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Oiltrash.com's Company Listings Oil Field Services 3D Exploration Partners Sandy UT 3D Network Company Houston TX 3TEC Energy Corporation Dallas TX 4-Corners Archaeological Services Moab UT A Melia Fuel Company marshfield MA A Pleasant Construction Green River WY A&A Tank Trucks CO., Inc. Washington OK A&A Tank Trucks CO., Inc. Wilburton OK A&A Tank Trucks CO., Inc. Chickasha OK A&A Tank Trucks CO., Inc. Norman OK A&A Tank Trucks CO., Inc. Yukon OK A&A Tank Trucks CO., Inc. Watanga OK A&A Well Service Elsmore KS A&B Consultants Louisville CO A&D Oilfield Dozer's, Inc. Rawlins WY A&E Flow Testing, LLC Rock Springs WY A&F Electric, Inc. Williston ND A&K Rentals, Inc. Williston ND A&L Underground Olathe KS A&T Roustabouts Ringwood OK A-1 Machine, Inc. Farmington NM A. G. Edwards & Sons, Inc. Saint Louis MO A.C.E. Exploration Schulenberg TX A2D II Lakewood CO AB Chance CO. Centralia MO ABCO Industrial Sales, Inc. Boulder CO Abel Gabel's Welding Bartlesville OK Abilene Well Elevation Service Abilene TX Abraxas Petroleum Corp. San Antonio TX AC Egbert Water Service, Inc. Rock Springs WY Accurate Consultants, Inc. Broomfield CO Accurate Consultants, Inc. Colorado Springs CO Ace Inspection Service, Inc. Evanston WY Ace Transportation, Inc. Lafayette LA Ace Transportation, Inc. Oklahoma City OK Ace Welding, Inc. Chase KS Ace West Trucking Inc. Rangely CO Acidizing & Cementing Services Crescent OK Acme Truck Line Harvey LA Acme Truck Line Pampa TX Act Now Radon Professionals, Inc. Highland Ranch CO Action Petroleum Services Corp. Ardmore OK Action Weed & Pest Control Ellinwood KS Adams & Franks Contractors Lefors TX Adams & Son Trucking, Inc. Sidney NE ADI Wireline, Inc. Fort Morgan CO Adler Hot Oil Service Inc. Vernal UT Adobe Contractors, Inc. Aztec NM ADR Associates, Inc. Colorado Springs CO ADS Operating, Inc. Roosevelt UT Adsco Line Products, Inc. Houston TX Advance Tank & Construction Co Wellington CO Advanced Filtration Technologies Williston ND Advanced Hydraulic & Machine Inc. Casper WY Advanced Micromagnetics, Inc. Austin TX Advanced Resources International, Inc. Arlington VA Advantage Elevations Pratt KS Advantage Resources Inc Denver CO Aexco Petroleum Inc Denver CO AFE Oil and Gas L.L.C. Dallas TX Aggreko, Inc. Commerce City CO Aggreko, Inc. Las Vegas NV Aggreko, Inc. Kansas City KS Aggreko, Inc. Edmond OK Aggreko, Inc. Fenton MO AGS, LP Denver CO AI Abercombie, Inc. Great Bend KS Air Drilling Services Englewood CO Air Drilling Services Casper WY Air Drilling Services Houston TX Air Services International Scottsdale AZ AJ Joyner Machine CO. Oklahoma City OK Al's Rig Service Casper WY Aladdin Petroleum Corp. Wichita KS Alarado, Inc. Lakewood CO Albert Hogoboom Oilfield Trucking, Inc. El Dorado KS Albrecht Associates, Inc. Denver CO Alcorn Exploration, Inc. Houston TX Alenco Oil & Gas (N.D.) Inc. Williston ND Alexander Oil Field Service, Inc. Perryton TX Alfa Resources, Inc. Denver CO All Season Air & Electric Noble OK Allen Construction CO. Elk City OK Allen Construction CO. Shamrock TX Allen Enterprises Gillette WY Allen Inspection Service Inc. Mills WY Allen Wireline Service, Inc. Abilene TX Allen Wireline Service, Inc. Graham TX Allen's Tri-State Mechanical CO. Amarillo TX Allen, Gibbs & Houk, Inc. Wichita KS Allied Cementing CO., Inc. Russell KS Allied Cementing CO., Inc. Great Bend KS Allied Cementing CO., Inc. Oakley KS Allied Cementing CO., Inc. Hays KS Allied Steel Construction CO. Oklahoma City OK Allison Drilling Company, Inc. Denver CO Alltex Exploration, Inc. Houston TX Alme Construction, Inc. Cut Bank MT Alpha Bioscience Company Farmington NM Alpha Development Corp. Casper WY Alpine Gas Company Englewood CO Alpine Oil CO., Inc. Denver CO Alpine Oil Services Inc. Williston ND Alpine Oil Services Inc. Littleton CO Altair Corp. Bismarck ND Altman Electric Abilene TX Altschuld, Ken Englewood CO Amderson Oil Corp. Houston TX Amerada Hess Corp Houston TX American Casedhole Specialists, Inc. Weatherford OK American Casedhole Specialists, Inc. Oklahoma City OK American Casedhole Specialists, Inc. Corpus Christi TX American Casing & Equipment Williston ND American Energies Corp. Wichita KS American Energy Services, Inc. Cleo Springs OK American Gas Compression Services, Inc. Brighton CO American Mobile Welding Fort Collins CO American Surveys Manvel TX American Tank & Construction CO. Tulsa OK American Tank Cleaning CO. Tulsa OK American Tubular Inspection, Inc. Mills WY American Western Group, Inc. Denver CO AmeriTech Engineering Corp. (ATEC) Brookings SD Ameritex Minerals San Antonio TX Ammonite Resources, CO. New Canaan CT AmSouth Bank Mobile AL AMWAY SL Freetown 00 Anadarko Consultants, LTD Yukon OK Anadarko Petroleum Corp. Houston TX Anadrill Schlumberger Sugar Land TX Anadrill Schlumberger Oklahoma City OK Anadrill Schlumberger Englewood CO Anadrill Schlumberger Houston TX Anatesco-Southern Rockies Inc. Parker CO Anchor Services, Inc. Gillette WY Anderso Minerals, LTD Arvada CO Anderson Energy Corporation Denver CO Anderson Management CO. Denver CO Anderson Perforating, Inc., Albany TX Anderson Roustabout Service Fritch TX Anderson's Machine Shop Sapulpa OK Anderson, Donald W. Westminster CO Anderson, Harold L. Larkspur CO Andex Resources, L.L.C. Houston TX Andrews Welding Service Chaney KS Andy's Drill Collar Inspection, Inc. Arcadia OK Andy's Mud Co. Hays KS Angel Fire Enterprises Cheyenne WY Anschultz Exploration Corp. Denver CO Anschutz Exploration Corporation Denver CO Anson Production Service Seminole OK Antara Resources, Inc. Denver CO Anton Excavating Anton CO Apex Energy ebute metta 00 Apex Machine Shop Williston ND Apex Surveying & Mapping Amarillo TX Apollo Oil Tool, Inc. Simino OK Apollo Perforators, Inc. Odessa TX Applied Earthworks, Inc. Fresno CA Applied Earthworks, Inc. Hemet CA Applied Earthworks, Inc. Lompoc CA Applied Research Concepts Lakewood CO ARB, Inc. Conroe TX ARC Pressure Data, Inc. Dallas TX ARC Pressure Data, Inc. Odessa TX Arc Pressure Data, Inc. Sonora TX Archaeological Energy Consulting Casper WY Arctic Catering, Inc. Parker CO Ardent Resources, Inc. Bethel Park NC Area Services, Inc. Gillette WY Areto, Inc. Corpus Christi TX Arkhoma Transports, Inc. Perryton TX Arklahoma Pipeline, Inc. Fort Smith AR Arkoma Machine & Fishing Tools Fort Smith AR Arma Energy Corp. Englewood CO Armstrong Corporation Dickinson ND Armstrong Sanitation Williston ND Armstrong, Earl F. Denver CO Armstrong, Robert G. Roswell NM Arrow Inspection, Inc. Ardmore OK Arrow Testing CO. Great Bend KS Arrow Trucking CO. Tulsa OK Arrow Wego Perforating, Inc. Ada OK Arrow Wego Perforating, Inc. Norman OK Arrow-Head Sand, Inc. Roberts ID Arrowsmith, Rex Tucson AZ ARS Control Account, LP Denver CO ASAP Enterprises Greeley CO ASC Consultants Denver CO ASCA, Ltd. Denver CO ASCO Wichita Falls TX ASCO Duncan OK Ashby, Andrew M. Evergreen CO Ashby, John E. Pine Bluffs WY Aspect Resources, LLC Denver CO Associated Specimen Specialities Brighton CO Associated Technical Support Houma LA Associated Technical Support Services Houma LA Associated Technical Support Services Houma LA Associated Wire Line Services, Inc. Healdton OK Astro Services Inc. Douglas WY AT&S Industries, Inc. Amarillo TX Atencio, John J. Denver CO Athena Energy, LLC Butte MT Atlantic Technologies, LTD Indianapolis IN Atlantic Technologies, LTD Vicksburg MS Atlantic Technologies, LTD. Huntsville AL Atlas Tank Lines CO Dallas TX Attco-Hydrocarbon Well Logging Service Farmington NM Aubrey, George Sierra Vista AZ Audubon Exploration Beaumont TX AUPHEN CORPORATION Sunny Isles Beach FL Aureuus, Tom Casper WY Aurion Technologies, LLC Dallas TX Aurora Energy, Ltd. Traverse City MI Austin Resources Corp. Houston TX Automated Mudlogging Systems Littleton CO Automation & Electronics, Inc. Casper WY Automation Specialists Aurora CO Avalon Exploration, Inc. Tulsa OK Ayco Energy CO. Austin TX Aztec Energy Corp. San Antonio TX Aztec Speciality CO. Oklahoma City OK B&B Construction Brownfield TX B&B Instruments, Inc. Liberal KS B&B Operating CO. Levelland TX B&B Rental & Janitor Supply CO. Enid OK B&B Roustabout Service, Inc. Gillette WY B&B Sheet Metal Oklahoma City OK B&C Stringup CO. Alex OK B&C Tank Trucks, Inc. Stroud OK B&D Inspection Service Delcombra LA B&E Equipment Construction, Inc. Farmington NM B&E Plugging & Equipment Oklahoma City OK B&G Crane and Oilfield Service, Inc. Altamont UT B&G Roustabout Service, Inc. Williston ND B&H Contracting Coney OK B&H Welding & Machine, Inc. Glendive MT B&L Metals LTD Denver CO B&M Tool CO. Pampa TX B&M Water Service Wamsutter WY B&R Service, Inc. Farmington NM B&W Crane Services, Inc. Casper WY B&W Oil Field Manufacturing Oklahoma City OK B-Line Trucking, Inc. Pery OK Babcock Suck Wireline Snyder TX Babcock, Gary B. Denver CO Baby Doe Resources 00 BAC Energy, L.L.C. Lafayette LA Backoff Services, Inc. Yukon OK Bacon, Richard E. Casper WY Baker Atlas Fort Worth TX Baker Atlas Laurel MS Baker Atlas Tyler TX Baker Atlas Houston TX Baker Atlas Denver CO Baker Atlas Great Bend KS Baker Atlas Anchorage AK Baker Atlas Calgary CA-SK Baker Atlas Broussard LA Baker Atlas Corpus Christi TX Baker Atlas Dallas TX Baker Atlas Houma LA Baker Atlas Jackson MS Baker Atlas Lafayette LA Baker Atlas Midland TX Baker Atlas New Orleans LA Baker Atlas Oklahoma City OK Baker Atlas Olney IL Baker Atlas Pearland TX Baker Atlas San Antonio TX Baker Atlas Alice TX Baker Atlas Buckhannon WV Baker Atlas Mills WY Baker Atlas Dickinson ND Baker Atlas Rock Springs WY Baker Atlas Houston TX Baker Atlas Yukon OK Baker Atlas Woodward OK Baker Atlas Oklahoma City OK Baker Atlas Tulsa OK Baker Atlas Wichita KS Baker Fishing Services Evanston WY Baker Fishing Services Rock Springs WY Baker Fishing Services Vernal UT Baker Hughes Inteq Anchorage AK Baker Hughes Inteq Denver CO Baker Hughes Inteq Broussard LA Baker Hughes Inteq New Orleans LA Baker Hughes Inteq Battle Mountain NV Baker Hughes Inteq Oklahoma City OK Baker Hughes Inteq Corpus Christi TX Baker Hughes Inteq Midland TX Baker Hughes INTEQ Houston TX Baker Hughes INTEQ Denver CO Baker Hughes INTEQ Casper WY Baker Hughes INTEQ Bakersfield CA Baker Hughes INTEQ Oklahoma City OK Baker Hughes INTEQ Irving TX Baker Hughes, Inc. Houston TX Baker, Gayle A., CPL/G Energy LTD Littleton CO Baker, Thomas C. Trenton NE Bakersfield Bit & Tool Bakersfield CA Bakker, Daniel Littleton CO Bale, G.L. WY Ballard Petroleum, LLC Billings MT Balleau Groundwater Inc. Albuquerque NM Balsam, Robert C. Billings MT Bandera Minerals, LLC Tulsa OK Bandy Oil & Supply, Inc. Canton KS Bandy Trucks & Supply Canton KS Baney, R.R., Operating Denver CO Bank of Texas Dallas TX Bank One Houston TX Banks Oil CO. Wichita KS Banks, Joe Oil & Gas CO. Gillette WY Banner Associates, Inc. Laramie WY BAR Treating Service, Inc. Whiteface TX Barday, Robert J. Golden CO Barken International Inc. Salt Lake City UT Barksdale, W.L. Denver CO Barnes, Tommy Casper WY Barney's Auger & Anchor Service Gillette WY Barrier Resouirces, L.L.C. Fort Worth TX Barter Equipment Co. Farmington NM Bartlett Oilfield Service Bairoil WY Barton, Jr., Roy G. Hobbs NM Bartow Welding, Inc. Roundup MT Barwin, John R. Lakewood CO Basic Earth Science Systems, Inc. Greenwood Village CO Basin Concrete, Inc. Williston ND Basin Disposal, Inc. Aztec NM Basin Perforating Farmington NM Basin Sand Blasting, Inc. Williston ND Basin Sand Blasting, Inc. Williston ND Basin Surveying, Inc. Farmington NM Basin Tubin' Testin' Williston ND Basin Tubin' Testin' Dickinson ND Basin Well Logging & Perforating Farmington NM Basin Western, Inc. Commerce City CO Bass Engineering CO., Inc. Longview TX Bass Enterprise Production CO. Fort Worth TX Bassham, Richard A. Casper WY Bateman Engineering, Inc. Lakewood CO Bauer, David L. Greenwood Village CO Bauer, Arthur C. Bismarck ND Baumgartner Resources, Inc. Castle Rock CO Bavendick, Frank J. Bismarck ND Bayless, Robert L. Denver CO Bayless, Robert L. Farmington NM BB Machine & Supply Enid OK Beach Exploration, Inc. Midland TX Beacon Environmental Assistance Corp Edmond OK Beagle's Stm Svc & Pipe Tstng&Ht Oil Borger TX Beamguard, Gordon H. Denver CO Beams, Robert J. Dallas TX Bean Resources, Inc. Lafayette LA Bear River Contractors, Inc. St. George UT Beartooth Energy Partners, LP Fort Worth TX Beaumont, Edward C. Albuquerque NM Bebout, Eli D. Riverton WY Bechtel Petroleum and Chemical, Inc. Houston TX Bechtold, G.D. Denver CO Beck Pump & Supply, Inc. Hennessey OK Becker, Bruce Wichita KS Becker, Bruce Denver CO Beddow, Patrick H. Billings MT Behm, L. E., Inc. Minot ND Bell Energy & Land CO. Westminster CO Bell's Restoration & Roustabout Service Gillette WY Bell, Kirk D. Denver CO Bellaire Oil Company Greenwood Village CO Bench Mark Geological Services Englewood CO Benco Anchor Service Vernal UT Bennett Construction Co., Inc. Farmington NM Benson Construction Inc. Gillette WY Bentley&Son Tank Truck&Hot Oil Svc Coyle OK Berexco, Inc. Wichita KS Berger Electric, Inc. Dickinson ND Berger, Glenn Englewood CO Bergman, John S. Aurora CO Bergstein Oil & Gas San Antonio TX Bergstrom Construction Antler ND Berliner, Robert A., Petroleum Corp. Los Angeles CA Bernasek, Rodney A. Lakewood CO Bernbeck Construction Utica KS Bernie Habib, P.E. Oklahoma City OK Berry Construction Argonia KS Berry Lubrication Service, Inc. Rock Springs WY Berry Petroelum Company Taft CA Berry, Jr., Kenneth R. Denver CO Berryman, WM., M Morrison CO Bettico Inc/Automated Controls Fort Worth TX Bettis Brothers, Inc. Midland TX BFI Portable Services, Inc. Denver CO BGH Gas Test Operating, Inc. Castle Rock CO BHS, Inc. (Brad's Hotshot Service, Inc.) Riverton WY Bickerstaff, Douglas B. Billings MT Big Bear Oilfield Services, Inc. Levelland TX Big D Lining Systems CO. Midland TX Big Horn Anchor Service Worland WY Big Rig Truck & Trailer Repair, Inc. Billings MT Big Sky Cementers Co. Roundup MT Big Sky Welding Service Billings MT Big Sky Well Service Belfield ND Bighorn Directional, Inc. Superior CO Bill Clark Tool & Rental Riverton WY Bill Kemerling Welding Service Gillette WY Bill R. Downs Trucking Rock Springs WY Bill's Body Shop, Inc. Grand Junction CO Bill's Casing Tong Service, Inc. Marysville CA Bill's Hydraulic Specialist Service Gillette WY Bill's Trucking, Inc. Kimball NE Bill's Welding Supply, Inc. Sharon KS Bills, Don Oil Corp. Amarillo TX Bingham Engineering Salt Lake City UT Bishop Machine CO., Inc. Oklahoma City OK Bishop Petroleum Arvada CO Bissell Oil Operating Co., Inc. Casper WY Bitgood, Charles D. Lakewood CO Bittel Excavating LaCrosse KS BJ Fisher Equipment Rental, Inc. Lone Grove OK BJ Services Co., U.S.A. Dickinson ND BJ Services Co., U.S.A. Gillette WY BJ Services Co., U.S.A. Brighton CO BJ Services Co., U.S.A. Farmington NM BJ Services Co., U.S.A. Rock Springs WY BJ Services Co., U.S.A. Vernal UT BJ Services Co., U.S.A. Tomball TX BJ Services Co., U.S.A. Denver CO BJ Services Co., U.S.A. Oklahoma City OK BJ Services Co., U.S.A. Dallas TX BJ Services Co., U.S.A. Eldorado TX BJ Services Co., U.S.A. Fort Worth TX BJ Services Co., U.S.A. Kilgore TX BJ Services Co., U.S.A. Midland TX BJ Services Co., U.S.A. Mineral Wells TX BJ Services Co., U.S.A. Odessa TX BJ Services Co., U.S.A. Pampa TX BJ Services Co., U.S.A. Perryton TX BJ Services Co., U.S.A. Snyder TX BJ Services Co., U.S.A. Tomball TX BJ Services Co., U.S.A. Tyler TX BJ Services Co., U.S.A. Ardmore OK BJ Services Co., U.S.A. Clinton OK BJ Services Co., U.S.A. Tulsa OK BJ Services Co., U.S.A. Woodward OK BJ Services Co., U.S.A. Yukon CA-YT BJ Services Co., U.S.A. Denver CO BJ Services Co., U.S.A. Houston TX BJ Services Rocky Mountain Region Laboratories Brighton CO BJ's Drill Stem Testing Mohall ND BJ's Drill Stem Testing Williston ND BJ's Oilfield Construction, Inc. Blanchard OK Black Dahlia Oil & Gas Co. Salt Lake City UT Black Diamond Energy, Inc. Englewood CO Black Gold Dozers Fairview OK Black Hawk Crane & Rigging Inc. Gillette WY Black Hills Exploration & Production, Inc. Rapid City SD Black Hills Trucking, Inc. Casper WY Black Hills Trucking, Inc. Gillette WY Black Hills Trucking, Inc. Williston ND Black Hills Trucking, Inc. Dickinson ND Black Hills Trucking, Inc. North Salt Lake UT Black Oil Company, Inc. Addison TX Black Stone Minerals Company, LP Houston TX Black Type LP Denver CO Blackburn Construction, Inc. El Dorado KS Blackhawk Geometrics Golden CO Blaha, James A. Littleton CO Blaha, Robert W. Aurora CO Blair, John M. Billings MT Blake-Berry-Blake Corp Liberty TX Blake-Berry-Blake Corp Denver CO Blakley Oilfield Sevice Co Farmington NM Blauer, Roland E. Denver CO Blhowiak Wireline CO. (TEWECO) Mineral Wells TX Blhowiak Wireline CO. (TEWECO) Granbury TX Bligh Oil & Minerals, NL Brisbane, Queenland 00 Blkey, Inc. Tulsa OK Bloom Oil Field Electric Service Oklahoma City OK Bloom, W.R. Englewood CO Bloomquist, Charles W. Denver CO Blott, Dr. J. Edward Littleton CO Blough Holm & Co. Cody WY Blue & Gray Resources, Inc. Parker CO Blue Fox Royalty LP Denver CO Blue Ridge Enterprises Broomfield CO Blue-Jet, Inc. Farmington NM Blume, Fred P. Cheyenne WY Boardman Oil & Gas Denver CO Bob Covelli Welding Weldona CO Bob Dunlap Dozer Services, Inc. Drummond OK Bob's Oil Field Service, Inc. Belfield ND Bob's Oil Service Ellinwood KS Bob's Production Service Casper WY Bob's Welding & Repair Delta CO BOC Gases Arvada CO BOC Gases Woodward OK Bodynamics Corp. Oklahoma City OK Boekel, F.W. Englewood CO Boekel, R.G. Englewood CO Boettcher & Sons, Inc. Salt Lake City UT Bogner Oilfield Service Garden City KS Bogus, Harry M. Lakewood CO Bohanan Welding & Construction CO. Liberal KS Bois D'Arc Offshore, Ltd. Houston TX Bolenbaugh, Michael Billings MT Bolin Welding Dickinson ND Bomholt, Carl M. Aurora CO Bond, Wendell A., Inc. Superior CO Bookman, Ronald A. Evergreen CO Boomer Tank Trucks, Inc. Enid OK Boonenberg, W.G., O&G Properties Denver CO Boots & Coots/IWC Houston TX Boots & Coots/IWC Anaco-Edo Anz SD BOP Repair & Machine, Inc. Houston TX Borden Chemical, Inc. Littleton CO Boren Electric, Inc. Roosevelt UT Bortz, Louis C. Denver CO BOS. Inc. Fairview MT Boulden Contracting Co. Moab UT Boulden Contracting Co. Gateway CO Bowen Welding & Oilfield Service Sweetwater TX Bower Petroleum Service, Inc. Worland WY Bowling Petroland Company Denver CO Bowman, Joseph Denver CO Boyd Oil Treating CO. Olmitz KS Boyd Rosene & Associates Tulsa OK Boyd, Richard G. Casper WY Boyd, Thomas & Associates/All-Bron LTD. Casper WY Boyer Industrial Engine Borger TX Boynton, Burritt Denver CO Boysen Lake Rental, Inc. Shoshoni WY BP Amoco Houston TX BPB Instruments Oklahoma City OK BPC Operating CO Tulsa OK BPF Norm Remediation Duncanville OK Bracken Line Cleaning, Inc. Claflin KS Brady Fluid Service, Inc. Garden City KS Brady, Leo M. Denver CO Brake, Inc. Latham KS Bran-Dex Wireline Service Sterling CO Brand X Perforators, Inc. Woodward OK Brandon Construction, Inc. Powell WY Branick Mzagneto Russell KS Braun, W. L. Bismarck ND Breckenridge Packer Services Breckenridge TX Breisch & Associates Sand Springs OK Breitenbach Petroleum Corp. Denver CO Brent's Tank Trucks, Inc. Ames OK Breton Sound Resources, L.L.C. Baton Rouge LA Briggs Pipe & Supply Holliday TX Brigham Exploration CO. Austin TX Bright, M.J. Minerals Development, Inc. Lakewood CO Brinkerhoff, The Company Denver CO Bristow Hot Oil & Steam Service, Inc. Bristow OK British-Borneo Houston TX Britt Dirt Contracting, Inc. Lamesa TX Britt Trucking Co., Inc. Lamesa TX Britt Trucking CO., Inc. Odessa TX Brooks Service, Inc. Mineral Wells TX Brousseau, Dale E. Laramie WY Brown Operating, Inc. Casper WY Brown Welding Supply, LLC Salina KS Brown, C. Elmo Denver CO Brown, Harold H. Farmington NM Brown, III, H. Kirk Denver CO Brown, J. Burns Operating CO. Havre MT Brown, Jr., William Travis Englewood CO Brown, Keith J. Grand Junction CO Brown, Mark E. Denver CO Brown, Maurice J. Rapid City SD Brown, Melvin A. Billings MT Brown, Melvin A. Las Vegas NV Brownlie, Wallace, Armstrong & Barnes Denver CO Bruns Electric Culbertson MT Brunt Surveying Service Chickasha OK Bruton Service Co., Inc. Denver City TX Bryan, Michael E. 'Mike' Lonetree CO Bryson Enterprises Casper WY BS Production CO. Denver CO BTA Oil Producers Denver CO Bucher, Willis & Ratliff Corp. Aurora IL Buck Bruce Electric, Inc. Sharon OK Buckeye Supply Co. Russell KS Bucklen Equipment Co., Inc. Greeley CO Bucy, M. Peyton Denver CO Bud's Engine Service Ft. Morgan CO Bulk Gases Murray Hill NJ Bull Dog Tool Hobbs NM Bull Dog Tool Oklahoma City OK Bull Rogers, Inc. Hobbs NM Bulldog Electric Pampa TX Bullock, Art Casper WY Bullseye Oilfield Service, Inc. Pratt KS Buna, Adam C. Longmont CO Burdick Paving Co. Roosevelt UT Burk Royalty CO. Wichita Falls TX Burks Oil & Gas Properties, Inc. Houston TX Burlington Resources Houston TX Burlington Resources Houston TX Burnett Energy, Inc. Williston ND Burney & Associates Taos NM Burns Spraying Service Jetmore KS Burwick Oilfield Services, Inc. Bronte TX Busha Enterprises, Inc. Greeley CO Busha Enterprises, Inc. Parachute CO Butler & Cook, Inc. Fort Smith AR Butler Brothers, Inc. Winfield KS Butler Energy Company Denver CO Butler, Gary Denver CO Butte Swabbing Dinosaur CO Butterfly Supply Great Bend KS BWR Enterprises Cortez CO C Anderson & Son Trucking, Inc. Rock Springs WY C Brewer, Inc. Roundup MT C&C Machinery,Inc. Russelville AR C&C Surveying & Associates, Inc. Anson TX C&C Tank Service, Inc. Sterling KS C&C Tank Truck Service, Inc. Enid OK C&C Tank Truck Service, Inc. Wewoka OK C&F Pipeline Service, Inc. Waukomis OK C&J Trucking Co. Farmington NM C&J Trucks, Inc. Seminole OK C&L Royalty Denver CO C&M Oilfield Service Baker MT C&S Transports Erick OK C&Y Transportation Co., Inc. Casper WY C-Desco Denver CO CA White Wireline Services Casper WY Cable, Inc. Sterling CO Cable, Inc. Gillette WY Caffey Energy Arlington TX Cagle Consulting, Inc. Denver CO Cagle Oilfield Services, Inc. Tulsa OK Cagle Oilfield Services, Inc. Clinton OK Cagle Oilfield Services, Inc. Corpus Christi TX Calder Services, Inc. Farmington NM Calenergy Gas (UK) Limited London Westm86T 00 Calkin, Bill Golden CO Calloux & Associates Ransom Canyon TX Calpine Corporation Houston TX Calvert, Edward D. Riverton WY Calvin Mays Oilfield Guthrie OK Calvin, David J. Greeley CO Cam Wireline Service, Inc. Amarillo TX Cambria Oil Co. Casper WY Cameron Wellhead Services Inc. Grand Junction CO Campbell & Associates, Inc. Norman OK Campbell & Associates, Inc. Cody WY Campbell County Air Freight Gillette WY Campbell Grading, Inc. Shoshoni WY Campbell Testing Company Odessa TX Campbell, Douglas A. Greeley CO Campbell, R.A. Oilk CO. Billings MT Campen, Betsy Billings MT CamWest, Inc. Denver CO Canadian Ditching Service, Inc. Canadian TX Canadian Occidential Petroleum Dallas TX Cannon Exploration CO. Tecumesh OK Cannon, Dale E. Kimball NE Canvas Products Co. Grand Junction CO Canyon Concrete Sand & Gravel Ltd. Thermopolis WY Capstone Oil & Gas Company, LP Midland TX CapWest Resources, Inc. Midland TX Carboline CO. St. Louis MO Carbotek Development Laboratories Houston TX Cardinal, Donald F. Casper WY Cardinal, Floyd Del Mar CA Carl's Water Service, Inc. Gillette WY Carlson, Kendall P. Arvada CO Carousel Energy Operating LLC Franktown CO Carpenter & Sons Inc Casper WY Carpenter Oilfield Construction Denver City TX Carr Resources, Inc. Tyler TX Carr, Fred H. Casper WY Carroll, PE Thomas M Denver CO Carter Oil & Gas, Inc. Richmond VA Cartwright Transfer & Storage Skiatook OK Cartwright Transfer & Storage Sand Springs OK Cary Stehle Craig CO Case Services, Inc. Houston TX Caspar Building Systems, Inc. Casper WY Casper Air Services Casper WY Casper Barrel & Drum Mills WY Casper Equipment Rentals, Inc. Casper WY Casper Equipment Rentals, Inc. Evanston WY Casper Equipment Rentals, Inc. Marrero LA Casper Fire Extinguisher Service Casper WY Casper, Gary T. Casper WY Castronics, Inc. Kimball NE Caswell, The Silver Partnership Denver CO Cate Logging Park City UT Cathodic Protection Services Houston TX Cathodic Protection Services Midland TX Cathodic Protection Services Sand Springs OK Cathodic Protection Services Liberal KS Cathodic Protection Services Billings MT Cathodic Protection Services Farmington NM Catterson, Paul F. Evergreen CO Cavins Corp Jacksboro TX Cavins Corp. Houston TX Cavins Corp. Oklahoma City OK Caz-Tach Houston TX CB Energy, LL Houston TX CBM Services, Inc. Durango CO CCS Control Systems Oak Hills CA CEC Resources Ltd Denver CO Cecil Machine Shop Wichita Falls TX Ceda Inc. Mandan ND Ceda Inc. Clearfield UT Cedarhill Operating CO., LLC Tuscaloosa AL Cementers Energy Inc. Greeley CO Cementers, Inc. Farmington NM Cenalta International Trading, Inc. Houston TX Centennial Archaeology, Inc. Fort Collins CO Centennial Engineering & Research, Inc. Sheridan WY Centennial Engineering & Research, Inc. Gillette WY Centennial Engineering & Research, Inc. Douglas WY Center Line Data Lakewood CO Central Chemical CO. Enid OK Central Dirt Service Wichita KS Central Dirt Service Kingman KS Central Kansas Surveying & Mapping Great Bend KS Central Machine Shop Russell KS Central Processor Global Inc.Slofter Karlsruhe 00 Central Texas Tool CO. Abilene TX Central Transmission Systems CO. Denver CO Central Wyoming Production Service Glenrock WY Centrilift Service & Spooling/Bonding Bairoil WY Centrilift Service & Spooling/Bonding Rangely CO Centrilift Service & Spooling/Bonding Casper WY Century Inspection, Inc. Dallas TX Century Oil Acquisition L.L.C. Fairfield IA Certified Welding Corporation Cheyenne WY Certified Welding, Inc. Duchesne UT CF Dilts Construction Co., Inc. Newcastle WY CF&M Oil Field Services, Inc. Farmington NM CGS (Chuck's General Service) Big Piney WY CH Yarber Construction, Inc. Cheyenne WY CH2M/Hill Denver CO CH2M/Hill Salt Lake City UT CH2M/Hill Boise ID CH2M/Hill Albuquerque NM Chaco Energy CO. Denver CO Challenger Minerals, Inc. Houston TX Chamberlain, C. Kent & Assoc. Worland WY Champion Exploration Corp. Midland TX Channel Petroleum Inc Littleton CO Chaparral Equipment & Service CO., Inc. Longview TX Chapman Trucking Co., Inc Casper WY Charlie Brown Industrial Odessa TX Charter Development Corp. Wichita KS Chase Bank of Texas Dallas TX Chase Tank Service Chase KS Chase Trucking, Inc. Pampa TX Chem Tech Services Leveland TX Chem-Frac, Inc. Casper WY Chem-Trol, Inc. Kansas City KS Chem-Trol, Inc. Wichita KS Chemical Consultants Gillette WY Chemical Weed Control, Inc. Casper WY Chemical Weed Control, Inc. Brownfield TX Chemical Weed Control, Inc. Andrews TX Chemical Weed Control, Inc. Hobbs NM Cheniere Energy, Inc. Houston TX Chevron North America Exploration & Production Houston TX Cheyenne Oil Service, Inc. Ness City KS Cheyenne Oil Service, Inc. Utica KS Cheyenne Oil Service, Inc. Russell KS Cheyenne Services, Inc. Houston TX Chickasha Manufacturing CO. Chickasha OK Chickasha Tool & Maintenance Chickasha OK Chief Well Logging Co., Inc. Henderson CO Chief Well Logging Co., Inc. Denver CO Childers Trucking Casper WY Chippewa Construction Co. Douglas WY Cholla Petroleum, Inc. Midland TX Chris Hunt Water Hauling Contractors, Inc. Keyes OK Christian's Welding Service Dill City OK Cimarron Oilfield Service Farmington NM Cimarron Production Oklahoma City OK Cimarron Resources Inc Aurora CO Circle A Trailer Sale Ellis KS Circle B Roustabout, Inc. Sidney NE Circle D Services La Pointe UT Circle H Steam Service Skellytown TX Circle K Services, Inc. Woodward OK City Grille Denver CO CJD Investments LTD Partnerships Denver CO Cla--Mar Oil CO. Hays KS Clair Machine Works, Inc. Casper WY Clark Backhoe & Const. Service Breckenridge TX Clark, Douglas M. Billings MT Clark, James F. Oil Properties Casper WY Clark, Lawton L. Denver CO Clark, William R. Littleton CO Clark-Reed & Associates Durango CO Clarke Corp. Medicine Lodge KS Clausen's Welding, Inc. Williston ND Clawson Petroelum Consultants, Inc. Ventura CA Claxton, William C. Englewood CO Clay Tank Trucks, Inc. Denver City TX Clay's Electrical Service, LLC Powell WY Clay-Groomer Machine Shop Farmington NM Clayton Williams Energy, Inc. Houston TX Clean It CO., Inc. Oklahoma City OK Cleveland Inspection Services, Inc. Cleveland OK Cloward's Appraisal Service Roosevelt UT Clute Oil Corp Englewood CO CLX Energy, Inc. Denver CO Clymore Painting, Inc. Worland WY CMC Inspection Service Evanston WY CMI-TECO Casper WY CMS Energy Tulsa OK CMS Oil & Gas CO Houston TX Cobia Oil & Gas, L.L.C. Beaumont TX Coblaco Services, Inc. Aurora CO Cobra Exploration CO. Wichita Falls TX Cody Energy, LLC Denver CO Cody Mud Co., Inc. Enid OK Cody Oil & Gas Corporation Bismarck ND Cohen, Lawrence W. 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Coalville UT Gee Oil Service St. John KS Geigers Oilfield Construction, Inc. Sidney NE Geigers Oilfield Construction, Inc. Sidney NE Gene Cook, Inc. Woodward OK Gene Myers, Inc. Dickinson ND Gene Myers, Inc. Sidney MT Gene Myers, Inc. Williston ND Gene's Hot Shot & Trucking Sayre OK General Roustabout Service Russell KS Genesis Producing CO. Corpus Christi TX GEO Testing Oklahoma City OK GEO Testing Krebs OK Geo-Recovery Systems, Inc. Golden CO Geodynamic Well Logging, Inc. May OK Geological Logging CO. Oklahoma City OK Geoplus Corporation Tulsa OK George Brothers Fabrication, Inc. Grand Junction CO George Brothers Fabrication, Inc. Midland TX George Brothers Fabrication, Inc. Grand Junction CO George Cook Trucking Wewoka OK George H Neef Welding Works Pampa TX George L. McLeod, Inc. Houston TX George Lease Service Perryton TX George T Weldon Construction Vernal UT George's Roustabout Service, Inc. Gillette WY Geoservices, Inc. Houston TX Geoservices, Inc. 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Ogden UT Gray Welding Galva KS Gray Wireline Service Levelland TX Great Basin Petroleum, Inc. Salt Lake City UT Great Bend Hydro Test & Supply, Inc. Great Bend KS Great Bend Hydro Test & Supply,Inc. Russel KS Great Plains Fluid Services, Inc. Wichita KS Great Plains Inspection Great Bend KS Great Plains Surveying Holyoke CO Green Country Chemicals Pawhuska OK Green Country Chemicals Shidler OK Green Country Chemicals Woodward OK Green Country Chemicals Edna TX Green Country Wireline, Inc. Dewey OK Green Oil & Field Service, Inc Roundup MT Green River Basin Well Service, Inc. Big Piney WY Greenbriar Operating CO. Dallas TX Greensburg Oilfield Services Greensburg KS Greer Services Casper WY Greer's Sandblasting & Protective Ctngs El Dorado KS Greg's Welding, Inc. Gillette WY Greka Energy Tulsa OK Grider Trucking CO., Inc. Sonora TX Griffin Petroleum CO. Midland TX Grizzly Welding LaSalle CO GTM Ltd. Meeker CO Guildner Pipeline Maintenance, Inc. Westminster CO Gulf Production Corp. 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