Our corporate members, from the largest major oil company to the smallest of independents, come from all sectors of the industry. They are producers, refiners, suppliers, pipeline operators and marine transportation companies, as well as service and supply companies that support all segments of the industry. Our members are committed to develop and adhere to the highest level industry standards, protect the environment, and lead in health and safety performance.
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A
A.HAK INDUSTRIAL SERVICES US, LLC
A.W. CHESTERTON COMPANY
A+ CORPORATION, LLC
ABB/TOTALFLOW
ACCURATE MEASUREMENT CONTROLS, INC.
ACI SERVICES
ACUREN
ACV ENVIRO
ADVANCE TANK & CONSTRUCTION COMPANY
ADVANCE VALVES
ADVANCED CORROSION TECHNOLOGIES & TRAINING, LLC
AECOM ENVIRONMENT GROUP
AESOLUTIONS
AGAR CORPORATION, INC.
AHR METALS
ALATAS AMERICAS INC.
ALCOA OIL AND GAS
ALL-PRO FASTENERS, INC.
ALLERION OILFIELD SERVICES, INC.
ALLOY BELLOWS AND PRECISION WELDING
ALYESKA PIPELINE SERVICE COMPANY
AMEC FOSTER WHEELER
AMERICA-APEX B.V.
AMERICAN BLOCK CO
AMERAPEX CORPORATION
AMERICAN INSPECTION SERVICES, INC.
AMERICAN SHALE OIL LLC
AMERIDRIVES INTERNATIONAL
AMSPEC SERVICES LLC
AMYRIS INC.
ANADARKO PETROLEUM CORPORATION
ANTEA GROUP.
AOI INTERNATIONAL, INC.
APACHE CORPORATION
APAVE INTERNATIONAL
APPLIED - CLEVELAND HOLDINGS, INC.
APPLUSRTD
AQUASOL CORPORATION
AQUILEX CORPORATION
ARCELOR MITTAL USA
ARCTIC OILFIELD SERVICES
ARGUS CONSULTING
ARI INDUSTRIES INC.
ARIEL CORPORATION
ARSEAL TECHNOLOGIES LLC
A.R. WATSON, INC.
ASHFORD TECHNICAL SERVICES
AST CONSTRUCTION
A-T CONTROLS, INC.
ATHENS GROUP
AUDIE PRICE INSPECTION, INC.
AVERY TECHNICAL RESOURCES
A.W. CHESTERTON COMPANY
B
BADGER METER INC.
BAKER ENGINEERING & RISK CONSULTANTS, INC.
BAKER HUGHES, A GE COMPANY
BALTIC CONTROL LTD.
BARRIOS TECHNOLOGY
BAR SOURCE INTERNATIONAL, LLC
BASE LINE DATA, INC.
BBA
BECHT ENGINEERING CO., INC.
BECHTEL CORPORATION
BELL TECHNOLOGIES, LLC
BELLE FOURCHE PIPELINE
BELZONA, INC.
BENCH TREE GROUP
BENOIT PREMIUM THREADING, LLC
BENTELER STEEL/TUBE MANUFACTURING CORP.
BERIC-DAVIS COMPANIES INTERNATIONAL LTD.
BESTOLIFE CORPORATION
BHL INTERNATIONAL, INC.
BHP
BIGHORN INSPECTION, INC.
BIRWELCO USA INC.
BLACK GOLD PUMP & SUPPLY
BLACKMER
BOUSTEAD INTERNATIONAL HEATERS LIMITED
BOWEN INDUSTRIAL CONTRACTORS, INC.
BP AMERICA INC.
BREEN ENERGY SOLUTIONS
BRI-STEEL MANUFACTURING
BRODIE INTERNATIONAL
BS&B SAFETY SYSTEMS, L.L.C.
BUREAU VERITAS NORTH AMERICA, INC.
BURCKHARDT COMPRESSION (US) INC.
BUREAU VERITAS ECUADOR C.A.
BURNS & MCDONNELL
C
C & W TANK, INC.
CABOT OIL & GAS CORPORATION
CALDWELL TANKS, INC.
CALLIDUS TECHNOLOGIES, LLC
CAMIN CARGO CONTROL
CAN USA, INC.
CAPE ENVIRONMENTAL MANAGEMENT INC.
CAPLUGS
CARE ION TECHNOLOGIST SDN. BHD.
CARPENTER TECHNOLOGY CORPORATION
CASHCO INC.
CATSI
CAVERN SOLUTIONS, INC.
CERTIFIED CALIBRATIONS, INC.
CETEK LIMITED
CHARTER BROKERAGE
CHARTER INDUSTRIAL SUPPLY, INC.
CHATTANOOGA BOILER & TANK, INC.
CHECK-6
CHEMSTAR
CHENIERE ENERGY, INC.
CHESAPEAKE ENERGY
CHEVRON CORPORATION
CIMAREX ENERGY CO.
CIRCOR ENERGY PRODUCTS, INC.
CITADEL CASING SOLUTIONS
CLEARSIGN COMBUSTION CORPORATION
CJ WINTER MACHINE TECHNOLOGIES
CNC FLOW CONTROL
COASTAL FLOW MEASUREMENT, INC.
COASTAL GULF & INTERNATIONAL, INC.
COGNASCENTS CONSULTING GROUP, INC.
COLLINS ENGINEER INC.
COLONIAL PIPELINE COMPANY
COLORADO ENGINEERING EXPERIMENT STATION, INC.
COLUMBIA INDUSTRIES
COLUMBUS MCKINNON CORPORATION
COMPRESSOR CONTROLS CORPORATION
CONBRACO INDUSTRIES, INC.
CONCO SERVICES CORPORATION
CONOCOPHILLIPS
CONSOLIDATED FABRICATION & CONSTRUCTORS
CONSOLIDATED PRESSURE CONTROL, LLLP
CONSULTING AND FIELD SERVICES, LLC
CORROSION CONTROL INC.
CORTEC, LLC
CPW AMERICA CO.
CRC-EVANS PIPELINE INTERNATIONAL
CRESTONE PEAK RESOURCES
CROSSBRIDGE COMPLIANCE
CROWNQUEST OPERATING, LLC
CRYOSTAR
CST COVERS
CYNTECH SERVICES
D
DANIEL MEASUREMENT & CONTROL, INC.
DEEPWATER SUBSEA LLC
DET NORSKE CLASSIFICATION (AMERICAS)
DEVON ENERGY CORP.
DIAMOND OFFSHORE
DIXON EAGLE
DJA INSPECTION SERVICES, INC.
DNV-GL
DOMINION NDT SERVICES, INC.
DOVER ARTIFICIAL LIFT
DOW CHEMICAL COMPANY
DOWNHOLE PRODUCTS USA
DOXSTEEL
DRIL-QUIP
DUOLINE TECHNOLOGIES, L.P.
DURA-BAR
DYNAMIC FLOW COMPUTERS
DYNAMIC SHELTERS LTD.
DYNAMICS SCIENTIFIC PRODUCTION CENTER USA, INC.
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EAGLE RESEARCH CORPORATION
ECHO ULTRASONICS, LLC
ELECSYS CORPORATION
ELECTRIC MACHINERY COMPANY
ELECTROLAB
ELEMENTIS SPECIALITIES
ELEMENT INTEGRITY GROUP, INC.
ELLIOTT SERVICES, INC.
EN ENGINEERING
ENBRIDGE, INC.
ENCANA
ENDRESS+HAUSER FLOWTEC AG
ENERCON GROUP, INC.
ENERGI INSURANCE SERVICES, INC.
ENERGY EXCHANGER COMPANY
ENERGY WORLDNET, INC.
ENERSURV, INC.
ENERSYS CORPORATION
ENERVEST LTD.
ENGINEERING & INSPECTION SERVICES, LLC
ENGINEERING PARTNERS INTERNATIONAL, INC.
ENPRO INDUSTRIES PVT LTD
ENSCO PLC
ENVIROEYE LLC
EQUINOR
EQUIPMENT RESOURCES INTERNATIONAL, INC.
EQUITY ENGINEERING GROUP, INC.
ERM - ENVIRONMENTAL RESOURCES MANAGEMENT
ESTEEM PROJECTS, LLC
EVONIK OIL ADDITIVES
EXTRACTION OIL & GAS INC.
EXPLORER PIPELINE COMPANY
EXXONMOBIL
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FASTENAL COMPANY
FBV, INC.
FILLD
FIND CONSULTING INC.
FISHER TANK COMPANY
FIVE STAR PRODUCTS INC.
FLEXIM AMERICAS CORP.
FLEXITALLIC GROUP, INC.
FLEXSTEEL PIPELINE TECHNOLOGIES, INC.
FLOW DATA, INC.
FLOW MANAGEMENT DEVICES, LLC
FLUOR CORPORATION
FOERSTER INSTRUMENTS INC., USA
FORUM VALVE SOLUTIONS
FOSS MARITIME COMPANY
FOX THERMAL INSTRUMENTS, INC.
FRANKLIN VALVE LP
FRONTIER INTEGRITY SOLUTIONS
FUJISAN SURVEY, S.A. DE C.V.
FULL SAIL GROUP, LLC
G
GARLOCK SEALING TECHNOLOGIES
GAS AND AIR SYSTEMS, INC.
GATES CORPORATION
GBR
GEARENCH
GE ENERGY/ BENTLY NEVADA
GENERAL ELECTRIC INSPECTION SERVICES
GILBARCO VEEDER-ROOT
GLOBAL TOOLING SPECIALTIES, INC.
GLOBALQUIMICA PARTNERS, LLC
GRAYWOLF INDUSTRIAL, INC.
GREAT SOUTHERN TECHNOLOGIES
GULF COAST FABRICATORS LLC
GULF INTERSTATE ENGINEERING COMPANY
GULFSTREAM SERVICES, INC.
H
HAMON DELTAK, INC.
HALLIBURTON COMPANY
HARVEY E. YATES COMPANY (HEYCO)
HAWMAN CONTAINER SERVICES
HESS CORPORATION
HIGHPOINT RESOURCES CORPORATION
HMT, INC.
HOBRÉ USA INC.
HOIST AND CRANE SERVICE GROUP
HOLLAND 1916
HOLLOWAY HOUSTON, INC.
HOLLY ENERGY PARTNERS, L.P.
HONEYWELL ENRAF AMERICAS INC.
HOOVER FERGUSON
HORIBA INSTRUMENTS, INC.
HOWDEN BURTON CORBLIN COMPRESSOR
H. ROSEN USA, INC.
HSI GROUP, INC.
HUDSON PRODUCTS CORPORATION
HULL & ASSOCIATES, INC.
HUNT CONSOLIDATED INC.
HUNTING ENERGY SERVICES
HUNTINGTON TESTING & TECHNOLOGY, INC.
HY-GRADE VALVE, INC.
HYDAC TECHNOLOGY CORPORATION
HYDRAFAB
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ICL CALIBRATION LABORATORIES, INC.
ICO ASIAPACIFIC SINGAPORE PTE. LTD.
IDEMITSU LUBRICANTS AMERICA
IDOM, INC.
IESCO LLC
INDUSTRIAL MOTOR POWER CORPORATION
INDUSTRONIC, INC.
INFINEUM
INNOVA GLOBAL
INSPECTEST (PVT.) LIMITED
INSPECTORATE AMERICA CORP.
INTEGRATED PROTECTION SERVICES, INC.
INTEGRITY INSPECTION SERVICES
INTEGRITY PLUS
INTEGRITY SOLUTIONS, LTD.
INTEGRITY TESTING & INSPECTION, INC.
INTERDYNE CORPORATION
INTERNATIONAL DERRICK SERVICES, LLC.
INTERSPEC, LLC
INTERSTATE ENERGY COMPANY
INTERTEK
INQUEST INC.
ioMOSAIC CORPORATION
IRED THERMAL GROUP Ltd.
IRISNDTMatrix Corp.
ITT CORPORATION
J
JAMES MACHINE WORKS, INC.
JCL SERVICE COMPANY LLC
JD NEUHAUS LP
JET-LUBE, INC.
JFE STEEL AMERICA, INC.
JIACCO PAKISTAN PVT LIMITED
J.J. WHITE , INC.
JOHN CRANE INC.
JOHN L. LOWERY & ASSOCIATES, INC.
JOULON
JSW STEEL USA INC.
K
K.P. KAUFFMAN COMPANY, INC.
KBK INDUSTRIES
KEYSTONE SHIPPING
KOLKHORST PETROLEUM COMPANY
KROHNE, INC.
L
L & J TECHNOLOGIES
LADISH VALVES
LAFARGEHOLCIM
LAMTEC AMERICA, INC.
LARSEN & TOUBRO LIMITED
LEE SPECIALTIES INC.
LEISTRITZ ADVANCED TECHNOLOGIES CORPORATION
LIGHTHOUSE ENVIRONMENTAL SERVICES, INC.
LIGHTNING ELIMINATORS & CONSULTANTS, INC.
LIQUID CONTROLS GROUP
LIQUIDPOWER SPECIALTY PRODUCTS INC. (LSPI)
LLOYD'S REGISTER AMERICAS
LLOYD'S REGISTER ENERGY AMERICAS, INC.
LOADMASTER ENGINEERING
LONE STAR INDUCTION, INC.
LOOP LLC
LORD CORPORATION
LUBRIZOL CORPORATION
M
MAERSK DRILLING
MAGELLAN MIDSTREAM PARTNERS
MAGNAFLUX
MAGNETIC ANALYSIS CORPORATION
MAGNUM PIERING, INC.
MAIN LINE MEASUREMENT
MANGAN, INC.
MAP OIL TOOLS
MARATHON OIL COMPANY
MARATHON PETROLEUM CORPORATION
MARINE SPILL RESPONSE CORPORATION
MARKWEST ENERGY PARTNERS, LP
MARTIN CONSTRUCTION INC.
MASS TECHNOLOGY CORPORATION
MATRIX SERVICE COMPANY
MAVERICK TESTING LABORATORIES, INC.
MCCROMETER
MCDANIEL TECHNICAL SERVICES, INC.
MCDERMOTT INTERNATIONAL INC.
MECHATRENDS CONTRACTORS CORP.
MERICHEM COMPANY
MERIDIUM, INC.
MESA INDUSTRIES
METER ENGINEERS, INC.
MICRO MOTION, INC.
MIDCONTINENTAL CHEMICAL COMPANY
MIDWESTERN SERVICES, INC.
MILLER CONSULTING SERVICES
MILWAUKEE VALVE COMPANY
MISTRAS GROUP, INC.
MITSUBISHI CORPORATION (AMERICAS)
MMC INTERNATIONAL CORP.
MODERN REFRACTORY INC.
MOGAS INDUSTRIES
MOKVELD VALVES, INC.
MOODY INTERNATIONAL, INC.
MOTIVA ENTERPRISES LLC
MURPHY OIL CORPORATION
MUSE, STANCIL & COMPANY
N
NATIONAL COMPLIANCE MANAGEMENT SERVICE, INC.
NATIONAL OILWELL VARCO
NATIONAL PUMP COMPANY
NATIONAL STEEL CAR
NATIONWIDE BOILER INCORPORATED
NAVAJO NATION OIL & GAS COMPANY
NAVARIK CORP.
NAVASOTA OILFIELD SERVICES, INC.
NDE TECHNICAL SERVICES, INC.
NDT GLOBAL LLC
NESTE OIL
NEUMAN & ESSER USA, INC.
NEWFIELD EXPLORATION COMPANY
NEWMARKET CORPORATION
NEWPARK RESOURCES, INC.
NICHOLS ENGINEERING CONSULTANTS LLC
NMK RESOURCES INC.
NOBLE CORPORATION
NOBLE ENERGY INC.
NOIL PETROLEUM CORPORATION
NORTHERN STATES FISHING TOOLS CO., INC.
NUSTAR ENERGY L.P.
NVI, LLC
O
OCCIDENTAL OIL & GAS CORPORATION
OCEAN SHIPHOLDINGS, INC.
OCEANEERING INTERNATIONAL, INC.
OSECO INC.
OCS GROUP
OFI TESTING EQUIPMENT, INC. (OFITE)
OFS INTERNATIONAL LLC
OIL & GAS PROCESS SOLUTIONS
OIL CENTER RESEARCH INTERNATIONAL, L.L.C.
OIL INSPECTIONS (USA), INC.
OK LEASING LATIN AMERICA, INC.
OMNI FLOW COMPUTERS, INC.
ONEOK
ONSHORE QUALITY CONTROL SPECIALIST, LLC
OPAMP INFORMATION MANAGEMENT
OPEN SYSTEMS INTERNATIONAL, INC.
OPTASENSE
ORBITAL ENGINEERING, INC.
OTC SOLUTIONS, LLC
OVAKO NORTH AMERICA, INC.
P
PACIFIC DRILLING SERVICES, INC.
PALA-INTERSTATE, LLC
PARAGON INDUSTRIES, INC.
PARKER DRILLING COMPANY
PARKER HANNIFIN CORPORATION
PARKER PGI
PASO ROBLES TANK, INC.
PATTERSON TUBULAR SERVICES
PBM, INC.
PCA ENGINEERING, INC.
PEAK AI SOLUTIONS, INC.
PEAKER ENERGY GROUP, LLC
PEERLESS DYNAMICS
PENNSYLVANIA GENERAL ENERGY, LLC
PETROCARE MARINE CONSULTANTS, INC.
PETROCHEM INSPECTION SERVICES
PETRO-HUNT, LLC
PETROMAR INTERNATIONAL INC.
PETRON DEVELOPMENT COMPANY
PETROSPECT, INC.
PETROTEQ ENERGY
PHILADELPHIA GEAR CORPORATION
PHILLIPS 66
PILGRIM PIPELINE HOLDINGS, LLC
PINNACLE OIL
PINNACLEART
PIONEER INDUSTRIAL CORPORATION
PIONEER NATURAL RESOURCES COMPANY
PLAINS ALL AMERICAN PIPELINE, L.P.
PLS CONSTRUCTION, INC.
POCAR SEAL
POND & COMPANY
PORTLAND PIPE LINE CORPORATION
POSCO
POTOMAC ENVIRONMENTAL, INC.
POWERPLAN
PRECISION CRANE & HYDRAULICS, LLC
PRECISION DRILLING OILFIELD SERVICES CORPORATION
PREMIUM INSPECTION & TESTING, INC.
PRIMARY SOURCING CORP
PRIME ENGINEERING INCORPORATED
PROJECT CONSULTING SERVICES, INC.
PROMAT, INC.
PRO-SURVE TECHNICAL SERVICES, LLC
PROVENANCE CONSULTING
PROTECTOSEAL COMPANY
PRUITT TOOL & SUPPLY CO., INC.
Q
QEP RESOURCES, INC.
QUEST CONSULTANTS INC.
QUALITY CONTROL COMPANY
QUALITY CUSTOMS INSPECTIONS & LABORATORIES
QUALITY INTEGRATED SERVICES, INC.
QUANTITYWARE
QUEST INTEGRITY USA, LLC
QUINTANA INFRASTRUCTURE & DEVELOPMENT LLC
R
RAVENOPS, INC.
RCP INC.
RDT, INC.
REBL REFRACTORIES EVALUATIONS LABORATORY ULC
RECON ENGINEERING AND CONSTRUCTION
REDI INSPECTION SERVICES, LLC
REPSOL E&P USA INC.
ROBERT J. JENKINS AND CO.
ROBINSON FANS, INC.
ROBINSON INTERNATIONAL (USA), INC.
ROCKFORD CORPORATION
ROCKWOOL TECHNICAL INSULATION
ROCKY MOUNTAIN FABRICATION
ROLFSON OIL, LLC
ROWAN COMPANIES, INC.
ROXTEC, INC.
R.T. VANDERBILT COMPANY, INC.
RUHRPUMPEN, INC.
S
S&S PLATING LLC
SABINE SURVEYORS, LTD.
SAFETY-KLEEN SYSTEMS, INC.
SAVAGE SERVICES CORPORATION
SAVANT MEASUREMENT CORPORATION
SAYBOLT INC.
SCAN SYSTEMS CORP.
SCELERIN HEATERS LLC
SCENIC PRECISE ELEMENT, INC.
SCHLUMBERGER LIMITED
SCHNEIDER ELECTRIC SOFTWARE CANADA, INC.
SCHRAMM, INC.
SDS PETROLEUM CONSULTANTS, L.L.C
SEABULK INTERNATIONAL INC.
SEADRILL AMERICAS, INC.
SEMGROUP CORPORATION
SENIOR FLEXONICS INC.
SENTINEL INTEGRITY SOLUTIONS
SERTECPET, S.A.
SERVICE KING MFG.
SERVOMEX
SGS NORTH AMERICA, INC.
SGV INTERNATIONAL, LLC
SHAWCOR - INSPECTION SERVICES
SHELL OIL COMPANY
SHIN NIHON KENTEI KYOKAI
SHM INDUSTRIES, CO.
SICK INC.
SIEMENS
SIVALLS, INC.
SK LUBRICANTS AMERICAS
SLR INTERNATIONAL CORPORATION
SMART PIPE COMPANY, INC.
SMITH & BURGESS LLC.
SMITH TANK & STEEL, INC.
SOUTH COAST PRODUCTS, INC.
SOUTHERN PROCUREMENT SERVICES, INC.
SOUTHERN VALVE SERVICES
SOUTHWESTERN ENERGY COMPANY
SPACE SCIENCE SERVICES, INC.
SPL, INC.
SRC ENERGY INC.
S-TANK ENGINEERING CO. LTD
STANTEC
STANTECH
STATIFLO CORP
STRESS ENGINEERING SERVICES, INC.
STUPP CORPORATION
SUBSEA SOLUTIONS
SULZER PUMPS, INC.
SUPERIOR LAND DESIGNS, LLC
SWI VALVE CORPORATION
SWIFT FUELS, LLC
SYNCRUDE CANADA LTD.
T
T.D. WILLIAMSON, INC.
TALLGRASS PONY EXPRESS PIPELINE, LLC
TAMPA TANK, INC.
TANCO ENGINEERING, INC.
TANK BUILDERS, INC.
TAUBER OIL COMPANY
TEADIT NORTH AMERICA
TEAM, INC.
TECHCORR USA LLC
TECHNICAL OIL TOOLS, LLC
TECHNIPFMC
TEJAS TUBULAR PRODUCTS, INC.
TELLURIAN, INC.
TENARIS
TERRACON CONSULTANTS, INC.
TETRA TECH, INC.
TEXAS PIPE WORKS, INC.
T.F. WARREN GROUP
THERMO NITON ANALYZERS LLC
THORPE SPECIALTY SERVICES CORPORATION
TIDEWATER INC.
TIDY STEEL-FAB LTD.
T.I.E.C., INC.
TORY TECHNOLOGIES INC.
TOTAL E&P USA, INC.
TRANSCANADA PIPELINES
TRANSOCEAN
TRANSPORTATION & INDUSTRIAL SERVICES, INC.
TRINITY MECHANICAL SERVICES LLC
TRINITY INDUSTRIES LEASING COMPANY
TRISTAR TERMINALS GUAM, INC.
TUBACEX
TUBULAR SYNERGY GROUP, LP
TUCKER ENERGY SERVICES, INC.
TULSA INSPECTION RESOURCES
TURNER SPECIALTY SERVICES
U
UDELHOVEN OILFIELD SYSTEMS SERVICES, INC.
UNION TANK CAR COMPANY
UNITED ELECTRIC CONTROLS
UNIVERSALPEGASUS INTERNATIONAL
UNIVERSAL LUBRICANTS FACTORY (ZINOL) L.L.C.
UOP, LLC
UPSTREAM SAFETY AND RISK MANAGEMENT, LLC
US BENTONITE PROCESSING, INC.
USG CORPORATION
U.S. STEEL TUBULAR PRODUCTS, INC.
U.S. TSUBAKI, INC.
V
VALI COOPER INTERNATIONAL, LLC
VALLEY FORGE & BOLT MANUFACTURING CO.
VALLOUREC USA CORPORATION
VALVEWORKS USA
VALVOLINE LLC
VALVTECHNOLOGIES
VAL-MATIC VALVE AND MANUFACTURING CORPORATION
VAREC, INC.
VEGA AMERICAS, INC.
VENTURE GLOBAL LNG
VERICHEK TECHNICAL SERVICES, INC.
VERIFORCE, LLC
VERISTIC MANUFACTURING
VERSA INTEGRITY GROUP
VESSEL BLENDERS LLC
V-FAB LLC
VICTAULIC
VISTA PRECISION SOLUTIONS, INC.
VOLUMETRICS, INC.
W
W & T OFFSHORE, INC.
W.S. ATKINS INC.
WALZEL TECHNICAL SERVICES
WATCO COMPANIES LLC
WAVECREST INC.
WEATHERFORD INTERNATIONAL LTD.
WEBCO INDUSTRIES, INC.
WEG ELECTRIC CORP.
WELDED TUBE OF CANADA
WELKER, INC.
WESTERMANN BOLT & GASKET CO.
WESTON SOLUTIONS, INC.
WESTPORT TRADING EUROPE LIMITED
WESTPOWER EQUIPMENT LTD.
WICHITA CLUTCH, INC.
WIKA INSTRUMENT LP, USA
WILD WELL CONTROL
WILLIAMS
WILLIAM E. WILLIAMS VALVE CORPORATION
W.L. WALKER COMPANY, INC.
WM. POWELL COMPANY
WOODWARD, INC.
WOOLSLAYER COMPANIES, INC.
WORLDWIDE OILFIELD MACHINE
WORTHINGTON INDUSTRIES
WPX ENERGY, INC.
WSB & ASSOCIATES
WSP USA
X
XANOR DE MEXICO, S.A. DE C.V. (XANIK VALVES)
Y
Z
ZEECO, INC.
