Company
1836 Resources Llc
299 Resources LLC
3d Oil Limited
3MV Energy Corp.
40 Creek Oilfield Services Ltd.
49 North Resources
4AM Midstream
A&t Petroleum Company Ltd.
Abraxas Petroleum Corp.
Acadian Energy Llc
Acceleration Resources Llc
Access Midstream Partners, L.P.
Acer Energy Limited
Acme Trucking Inc.
Acon Investments Llc
Activa Resources Ag
Actuant Corporation
Acumen Energy Partners Inc.
Adelaide Energy Ltd.
Adf Holdings Inc
Admiral Bay Resources Inc.
Admiral Permian Resources, LLC
Advantage Energy Ltd.
Advantage Pipeline, Llc
Advent International
Adventure Exploration Partners Llc
Aethon Energy
Aexco Petroleum Inc.
Afren Plc
Africa Energy
Africa Oil Corp.
Agave Energy Co
Ageron Energy, LLC
Aggietech Oil Ltd
Agora Oil & Gas
Agr Tools Inc
Agriterra Limited
Air Liquide Industrial U.S. Lp
Aiteo Eastern E&p Co. Ltd.
Ajax Exploration
Ajax Resources LLC
Akastor ASA
Aker BP
Aker Solutions
Alamo Pressure Pumping
Alberta Oilsands Inc
Alberta Star Development Corporation
Alerion Gas Axa LLC
Alexander Energy Ltd.
Align Midstream Partners LP
Alinda Capital Partners
AllDale Minerals II, LP
AllDale Minerals LP
Alliance Drilling Fluids Llc
Alliance Oil Company
Alliance Petroleum Co
Alliance Resource Partners Lp
Allied Energy Inc
Allied Oil & Gas Services
Almac Environmental Services
Alp Maritime Services Bv
Alpha Energy Inc.
Alpha Natural Resources Inc.
Alpine Energy Capital
Als Oil and Gas
Alta Energy Luxembourg S.A.R.L
Alta Mesa Resources, Inc
Alta Resources Development, LLC
Alta Resources Llc
Altacanada
Altagas Limited
Altima Resources Ltd.
Altura Energy Inc.
Altus Midstream Co.
Amarok Energy Inc.
Amec Plc
Amelia Resources Llc
Amen Properties
Ameredev, LLC
America Resources Exploration
American Eagle Energy Corp
American Energy Partners
American Energy Utica Llc
American Exploration Corp
American Impact Energy
American Midstream Partners Lp
American Natural Energy Corp.
American Oil & Gas Inc.
American Petro-Hunter Inc.
American Securities LLC
American Standard Energy Corp.
American Water Works Company Inc.
American Well Service LLP
American Wellhead, Llc
Americas Petrogas
Amerisur Resources Plc
Ameroil Corporation
Aminex Plc
Amistad Energy Partners LLC
Amplify Energy Corp.
Amvest Corporation
Anadarko Petroleum Corp
Anatolia Energy Corp
Anchor Point Energy Llc
Andeavor
Anderson Energy Ltd
Anegada Energy Corp.
Angelus Private Equity Group
Angle Energy, Inc.
Anglo Canadian Oil Corp.
Anglo-Suisse Offshore Partners Llc
Anp
Anschutz Exploration Corporation
Anschutz Morocco Corporation
Antares Energy Ltd
Antero Midstream Corporation
Antero Resources
Anterra Energy, Inc.
Antrim Energy, Inc.
Ap Petroleum Company Llc
Apache Corp
Apax Partners
Apco Oil & Gas International Inc.
APEG Energy LP
Apergy Corp.
Apollo Global Management, Llc
Approach Resources, Inc.
Aqua Terra Water Management
Aquinas Energy Resources Inc.
Arabella Exploration Inc.
Arc Energy Trust
ARC Financial Corp
ARC Logistics Partners Lp
Arc Resources Ltd.
Arcadia Expro Namibia
Arcan Resources Ltd.
Archer Petroleum
Archer Well Services
Archrock, Inc.
Arclight Capital Partners Llc
ArcLight Energy Partners Fund VI, L.P.
Arena Resources, Inc.
Ares Management Lp
Aresco Lp
Arete Industries, Inc.
Argent Energy Trust
Argonaut Private Equity
Argos Resources Ltd
Aria Rose Oilfield Solutions
Arkoma Drilling LP
Armada Oil, Inc.
Armour Energy Ltd.
Armstrong Energy Corp
Armstrong Oil & Gas, Inc.
Aroway Energy Inc.
Arpetrol Ltd.
Arris Operating Company
Arriva Energy Inc.
Arrow Midstream Holdings Llc
Arsenal Capital Partners
Arsenal Energy Inc.
Artek Exploration Ltd.
Artisan Energy Corporation
As Norske Shell
Ascent Energy Inc.
Ascent Resources LLC
Askarii Resources LLC
Aspect Abundant Shale Lp
Aspen Exploration
Aspenleaf Energy Ltd.
Assala Energy Holdings Ltd
Athabasca Oil Corp
Athlon Energy Inc.
Athlon Solutions LLC
Atinum Partners Co.
Atlantic Petroleum
Atlas America Inc.
Atlas Energy Group Llc
Atlas Energy, L.P
Atlas Pipeline Partners Lp
Atlas Resource Partners, L.P.
Atmos Energy
ATP Oil & Gas Corp.
ATX Energy Partners
Aurelian Oil & Gas
Aurora Energy Partners
Aurora Oil & Gas Ltd.
Australis Oil & Gas Limited
Avalon Exploration, Inc.
Avana Petroleum Limited
Avanti Exploration La Llc
Avatar Energy Ltd.
Aveda Transportation and Energy Services
Avenger Oil Tools
Avere Energy Inc.
Avista Capital Partners
Awe Limited
Azabache Energy Inc.
Azimuth Limited
Azipac Ltd
Azure Midstream
Badger Daylighting Ltd.
Baker Hughes Company
Bakken Energy Corp.
Bakken Hunter Llc
Bakken Resources, Inc.
Ball Winch Pipeline Services Llc
Bandolier Energy Llc
Bankers Petroleum Ltd.
Barcas Field Services Llc
Baron Energy Inc.
Barrick Energy Inc.
Basalt Infrastructure Partners II GP Limited
Baseline Oil & Gas Corp.
Basf Se
Basic Energy Services Inc.
Basin Transload Llc
Battalion Oil Corp.
Battleground Oil Specialty Terminal Company
Bayerngas Norge
Bayfield Energy Holdings Plc
Bayou Bend Petroleum
Bayou City Energy Management LLC
Bayou Workover Services LLC
Bayport International Holdings Inc.
Bays Exploration Inc.
Bayshore Energy TX LLC
Bayswater Exploration and Production
Baytex Energy Corp.
BC Operating Inc
BCE-Mach II LLC
BCE-Mach III LLC
Bcm Energy Partners, Inc.
Beach Energy Limited
Bear Tracker Energy, Llc
Beard Subsidiary
Beaumont Energy Inc.
Beckman Production Services Llc
Bellamont Exploration Ltd.
Bellatrix Exploration Ltd.
Benefit Street Partners LLC
Bengal Energy Ltd
Bennu Oil and Gas Llc
Berkshire Hathaway Inc.
Berry Corporation
BG Group
BHP Billiton Limited
Big Country Energy Services Inc.
Big Horn Gas Gathering
Big Lake Services Llc
Big Sky Petroleum Corp.
Big Star Oil & Gas LLC
Bill Barrett Corp.
Birch Hill Equity Partners Management
Birch Lake Energy Inc.
Birch Permian Holdings
Birchcliff Energy Ltd.
Birchill Exploration Corp
Bison Midstream Llc
Bison Oilfield Services LLC
Bison Petroleum Corp.
BJ Services Company
BKV Operating, LLC
Black Bear Transmission LLC
Black Bison Water Services Llc
Black Diamond Oil, Inc.
Black Elk Energy
Black Hills Corporation
Black Mountain Disposal
Black Mountain Oil & Gas LLC
Black Oak Resources Llc
Black Raven Energy Inc.
Black Ridge Oil & Gas, Inc.
Black Sable Energy Llc
Black Shire Energy Inc.
Black Spruce Exploration
Black Stone Minerals, L.P.
Black Swan Energy Ltd.
Black Water Services Llc
Black Wolf Enterprises Llc
Blackbird Energy Inc.
Blackbrush Oil & Gas Llc
Blackdog Resources Ltd.
Blackeagle Energy Services
Blackgate Resources, Llc
BlackGold Capital Management
Blackhawk Midstream LLC
Blackhawk Specialty Tools LLC
Blackland Park Exploration Ltd
Blackpearl Resources, Inc.
Blackriver Petroleum Llc
Blackrock Inc.
Blacksand Energy Llc
Blackspur Oil Corp
Blacksteel Energy, Inc.
Blackstone
Blackwater Midstream Corp.
Blackwood Ventures Llc
Blaze Energy Corp.
Blue Dolphin Energy Company
Blue Earth Resources Inc.
Blue Energy Ltd.
Blue Pacific Assets Corp.
Blue Racer Midstream Llc
Blue Ridge Mountain Resources Inc.
Blue Sky Langsa Ltd.
Blue Stone Oil & Gas, Llc
Blue Whale Energy
Bluecreek Energy Inc.
Blueknight Energy Partners, L.P.
Bluestack Energy Ltd
Bluestone Energy Partners
Bluestone Natural Resources II LLC
Blugrass Energy, Inc.
BNK Petroleum Inc.
Boardwalk Pipeline Partners, Lp
Bodel Holdings LLC
Bold Energy III LLC
Bonanza Creek Energy, Inc.
Bonavista Energy Corp
Bonterra Energy Corp
Boots and Coots
Bopco Lp
Borealis Infrastructure
Boskalis
Bow Energy Limited
Bow River Energy Ltd.
Bow Valley Energy Ltd
Bowriver Development Canada Ltd.
BP Plc
Bps Operating Services Llc
Bpz Resources, Inc.
Brammer Engineering, Inc
Bravo Natural Resources Llc
Brazos Midstream Holdings Llc
Breitburn Energy Partners L.P.
Breitling Energy Corporation
Bri-Chem Corp.
Bridas Corp.
Bridas Energy USA, Inc.
Bridge Energy
Bridgeport Pty Ltd.
Brigham Exploration Co.
Brigham Resources, LLC
Brightoil Petroleum Holdings, Ltd.
Brighton Oil and Gas
Brishlin Resources Inc.
Bristol Bay Native Corporation
Britco Lp
Broad Oak Energy, Inc.
Brookfield Asset Management Inc.
Brookfield Infrastructure Group
Brookside Energy Limited
Brownstone Energy Inc.
Bruin E&P Partners
Brushy Resources Inc.
Bs&w Solutions Llc
BTA Oil Producer LLC
Btg Pactual Oil & Gs Participaes S.A.
Buccaneer Energy Ltd.
Buckeye Partners Lp
Buckhorn Energy Services Llc
Buckhorn Resources
Bucking Horse Energy, Inc.
Burgess Energy Holdings LLC
Burlington Resources Inc.
BWC Terminals
BXP Partners IV LP
Byron Energy Pty Ltd
C&c Energia Ltd.
C&E Production, LLC
Caballo Energy Llc
Cabeltel
Cabot Oil & Gas Corp
Cadogan Petroleum Plc
Cadre Services Inc.
Caerus Oil and Gas Llc
Caiman Eastern Midstream Llc
Caiman Energy Ii
Cairn Energy Plc
Caiterra International Energy Corp.
Caithness Petroleum Limited
Calfrac Well Services Ltd.
California Resources Corp.
Calik Holding A.S.
Calima Energy Inc.
Callon Petroleum Co.
Calmena Energy Services Inc.
Caltex Energy Inc
Calumet Florida, L.L.C.
Calumet Oil Company
Calumet Specialty Products Partners, L.P.
Calvalley Petroleum Inc.
Calyx Energy Llc
Cam Trucking and Well Service
Camber Energy Inc.
Cameron International Corporation
Campbell Development Group LLC
Canaan Natural Gas Pe Funds
Canaan Resource Partners
Canacol Energy Ltd.
Canada Energy Partners Inc
Canada Pension Plan Investment Board (CPPIB)
Canadian Energy Services & Technology Corp.
Canadian Natural Resources (CNRL)
Canadian Oil Sands Limited
Canadian Pan Ocean Limited
Canamax Energy Ltd.
Canary Llc
Canbriam Energy
Candax Energy Inc.
Canelson Drilling Inc.
Canera Energy Corp.
Canexus Corp.
Cano Petroleum, Inc.
Cantera Energy LLC
Cantex Energy Corporation
Canyon Creek Energy LLC
Canyon Services Group Inc.
Capco Energy
Capital City Energy Group
Capital International Private Equity Fund Vi L.P.
Caprock Midstream
Caprock Oil Inc.
Caracal Energy
Carbon Appalachian Company, LLC
Carbon Energy Corp.
Carbon Natural Gas Company
Cardiff Energy Corp.
Cardinal Energy Group Inc.
Cardinal Energy Ltd.
Cardinal Gas Storage Partners
Cardinal Midstream
Cardno
Carmen Energy Inc.
Carmeuse Holding S.A.
Carnarvon Hibiscus
Carnarvon Petroleum Ltd.
Carr Resources Inc.
Carrier Energy Partners
Carrier Energy Partners Ii Llc
Carrizo Oil & Gas Inc.
Cascade Kelly Holdings LLC
Casillas Petroleum Corp
Caspian Energy Inc.
Castex Energy Inc
Castle Gas Company, Inc.
Castleton Commodities International Llc
Castleton Resources LLC
Caterpillar Inc.
Cavu Resources Inc.
Caza Oil & Gas, Inc.
Cbm Asia Development Corp
Ceiba Energy Services Inc.
Celtic Exploration Ltd.
Celtique Energie
Ceno Energy Ltd.
Cenovus Energy Inc.
Centennial Resource Development
Centerpoint Energy, Inc.
Central Petroleum Ltd.
Central Resources, Inc
Centrica Plc
Century Expl Houston
CEP International Petroleum Ltd.
Cequence Energy Ltd.
Cerberus Capital Management
CGG
Cgx Energy Inc.
Challenger Energy Ltd
Champion Technologies
Chandler Energy Llc
Chaparral Energy
Charger Shale Oil Co., LLC
Chariot Oil and Gas
Charlotte Resources Ltd
Chesapeake Energy Corp
Chesapeake Midstream Partners, L.P.
Chesapeake Waste Solutions
Chevron Corp
Cheyenne Petroleum Co
Cheyenne Plains Pipeline
Chicago Energy Associates
Chief Gathering Llc
Chief Holdings Llc
Chief Oil & Gas Llc
Chief Resources Llc
Chieftain Sand and Proppant, Llc
Chiltepin Resources Llc
Chimney Sweep Oil and Gas Lllp
China Gas Holdings Limited
China Kinwa High Technology Company Ltd
China North East Petroleum Holdings Limited
China Petroleum & Chemical Corp.
Chinook Energy, Inc.
Chisholm Energy Holdings LLC
Chisholm Oil & Gas LLC
Choice Completion Systems
Chrysaor
Cieco Energy
Cienco Energy Ventures
Cierra Marine Lp
CIG Logistics
Cimarex Energy Co.
Cimarron Energy Inc.
Cinco County Barnett Shale Llc
Cinco Resources, Inc.
Circle Star Energy Corp.
Citadel Energy Services Llc
Citadel Exploration Inc
Citation Oil & Gas Corp.
Citation Resources Ltd.
Citizen Energy Holdings LLC
Citizen Energy II LLC
Citizen Energy III LLC
Citrus Energy Corporation
City of Dallas
Civitas Resources Inc.
CJ Energy Services Inc.
Cjsc Chedty Neft
Clariant
Clayton Williams Energy Inc.
Clearfield Energy, Inc.
Clearview Resources Ltd.
Cloud Peak Energy Inc.
Clough Limited
Cmc Machine Works Llc
Cndoc
CNOOC Limited
CNPC
CNX Midstream Partners
CNX Resources
Coachman Energy Partners Llc
Coastal Energy Co.
Cobalt Environmental Solutions
Cobalt International Energy, Inc.
Cobra Oil & Gas Corp.
Cochon Properties Llc
Cohort Energy Company
Coldren Resources Lp
Colgate Energy Partners III LLC
Collins and Young, L.L.C.
Colony Capital
Colony Energy LLC
Columbia Natural Resources, Llc
Columbia Pipeline Group Inc.
Comancheria Energy Resources LLC
Common Resources Llc
Compass Operating Llc
Compressor Systems Inc.
Compton Petroleum Corp.
Comstock Resources Inc.
Cona Resources Ltd.
Concho Resources, Inc.
Condor Petroleum
Cone Midstream Partners Lp
ConocoPhillips
Conquest Completion Services, LLC
Consol Energy Inc.
Consolidated Oil and Gas
Constellation Energy Group Inc.
Contact Exploration Inc.
Contango Oil & Gas Co.
Continental Resources, Inc.
Continuum Energy Services
Converge Midstream LLC
Cooper Energy Limited
Copano Energy Llc
Coral Hill Energy Ltd
Cordero Energy Resources LLC
Cordillera Energy Partners
Cordillera Energy Partners Iii
Cordillera Texas, L.P.
Core Appalachia
Core Energy
Core International LLC
Core Laboratories N.V.
Core Resource Management, Inc.
Corenergy Infrastructure Trust
Corinthian Oil Corp.
Coronado Midstream Llc
Corterra Energy Operating LLC
Cortona Energy
Costar Midstream, L.L.C.
Covanta Holding Corporation
Covey Park Energy LLC
Cox Operating LLC
CP Energy Services
CP Exploration II, LLC
CP Exploration II, LLC
Cp Resources Llc
Cr Innovations Ag
Craft Oil Ltd
Craig Group
Credo Petroleum Corp.
Crescent Companies
Crescent Point Energy Corp.
Crescent Terminals Llc
Crestline Investors Inc.
Crestone Peak Resources LLC
Crestwood Equity Partners LP
Crestwood Holdings Partners Llc
Crestwood Midstream Partners Lp
Cretic Energy Services
Crew Energy Inc.
Crimson Energy Partners II, LLC
Crimson Energy Partners III, LLC
Crimson Exploration Inc.
Crocotta Energy Inc.
Cross Country Pipeline Supply Co. Inc.
Crosstex Energy Lp
Crow Creek Energy Ii Llc
Crown Oil Partners IV LP
Crown Oil Partners V Lp
Crown Point Energy Inc.
Crownrock, Lp
Crs Proppants
Crude Energy Llc
Crump Energy Partners LLC
Crusader Energy Group
CSI Compressco LP
CSL Capital Management
CT Energy Holding SRL
Cuadrilla Resources Ltd.
Cub Energy Inc.
Cubic Energy Inc.
Cubo Energy Plc
Cuda Energy
Curtiss-Wright Corp.
Cutpick Energy Inc.
CWC Energy Services Corp
Cypress Energy Partners, L.P.
D&i Silica, Llc
Daewoo International Corp.
Dalea Partners
Dana Petroleum
Dana Petroleum Plc
Danish Energy Authority
Darby Private Equity
Dart Energy Limited
Davis Petroleum Acquisition Corp.
Daylight Energy Ltd.
DCP Midstream LP
DEA Deutsche Erdoel AG
Declar Oil & Gas, Inc.
Deep Gulf Energy II
Deep Sea Supply Plc
Deep Well Oil and Gas Inc.
Deeprock Development
Deethree Exploration Ltd.
Dejour Energy Inc.
Dekania Corporation
Delek Drilling
Delek Energy
Delek Logistics Partners, LP
Delek Us Holdings
Delphi Energy Corp.
Delta Petroleum Corp.
Denbury Inc.
Derby Resources
Desert Ntd Llc
Det Norske
Development Capital Resources
Deventa Energy Inc.
Deventa Land Corp
Devon Energy Corp
Diamond Offshore Drilling, Inc.
Diamondback Energy, Inc.
Diaz Resources Ltd.
Dimension Energy Services
Direct Energy
Direct Petroleum Bulgaria Eood
Direct Petroleum Morocco Inc.
Discovery Midstream Holdings LLC
Diverse Energy Investments Llc
Diversified Gas & Oil
Diversified Resources Inc
Dixie Energy Trust
DJR Energy
Dno International Asa
Dnr Oil & Gas Co
Dockwise
Dog Day Inc.
Dominion Energy
Dominion Midstream Partners Lp
Dominion Resources, Inc.
Donnybrook Energy Inc.
Donnycreek Energy Inc.
Doral Energy Corp.
Dorchester Minerals Lp
Double Eagle Development
Double Eagle Energy Permian LLC
DoublePoint Energy LLC
Dove Energy Bv
Dover Corporation
Dow Chemical
Dow Inc.
Drakkar Energy Ltd.
Dresser Rand Group Inc
Dril-Quip, Inc.
Drillsearch Energy, Ltd.
Dte Gas and Oil Company
DTE Midstream
Duma Energy Corp.
Dune Energy Inc.
Duval Lease Services
Duvernay Oil Corp
Dxp Enterprises, Inc.
Dyami Energy Llc
Dynamic Offshore Resources, Llc
E.On
E2o Pty Ltd
Eagle Chief Midstream, Llc
Eagle Downhole Solutions Llc
Eagle Energy Exploration Llc
Eagle Energy Inc.
Eagle Energy Partners LLC
Eagle Energy Production Llc
Eagle Energy Trust
Eagle Ford Minerals Llc
Eagle Ford Oil & Gas Corp.
Eagle Materials Inc
Eagle Minerals Inc.
Eagle Oil & Gas Co
Eagle Rock Energy Partners Lp
EagleClaw Midstream LLC
Eagleford Energy Inc.
Eagleton Engineering, Llc
Earthstone Energy Inc.
East Resources, Inc
Easton Energy LLC
Ecco Energy Corp.
Echo Energy
Eclipse Ior Services Llc
Eclipse Resources Corp.
Eco-Energy Inc.
Eco-Stim Energy Solutions, Inc.
Ecolab Inc.
Ecopetrol S.A.
Edf Trading Rescsllc
Edge Petroleum Corporation
EdgeMarc Energy
Edgen Group Inc.
Edgon Resources Plc
Edison SPA
EE3, LLC
EF Resources Inc.
Egdon Resources Plc
Egpi Firecreek Inc.
EIG Global Energy Partners, Llc
Eig Petroleum
El Paso Corp.
El Paso Pipeline Partners, L.P.
Elcrest Exploration and Production Nigeria Ltd
Element Petroleum III LLC
Element Petroleum Operating Llc
Element Petroleum, Lp
Eleon Operators Llc
Elevate Midstream Partners LLC
Elite Compression Services LLC
Elk Petroleum Limited
Elkhorn Holdings Inc.
Elkhorn Resources
Elkwater Resources Ltd.
Ellora Energy
Elm Ridge Exploration Co.
Ember Resources Inc.
Emerald Oil Inc
Emerge Energy Services
Emerge Oil & Gas, Inc.
Emerson
Emkey Resources Llc
Empire Energy Ep
Empire Petroleum Corp.
Empresa Nacional de Petroleo
Empyrean Energy Plc
Emvelco Corp
Enable Midstream Partners Lp
Enbridge Energy Partners Lp
Enbridge Inc.
Enbridge Income Fund Holdings Inc.
Encap Flatrock Midstream
Encap Investments
Encino Acquisition Partners
Encino Energy LLC
Encore Acquisition Company
Encore Energy Inc.
Encore Energy Partners Lp
Endeavor Energy Resources
Endeavour International Corp
Endurance Energy
Endurance Resources Llc
Enduring Resources, Llc
Enduro Resource Partners II L.P.
Enegi Oil Plc
Enel
Energean Oil & Gas
Energen Corp.
Energulf Resources
Energy & Minerals Group
Energy 11 Operating Company, LLC
Energy 11, L.P.
Energy and Exploration Partners LLC
Energy Capital Partners
Energy Corporation of America
Energy Hunter Resources
Energy Maintenance Services (EMS)
Energy Partners Ltd.
Energy Resource Technology
Energy Revenue America, Inc.
Energy Spectrum Capital
Energy Transfer Equity, L.P.
Energy Transfer LP
Energy Transfer Partners Lp
Energy XXI Gulf Coast, Inc
Energyquest Ii Llc
Energyquest Resources Lp
Enerjex Resources, Inc.
Enerplus Corp
Enerven Compression Llc
Enervest Ltd.
Engie E&P Deutschland GmbH
Eni S.P.A
EnLink Midstream, LLC
Enquest
EnQuest PLC
Ensco Plc
Enseco Energy Services Corporation
Enserco Midstream Llc
Enservco Corp
Ensign Natural Resources LLC
Entek Energy Ltd.
Enterprise Energy
Enterprise Energy Resources Ltd.
Enterprise Group, Inc.
Enterprise Products Partners LP
Enterra Energy Trust
Enven Energy
EnWater Solutions LLC
EOG Resources, Inc.
Eoi Eagle Operating Inc
EP Energy Corp
Epcor Water (Usa) Inc.
Epic Energy
EPL Oil & Gas, Inc.
Epsilon Energy Ltd.
EQM Midstream Partners, LP
EQT Corp
Equal Energy Ltd.
Equilon Enterprises LLC
Equinor
Equitrans Midstream Corp.
Erg Resources
Ergon-Texas Pipeline, Inc.
Erick Flowback Services Llc
Erick's Holdings LLC
Erin Energy Corp.
Escalera Resources Co.
Escambia Asset Company
Escondido Resources Ii, Llc
Escondido Resources Llc
Esrey Energy Ltd.
Esso (Thailand) Public Company Ltd
Eternal Energy Corp.
Euramerica Energy Inc.
Eureka Energy Ltd.
Eureka Midstream LLC
EV Energy Partners Lp
Evergreen Natural Resources LLC
Evolution Midstream LLC
Evolution Petroleum Corp.
Excalibur Resources LLC
Excelaron Llc
Exclusive Energy Services
Exco Resources Inc.
Exhile Resources Inc
EXL Petroleum LP
Exoma Energy Limited
Exoro Energy
Expedition Water Solutions
Explorer Pipeline Company
Explortex Energy, Inc
Exponent Energy III LLC
Express Energy Services
Exterran Corporation
Extract Petroleum Limited
Extraction Oil and Gas
Exxel Energy Corporation
ExxonMobil
Fairborne Energy Ltd
Fairmount Minerals
Fairmount Santrol
Fairway Energy Partners LLC
Fairway Resources Partners II LLC
Fairway Resources Partners III, LLC
Falcon Crest Energy
Falcon E&p Opportunities Fund Lp
Falcon Oil & Gas Ltd.
Far Limited
Far Vista Petroleum Corp
Faroe Petroleum
Fastnet Oil & Gas Plc
FDL Operating LLC
Felix Energy Llc
Felix Water LLC
Ferrellgas Lp
Ferus Natural Gas Fuels
Fidelity Exploration & Production
Fieldpoint Petroleum Corp.
Fieldtek Holdings Ltd.
Fieldwood Energy Llc
Fifth Creek Energy
Finder Exploration Corp
Fineglade Ltd.
Finley Resources Inc
Firehawk Oil and Gas
Firewheel Energy Llc
First Infrastructure Capital Advisors LLC
First Mountain Exploration Ltd.
First Oil Expro Limited
First Reserve Corp
First Titan Corp.
Five Point Capital Partners
Five States Energy Company, Llc
Flatonia Energy Llc
Fleur De Lis Energy Llc (FDL)
Flint Hills Resources
Flotek Industries Inc.
Fluid Delivery Solutions Llc
FluidOil Limited
Fluxys
Flying J Inc.
Flywheel Energy LLC
Fmc Technologies, Inc.
Focus Energy Trust
Foothills Exploration Inc.
Forbes Energy Services Ltd.
Force Environmental Solutions LLC
Foreland Investments Lp
Forent Energy Ltd.
Forest Gate Energy, Inc.
Forest Oil Corp.
Forestar Group Inc.
Forge Energy LLC
Forge Petroleum Corporation
Formation Energy Lp
Formcap Corporation
Fortem Resources Inc.
Fortress Investment Group LLC
Fortuna Energy
Fortuna Resources Holdings, LLC
Fortune Oil Plc
Forum Energy Technologies, Inc.
Foster Wheeler Ag
Founders Oil and Gas LLC
Fountain Quail Energy Services
Fountain Quail Water Treatment
Four Corners Petroleum II LLC
Four Sevens Operating Co, Ltd
Fourpoint Energy Llc
Fox Petroleum Inc.
Frac Resources, Llc
Frack Shack Inc.
Fracrock International, Inc
Franco-Nevada Corporation
Franklin Mountain Energy, LLC
Franks International
Freehold Royalties Ltd.
Freepoint Commodities Llc
Freepoint Resources Llc
Freeport-Mcmoran Inc.
Fremont Petroleum
Fremont Petroleum
Front Range Resources Ltd.
Frontier Energy Group Llc
Frontier Gas Services, Llc
Frontier Midstream Solutions Llc
FTS International Inc.
Fulucai Productions Ltd.
Fx Energy Inc.
G2x Energy
Gail (India) Limited
Galaxy Energy Inc.
Gale Force Petroleum Inc.
Galveston Bay Energy
Gardner Denver Inc
Gas Natural Inc.
Gasco Energy Inc.
Gasfrac Energy Services Inc.
Gasnor
Gastar Exploration Inc
Gastem Inc.
Gaston Kearby
Gavilon Llc
Gazprom Neft
Gdf Suez S.A.
GE Energy Financial Services
Gear Energy Ltd
Genel Energy
General Electric Company
General Exploration Partners Inc.
Genesis Energy Lp
Geo-Jade Petroleum Corporation
Geokinetics Inc.
Geoknowledge
Geomatics Data Solutions Inc.
Geomet, Inc.
Geopark Limited
Geopetrol Resources Ltd.
Georesources, Inc.
Georgia Exploration, Inc.
Georox Resources Inc.
Geosouthern Energy
GEP Haynesville LLC
Gestion Jerico Inc.
Gfb Acquisition I Lp
Gibson Energy Inc.
Glacier Energy Services
Glencore Xstrata Plc
Global Infrastructure Partners
Global Oil & Gas Services Ltd.
Global Partners Lp
Global Water Resources, Inc.
Glori Energy Inc.
Gmt Exploration Llc
Gmx Resources Inc.
Golar Lng Partners Lp
Gold Point Energy
Goldman Sachs Group Inc
Goldstrike Resources Ltd.
Gondola Resources LLC
Goodnight Midstream
Goodrich Petroleum Corp.
Goose Landing Sand Co. Llc
Gp Ii Energy Inc.
Grafton Energy Co I Ltd.
Gran Tierra Energy, Inc.
Granite Oil Corp
Gravity Midstream Llc
Gravity Oilfield Services Inc.
Grayson Mill Energy
Great Prairie Energy Services Inc.
Great River Hydro LLC
Great Western Oil & Gas Co., Llc
Greene's Energy Group
Greenfield Midstream
Greenhunter Resources, Inc.
Greenwell Energy Solutions
Grenadier Energy Partners
Grenadier Energy Partners II LLC
Greywacke Exploration Ltd.
Gryphon Production Company
GSO Capital Partners Lp
Guatemala Production
Guide Exploration Ltd.
Guidon Energy
Gulf Coast Western
Gulfport Energy Corp.
Gulfsands Petroleum Plc
Gulftex Energy
GulfTex Energy III
H2O Midstream LLC
Haimo Oil & Gas Llc
Hall Phoenix Energy Llc
Hallador Energy Company
Halliburton
Hallwood Energy Corporation
Haloroc Technologies Inc.
Hanson Energy
Harbinger Group Inc.
Harbour Energy Ltd.
Harel Group
Hart Oilfield Rentals Ltd.
Harvest Midstream Co.
Harvest Natural Resources Inc.
Harvest Oil
Harvest Oil & Gas Corp.
Hawk Exploration, Ltd.
Hawkeye Midstream LLC
Hawkwood Energy Llc
Haymaker Resources
Hce Operating, Llc
Headington Oil Company
Headwater Exploration Inc.
Healthbridge, Inc.
Heathercrest Energy Ltd.
Helis Oil & Gas Company Llc
Helix Energy Solutions
Helmerich & Payne Inc.
Hemisphere Energy Corp
Henderson & Associates
Henry Resources Llc
Hercules Offshore, Inc.
Heritage Oil Plc
Heroes Energy Solutions
Hess Corp
Hess Midstream LP
Heyco Energy Group, Inc.
HG Energy II LLC
Hi-Crush Inc
Hi-Crush Proppants Llc
Hibernia Resources Llc
Hicks Acquisition Co. I
High Arctic Energy Services
Highmount Exploration & Production
HighPeak Energy
HighPoint Resources
Highrock Energy
Highway Pipeline Inc.
Highwood Oil Company Ltd.
Hiland Partners
Hilcorp Energy Company
Hillcorp Energy Llp
Hillstone Environmental Partners LLC
Hillwood Energy Alabama Lp
Hillwood Oil & Gas, L.P.
Hinto Energy Inc.
Holly Energy Partners L.P
Hollyfrontier Corporation
Holms Energy, Llc
Honeywell International Inc.
Hoover Energy Partners Lp
Horizon Energy Ltd.
Horizon Energy Partners LLC
Horizon Oil Ltd.
Horizon Petroleum Plc
Hornbeck Offshore
Hornet Midstream
Horsehead Holding Corp.
Howard Energy Partners
Howard Midstream Energy Partners Llc
Howard Weil Incorporated
HRG GROUP, INC.
Hrt Participoes Em Petroleo Sa
Hungarian Oil and Gas Public Limited Company
Hunt Oil Company
Hunt Petroleum Corp.
Hunting Dog Capital, Llc
Huron Energy Corporation
Hurricane Services Inc.
Husky Energy Inc.
Husky Ventures Inc
Hutton Energy
Hydrocarb Corporation
Hydrocarbon Exploration Peru Ltd.
Hyperdynamics Corporation
Hytop Well Servicing Inc.
I Squared Capital
I-Tec Well Solutions Llc
Icon Energy Ltd.
Ideal Oilfield Disposal Llc
IFM Investors Pty Ltd
Igas Energy Plc
Ignis Petroleum Group
Ihs Inc.
Ikkuma Resources Corp
iLandMan
ILX Holdings LLC
Impact Exploration and Production LLC
Impact Oil and Gas Limited
Imperial Oil Limited
Imperial Oil Resources Ltd.
Implantable Vision Inc.
Independence Energy Corp.
Independence Resources Management
Independent Oil and Gas Plc
Indian Oil Corporation
Indigo Natural Resources LLC
Ineos Group
Inergy Midstream, L.P.
Inergy, L.P.
Infinity Cross Border Acquisition Corp.
Ingersoll-Rand Plc
Innex California, Inc.
Innex Energy Inc.
Inpex Corp
InPlay Oil Corp.
InstarAGF Asset Management Inc.
Integrated Control Solutions
Inter Pipeline Ltd.
International Design Engineering and Services Ltd
International Frontier Resources Corp
International Paper
International Petroleum Corp.
Interoil Corporation
Interra Resources Ltd.
Invicta Energy Corp.
IOG Capital LP
Iona Energy Inc.
Ipr North America Holdings Corp.
Iroc Energy Services Corp.
Iron Bridge Resources Inc.
Irongate Energy Services
Ironhorse Oil & Gas Inc.
IronHorse Resources LLC
Ironwood Midstream Energy Partners II, LLC
Ironwood Oil & Gas Llc
Island Energy Partners Llc
ISQ Global Infrastructure Fund
Isramco Inc.
Itera Holdings Limited
Ithaca Energy Inc.
Its Tubular Services (Holdings) Ltd.
Ivanhoe Energy, Inc.
J Cleo Thompson
J-W Energy Company
J-W Wireline Company
Jacobs Engineering Group Inc.
Jagged Peak Energy Inc
Japan Australia Lng
Japan Petroleum Exploration Co. Ltd.
Javelina Oilfield Inc.
Jayhawk Energy, Inc.
Jbl Energy Partners
Jed Oil
Jefferies Group, Inc.
Jericho Oil Corp
Jetstream Oil and Gas
Jetta Operating Co Inc
Jetta Permian
Jm Cox Resources Lp
Jmi Equity
John R Stearns
Jonah Energy Llc
Jones Energy II Inc
Jones Energy Inc.
Journey Energy Inc
Jovian Resources LLC
JP Energy Partners LP
JP Morgan Securities
JPM EOC Operating Inc.
Juneau Energy Inc
Juneau Oil & Gas LLC
Junex Inc.
Juniper Resources LLC
Juno Energy II LLC
Jupiter Resources
JW Operating LLC
JX Nippon Exploration and Production
K P Kauffman Company Inc
Kabe Exploration Inc.
Kaisen Energy Corp
Kaiser-Francis Oil Company
Kallisto Energy Corp
Kalnin Ventures LLC
Kanata Energy Group Ltd
Kansas Alliance Resources LLC
Karoon Gas Australia Ltd
Kasten Energy Inc
Kazmunaigas Exploration Production
Kcs Energy Inc.
Kea Petroleum Plc
Keane Group
Kelt Exploration Ltd.
Kent Production Llc
Kentz Corporation Ltd
Keppel Corporation Limited
Kerr-Mcgee Corp.
Key Energy Services Inc.
Key Link Assets Corp.
KeyBank
Keyera Corp.
Keystone Midstream Services
Keystone Royalty Corp.
Kib Energy Pte Ltd
Kicking Horse Energy Inc.
Kimbell Royalty Partners LP
Kimmeridge Energy
Kinder Morgan, Inc.
Kingfisher Midstream LLC
Kiowa Oil Company
Kiwi Acquisition Corp.
KJ Energy LLC
KLR Energy Acquisition Corp.
KLX Energy Services
Knight Energy Group
Koch Exploration Company, Llc
Koch Industries Inc.
Kodiak Gas Services, LLC
Kodiak Oil & Gas Corp.
Kogas Canada Ltd
Kohlberg Kravis Roberts & Co. (KKR)
Korea National Oil Corp
Kosmos Energy
Koynare Development Ltd.
Krescent Energy Partners Ii Lp
Krewe Energy LLC
Krisenergy Ltd.
Kulczyk Oil Ventures Inc.
Kuwait Foreign Petroleum Exploration Company
L & M Energy Ltd.
Lagoon Water Solutions
Lakewood Midstream
Lamanco Drilling Co.
Lander Energy Corporation
Landocean Energy Services Co. Ltd
Laramie Energy II LLC
Laredo Petroleum Inc.
Lariat Partners Lp
Lario Oil & Gas
Latigo Petroleum Inc.
Latigo Trucking Ltd
Laurel Mountain Energy Llc
Lb Foster Co.
Legacy Oil + Gas- Canada.
Legacy Reserves Lp
Legend Oil and Gas, Ltd.
Legend Production Holdings Llc
Legion Terminals Llc
Lehm Capital Partners, Ltd
Leni Gas & Oil
Leor Energy
Leor Resources LLC
Leucadia National Corp.
Leucrotta Exploration Inc.
Lewis Energy
LGX Oil + Gas Inc.
Liberty Energy Corp.
Liberty Oilfield Services
Liberty Resources II LLC
LIG Assets Inc.
Light Tower Rentals Inc.
Lighthouse Oil and Gas
Lighthouse Petroleum, Inc.
Lightstream Resources Ltd.
Lilis Energy Inc.
Lime Rock Partners
Lime Rock Resources
Linn Energy, Inc
Little Rock Resources
Lizeroux Oil & Gas
LLOG Exploration
Lng Energy Ltd.
Loews Corporation
Logan International Inc.
LOGOS Resources II
LOLA Energy
Lone Oak Acquisition Corporation
Lone Pine Resources Inc.
Lonestar Resources Ltd.
Lonestar West Inc
Long Run Exploration Ltd.
Longfellow Energy Lp
Longreach Oil Ltd.
Longview Oil Corp
Lothian Oil, Inc.
Loto Energy Ii
Lotus Midstream
Louis Dreyfus Highbridge Energy Llc
Louisiana Shelf Partners Lp
Lpc Crude Oil Marketing Llc
LRR Energy LP
Ls Power Group
Lubbock Energy Partners
Lucas Energy, Inc.
Lucid Energy Group II LLC
Lucid Energy Group Llc
Luco Energy Pty. Ltd.
Lufkin Industries Inc.
Lundin Petroleum
Luxe Energy II LLC
Luxe Energy Llc
Lynden Energy Corp.
M3 Appalachia Gathering Llc
Mach Resources
Mack Energy Company
Maclondon Energy Lp
Macquarie Bank Ltd.
Macquarie Capital Group Ltd.
Macquarie Infrastructure and Real Assets (MIRA)
Madalena Energy Inc.
Madison PetroGas Ltd.
Maersk Oil
Magellan Energy, Ltd.
Magellan Midstream Partners Lp
Magellan Petroleum Corp
Magna Energy Services LLC
Magnolia Oil & Gas
Magnolia Petroleum
Magnum Development Llc
Magnum Energy Inc.
Magnum Hunter Resources Corp.
Magnum Oil Tools
Maha Energy Us Inc
Mai Oil Operations, Inc.
Mainland Resources, Inc.
Mainline Energy Partners, LLC
Mainline Midstream, LLC
Mako Hydrocarbons Ltd.
Malloy Energy Co. Lc
Mammoth Energy Services Inc.
Manitok Energy Inc.
Manzano Energy Partners I & II
Mapan Energy Ltd
Maple Leaf 2012 Ii Energy Income Ltd
Maple Leaf Royalties Corp
Mar Ked Mineral Exploration, Inc.
Marathon Oil Corp
Marathon Petroleum Corporation
Marbob Energy Corporation
Mariner Energy, Inc.
Markwest Energy Partners, L.P.
Marlin Enrgy Res Llc
Marmac Field Services Inc.
Marquee Energy Ltd.
Marquette Exploration Llc
Mars Oil Pipeline Company
Marsa Energy Inc
Mart Resources Inc
Martin Midstream Partners Lp
Marubeni Corporation
Massif Oil & Gas
Mastec, Inc.
Matador Resources Company
Matmown, Inc.
Matrixx Resource Holdings Inc.
Maurel Et Prom
Maverick Drilling & Exploration Ltd
Maverick Engineering
Maverick Natural Resources LLC
Maverick Oilfield Services Ltd.
Maxxam Analytics
Mbi Oil Gas Llc
McCabe Petroleum
McKenzie Energy Partners LLC
MCM Energy Partners, LLC
Mcmoran Exploration Co.
MD America Energy LLC
MDU Resources Group Inc.
Meade Pipeline Co LLC
Medco Energi
Mediterranean Oil and Gas Company
MEG Energy
Meidu Holding Co. Ltd.
Melrose Resources Plc
Memorial Production Partners Lp
Memorial Resource Development Corp.
Meo Australia Ltd.
Meridian Petroleum Plc
Meridian Resource Corporation
Merit Energy Company
Meritage Midstream Services, LLC
Merrion Oil Gas Corp
Mesa Energy Holdings, Inc.
Mesquite Services LLC
Mexco Energy Corp
Mfc Industrial
Mgm Energy Corp
Microseismic Inc.
Mid-Con Energy Iii Llc
Mid-Con Energy Partners Lp
Mid-Con Petroleum LLC
Midamerican Energy Holdings Co.
Midcoast Energy Partners, L.P.
Middle Fork Energy Partners, LLC
Midstates Petroleum
Midway Energy Ltd.
Midwestern Oil and Gas Company Ltd
Millennium Energy Corp.
Miller Energy Resources, Inc.
Miller Thomson & Partners LLC
Minsk Energy Resources
Mission Creek Resources, LLC
Mission Well Services, Llc
Mistral Midstream Inc
Mitchell's Oil Field Services, Inc.
Mitra Energy Ltd
Mitsubishi Corporation
Mitsui & Co. Ltd.
Moda Midstream Llc
Modena Resources Ltd.
Mogul Energy International, Inc.
Mohican Operating Llc
Mol Group
Molopo Energy Limited
Momentum Midstream
Monarch Natural Gas Llc
Mondial Ventures Inc
Montage Resources Corp.
Montana Exploration Corp.
Montecito Offshore, Llc
Monterey Exploration Ltd.
Montrose Industries Limited
Morgan Creek Energy
Morgan Stanley
MorningStar Partners LP
Morrison Well Services Llc
Moss Creek Resources, LLC
Motive Drilling Technologies
Motley Services, LLC
Mount Bastion Oil And Gas
Mountain Capital Management
Mountaineer Keystone LLC
Mountaineer State Energy, Inc.
Mountainview Energy Ltd.
MPLX Lp
Mpx North Sea Limited
Mpx Resources
Ms Energy Services
Mtn Energy Inc
Mueller Exploration, Inc.
Multilift
Multisys Language Solutions, Inc.
Murphy Energy Corp
Murphy Oil Corp
Murray Energy Corporation
Mustang Extreme Environmental Services
Mvm Hungarian Electricity Limited
Mwm Energy Llc
N2
Nabors Industries Ltd.
Nadel and Gussman LLC
Nadra Ukrany
Nafta International BV
Nal Energy Corp
Nal Resources
Nalco
Nathan Oil LLC
National Fuel Gas Co.
National Gas Company of Trinidad and Tobago Ltd.
National Oilwell Varco, Inc.
National Process Equipment Inc.
Nations Oil and Gas Llc
Natural Resource Partners L.P.
Nautilus Poplar Llc
Navajo Nation Oil & Gas Co.
Navidad Resources, Llc
Navigator Energy Services LLC
Navitas Midstream Partners LLC
Navitas Petroleum
NCH Corporation
NCS Multistage
Nd Western Limited
Nearburg Exploration Co.
Neg Oil & Gas
NEO Energy
Neptune Energy Group Holdings Ltd.
Net Midstream
New Guinea Energy Ltd.
New Gulf Resources, Llc
New Source Energy Partners L.P.
New Standard Energy
New Star Energy Ltd.
New Times Energy Corp. Ltd.
New West Energy Services Inc.
New Western Energy Corporation
New World Oil and Gas Plc
New Zealand Energy Corporation
Newfield Exploration Co.
Newkumet Exploration Inc.
Newpark Environmental Services Llc
Newpark Resources Inc.
Newpek Llc
Newton Energy Corporation
Nexen Holdings Usa Inc.
Nexen Inc.
Next Generation Energy Corp.
Next Millennium Commercial Corp.
Nextera Energy Gas Producing, Llc
Nextera Energy Inc.
Nextera Energy Partners Lp
Nextera Energy Resources
Nextier Oilfield Solutions
Nexus Energy Ltd.
Nfr Energy
Ngas Resources Inc.
NGL Energy Partners Lp
Ngo Development Corp
Ngp Energy Capital Management Llc
Nido Petroleum Ltd.
Nielson and Associates
Nigerian National Petroleum Corp
Nighthawk Energy Plc
Nimin Energy Corp
Nine Energy Service, Inc.
Nisource Inc.
Nkembe Psc
Noble Corporation plc
Noble Energy Partners
Noble Energy, Inc.
Noble Midstream Partners LP
Noble Royalties, Inc
Noralis Inc.
Nordic Oil and Gas Ltd.
Norris Production Solutions
Norse Energy Corp. Asa
Norstra Energy Inc.
Nortex Corporation
Nortgas
North American Energy Exploration, Inc.
North American Energy Resources, Inc.
North American Oil & Gas Corp.
North American Petroleum Plc
North Energy
North Haven Infrastructure Partners II
North Sea Energy Inc.
North Sea Midstream Partners
Northcote Energy
Northern Blizzard Resources Inc
Northern Frac Proppants Llc
Northern Oil and Gas, Inc.
Northern Petroleum Plc
Northport Production Company
Northstar Offshore Group
Northwestern Energy
Northwoods Energy LLC
Nostra Terra Oil & Gas Company Plc
Nova Chemicals Corporation
Novatek
NOW Inc.
NP Resources LLC
Nucor Corporation
Nudevco Midstream Llc
Nuevo Midstream Dos Llc
Nuevo Midstream Llc
Nuloch Resources, Inc.
NuStar Energy L.P.
Nuverra Environmental Solutions
Nuvista Energy Ltd.
Nv Energy Inc.
Nwp Industries Inc
O-Tex Holdings Inc.
O-Tex Pumping LLC
Oak Ridge Natural Resources, LLC
Oak Valley Resources Llc
Oaks Disposal Services Llc
Oando Energy Resources Inc.
Oao Tmk
Oasis Midstream Partners LP
Oasis Petroleum Inc.
Oblaen Resources Llc
Obsidian Energy Ltd.
Occidental Petroleum Corp
Octanex N. L.
Odessa Pumps and Equipment Inc.
Odyssey Energy Ltd.
Odyssey Pipeline LLC
Oeg Offshore Group
Offshore Cleaning Systems, Llc
OGX Petroleo
Oil and Natural Gas Corporation of India
Oil India Ltd.
Oil Search Limited
Oil States International Inc.
Oildex
Oilfield Water Logistics
Oiltanking Partners Lp
Omineca Mining and Minerals Limited
Omni Energy Services Corp.
OMNI Environmental Solutions
OmniTRAX
Omron Oilfield and Marine Inc.
OMV Group
On Point Oilfield Operations LLC
On Site Water
One Stone Holdings II LP
OneEnergy Partners, LLC
Oneok Inc.
Oneok Partners, L.P.
Ongc Ltd.
Online Energy Inc.
Onshore Petroleum Company As
Ontario Teachers Pension Plan
Onyx Midstream Lp
Open Range Energy Corp.
Opon International Llc
Oppenheimer & Co Inc.
OPTrust
Oracle Energy Corp.
Orbit Energy Partners LLC
Orbit Petroleum
Origin Energy Ltd.
Orion Pipeline LLC
Orion Resource Partners
Orlen Upstream
Ormet Corporation
Orr Energy
Oryx Midstream Services Llc
Oryx Petroleum Corp
Osage Exploration and Development, Inc.
Osaka Gas Co.
Osburn Minerals
Osprey Energy Acquisition Corp.
Osum Oil Sands Corp
Osyka Resources, Llc
Otto Energy Limited
Output Exploration
Outrigger Energy Llc
Overflow Energy Llc
Overflow Energy Stack LLC
Ovintiv Inc
Oyster Oil and Gas Limited
P2 Energy Solutions
Pa Resources
PAA Natural Gas Storage, L.P.
Pacer Construction Holdings Corporation
Pacific Canbriam Energy
Pacific Energy Development
Pacific Exploration and Production Corp
Pacific Northwest Lng
Pacific Oil and Gas Ltd
Pacific Oil Company
Pacific Rubiales Energy Corp.
Packers Plus Energy Services Inc.
Painted Pony Energy Ltd.
Painted Pony Petroleum Ltd
Paleo Resources Inc.
Palliser Oil and Gas Corp.
Paloma Partners II, LLC
Paloma Partners Iii Llc
Paloma Partners IV, LLC
Palomar Natural Resources
Pan American Energy LLC
Pan American Oil Company
Pan Orient Energy
Pancontinental Oil and Gas
Pangean Energy Llc
Panhandle Oil and Gas Inc.
Panoro Energy Asa
Pantera Energy Company
Panterra Resource Corp.
Panther Energy Company II, LLC
Panther Energy Company, Llc
Par Pacific Holdings
Par Petroleum Corporation
Paradigm Ltd.
Paradigm Oil and Gas, Inc.
Parallel Resource Partners Llc
Paramax Resources Ltd.
Paramount Resources Ltd.
Parex Resources, Inc.
Paris Oil & Gas Corporation
Parsley Energy Inc.
Passport Energy Ltd.
Patagonia Oil Corp
Patara Oil & Gas Llc
Patriot Resourcs Inc
Patriot Well Solutions LLC
Patron Energy, Llc
Patterson-Uti Energy Inc.
Pavilion Energy Resources, Inc.
Paxton Energy Inc.
Payrock Energy Holdings LLC
Pbf Energy Inc.
PBF Logistics Lp
PCORE Exploration and Production I LLC
PDC Energy, Inc.
Peak Energy
Peak Oil and Gas
Peak Oilfield Service Company Llc
Peak Well Systems
Pearl Exploration and Production Ltd.
Pec Minerals L.P.
Pecos Gathering & Marketing, L.L.C.
PEDEVCO Corp.
Pegasus Optimization Managers LLC
Pegasus Resources
Pelican Energy Partners
Pembina Pipeline Corp
PEMEX
Pengrowth Energy Corp
Penn Virginia Corp
Penn Virginia Resource Partners Lp
Penn West Petroleum Ltd.
Pennant Energy Inc.
Pennenergy Resources Llc
Pennsylvania Services Corporation
Penntex Midstream Partners LLC
Peoples Energy Group
Peoples Energy Production Company
Peoples Natural Gas
Percussion Petroleum I LLC
Percussion Petroleum II, LLC
Perdure Petroleum LLC
Peregrine Petroleum Llc
Perella Weinberg Partners
Perenco
Perfomix Inc.
Performance Wellhead & Frac Components Inc.
Perisson Petroleum Corporation
Perpetual Energy Inc
Perry Point Holdings LLC
Perseville Investing Inc.
Pertamina
Petrel Resources
Petro Grande Llc
Petro One Energy Corp.
Petro River Oil Corp.
Petro River Oil Llc
Petro Viking Energy Inc.
Petro Vista Energy Corp.
Petro Waste Environmental LP
Petro-Canada Resources
Petro-Hunt LLC
Petroamerica Oil Corp
Petrobakken Energy Ltd.
Petrobank Energy and Resources Ltd.
Petrobras
Petrocapita Income Trust
Petroceltic International Plc
Petrochina Co. Ltd.
Petroedge Energy Iii Llc
Petroedge Energy Llc
Petroflow Energy
Petroforte International Ltd.
Petrofrontier Corp.
Petrogal, S.A.
Petrogas Company Inc.
Petrogas E&P
Petrogas Energy Corp.
Petroglobe Inc.
PetroGranada Limited
Petrohawk Energy Corporation
Petrohunter Energy Corp
Petrolatina Energy Ltd
PetroLegacy Energy II, LLC
Petroleum Development Corporation
Petroleum Exploration and Management
Petroleumbrunei
Petrolia Energy Corp.
Petrolia Se
Petrologistics Lp
Petromagdalena Energy Corp
Petromanas
Petrominerales
Petromont Colombia Sa
Petron Energy Ii Inc.
Petronas
Petronova Inc.
Petropoint Energy
Petroquest Energy Inc.
Petrosearch Energy
Petrosen
Petroshale Inc.
PetroShare Corp.
Petrosoma Ltd.
Petrotech Oil and Gas Inc.
Petrovietnam
Petrowest Corporation
Petrowest Energy Services
Petrox Resources Corporation
Petrus Resources Ltd.
Peyto Exploration & Development Corp
Pgi Energy, Inc.
PGNiG
Pharos Energy
Phillips 66
Phillips 66 Partners LP
Phillips Resources Inc
Phillips Specialty Products Inc.
Phoenix DAS
Phoenix Energy Holdings Ltd
PHX Minerals Inc.
Pieridae Energy
Pilgrim Petroleum Corporation
Pin Oak Energy Partners
Pin Oak Midstream LLC
Pine Cliff Energy Ltd.
Pinecrest Energy Inc.
Pinnacle Midstream Llc
Pinnergy Ltd
Pintail Oil and Gas, LLC
Pioneer Energy Services Corp.
Pioneer Natural Resources Co.
Pioneer Southwest Energy Partners L.P.
Pipeliner's Warehouse Inc.
Pipestone Energy Corp
Pivotal Petroleum Partners, LP
PKN Orlen SA
Plains All American Pipeline, L.P.
Plains Exploration & Production Company
Plains Gp Holdings Lp
Planet Gas Limited
Plantation Petroleum Holdings III, LLC.
Platinum Energy Resources, Inc.
Platte River Equity
Pluspetrol
Plymouth Exploration LLC
PMI Resources Ltd.
Pnoc-Ec
PO & G Resources LP
Pogo Producing Co.
Point Capital Barnett Shale Investors, G.P.
Point Energy Partners Petro LLC
Point Loma Energy Ltd.
Point Resources
Polar Petroleum Corporation
Polar Star Canadian Oil and Gas Inc
Polaris Drilling Inc.
Pony Oil LLC
Porto Energy
Post Oak Energy Capital Lp
Postrock Energy Corp
Powder Mountain Energy Ltd.
Power Associates International, Inc.
Ppi Group
Prairie Provident Resources Inc.
Prairiesky Royalty Ltd.
Prb Energy, Inc.
Prd Energy Inc.
Premier Oil
President Petroleum
Presidio Petroleum LLC
Preston Exploration
Pride Ventures
Primary Natural Resources Iii Llc
Primary Petroleum Corporation
Primavera Resources Corp.
PrimeEnergy Corp.
Primewest Energy
Primexx Energy Partners
Produced Water Absorbents
Progress Energy Canada Ltd.
Progress Energy Resources Corp
Progressive Resources Inc.
ProPetro Holding Corp.
Prosep Inc.
Protege Energy III LLC
Protege Energy LLC
Providence Exploration Llc
Providence Resources, Inc.
Provident Energy Trust
Pt Benakat Barat
Pt Pertamina
Pt Saka Energi Indonesia
PTTEP
Pulse Oil
Puma Energy Ltd.
Pura Vida Energy Nl
Pure Acquisition Corp.
Pure Energy Services Ltd
Pure Gas Partners
Pvr Partners, L.P.
Pyote Water Systems
Pyr Energy Corp.
Pyramid Oil Company
Qatar Investment Authority
Qatar Petroleum
Qep Field Services Company
QEP Midstream Partners Lp
QEP Resources, Inc.
QGEP Participacoes SA
QR Energy, Lp
QStar, LLC
Quadrant Energy Australia Limited
Quality Environmental Technologies
Quanah Energy LLC
Quanta Services, Inc
Quantum Energy Partners
Quantum Resources Management, Llc
Quattro Exploration and Production Ltd.
Quest Energy Partners, L.P.
Quest Resources
Questar Corp
Questerre Energy Corp.
Questfire Energy Corp.
Quicksilver Resources Inc.
Quintana Energy Services
R360 Environmental Solutions, Inc.
Rabb Resources Limited
Radiant Oil & Gas, Inc.
Raging Bull Oilfield Services LLC
Raging River Exploration Inc.
Raimount Energy Inc.
Ram Energy Resources, Inc.
Ram River Coal Corp.
Rampart Du Monde Partners Llc
Ramshorn Investments
Rancher Energy Corp.
Range Energy Resources, Inc.
Range Resources Corp
Range Resources Limited
Range Royalty Limited
Rangeford Resources, Inc.
Rangeland Energy
Ranger Energy Services
Rango Energy Inc.
Rattler Midstream LP
Raven Wing Resources
Ravenwood Energy Corp
Rawson Resources Ltd.
Razor Energy Corp.
Real Energy Corporation Limited
Realm Energy Intl Corp
Rebellion Energy, LLC
Recovery Energy, Inc.
Red Bluff Resources Holdings, LLC
RED Mountain Energy
Red River Energy
Red Rock Gathering Company Llc
Red Rock Resources, L.L.C.
Red Rocks Energy Partners LP
Red Stone Resources LLC
Red Willow Mid-Continent, Llc
Red Wolf Natural Resources LLC
Redhawk Resources Inc.
Redhill Resources Corp
Regency Energy Partners Lp
Reliance Energy Inc
Reliance Gathering LLC
Reliance Industries Limited
Reliance Marcellus II, LLC
Remington Oil and Gas
Renegade Petroleum Ltd.
Reostar Energy Corp.
Repsol E&p Usa Inc
Repsol S.A.
Republic Energy Inc.
Republic Energy Ventures Llc
Republic Midstream Llc
Resaca Resources Llc
Reservoir Group
Reservoir Imaging Inc.
Reset Energy
Resolute Energy Corp
Resource Energy Can-am LLC
Resource Energy Partners LLC
Resource Rock Exploration
Return Energy Inc.
Revolution Resources
Rex Energy Corp
Rhino Resource Partners Lp
Rice Energy
Richfield Oil & Gas Company
Ridgeback Resources
Riley Exploration Group, LLC
Riley Exploration Permian Inc.
Rimrock Midstream Llc
RimRock Oil & Gas
Rimrock Resource Partners LLC
Ring Energy Inc.
Rio Bravo Commercial Enterprises Inc.
Rio Bravo Energy Partners Llc
Rio Bravo Oil, Inc.
Rio Grande LLC
Rio Oil and Gas Llc
Rio Vista Energy Partners, L.P.
Rioco Partners Ltd.
Rise Energy Partners
Rising Phoenix Royalties
Rising Star Resources Ltd.
Riverstone Holdings Llc
Riviera Resources
RK Petroleum Corp
Rki Exploration & Production, Llc
Rmp Energy Inc.
Roadrunner Oil & Gas, Inc.
Roan Resources
Robbins & Myers Inc.
Robert L. Bayless, Producer Llc
Roboco Energy
Robotic Drilling Systems AS
Roc Oil
Rock Energy Inc.
Rock Oil Holdings Llc
Rockbridge Resources Inc
Rockcliff Energy II LLC
Rockdale Resources Corporation
Rockefeller Hughes Corporation
Rockford Energy Partners Ii Llc
Rockies Standard Oil Company Llc
Rockpile Energy Services
Rockport Permian LLC
RockRose Energy Plc
Rockwater Energy Solutions Inc.
Rocky Creek Resources, LLC
Rod's Production Services
Rooster Energy Ltd.
Ropat Petroleum
Rose Petroleum
Rose Rock Midstream, L.P.
Rosehill Resources Inc.
Rosenberg As
Rosetta Resources, Inc.
Rosneft Oil Company
Ross Offshore
Rover Operating Company, Llc
Royal Dutch Shell
Royal Energy Resources Inc.
Royal Resources
Royale Energy Inc.
Royalty Exploration
RSP Permian Inc.
Rubicon Oilfield International
Ruger Energy Inc.
Rushmore Reviews
RWE DEA
S&r Compression Llc
S&S Star Water Solutions
Sabalo Energy, LLC
Sabinal Energy LLC
Sabine Oil & Gas Corp
Sable Environmental Llc
Sable Permian Resources, LLC
Saddle Butte Llc
Salt Brush Energy
Salt Creek Midstream LLC
Salt Creek Oil LLC
Saltel Industries
Saltwater Disposal of North Dakota Llc
Saltwater Disposal Systems, LLC
Samarium Energy & Resources Corp
Samchully Co.
Samson Exploration LLC
Samson Investment Company
Samson Oil & Gas Limited
Samson Resources Company
Samson Resources II LLC
Samsung Corporation
San Leon Energy
Sanchez Energy Corp
Sanchez Midstream Partners LP
Sanchez Production Partners Lp
Sanchez Technologies
Sandbox Enterprises LLC
Sandridge Energy, Inc.
SandRidge Mississippian Trust
Sandstone Energy Llc
Sandtinel
Sanjel Corporation
Santa Elena Minerals, LP
Santa Fe Energy Trust
Santa Fe Midstream LLC
Santa Fe Petroleum, Inc.
Santa Maria Petroleum Inc.
Santonia Energy Inc.
Santos Limited
Santrol
Saponis Investments Sp. Z O.O.
Saratoga Resources Inc.
Sasol Limited
Saturn Oil and Gas Inc.
Savanna Energy Services Corp.
Savant Alaska Llc
Sbg Energy Services Llc
Scana Corporation
Schlumberger Limited
Schoeller-Bleckmann
Scintilla Llc
Scotia Waterous
Scotiabank
Scottish Power Generation Ltd.
Scout Energy Partners
Sea Dragon Energy Inc.
Sea Oil Ltd
Seabourn Oil Company
Seacor Holdings Inc.
Seadrill Limited
Seadrill Partners LLC
Select Energy Services
Semgroup Corporation
Sempra Energy
Seneca Resources
Senex Energy Ltd.
Sentinel Peak Resources LLC
Sequa Petroleum Nv
Sequel Energy Llc
Sequitur Energy Resources, LLC
Serica Energy Plc
Ses Holdings Ltd
Seven Generations Energy Ltd
Seventy Seven Energy Inc.
Sfax Offshore Exploration
Sff Production, Llc
Shalewater Solutions, Inc.
Shamaran Petroleum
Sharon Energy
Sharon Resources, Inc.
Shawcor Ltd.
Shelby Resources Llc
Shelby Shale LLC
Shelf Drilling Holdings Ltd.
Shell Midstream Partners Lp
Shell Pipeline Company Lp
Shenhua Energy Company
Sheridan Holding Company II LLC
Sheridan Production Partners
Shona Energy Company Inc.
Shoreline Energy Corp.
Shoreline Natural Resources Limited
Shun Cheong Holdings
Siemens Ag
Silver Creek Midstream, LLC
Silver Creek Oil & Gas, LLC
Silver Hill Energy Partners LLC
Silver Run Acquisition Corp
Silver Run Acquisition Corp II
Silverback Exploration LLC
Silverbow Resources
Silverpeak
Silverwillow Energy Corporation
Simba Energy
Sinclair Oil & Gas Company
Sinochem Group
Sinoenergy Investment Corp.
Sinohan Oil and Gas Investment B.V.
Sinopec
Sintana Energy Inc
Sistema
SitePro
Sixth Street Partners LLC
SK E&P America Inc
SK E&S Co. Ltd
Sk Group Ltd.
Slawson Exploration Inc.
Slingshot Supply Inc.
SM Energy Company
Smart Sand Inc
Smith Production Inc.
Sn-Gazdobycha Llc
Snam S.p.A.
Snc Lavalin Group Inc
Snpc
Soane Energy Llc
Socar
Sojitz Energy Venture Inc
Solaris Midstream
Solimar Energy Limited
Sonangol E.P.
Sonatrach
Sonde Resources Corp.
Songa Offshore
Sonic Oilfield Services
Sorgenia E&p
Source Energy Partners Lp
Source Energy Services
Source Rock Royalties Ltd
South Texas Oil Company
South Uintah Gas Properties
Southcross Energy Partners, L.P.
Southeastern Oil & Gas
Southern Bay Energy
Southern Company
Southern Energy Group Inc.
Southern Oil and Gas Lp
Southern Pacific Resources
Southern Propane Inc.
Southern Union Company
Southland Royalty Co.
Southwest Treating Products Llc
Southwestern Energy Co.
Spartan Delta Corp.
Spartan Energy Corp.
Spartan Energy Services
Spartan Oil Corp.
Specialty Waste Operating Partners Lp
Spectra Energy Corp.
Spectra Energy Partners, Lp
Spectrum Corporation
Spectrum Tracer Services
Spike Exploration
Spirit Global Energy Solutions
Spn Resources
Sprague Resources Lp
Spring Energy
Springbok Energy
Sprott Toscana
Spur Energy Partners LLC
Spur Resources Ltd
Spyglass Energy Group Llc
Spyglass Resources Corp.
SRC Energy Inc
Sse Plc
St. Mary Land & Exploration Co.
Staghorn Petroleum Llc
Stakeholder Midstream LLC
Stallion Energy Llc
Start Scientific Inc
Starwood Energy Group Global LLC
Steel Reef Infrastructure Corp.
Steelhead Petroleum Ltd.
Stellar Energy and Investment Corporation
Step Energy Services Ltd
Steppe Resources
Sterling Energy
Sterling Resources Ltd.
Stetson Oil & Gas Ltd.
Steward Energy Llc
Stingray Energy Services, LLC
Stittco Energy Ltd
STL Resources LLC
Stone Energy Corp.
Stone Mountain Resources
Stone Pump & Trench
Stonegate Production Co.
Stonehaven Exploration Ltd.
Stonehorse Energy Limited
Stonepeak Infrastructure Partners
StonePoint Energy Inc.
Storm Cat Energy Corp
Storm Resources Ltd.
Strata Oil & Gas Inc.
Strata-X Ltd
Strategic American Oil Corporation
Strategic Oil & Gas Ltd.
Stratex Oil and Gas
Strath Resources Ltd
Stream Oil & Gas Ltd
Strike Energy Ltd
Striker Exploration Corp
Striker Petroleum Operations Llc
Stroud Petroleum Inc
Stw Resources Holding Corp.
Stx Canada Marine Inc
Suds Properties Llc
Sumitomo Corp
Summit Discovery Resources II LLC
Summit Esp
Summit Midstream Partners, Lp
Summit West Oil Llc
Sun Resources Nl
Sun River Energy, Inc.
Sun Tubular Services
Suncor Energy Inc.
Suncor Energy-Natural Gas-America Inc
Sundance Energy Corp.
Sundance Energy Inc
Sunoco Logistics Partners L.P.
Sunoco Lp
Sunshine Oilsands Ltd.
Sunstone Oil and Gas Llc
Sunstone Projects Ltd
Super Nova Minerals
Superior Disposal Services Llc
Superior Energy Services, Inc.
Superior Pipeline Co. LLC
Superior Plus
Sure Energy Inc
Surge Energy Inc
Surge Operating, LLC
Suroco Energy Inc.
Susquehanna Services
Susser Holdings Corp.
Swallowtail Royalties
Swepi Lp
Swift Energy Co.
Swift Exploration
Synenco Energy Inc.
Synergy Offshore Llc
T-Rex Oil Inc.
TAG Oil Ltd.
Tailwater Capital
Talen's Marine & Fuel Llc
Talisman Energy Inc.
Tall City Exploration III LLC
Tall City Exploration Llc
Tall Oak Midstream II, LLC
Tall Oak Midstream III LLC
Tall Oak Midstream Llc
Tallgrass Development LP
Tallgrass Energy, LP
Talon Oil & Gas Llc
Talos Energy Inc
Tamar Petroleum
Tamarack Valley Energy Ltd.
Tamaska Oil and Gas Ltd
Tamboran Resources Pty Ltd.
Tammany Oil & Gas
Tana Exploration Company, LLC
Tanager Energy Inc
Tandem Energy Holdings, Inc.
Tangle Creek Energy Ltd.
Tanos Energy
Tanos Exploration II, LLC
Tap Oil
Tapstone Energy Llc
Taqa
Targa Resources Corp.
Targa Resources Partners Lp
Target Energy Limited
Taylor Energy Company
Taylor Frac, LLC
TC Energy Corp.
TC PipeLines, LP
Teak Midstream
Team Energy, Llc
Technip
Tecpetrol Operating
Teekay Offshore Partners Lp
Teine Energy
Tejones Operating Corporation
Tellurian Inc.
Tellus Resources Ltd.
Tema Oil & Gas Company
Templar Energy LLC
Tenaris Sa
Tenaska Resources Llc
Tendrara Lakbir Petroleum
Tengasco Inc.
TEP Rocky Mountain Llc
Terra Energy Corp.
Terra Energy Partners LLC
Terra Nova Energy Ltd.
Terrace Energy Corp.
Terracor Group
Terravest Capital Inc.
Terrex Energy
Tesco Corporation
Tesoro Corporation
Tesoro Logistics Lp
Tessara Petroleum Resources LLC
Testco Well Services
Tethys Petroleum Ltd.
Teton Energy Corp
Tetra Technologies Inc.
Texada Ventures
Texas American Resources Co.
Texas Gulf Energy Inc.
Texas Oil and Minerals, Inc.
Texas South Energy
Texcal
Texcom, Inc.
Texegy LLC
Texon Petroleum Limited
Texstar Midstream Services
The Alberta Investment Management Corp.( AIMCo)
The Carlyle Group Lp
The Exploration Company
The Friendsville Group
The Houston Exploration Co.
The Laclede Group, Inc.
The Lubrizol Corporation
The Oxford Oil Company Llc
The Tierra Companies
The Vitol Group
The Weir Group
Third Coast Mistream
Thomas Russell Co.
Three Rivers Operating Co II LLC
Three Rivers Operating Co III LLC
Three Rivers Operating Company LLC
Thunder River Energy Inc.
Tiburon Research Holdings Llc
Tidewater Inc.
Tidewater Midstream and Infrastructure
Tier 1 Energy Solutions
Timco Services Inc.
Tippin D Oilfield Services Ltd.
Tipton Oil and Gas
Titan Chalk Inc.
Titan Energy LLC
Titan Frac Services LLC
Titan Operating, L.L.C
Titanium Exploration Partners LLC
TIW Corporation
Tlp Energy Llc
Tmk Group
Tnk-Bp
Tokai Carbon Co. Ltd.
Tokyo Gas Co., Ltd.
Topaz Energy Corp.
TORC Oil & Gas Ltd.
Torchlight Energy Resources, Inc.
Toreador Resources Corp.
Toro Oil and Gas Ltd
Toro Projects Inc.
Torxen Resources
Total Energy Services Inc.
Total SA
Touchstone Exploration Inc.
Tourmaline Oil Corp.
Tournament Exploration Ltd.
Tower Resources Plc
TPG Capital
TPG Pace Energy Holding Corp
Tracker Resource Development III Llc
Trafigura Ag
Trail Ridge Energy Partners II LLC
Trans Carrier Ltd.
Trans Carrier Rentals Ltd.
Trans Energy Inc.
Transatlantic Petroleum Ltd.
Transerv Energy Limited
Transglobe Energy Corporation
Transmontaigne Partners L.P.
Transocean Ltd.
Trapoil
Travis Peak Resources LLC
TRC Companies Inc.
Treadstone Energy Partners LLC
Treaty Energy Corporation
Trees Capital Partners Ltd.
Triad Energy and Affiliates
Triana Energy Holdings Llc
Triangle Petroleum Corp
Trican Well Service Ltd.
Trident Corp
Trident Energy
Trident Exploration Corp.
Tridimension Energy
Trigeant Ltd.
Trihawk Energy Ltd
Trilantic Capital Partners
Trilogy Energy Corp.
Trimont Energy Llc
Trinidad Drilling Ltd.
Trinity Co2 Investments
Trinity Exploration and Production Limited
Trioil Resources Ltd.
Tritex Energy Llc
Triumph Energy Partners LLC
Troika Resources Private Equity Fund
Troy Energy
Truevine Operating, Llc
Trz Energy Llc
TSSP
Tudor Pickering Holt & Co
Tug Hill Operating
Tullow Oil Plc
Tumbleweed Midstream LLC
Tundra Energy Marketing Limited
Tundra Oil & Gas Ltd.
Turnbridge Capital Llc
Tuscany Energy Ltd.
Twin Butte Energy Ltd.
Twin Eagle
Two Eagles Resources
Txco Resources Inc.
U.S. Development Group
ubitricity
UGI Corporation
Ugi Energy Services Inc.
Uk Oil & Gas Investments
Ulterra Drilling Technologies LP
Ultra Petroleum Corp.
Unconventional Gas Resources
Underground Energy
Undisclosed
Unimin Corporation
Unioil
Union Group
Union Jack Oil Plc
Union Pacific Resources Group Inc.
Unit Corp.
United Energy Trading LLC
United Heritage Corporation
United Petroleum Company
Unocal
UOP Russell LLC
Upstream Exploration LLC
Ursa Piceance Holdings LLC
Us Enercorp
US Energy Corp.
US Energy Development Corp
US Silica
USA Compression Partners Lp
USD Partners LP
USG Energy Producer Holdings
USG Properties Haynesville LLC
Ute Energy Upstream Holdings Llc
Utica Energy Llc
Utica Resource Operating LLC
Vaalco Energy Inc.
Vale Sa
Valero Energy Partners Lp
Valerus Field Solutions
Valiant Petroleum Plc
Validus Energy
Valorem Energy LLC
Value Creation Inc.
Vamp Oilfield Services
Vanguard Energy Corporation
Vanguard Natural Resources, Llc
Vanoil Energy
Vantage Energy Acquisition Corp
Vantage Energy LLC
Var Energi AS
Vard Holding Ltd
Vast Petroleum of Kansas Llc
Vecta Oil & Gas Ltd
Velocity Midstream Partners Llc
Velvet Energy Ltd
Venado Oil & Gas Llc
Venari Resources Llc
Vencer Energy
Venture Mud Lp
Venturion Oil Limited
Verano Energy Ltd
Verdad Resources LLC
Verdun Oil Company LLC
Veresen Inc.
Verisk Analytics Inc.
Veritas Energy Llc
Veritas Energy Partners Holdings LLC
Vermilion Energy Inc.
Vero Energy Inc.
Vertex Resource Group
Verus Petroleum
Vess Oil Corporation
Vessels Energy, Inc.
Vetra Energia S.L.
Vhgi Holdings Inc.
Victory Energy Corporation
Videocon Mauritius Energy Limited
Viking Energy Group
Viking Exploration and Production Tunisia Ltd.
Viking Investments Group Inc
Viking Seatech
Villanova 4 Oil Corp
Villanova Oil Corp.
Vine Oil & Gas
Viper Energy Partners Lp
Virginia Hills Oil Corp
Virtex Operating Co Inc
Virtus Oil and Gas Corporation
Vision Resources, Inc.
Visionary Resources LLC
Vista Disposal Solutions LLC
Vital Energy Inc
Vitesse Energy Llc
Vitesse Oil Llc
Vitruvian Exploration II LLC
Vitruvian Exploration IV, LLC
Volantis Exploration Ltd.
Vortex Ocean One Llc
Voyager Gas Corporation
Voyager Oil & Gas, Inc.
Vtti Energy Partners Lp
W Energy Partners
W&T Offshore Inc.
Waldron Energy Corp
Walter Energy
Wapiti Energy Llc
Ward Energy Partners
Warren Resources Inc.
Warrior Energy Nv
Warwick Energy Group
Waseca Energy Inc.
Waste Connections Inc.
Waste Management
Waste Recovery Solutions Inc.
Watco Companies LLC
WaterBridge Resources LLC
Waterous Energy Fund
WaterWorks Corral Creek, LLC
Weatherford International Ltd.
Weir Oil & Gas
Wellsite Leasing
Wellstar Energy Corp.
Wentworth Energy
West Ok Disposal Llc
West Ok Trucking Inc.
West Street Energy Partners
West Texas Resources, Inc.
Westbrick Energy Ltd.
Westbridge Energy
Westech Energy New Zealand
Western Energy Services Corp.
Western Gas Partners Lp
Western Metals
Western Midstream Partners, LP
Westfire Energy Ltd.
Westoil Llc
Westside Energy Group
Westwater Energy
Wexford Capital Lp
Wexpro Company
Weyburn Energy Ltd.
Wharton Resources Corp.
Wheatland Oil Inc.
Whistler Energy II, LLC
Whistler Oil and Gas Pty. Ltd.
White Deer Energy
White Knight Production LLC
White Rose Energy Ventures Llp
White Star Petroleum LLC
White Top Oilfield Construction Llc
Whitecap Resources Inc.
WhiteHorse Energy LLC
WhiteWater Midstream
Whiting Petroleum Corp.
Whittier Energy
Wildcat Minerals Llc
WildFire Energy
WildHorse Resource Development
Will Energy Corp.
Willbros Group, Inc
Williams Companies, Inc.
Williams Partners Lp
Wilton Petroleum Ltd.
Winchester Energy Co., Ltd.
Winco Development Llc
Wind Hydrogen Ltd
Wing Resources LLC
Winright Resources LLC
Winstar Resources Ltd.
Wintershall
Wishbone Energy Partners
Wit Water Transfer Llc
Wle, Inc.
Wm Ks Energy Resourc
Wolf Midstream Inc.
Wolf Point Exploration, Llc
Wolfberry Partners Resources LLC
Wood Group
Wood Mackenzie
Woodbine Acquisition LLC
Woodcote Oil Corp.
Woodland Midstream II LLC
Woodland Midstream LLC
Woodside Petroleum Ltd.
Woodstone Resources Llc
Woolpert Inc.
Working Interest Holdings Llc
World Oil Tools LLC
Worley
Wps Resources
WPX Energy, Inc.
Wrangler West Energy Inc.
Wyatt Oil + Gas Inc.
Wyatt Water Solutions LLC
X-Change Corp
Xcxp Operating Lp
Xpr Resources LLC
XR Energy Inc.
Xr of Texas Llc
XRI Holdings, LLC
XTO Energy Inc.
Xtreme Drilling and Coil Services Corp.
Xtreme Oil & Gas
Yanchang Petroleum International Ltd.
Yangarra Resources Ltd.
Yates Petroleum Company
Yoho Resources Inc.
York Capital Management
YPF
Yuma Energy, Inc.
Zargon Oil & Gas Ltd
Zarvona Energy LLC
Zaza Energy Corp
Zenergy International, Inc.
Zenith Energy
Zhaikmunai Lp
Zodiac Exploration Corp.
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