro Mining Ltd
- MFC Bancorp Ltd
- MGM Energy Corp
- Miclyn Express Offshore Ltd
- MicroSeismic
- Midcoast Energy Partners
- MidCon Energy
- Midstates Petroleum
- Midstream Energy Holdings LLC
- MIE Holdings Corp
- Milio International
- Milken Institute
- Miller Energy Company
- Miller Energy Resources
- Mineral Hill Industries Ltd
- Minexco Petroleum
- Ministry of Energy and Energy Affairs
- Ministry of Mines, Industry and Energy
- Ministry of National Infrastructures, Energy and Water Resources
- Ministry of Petroleum and Mineral Resources
- Mira Resources Corp
- Mirach Energy Ltd.
- Miramar Hydrocarbons
- Mirant Corp
- Miro Advisors
- MISC Berhad
- Mitcham Industries Inc
- Mitsubishi Corporation
- Mitsui & Co Ltd
- Mizuho Securities
- MLV & Co
- MMA Offshore
- MNP Petroleum
- Mobius Resources Inc
- Mobius Risk Group, LLC
- Modec Inc
- Modern Resources Inc
- Moesia Oil & Gas Plc
- Moir Group
- MOL Group
- Molecular Energies PLC
- Molopo Energy Limited
- Molori Energy Inc
- Momentive
- Momentum Oil & Gas LLC
- Monadnock Resources LLC
- Moni Pulo
- Montage Resources
- Montana Exploration Corp
- Montana Tech
- Montrose Lane
- Mooncor Oil & Gas
- Moreton Resources Ltd
- Morgan Advanced Materials
- Morgan Stanley
- Moriah Energy Investments
- Morning Gun Exploration
- Mosaic Energy Ltd
- Mosman Oil & Gas Ltd
- Motive Drilling Technologies
- Mountainview Energy Ltd
- Moyes & Co
- MPI SA
- MPLX LP
- MRC Global
- MS Energy Services Inc
- MTQ Corporation Ltd.
- Mubadala Petroleum
- Mullen Group Ltd
- MultiClient Geophysical
- Munich Re Reserve Risk Financing
- Municipal Gas Authority of Georgia
- Murphy Oil Corporation
- Mustang Resources Ltd
- Nabors Industries Ltd
- NAFTA a.s.
- Naftogaz of Ukraine
- NAL Energy Corp
- NAL Resources Management
- Nalco Champion
- Nalcor Energy
- NAMCOR
- NAPE
- NASDAQ
- NATCO Group Inc
- National Association of Manufacturers
- National Bank Financial Markets
- National Bureau of Asian Research
- National Energy Services Reunited Corp
- National Fuel
- National Grid Plc
- National Oilwell Varco Inc
- National Petroleum Corporation of Namibia
- National Subsea Research Initiative
- Natixis SA
- Natural Gas Services Group Inc
- Natural Gas Supply Association
- Natural Resource Partners LP
- Naturgy Energy Group
- Nautical Petroleum
- Navigant Energy
- Navigator Energy Services
- Navigator Gas
- Navios Maritime Acquisition Corp
- Navios Maritime Midstream Partners LP
- Navios Maritime Partners LP
- Navitas Petroleum
- NC Geological Survey
- NCS Multistage
- Neon Energy Ltd
- NeoTek Energy Inc
- NeoTop Water Systems Ltd
- Neptune Energy
- Neptune Marine Services Ltd
- Neset Consulting Services
- Neste Oil
- Netherland Sewell & Associates Inc
- Netscribes Inc
- New Age Exploration Ltd
- New Century Exploration LLC
- New Emerald Energy LLC
- New Fortress Energy
- New Frontier Energy Inc
- New Gulf Resources
- New Hope Corporation Ltd
- New Jersey Resources Corp
- New Klondike Exploration Ltd.
- New Sage Energy Corp
- New Source Energy Partners
- New Standard Energy
- New West Energy Services Inc
- New York Energy Forum
- New York University
- New Zealand Energy Corp
- New Zealand Oil & Gas
- New Zealand Petroleum & Minerals
- New Zealand Refining Co
- Newalta Corp
- Newcastle Energy Corp
- Newfield Exploration Company
- Newfoundland Labrador
- Newpark Resources Inc
- Newton Energy Corporation
- Nexans
- Nexen Inc
- NextDecade
- NextEra Energy Resources
- NexTier
- Nextraction Energy Corp
- Nexus Energy
- NG Energy
- NGE Capital Limited
- NGL Energy Partners
- Nidec Corporation
- Nido Petroleum Ltd
- Nigeria LNG
- Nigerian National Petroleum Corp
- Nighthawk Energy PLC
- Niko Resources Ltd
- NiMin Energy Corp
- Nine Energy Service Inc
- NIS Gazprom Neft
- NIS Naftagas
- Niska Gas Storage Partners LLC
- Noble Corporation
- Noble Energy Inc
- Noble Midstream Partners
- Noble Royalties Inc
- Nomac Drilling LLC
- Noosa Mining
- Nordic Energy
- Nordic Petroleum
- Noreco
- Norse Energy Corp
- Norshore
- Norsk Hydro
- North American Energy Partners
- North Atlantic Drilling
- North Energy Associates Ltd.
- North Energy Inc
- North Ranch Resources
- Northeast Natural Energy LLC
- Northern Blizzard Resources Inc
- Northern Oil & Gas Inc
- Northern Patriot Oil & Gas Ltd
- Northern Tier Energy Inc
- Northland Power Inc
- NorthWestern Corporation
- Norton Rose Fulbright
- Norvista Capital Corp
- Norwegian Petroleum Directorate
- Norwest Energy
- Nostra Terra Oil & Gas Company PLC
- Nostrum Oil & Gas
- Nova Scotia Power Inc
- Novara GeoSolutions
- Novatek
- Novo Oil & Gas
- Novus Energy Inc
- Novus Oil & Gas Consulting
- NP Energy Services
- NP Resources LLC
- NRG Energy Inc
- NRG Yield Inc
- NU Oil and Gas
- Nucor
- NuEnergy Gas Ltd
- Nuevo Midstream
- Nunaoil
- NuStar Energy LP
- NuStar GP Holdings LLC
- NuTech Energy Alliance
- Nuverra Environmental Solutions Inc
- NuVista Energy Ltd
- NVentures
- NWest Energy Inc
- NWF Group plc
- NXT Energy Solutions Inc
- Oak Ridge Natural Resources LLC
- Oak Valley Resources LLC
- Oakspring Energy
- Oando Energy Resources
- Oasis Midstream Partners
- Oasis Petroleum
- Obsidian Energy Ltd
- Occidental Petroleum Corporation
- Ocean Rig
- Ocean Yield
- Oceaneering International Inc
- Oceanteam Shipping
- Och-Ziff Capital Management Group
- Octagon 88 Resources
- Octanex NL
- Odfjell Drilling
- Odin Energy Ltd
- Odyssey Energy Ltd
- Offshore Technology
- OFS Energy Fund
- OGE Energy Corp
- OHA Investment Association
- Ohio Oil & Gas Association
- Oil & Gas Council
- Oil & Gas Development Company Ltd
- Oil & Gas Journal
- Oil Basins Ltd.
- Oil India Limited
- Oil Optimization Inc
- Oil Sands Community Alliance
- Oil Search Ltd
- Oil States International Inc
- Oilex Ltd
- Oilsands Quest Inc
- Oiltanking Partners LP
- OKEA
- Oklahoma Geological Survey
- Oleo e Gas
- Oliver Wyman
- OMNIS
- OMV Group
- Omv Petrol Ofisi
- OMV Petrom
- OneEnergy Partners
- ONEOK Inc
- ONEOK Partners LP
- ONGC
- ONGC Videsh Limited
- ONHYM
- Online Energy Inc.
- Opal Resources Operating Co LLC
- Open Range Energy Corp
- Ophir Energy plc
- Opportune LLP
- Oracle Energy Corp
- Oranje-Nassau Energie
- Orca Energy Ltd.
- Orca Exploration Group
- Origami Capital Partners
- Origin Bank
- Origin Energy
- Orion Exploration LLC
- ORIX
- Orkustofnun
- Orlen Upstream Canada
- Ormat Technologies Inc
- Orpheus Energy Ltd
- Orsted
- Ortloff Engineers Ltd
- ORX Resources Inc
- Oryx
- Osage Exploration & Development
- Osaka Gas Co., Ltd
- OSIsoft
- Osprey Capital Partners
- OSUM Oil Sands Corp
- OSX Brasil S.A.
- Otis Energy Ltd
- Otter Tail Corp
- Otto Energy Ltd
- Otto Marine Ltd
- Outfitter Energy Capital
- Overseas Shipholding Group
- Ovintiv
- Oyster Oil & Gas Ltd
- PA Resources
- PAA Natural Gas Storage
- PACC Offshore Services Holdings Ltd
- Pace Oil & Gas Ltd
- Pacific Coast Oil Trust
- Pacific Drilling S.A.
- Pacific Paradym Energy Inc
- Pacific Radiance Ltd
- Pacific Rodera Energy Inc
- Packers Plus
- PacWest Consulting Partners
- Painted Pony Energy Ltd
- Palantir Solutions Ltd
- Palfinger Marine
- Palliser Oil & Gas Corporation
- Palynova
- Pan African Oil
- Pan Asia Corporation Ltd
- Pan European Terminals PLC
- Pan Orient Energy Corp
- Pan Pacific Petroleum NL
- Pancontinental Oil & Gas
- Panhandle Oil & Gas Inc
- Panoro Energy ASA
- Pantheon Resources PLC
- Panther Energy Company II, LLC
- PanXchange
- Par Pacific (Delta Petroleum)
- Paragon Offshore PLC
- Parallel Energy Trust
- Parallel Petroleum Corporation
- Paramount Resources Ltd
- Pardus Oil & Gas LLC
- Pareto Securities
- Parex Resources Inc
- Park Place Energy Corp
- Parker Drilling Co
- Parker Hannifin Corp
- Parkland Fuel Corporation
- Parkman Whaling LLC
- Parks Paton Hoepfl & Brown
- Parsley Energy
- Particle Drilling Technologies Inc
- Pason Systems Inc
- Passport Energy Ltd
- Pattern Energy
- Patterson-UTI Drilling Co LP
- Pawnee Energy Ltd
- Paz Oil Co Ltd
- PBF Energy Inc
- PBF Logistics LP
- PDC Energy Co
- Peabody Energy Corp
- Peak Energy Services Trust
- Peak Oil & Gas
- Peaker Energy
- Peako Limited
- PEDEVCO Corp
- Pegasi Energy Resources Corp
- Pembina Pipeline Corp
- PEMEX
- Pengrowth Energy Corp
- Penn State Department of Geosciences
- Penn Virginia Corp
- Pennant Energy Inc
- PennEnergy Resources LLC
- Pennine Petroleum Corp
- PennTex Midstream Partners
- PentaNova Energy Corp
- Percy Creek Partners
- Performance Sciences Inc
- Perigon
- Permex Petroleum
- Permian Basin Royalty Trust
- Permian Resources
- PermRock Royalty Trust
- Perpetual Energy Inc
- Pertamina
- Perupetro S.A.
- Peters & Co. Limited
- Petoro
- Petrel Energy Ltd
- Petrel Resources Plc
- Petrel Robertson Consulting Ltd
- Petrichor Energy
- Petrie Partners
- Petro Capital Group
- Petro Capital Securities
- Petro Lucrum Inc
- Petro Matad Ltd
- Petro River Oil
- Petro Spring LLC
- Petro Viking Energy Inc
- Petro Vista Energy Corp
- Petro Welt Technologies AG
- Petro-Victory Energy
- Petroamerica Oil Corp
- Petrobank Energy and Resources Ltd
- PetroBras
- PetroCap
- Petroceltic International Plc
- PetroChina
- Petroci Holding
- Petrodorado Energy Ltd
- Petrofac
- PetroFrontier Corp
- PetroGlobe Inc
- Petrogrand AB
- Petrohawk Energy Corp
- PetroLatina Energy
- Petroleum Agency SA
- Petroleum Engineers Club of Dallas
- Petroleum Exploration Ltd
- Petroleum Exploration Society of Australia
- Petroleum Geo-Services
- Petrolia Energy
- Petrolia Inc
- Petrolympic Ltd
- PetroMagdalena Energy Corp
- PetroMar Technologies
- PetroMaroc Corporation
- Petromin Resources Ltd
- Petrominerales Corp
- Petronas
- PetroNeft Resources Plc
- PetroNerds LLC
- Petronet LNG Ltd
- PetroNova Inc
- Petrophysical Resources Alaska
- PetroQuest Energy Inc
- PetroRio
- PetroSA
- PetroSantander
- Petroshale Inc
- PetroShare Corp
- Petrosibir
- Petrostar Petroleum Corp
- PetroTal Corp
- Petroteq Energy Inc
- PetroValues
- Petrovietnam Drilling
- Petrovietnam Exploration Production Corporation
- Petrowest Corp
- PetroWorth Resources Inc
- Petrox Resources Corp
- Petrus Resources Ltd
- Petsec Energy Ltd
- Peyto Exploration & Development Corp.
- PF Holdings
- PFC Energy
- PG&E Corp
- PGNiG
- Pharis Energy
- Philex Petroleum
- Philippine Department of Energy
- Philippine National Oil Company
- Phillips 66
- Phillips 66 Partners
- Phoenix Exploration Company
- Phoenix Global Resources
- Phoenix Technology Services LP
- Photosat
- PHX Minerals Inc
- PI Financial
- Pickering Energy Partners
- Pieridae Energy Limited
- Pilot Energy Ltd
- Pine Cliff Energy Ltd
- Pinecrest Energy Inc
- Pinedale Energy Ltd
- Pinnacle Gas Resources
- Pioneer Energy Services Corp
- Pioneer Natural Resources Co
- Pioneer Oil & Gas
- Pioneer Southwest Energy Partners LP
- Pipeline & Hazardous Materials Safety Administration
- Pipestone Energy Corp
- PIRA Energy Group
- PKN Orlen
- Plains All American Pipeline LP
- Plains Exploration & Production Company
- Plains GP Holdings
- Planet Gas Ltd
- Plantation Petroleum Company
- Platino Energy Corp
- Platinum Energy Resources
- Plexus Capital LLC
- PLG Consulting
- PLS Inc
- Pluspetrol
- Po Valley Energy Ltd
- Point Loma Resources Ltd
- Point Resources
- Poland Ministerstwo Rozwoju
- Polar Star Canadian Oil and Gas Inc
- Polarcus
- Polish Geological Institute
- Ponderosa Energy
- Poplar Creek Resources Ltd
- Porter Hedges LLP
- Portland General Electric Co
- Porto Energy Corp
- POSCO International
- PostRock Energy Corp
- Poten & Partners
- Powder Mountain Energy Ltd
- PPL Corp
- Prairie Operating Co
- Prairie Provident Resources Inc.
- PrairieSky Royalty Ltd
- Praxair
- PRD Energy Inc
- Precision Drilling
- Preferred Sands
- Premier Oil
- President Energy
- Presidio Petroleum
- Pressure Technologies plc
- Preston Energy Inc
- Primary Petroleum Co LLC
- Primeline Energy Holdings Inc
- Primera Energy Resources Ltd
- Primoris Services Corporation
- Priority Energy LLC
- Prism Midstream LLC
- Pritchard Capital Partners LLC
- Prize Reserves Management Ltd
- Pro-gas Services LLC
- ProEx Energy Management LLC
- Profire Energy Inc
- Programmed Maintenance Services Ltd
- Progress Energy Resources Corp
- Promesa Ltd
- Promigas
- Prominence Energy Ltd
- Pronghorn Logistics
- Propell Technologies Group Inc
- ProPetro
- PropX
- Prosafe
- ProSep Inc
- Proserv
- Prospector Offshore Drilling
- Prospera Energy Inc
- ProspEx Resources Ltd
- Protégé Energy III LLC
- Providence Energy Ltd
- Providence Resources PLC
- PRT Offshore
- Prudential Capital Group
- Pryme Energy
- PSEG Energy Resources & Trade
- PT Energi Mega Persada Tbk
- PT Petroleum LLC
- PTG Energy
- PTT
- PTT Global Chemical
- PTTEP
- Public Service Enterprise Group Incorporated
- Puget Energy Inc
- Pulse Oil Corp
- Pulse Seismic Inc
- Pura Vida Energy
- Pure E&P
- Pure Energy
- Pure Energy Services
- PureWest
- PVR Partners LP
- PwC
- PXP Energy Corp
- Qatargas
- QEP Midstream
- QEP Resources Inc
- QinetiQ
- QMax Solutions Inc
- QR Energy
- Quadrant Energy
- Quadrise Fuels International PLC
- Quality Energy Services
- Quanta Services
- Quantico Energy Solutions
- Quantum Energy Partners LP
- Quantum Resources Management LLC
- Quaterra Resources
- Quattro Exploration & Production Ltd
- Queiroz Galvão S.A.
- QuEST Global Services
- Quest Offshore Resources
- Questar
- Questar Pipeline Co
- Questerre Energy Corp
- Questfire Energy Corp
- Questor Technology Inc
- Quicksilver Resources Inc
- Quintana Capital Group, L.P.
- Quorum Software
- Radiant Oil & Gas
- Radiant Utama Interinsco Tbk Pt
- Raging River Exploration
- Raise Production Inc
- Raizen
- Rally Energy Corp.
- Rallyemont Energy Inc
- RAM Energy LLC
- Ramba Energy
- Range Energy Resources Inc
- Range Resources Corp
- Range Resources Ltd
- Rangeland Energy
- Ranger Energy Services
- Ranger Oil Corporation
- Rango Energy
- Rattler Midstream LP
- Rawson Oil & Gas
- Raymond James & Associates Inc
- Raymond James Albrecht
- Razor Energy Corp
- RBAC Inc
- RBC Richardson Barr
- RBN Energy LLC
- RBSA Advisors
- Reabold Resources
- Real Energy Corp
- Recoil Resources
- ReconAfrica
- Red Arrow Energy LLC
- Red Eléctrica Corporación
- Red Emperor Resources NL
- Red Fork Energy
- Red Gum Resources Ltd
- Red Mountain Resources
- Red Sky Energy Ltd
- RedBud Exploration & Production Inc
- Redman Energy Corporation
- Redman Management Company
- RedWater Energy Corp
- Reef Resources Ltd
- Reflections Data Consulting
- Regal Resources Inc
- Regency Energy Partners LP
- Relentless Resources Ltd
- Reliable Energy Ltd
- Reliance Industries Limited
- Reliant Energy Inc
- Renaissance Oil Corp
- Renegade Petroleum Ltd
- ReNew Energy Global Plc
- Renewell Energy
- Rentech Inc
- Rentech Nitrogen Partners LP
- ReOil Energy
- Repsol
- Republic of Bulgaria Ministry of Energy
- Republic Services Inc
- Resaca Exploitation Inc
- Reservoir IntelliLogic LLC
- Reservoir Visualization Inc
- Resolute Energy Corporation
- Resource Energy Partners LLC
- Resource Generation Ltd
- Resource Star
- Resource Technologies Corp
- Return Energy Inc
- Revenir Energy Inc
- Rex Energy Corp
- Rex International Holdings
- Rey Resources Ltd
- RGC Resources Inc
- RH PetroGas
- Rhino Resource Partners LP
- Rice Energy Inc
- Rice Midstream Partners LP
- Rice University, James A. Baker Institute
- Richfield Oil & Gas Co
- Richmond Energy Partners
- Ridgeline Energy Services Inc
- Rift Energy
- RigNet Inc
- Riley Exploration Permian Inc
- Ring Energy Inc
- Rio Grande E&P LLC
- Rio Oil & Gas II LLC
- RISC
- Risco Energy
- Rising Star Energy
- Riverstone Holdings LLC
- Riviera Resources LLC
- Rivington Holdings LLC
- RKI Energy Resources
- RKR Services
- RMP Energy Inc.
- ROAM AI
- Roan Resources
- Robbins & Myers Inc
- Robert W Baird & Co Inc
- Roc Oil Company Limited
- Rock Energy Inc
- RockBridge Resources Inc
- Rockcliff Energy LLC
- Rockdale Energy LLC
- RockEast Energy Corp
- Rockefeller Hughes Corp
- Rockhopper Exploration PLC
- RockRose Energy
- Rod and Tubing Services
- Rodinia Oil Corp
- Rodman & Renshaw LLC
- ROK Resources Inc
- Romgaz
- Rompetrol-Rafinare
- Rooster Energy Ltd
- Rose & Associates
- Rose Petroleum
- Rose Rock Midstream
- Rosehill Resources Inc
- Rosetta Resources Inc
- Rosneft
- Ross Smith Energy Group Ltd
- ROTH Capital Partners
- RoundRock Capital Group
- Rowan Companies
- Roxi Petroleum
- Royal Dutch Shell
- Royal Exploration Company Inc
- Royale Energy Inc
- RPC Inc
- RPS Group Plc
- RPSEA
- RS Energy Group
- RSP Permian Inc
- Rubellite Energy Inc
- Running Fox Resources Corp
- Ruspetro
- Russel Metals
- RWE
- Ryder Scott
- Rystad Energy
- S&P Global
- S-Oil
- S.D. Standard Drilling Plc
- Sabine Oil & Gas
- Sable Natural Resources
- Sable Permian Resources
- Sable Resources Ltd
- Sabre Graphite Corp
- Sacgasco Ltd
- SacOil Holdings Ltd
- SAExploration
- Sage Road Capital
- Sageview Capital
- Sagres Energy Inc
- Saguaro Resources Ltd
- Saharawi Arab Republic
- Saipem
- Saka Energi
- Salamander Energy
- Salt Lake Potash Ltd
- Samson Oil & Gas Ltd
- Samson Resources
- San Juan Resources Inc
- San Leon Energy
- Sanchez Energy
- Sanchez Midstream Partners
- SandRidge Energy Inc
- SANPPA
- Santa Elena Minerals LP
- Santa Maria Petroleum Inc
- Santacruz Silver Mining Ltd.
- Santander Global Corporate Banking
- Santonia Energy Inc
- Santos Ltd
- SAP SE
- SapuraKencana Petroleum
- Saras S.p.A.
- Saratoga Resources Inc
- Sasol Limited
- Saturn Minerals
- Saturn Oil + Gas
- Saudi Aramco
- Savanna Energy Services Corp
- Savannah Petroleum
- Saxon Energy Services Inc
- Saxon Oil Company Ltd
- Sayer Energy Advisors
- SBM Offshore
- SC Fuels
- Scala Energy
- Schachter Asset Manager Inc
- Schlumberger Ltd
- Schubarth Inc.
- Scirocco Energy
- Scotia Howard Weil
- Scotia Waterous
- ScotiaBank
- SDX Energy Inc
- SeaBird Exploration
- Seacor Holdings Inc
- Seadrill
- Seadrill Partners LLC
- SeaEnergy PLC
- Seahawk Drilling Inc
- Seaport Global Securities LLC
- Seaway Energy Services Inc
- Second Wave Petroleum Ltd
- Secure Energy Services Inc
- Securities & Exchange Commission
- Sefton Resources
- Select Energy Services
- Select Water Solutions
- Selena Oil & Gas
- Sembcorp
- Sembcorp Marine
- SemGroup Corp
- Sempra Energy
- Senex Energy Limited
- Seplat Petroleum Development Company Plc
- Sequa Petroleum
- Sequitur Energy Resources LLC
- Serica Energy
- Serinus Energy
- Sevan Drilling
- Sevan Marine
- Seven Generations Energy Ltd
- Seventy Seven Energy Inc
- SFC Energy Partners
- Shale Crescent USA
- ShaMaran Petroleum Corp
- Shamrock Energy Solutions
- Shaw Group
- ShawCor Ltd
- Shelf Drilling
- Shell Midstream Partners LP
- Sheridan Production Partners
- Sherritt International
- Shiner Exploration
- Shizuoka Gas Co Ltd
- Shoal Point Energy Ltd
- Shona Energy Company Inc
- Shoreline Energy Corp
- Showa Shell Sekiyu K.K
- Siamgas & Petrochemicals
- Sibur
- Sidewinder Drilling
- Siem Offshore
- Siemens
- Sierra Leone Petroleum Directorate
- Silver Hill Energy Partners LLC
- Silverback Exploration
- SilverBirch Energy Inc
- SilverBow Resources Inc
- Silverwell
- SilverWillow Energy
- Simba Energy Inc
- Simco Petroleum
- Simmons & Company International
- Sinclair
- Sino Australia Oil & Gas Ltd
- Sino Gas & Energy
- Sino Oil & Gas Holdings Ltd
- Sinopec
- Sinopec Canada
- Sintana Energy
- SipChem
- SIPES
- Sirocco
- Sistema JSFC
- SitePro
- Sitio Royalties Corp
- Sixth Creek Energy
- SK Innovation
- Skope Energy Inc
- Skyland Petroleum
- SLR Consulting Pty Ltd
- SM Energy Company
- Smart Sand Inc
- SmarTract, Inc.
- SMF Energy Corporation
- SMi Group
- Snam
- SNC Lavalin
- SNR Denton
- Societe Generale
- Society of Exploration Geophysicists
- Soco International Plc
- Sojitz
- Solara Exploration Ltd
- Solaris Oilfield Infrastructure
- Solimar Energy Ltd
- Solo Oil plc
- Solstad Offshore
- Solvay
- Soma Oil & Gas
- Sonangol
- Sonatrach
- Sonde Resources
- Songa Offshore
- Sonoro Energy Ltd
- Sound Energy plc
- Source Energy Services
- Source Rock Resources
- Sourcewater
- South African Oil & Gas Alliance
- South Atlantic Petroleum
- South Jersey Industries Inc
- South Pacific Resources Ltd
- Southcross Energy Partners LP
- Southern Company
- Southern Energy
- Southern Methodist University Maguire Energy Institute
- Southern Pacific Resources Corp
- Southern Union Company
- SouthWest Energy
- Southwest Gas Corporation
- Southwest Research Institute
- Southwestern Energy Co
- SparkCognition
- Spartan Delta Corp
- Spartan Energy Corp
- Spartan Oil Corp
- SPE
- Spears & Associates
- Spectra Energy Corp
- Spectra Energy Partners
- Spectrum ASA
- SPEE
- Spilman Thomas & Battle
- Spire Inc
- SPOC Automation Inc
- Spoke Resources Ltd
- Sprague Resources LP
- Spring Energy
- Springfield Group
- Sprint Energy Ltd
- Sprott Resource Corp
- Sprott Toscana
- Sproule
- Spur Energy Partners LLC
- Spyglass Energy Group, LLC
- Spyglass Resources Corp
- SRC Energy
- SSE Plc
- Staatsolie Maatschappij Suriname N.V.
- Stabilis Energy
- Stage Completions Inc
- Staghorn Petroleum LLC
- Standard Chartered Bank
- Standard Exploration Ltd
- Standard Lithium
- Stanmore Coal Ltd
- Star Energy Group plc
- Statesman Resources Ltd
- Statoil
- StealthGas Inc
- Stellar Energy Advisors
- STEP Energy Services
- Stephen Smith Inc
- Stephens Inc
- Sterling Energy PLC
- Sterling Resources Ltd
- Steward Energy II LLC
- Stifel
- Stikeman Elliott LLP
- Stolt-Nielsen Limited
- Stone Energy Corporation
- StonePoint Energy
- Storengy
- Storm Resources Ltd
- Strad Energy Services Ltd
- Strata-X Energy Ltd
- Stratagen Engineering
- Stratas Advisors
- Strategic Energy & Economic Research Inc.
- Strategic Energy Resources Ltd.
- Strategic Oil & Gas Ltd
- Strategy West Inc
- Strath Resources
- Strathcona Resources Ltd
- Stream Oil & Gas Ltd
- Stream Services
- Stress Engineering Services Inc.
- Strike Energy
- Striker Exploration Corp
- Strong Petrochemical Holdings Ltd
- Stronghold Energy II
- Stroytransgaz
- Subsea 7
- Subsurface Consultants & Associates, LLC
- Suburban Propane Partners LP
- Sui Southern Gas Company
- Sulzer Ltd
- Sumatec
- Sumitomo Corporation
- Sumitomo Mitsui Banking Corporation
- Summit ESP LLC
- Summit Midstream Partners LP
- Sun Resources NL
- Sun River Energy Inc
- Suncor Energy Inc
- Sundance Energy
- Sundance Energy Corp
- Sunoco Logistics Partners LP
- Sunoco LP
- Sunpower
- Sunridge Energy Corp
- Sunshine Oilsands Ltd
- SunTrust Robinson Humphrey
- Super Nova Petroleum Corp.
- Superior Drilling Products
- Superior Energy Services, Inc
- Superior Pipeline Company
- Superior Plus
- Superior Silica Sands LLC
- Superior Well Services Inc
- Supernova Energy B.V.
- Sure Energy Inc
- Surestream Petroleum
- Surge Energy America
- Surge Energy Inc
- Suroco Energy Inc
- Svenska Petroleum Exploration
- Swala Energy Ltd
- Swiber Holdings
- Swift Energy Co
- Synthesis Energy Systems
- Syntroleum Corp
- T5 Oil & Gas
- TAG Oil Ltd
- Tailwater Capital LLC
- Talara Capital Management
- Talen Energy Corp
- Talisman Energy Inc (Repsol)
- Tall City Exploration
- Tall Oak Midstream
- TallGrass Energy
- Tallgrass Energy Corp
- Talon Petroleum Ltd
- Talos Energy
- Tamar Petroleum
- Tamarack Valley Energy Ltd
- Tamaska Oil & Gas Ltd
- Tamboran Resources Pty Ltd
- Tamm Oil & Gas Corp
- Tanager Energy Inc
- Tangle Creek Energy Ltd
- Tanker Investments Ltd
- Tanzania Petroleum Development Corporate
- Tap Oil Limited
- Tapstone Energy
- TAQA
- Targa Pipeline Partners
- Targa Resources
- Target Energy Inc
- Target Energy Ltd
- TATNEFT
- Taurex Resources PLC
- Taurus Reservoir Solutions Ltd
- TC Energy
- TC Pipelines LP
- TCW
- TD Securities Inc
- Teal Natural Resources
- Technip
- Technip Energies
- TechnipFMC
- Teck Resources Ltd
- Tecnicas Reunidas
- Teco Energy
- Teekay Corporation
- Teekay LNG Partners LP
- Teekay Offshore
- Teekay Tankers
- Teine Energy
- Teledyne Technologies
- Tellurian Inc
- Tenaris
- Tenaz Energy Corp
- Tengasco Inc
- Tenth Avenue Petroleum Corp
- Tern Plc
- Terpel SA
- Terra Energy Corp
- Terra Oilfield Services
- Terrace Energy
- TerraCom Ltd
- TerraForm Power
- TerraVest Capital
- Terrex Energy Inc
- Tervita Corp
- Tesco Corporation
- Tesla Exploration Ltd
- Tesla Inc
- Tesoro Corp
- Tesoro Logistics LP
- Tethys Oil
- Tethys Petroleum
- Tetra Technologies
- Texas A&M Harold Vance Department of Petroleum Engineering
- Texas Alliance of Energy Producers
- Texas Pacific Land Trust
- Texas Standard Oil LLC
- TexonPetroleum Ltd.
- TGC Industries Inc
- TGS Nopec Geophysical
- Thai Oil Group
- Thalassa Holdings
- The Boston Consulting Group
- The Carlyle Group
- The CWC Group
- The Great Eastern Shipping Co. Ltd
- The Oil & Gas Asset Clearinghouse
- The Steam Oil Production Company Ltd
- The University of Kansas - Kansas Geological Survey
- The University of Texas- Jackson School of Geosciences
- Thermons
- Thomasson Partner Associates, Inc.
- Three Rivers Operating Company
- Thru Tubing Solutions
- Thunderbird Resources
- Thunderbird Resources Equity Inc
- Tidewater Inc
- Tidewater Midstream & Infrastructure Ltd
- Timor Gap
- Titan Energy LLC
- Titan Energy Services
- Titan Logix Corp
- Titan Petrochemicals Group Ltd
- Titanium Exploration Partners
- Tlou Energy
- TMK
- TMX
- TNK-BP
- Tokyo Gas
- TomCo Energy PLC
- TonenGeneral Sekiyu K.K.
- TORC Oil & Gas Ltd
- Torchlight Energy Resources Inc
- TORM A.S
- Toro Oil & Gas Ltd
- Torquay Oil Corp
- Torys LLP
- Total
- Total Energy Services LLC
- TotalEnergies
- Touchstone Exploration Inc
- Touradji Capital Management LP
- Tourmaline Oil Corp
- Tower Resources
- Toyo Engineering Corp
- Toyota Tsusho Corp
- TPAO
- TPG SPECIAL SITUATIONS PARTNERS
- Trace Atlantic Oil Ltd
- Tracker Resource Development LLC
- Trafina Energy Ltd
- Trans Energy Inc
- TransAlta Corp
- Transatlantic Petroleum Ltd
- TransCanada
- Transerv Energy
- Transeuro Energy Corp
- Transgaz
- TransGlobe Energy Resources AG
- TransMontaigne Partners
- Transocean Ltd
- Transocean Partners LLC
- Transportadora de Gas del Sur
- Transworld Technologies
- Traverse Energy Ltd
- Trayectoria Oil & Gas
- TreadStone Energy Partners
- Trecora Resources
- Trevi Group
- Triangle Energy Ltd
- Triangle Petroleum Corporation
- Trican Well Service Ltd
- Trico Marine
- Trillion Energy
- Trilogy Energy Corp
- Trinidad Drilling Ltd
- Trinity Exploration & Production Ltd
- Triple Crown Resources
- Triple Double Advisors LLC
- Triple Energy Ltd
- Triyards Holdings
- Trueblood Resources Inc
- Tsakos Energy Navigation Ltd
- TTE Petroleum
- Tudor Pickering Holt & Co
- Tulip Oil
- Tullow Oil PLC
- Tupras
- Turcas Petrol
- Turner, Mason & Company
- Tuscany Energy Ltd
- Tuscany International Drilling Inc
- TVI Pacific Inc
- TVK
- Twin Butte Energy Ltd
- Twoco Petroleums Ltd
- TXNM Energy Inc
- TXO Partners LP
- U & D Coal Ltd
- U.S. Energy Corp
- U.S. Energy Development Corporation
- U.S. Environmental Protection Agency
- U.S. Oil & Gas plc
- Ubiterra Corporation
- UBS Securities
- UGI Corporation
- UGL Ltd
- UIL Energy Ltd
- UK Export Finance
- UK Oil & Gas Authority
- UK Oil & Gas Investments
- UK Trade & Investment
- Ulterra Drilling Technologies
- Ultra Petroleum Corp
- Ultrapar Participacoes SA
- UMC Energy
- UMW Oil & Gas Corporation
- Unconventional Gas Resources
- Underground Energy Corporation
- Union Drilling Inc
- Union Jack Oil plc
- Union of the Comoros
- Unipetrol
- Unit Corporation
- United Hunter Oil and Gas Corp
- United Hydrocarbon International Corp
- United Rentals
- Unitil Corp
- Universal Coal Plc
- University Lands
- University of Aberdeen
- University of Houston Law Center
- University of Houston- Cullen College of Engineering
- University of Manchester
- University of Oklahoma
- University of Tulsa- College of Engineering & Natural Sciences
- UNX Energy Corp
- UpCurve Energy
- Upstream Exploration LLC
- Urals Energy
- URS Corp
- URS Flint
- Ursa Resources Group II LLC
- US Chamber of Commerce
- US Department of Transportation
- US Environmental Protection Agency
- US Geophysical LLC
- US Oil Sands Inc
- US Silica
- US Well Service
- USA Compression Partners LP
- USD Partners LP
- USGS
- UT Dallas Naveen Jindal School of Management
- UTS Energy Corp
- UTSA- Institute for Economic Development
- Vaalco Energy Inc
- Valaris PLC
- Valener Inc
- Valero Energy Corp
- Valero Energy Partners LP
- Valerus
- Valeura Energy Inc
- Valiant Petroleum Plc
- Validus Energy
- Vallourec SA
- Valmec Ltd
- Van Dyke Energy Company
- Vangold Resources Ltd
- Vanguard Energy Corp
- Vanguard Natural Resources LLC
- Vanoil Energy Ltd
- Vantage Drilling Company
- Vantage Energy Inc
- Vaquero Midstream LLC
- Var Energi
- Vard Holdings Ltd
- Vast Exploration Inc
- Vecta Energy Corp
- Vectren Corp
- Vedanta
- Velocity Midstream Partners LLC
- Velocys
- Venado Oil & Gas LLC
- Venoco Inc
- Venture Global LNG
- Veolia
- Veraz Petroleum Ltd
- Verde Bio Holdings
- Veren Inc
- Veresen Inc.
- Veritas Energy Management LLC
- Vermilion Cliffs Partners
- Vermilion Energy Inc
- Vero Energy Inc
- Vero3
- Vertex Energy Inc
- Verus Petroleum UK Ltd
- Viaro Energy
- Viasat Inc
- Victoria Oil & Gas
- Victory Energy Corp
- Vine Energy
- Vinson & Elkins LLP
- Vintage Energy
- Viper Energy Partners LP
- Virage Energy Group LLC
- Viridien
- Virtus Oil & Gas Corp
- Vista Oil & Gas
- Vista Proppants and Logistics
- Vistra Energy Corp
- Vital Energy Inc
- Vital Energy Inc
- Vitesse Energy
- Volcanic Metals Corp
- Volga Gas
- Volt Resources Ltd
- Voltaic Strategic Resources
- Voltaic Strategic Resources
- Vopak
- Vortus Investments Advisors LLC
- VSA Capital
- VTTI Energy Partners
- Vulcan Minerals Inc
- W Advisory
- W Resources Plc
- W&T Offshore Inc
- Wachovia
- Waldemar S. Nelson & Co Inc
- Waldron Energy Corporation
- Wall Street Journal
- Wandoo Energy
- Warburg Pincus
- Warrego Energy
- Warren Resources Inc
- Warwick Energy Group
- Waste Management Inc
- Watco Companies
- Water Lens
- Wavefront Technologies Solutions Inc
- Weatherford International
- WEC Energy Group
- Weidner Advisors LLC
- Weir Oil & Gas
- WellAware
- Wellbore Energy Solutions, llc
- Wells Fargo
- Wellstar Energy Corp
- Wentworth Resources Ltd
- Wenzel Downhole Tools Ltd
- Wesfarmers
- West Energy Ltd
- West Inc
- Westar Energy & Reserves
- Westbrick Energy Ltd
- Westbridge Energy
- Westcore Energy Ltd
- Western Australia Department of Mines and Petroleum
- Western Energy Alliance
- Western Energy Production
- Western Energy Services Corp
- Western Gas Partners LP
- Western Midstream Partners
- Western Oil Exploration
- Western Refining Inc
- Western Refining Logistics
- Westernzagros Resources Ltd
- WestFire Energy Ltd
- Westlake Chemical Partners LP
- Westmount Energy Ltd
- Westport Fuel Systems
- WestSide Corp
- Westwood Global Energy Group
- Weyerhaeuser Company
- WGL Holdings Inc
- White Energy Company Ltd
- White Knight Production LLC
- Whitebark Energy
- Whitecap Resources Inc
- Whitehaven Coal Ltd
- Whiting Petroleum Corp
- WHL Energy Ltd
- Wilcox Swartzwelder & Co
- WildHorse Resource Development Corp
- Willbros Group Inc
- William M. Cobb & Associates, Inc.
- Williams Companies
- Williams Partners L.P.
- Wilton Petroleum
- Wilton Resources Inc
- Winalta Inc
- Winchester Energy Ltd
- Wind River Energy Corp
- Winstar Resources Ltd
- Wintershall
- Wipro
- Wise Well Intervention Services Inc
- Witt O'Brien's
- Woburn Energy Plc.
- Wolf Petroleum Ltd
- Wolverine Energy & Infrastructure
- Wood Group PLC
- Wood Mackenzie
- Woodside Petroleum
- World Fuel Services Corp
- World National Oil Companies Congress
- World Petroleum Council
- Worley Parsons Ltd
- WPX Energy
- Wright & Co Inc
- WTD Resources LLC
- Wunderlich Securities
- WVONGA
- Xcel Energy
- XCEL Partners
- Xcite Energy Resources Ltd
- Xped Limited
- XPLR Infrastructure, LP
- Xstate Resources
- XTO Energy Inc
- Xtract Resources PLC
- Xtreme Drilling Corp
- Yanchang Petroleum International Ltd
- Yancoal Australia Ltd
- Yangarra Resources Ltd
- Yerbil Petroleum Ltd
- Yinson Holdings Berhad
- Yoho Resources Inc
- Yokogawa Electric Corp
- YPF
- YPFB
- Yuma Energy Inc
- Z Energy Ltd
- Zargon Oil & Gas Ltd
- ZaZa Energy Corporation
- ZCL Composites Inc
- Zedi Inc
- ZEEP
- Zenith Energy
- Zenith Energy Ltd
- Zephyr Energy
- Zeta Petroleum PLC
- Zion Oil & Gas Inc
- Zoltav Resources
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