SES CLIENT COMPANIES

Abraxas Petroleum Corporation

AccuStrat LLC

Acme Geologic Consulting

Action Energy, LLC

Aethon Energy, LLC

Ageos LLC

AKG Energy, LP

ALS Oil & Gas

Alta Mesa Holdings, LP

Alta Resources, LLC

Anadarko Petroleum Corporation

Anschutz Exploration Corporation

Antero Resources Corporation

AOG Services, LLC

Apache Corporation

Apex Energy LLC

Arch Exploration

Arkoma Companies

Armor Energy, LLC

Arris Petroleum Corporation

Arsenal Resources Corporation

Arsi Energy

Ascent Energy, LLC

Ascent Resources Management Services, LLC

Athlon Energy Inc.

Atlas Energy Operating Company, LLC

Basin Geologic Consulting, Inc.

BGS Corporation

Bill Barrett Corporation

Bison Oil & Gas Partners, LLC

Black Hills Exploration & Production, Inc.

Black Mesa Energy LLC

Blue Dragon Geoscience, LLC

Blue Water Consulting Services

Bright Horizon Resources, LLC

BTA Oil Producers, LLC

Burnett Oil Company

Carrizo Oil & Gas, Inc.

Casillas Petroleum Corporation

Catamount Energy Partners, LLC

Chevron Canada Resources

Chief Oil & Gas LLC

Chisholm Energy Management, LLC

Chisholm Oil & Gas Operating

Cimarex Energy Co.

Cinnabar Operating, LLC

Citizen Energy

Clear Directional Drilling Solutions Ltd.

CMX, Inc.

ColbyCo Energy Partners

Colgate Energy Partners

Columbine Logging, Inc.

Compass Production Partners, LP

Computerized Mudlogging Services, LLC

Comstock Resources, Inc.

Continental Resources, Inc.

Cordillera Energy Partners

Courson Oil & Gas, Inc.

Covey Park Energy LLC

Crawley Petroleum Corporation

Crescent Point Energy US Corporation

Dallas Production Company

Decollement Consulting Inc.

Denbury Resources Inc.

Derby Exploration, LLC

Devon Energy Corporation

DHI Services, Inc.

Diversified Well Logging, Inc.

Earth Science Agency, LLC

Eclipse Resources Corporation

Edge Systems

EdgeMarc Energy Holdings, LLC

EE3 LLC

Eisenbarth Consulting

El Paso Production Company

Ellora Energy, Inc.

Empirica LLC

Encana Oil & Gas USA Inc.

Energy Corporation of America

EnSight IV Energy Partners, LLC

EOG Resources, Inc.

Epoch Consulting LLC

Ergon Exploration, Inc.

EXCO Resources, Inc.

Fairway Geology, Inc.

Fidelity Exploration & Production Co

Field Geo Services, Inc.

Finley Resources Inc.

FourPoint Energy, LLC

Fox Resource Consultants Ltd.

Freymuller Consulting

Fuse Energy, LLC

Gastar Exploration, Ltd.

Gaz de France

Geo-Link Inc.

GeoGap, LLC

GeoScience Limited

Geosearch Logging, Inc.

GeoSouthern Energy Corporation

Geo-Steering Solutions Inc.

Geotech Logging Services, LLC

Great Western Oil & Gas Company

Greylock Energy LLC

Gulfport Energy Corporation

Gunnison Energy LLC

Hadaway Consulting & Engineering, LLC

Halliburton

Hess Corporation

Horizon Well Logging, LLC

Hoss Geosciences

Huikan Science and Technology

Husky Oil Operations Limited

Impac Exploration Services, Inc.

Independence Resources Management, LLC

Inflection Energy LLC

Intermountain Wellsite Geologists, Inc.

Intrepid Potash-Moab, LLC

Jetta Operating Company, Inc.

Jonah Energy LLC

Juneau Energy, LLC

J-W Energy Company

Confidential 'J' Company #1

K.P. Kauffman Company, Inc.

KFUPM

KJ Energy, LLC

Koury Geosteering, LLC

Laramie Energy II, LLC

Laredo Petroleum, Inc.

Latigo Petroleum, LLC

LCS Production Company

Lewis Energy Group, L.P.

Liaohe Oilfield Logging Company

Lynx Oklahoma Operating LLC

Mack Energy Corporation

Mallard Exploration, LLC

Marlin Operating

Marquette Exploration, LLC

Matador Resources Company

Maverick Natural Resources, LLC

McElvain Energy, Inc.

Merit Energy Company

Mid Continent Well Logging Service, Inc.

Montrose Operating LLC

Mountaineer Keystone, LLC

Muddy Logger

Nance Petroleum Corporation

Native Exploration Holdings, LLC

Nemaha Oil and Gas, LLC

Neset Consulting Service Inc.

New Gulf Resources, LLC

Newfield Exploration Company

Nexen Inc.

Nickel Road Operating LLC

North Star Geoservices, LLC

Northeast Natural Energy, LLC

Northwoods Management Company, LLC

Olifant Energy, LLC

Paladin Geological Services, LLC

Panther Energy Company II, LLC

Paramount Resources Ltd.

Patriot Mudlogging LLC

PDC Energy, Inc.

PennEnergy Resources, LLC

Pennsylvania General Energy Company LLC

Peregrine Petroleum Partners, Ltd.

PerformWell GeoSteering

Petro Log International, Inc.

PetroEdge Energy LLC

Petro-Hunt, L.L.C.

PetroLegacy Energy II, LLC

PetroShale Inc.

Phillips Resources Inc.

Phoenix Technology Services USA, Inc.

Piedra Resources, LLC

Pine Wave Energy Partners, LLC

Pinson Well Logging, Inc.

Pioneer Natural Resources Company

Plains Exploration & Production Co

Plantation Petroleum Company LLC

PML Exploration Services LLC

Precise Well Analysis, LLC

Primary Natural Resources IV, LLC

QEP Resources, Inc.

Quanah Panhandle, LLC

Quintana Energy Services LP

Range Resources Corporation

Raptor Consulting, Inc.

Rebellion Energy LLC

Red Mountain Energy, LLC

Repsol Oil & Gas USA, LLC

Reservoir Group

Resource Development, Inc.

RG Exploration LLC

Rimrock Resource Operating, LLC

Rock Oil Company

Rock Steady Geo Consulting

Rock Solid Steering Inc.

Rosewood Resources, Inc.

RPS Energy Ltd.

Rubicon Geological Consulting, LLC

S&A Resources, LLC

Samson Energy Company, LLC

Samson Resources Co

San Gabriel Resources LLC

Sand Point Enterprizes, LLC

Scout Energy Partners

Seidel Technologies, LLC

Seneca Resources Corporation

Sequel Energy, LLC

Shell Exploration & Production Company

Silverback Operating, LLC

SLG Resources, LLC

SLS PetroServices, LLC

SM Energy Company

South Texas Gas LLC

Staghorn Energy LLC

Stratagraph NE, Inc.

Stratagraph, Inc.

S.T.L. Resources, LLC

Summit Discovery Resources III LLC

Summit Energy Management LLC

Summit Mudlogging Services

Sunburst Consulting, Inc.

Sundance Energy, Inc.

T.M. McCoy & Company, Inc.

Tamworth Resources LLC

Targeted GeoVision, LLC

TD Geologic LLC

Teal Natural Resources, LLC

Technical Drilling Services Inc.

Tecolote Energy Operating LLC

Tekton Energy, LLC

TEP Barnett USA, LLC

Terra Guidance LLC

Terrace Energy LLC

Texas American Resources Company

The GHK Company, LLC

The Mudlogging Company USA, L.P.

Toledo Mudlogging Services, Inc.

Trail Ridge Energy Partners II, LLC

Triana Energy LLC

True Oil LLC

Twin Butte Energy Ltd.

Ultra Resources, Inc.

Unit Petroleum Company

Upstream Geo, LLC

Utopia Bridge Petroleum Geoscience

Vanguard Natural Resources, Inc.

Velvet Energy Ltd.

Vesta Energy Corporation

Vine Oil & Gas LP

Vitruvian Exploration IV, LLC

Warren & Christian, Inc.

Washington and Lee University

Wayfinder Resources, LLC

Weatherford U.S., L.P.

Wellbore Placement Services, LLC

Wheelhouse Geoscience LLC

White Drake Industries, LLC

Whiting Oil & Gas Corporation

Windridge Oil & Gas LP

WPX Energy, Inc.

Yates Petroleum Corporation

1970567 Alberta Ltd.

SES rocks! See chronology here.