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