COMPANY

212 Resources

Air Resources Specialists, Inc.

Anadarko Petroleum Corporation

Applied Control Equipment

Bentek Energy, LLC

Bitte Creek Pipelines, LLC

BJ Services

Blue Rock Energy Capital

Bradley B. Bean, PE

Bureau of Land Management

Buys and Associates, Inc.

Cameron

Camp Dresser & McKee, Inc. (CDM)

Cartasite, Inc.

CH2M HILL, Inc.

Clear Creek Energy Services, LLC

Colorado Geological Survey

Colorado Oil & Gas Conservation Commission

CompassTools, Inc

Complete Production  Services, Inc.

Conestoga-Rover & Associates

Control Microsystems

Cordilleran Compliance Services Inc.

DCP Midstream

Don's Directory

Drilling Info, Inc.

Eaton Metal Products Company, LLC

ECOS Environmental & Disaster Restoration, Inc.

El Paso Western Pipelines

Elkhorn Holdings

eLynx Technologies, LLC

EMIT Water Discharge Technology LLC

EnCana Oil & Gas (USA) Inc.

Energy Management Program - The University of Oklahoma

Energy Net, Inc.

Enertia Software

Engineered Aeroacoustics, Inc.

Enterprise Products

ERO Resources Corporation

FCI Consulting & Inspection Services

Fiberspar LinePipe LLC

ForeRunner Corporation

Gas Compressor Consultants

GeoMap Company

Global Energy Management Program, UCD

Global View Software

Halliburton

Hart Energy Publishing/ Oil and Gas Investor

Hawkeye Geosensing

HB Rentals

Hettinger Mayo LLC

Hoerbiger Compression Technology

HPDI, LLC

IACX Energy, LLC

IHS

IMA

Insight Automation, Inc.

Interactive Data - eSignal Division

InterTech Environment & Engineering, LLC - CBM Associates, Inc.

J. W. Williams

JBR Environmental Consultants

J-W Operating Company

KatchKan USA

Key Energy Services

Kimray, Inc.

Kleinfelder

L-Con Engineers & Constructors

Lone Star Geophysical Survey (LSGS)

Mears Group, Inc.

Mercator Energy

Mesa State College - Landman/Energy Management Program

Natural Resource Group

Noble Energy Inc.

Noise Solutions, Inc.

OGRE Systems

Omnicon Technical Sales

ONEOK Partners

Optigas

PCI Sales, Inc.

PennWell MAPSearch

Petroleum Field Services

PTTC - Rocky Mountian Region

Questar Exploration & Production

Questar Pipeline Company

Quorum Business Solutions

Rain for Rent

Red Cedar Partners

Redi Services

Research Partnership to Secure Energy for America

Rocky Mountain Oil Journal

Russell Surveying

Schlumberger Water Services

SiteWise, LLC

Solar Turbines Incorporated

SolArc, Inc.

Spatial Energy

Stealth Acoustical & Emissions, Inc.

StormPro Max

SWCA Environmental Consultants

TechCorr

Technology Laboratory, Inc.

Ticora Geosciences/Weatherford Laboratories

Vista Geo Science

Wagner Power Systems

Walsh Environmental Scientists & Engineers, LLC

Watersaver Company, Inc.

Wavefront

Wellstream International

Western State College

Willbros Midstream Services

William H. Smith and Associates, P.C.

Williams

Wood MacKenzie

ZE Power Group