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API Member Companies

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.

A  B C  D  E  F G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

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A

ABB/TOTALFLOW

ABS AMERICAS

ACCURATE MEASUREMENT CONTROLS, INC.

ACI SERVICES

ACUREN

ADVANCED FLUID  CONTAINMENT, LLC

ADVANCE VALVES

ADVANCED INDUSTRIAL SERVICES, INC.

AEC ENGINEERING

AECOM ENVIRONMENT GROUP

ALCOA OIL AND GAS

ALL TECH INSPECTION

ALLERION OILFIELD SERVICES, INC.

ALLPOINTS OIL SERVICES, LLC

ALLSTATE POWER-VAC

ALYESKA PIPELINE SERVICE COMPANY

AMERICAN BLOCK CO

AMERAPEX CORPORATION

AMERICAN INNOVATIONS

AMERICAN INSPECTION SERVICES, INC.

AMERICAN MARINE SERVICES GROUP

AMERICAN SHALE OIL, LLC

AMERICAN PETROLEUM TANKERS, LLC

AMERICAN PROTECTORS INC

AMERIDRIVES INTERNATIONAL

AMSPEC SERVICES LLC

AMYRIS INC.

ANADARKO PETROLEUM CORPORATION

ANTEA GROUP

ANTON PAAR USA

AOI INTERNATIONAL, INC.

APACHE CORPORATION

APAVE INTERNATIONAL

APPLIED TECHNICAL SERVICES, INC.

APPLUS VELOSI

APPLUSRTD

AQUILEX CORPORATION

ARCELOR MITTAL USA

ARGUS CONSULTING

ARIEL CORPORATION

ARMCO

ARRAY HOLDINGS 

ASK INDUSTRIES, INC.

ARSEAL TECHNOLOGIES LLC

ARTEK ENGINEERING, LLC

ASHLAND, INC. 

ATKINS, INC.

ATCO EMISSIONS MANAGEMENT, INC.

ATHENS GROUP

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B

BAKER ENGINEERING & RISK CONSULTANTS, INC.

BAKER HUGHES, INC.

BALTIC CONTROL LTD. 

BASE LINE DATA, INC.

BASSLER ENERGY SERVICES, INC.

BASTION TECHNOLOGIES, INC.

BAYER TECHNOLOGY SERVICES AMERICAS

BECHTEL CORPORATION

BELL TECHNOLOGIES, LLC

BELLE FOURCHE PIPELINE

BENCH TREE GROUP

BENOIT PREMIUM THREADING, LLC 

BERIC-DAVIS COMPANIES INTERNATIONAL LTD.


BESTOLIFE CORPORATION

BHL INTERNATIONAL, INC.


BHP BILLITON

BIG 6 DRILLING

BLACK GOLD PUMP & SUPPLY

BLACKMER

BLADESTONE INTERNATIONAL


BLESS OILFIELD SERVICES, INC.

BLUE OCEAN TECHNOLOGIES LLC

BLUEKNIGHT ENERGY PARTNERS LLC

BOUCHARD TRANSPORTATION CO., INC.


BOWEN INDUSTRIAL CONTRACTORS, INC.

BP AMERICA INC.

BRODIE INTERNATIONAL

BS&B SAFETY SYSTEMS, L.L.C.

BUCKEYE PIPELINE

BUREAU VERITAS NORTH AMERICA, INC.

BURCKHARDT COMPRESSION (US) INC.

BUREAU VERITAS ECUADOR C.A.
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C

CAN USA, INC.

C&C INDUSTRIES, INC.

C & J ENERGY SERVICES, INC. 

C &W TANK, INC.

CALDWELL TANKS, INC.


CAMERON INTERNATIONAL CORP.

CAMIN CARGO CONTROL

CAPE, INC.

CAPITOL ULTRASONICS COMPANY, INC.

CARE ION TECHNOLOGIST SDN. BHD.

CARPENTER TECHNOLOGY CORPORATION

CASHCO INC.

CATSI

CHARTER BROKERAGE

CHATTANOOGA BOILER & TANK, INC.

CHEMSTAR

CHESAPEAKE ENERGY


CHEVRON CORPORATION

CB&I

CLEVELAND INTEGRITY SERVICES, INC. 

C-MAR AMERICA, INC.

COASTAL FLOW MEASUREMENT, INC.

COASTAL GULF & INTERNATIONAL, INC.

COBALT INTERNATIONAL ENERGY, L.P.

COLONIAL PIPELINE COMPANY

COLORADO ENGINEERING EXPERIMENT STATION, INC.

COLUMBUS MCKINNON CORPORATION


CONBRACO INDUSTRIES, INC.

CONOCOPHILLIPS

CONSOL ENERGY, INC.

CONSOLIDATED FABRICATION & CONSTRUCTORS

CONSOLIDATED PRESSURE CONTROL, LLLP

CORROSION CONTROL INC.


CSD ENGINEERS, LLC

CST COVERS

CUMMINGS RITTER CONSULTANTS

CYROSTAR

CYNTECH CORPORATION
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D

DANIEL MEASUREMENT & CONTROL, INC.

DELTA C TECHNOLOGIES, INC.

DET NORSKE CLASSIFICATION (AMERICAS)

DET NORSKE VERITAS (USA) INC.

DEVON ENERGY CORP.

DHV INDUSTRIES, INC. 

DIXON-EAGLE, INC.

DJA INSPECTION SERVICES, INC.

DOKAAN, LLC

DOW CHEMICAL COMPANY

DUOLINE TECHNOLOGIES, L.P.


DYNMCDERMOTT
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E

EAGLE RESEARCH CORPORATION

ELECTRIC MACHINERY COMPANY / CONVERTEAM


ELEMENTIS SPECIALITIES

ELEMENT INTEGRITY GROUP, INC. 

ELLIOTT SERVICES, INC.

EMATS, INC.

ENBRIDGE ENERGY PARTNERS, L.P.

ENDRESS+HAUSER FLOWTEC AG

ENEFIT 

ENERGY EXCHANGER COMPANY

ENERGY & TECHNOLOGY CORP. AND GROUP OF COMPANIES

ENERGY XXI

ENERSYS CORPORATION

ENERVEST LTD. 

ENGINEERING & INSPECTION SERVICES, LLC

ENGINEERING PARTNERS INTERNATIONAL, INC.

ENPRO INDUSTRIES PVT LTD

ENSCO PLC

ENTERPRISE PRODUCT PARTNERS LP

EQUITY ENGINEERING GROUP, INC.

ERM - ENVIRONMENTAL RESOURCES MANAGEMENT

ESRI, INC. 

ENVIRONMENTAL STANDARDS INCORPORATED


EVONIK ROHMAX

EXPLORER PIPELINE COMPANY

EXPRESS ENERGY SERVICES

EXXONMOBIL
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F

FASTENAL COMPANY

FBV, INC.

FEDERAL SERVICES LLC

FISHER TANK COMPANY

FLEXTM, INC.

FLARE IGNITORS PIPELINE & REFINERY, LLC

FLOW MANAGEMENT DEVICES, LLC

FLUOR CORPORATION


FMC TECHNOLOGIES INC.

FOERSTER INSTRUMENTS INC., USA 

FORUM OILFIELD TECHNOLOGIES, INC. DRILLING PRODUCTS


FORUM VALVE SOLUTIONS

FOSS MARITIME COMPANY


FOSTER WHEELER USA CORPORATION

FRAC TECH SERVICES, LLC

FRANDSON SAFETY, INC. 
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G

GARLOCK SEALING TECHNOLOGIES

GAS AND AIR SYSTEMS, INC.


GBR

GEARENCH

GE ENERGY/ BENTLY NEVADA

GE OIL & GAS

GENERAL ELECTRIC INSPECTION SERVICES

GENESIS ENERGY

GEVO

GILBARCO VEEDER-ROOT

GL INDUSTRIAL SERVICES SINGAPORE PTE LTD.

GRINDING & SIZING CO. LLC 

GULF INTERSTATE ENGINEERING COMPANY

GWC VALVE INTERNATIONAL, INC.
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H

HALEY & ALDRICH, INC.

HAMON DELTAK, INC.

HAMWORTHY COMBUSTION

HALLIBURTON COMPANY

HARVEY E. YATES COMPANY (HEYCO)

HERCULES OFFSHORE 

HESS CORPORATION

HI-TECH TESTING SERVICE, INC.

HI-TEMP COATINGS TECHNOLOGY 

HMT, INC.

HOIST AND CRANE SERVICE GROUP

HOLLOWAY HOUSTON, INC.

HOLLY ENERGY PARTNERS, L.P.


HONEYWELL

U.S. HONEYWELL ENRAF AMERICAS INC.

HOUSTON BOLT & GASKET CO.

HOWDEN BURTON CORBLIN COMPRESSOR


H. ROSEN USA, INC.

H SCAN INTERNATIONAL

HUDSON PRODUCTS CORPORATION


HULL & ASSOCIATES, INC.

HUNT CONSILIDATED INC.

HUNTING ENERGY SERVICES

HUNTINGTON TESTING & TECHNOLOGY, INC.

HY-GRADE VALVE, INC. 

HYDAC TECHNOLOGY CORPORATION
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I

ICL CALIBRATION LABORATORIES, INC.

ICO ASIAPACIFIC SINGAPORE PTE. LTD.

IDEMITSU LUBRICANTS AMERICA

IESCO LLC  

IISA PETROL CIA LTDA

INFINEUM

INFOTECH ENTERPRISES AMERICA, INC.

INNOVATIVE ENERGY SERVICES

INSPECTORATE AMERICA CORP.


INTECH PROCESS AUTOMATION

INTEGRATED PROTECTION SERVICES, INC.


INTERNATIONAL DERRICK SERVICES, LLC.

INTERSPEC, LLC

INTERTEK TESTING SERVICES/CALEB BRETT

ioMOSAIC CORPORATION

IRED THERMAL GROUP Ltd.

IRISNDTMatrix Corp.

ITT CORPORATION
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J

J & B PAVELKA, INC. 

JAB ENERGY SOLUTIONS

JAMES MACHINE WORKS, INC.

JD NEUHAUS LP

JET-LUBE, INC.

J. F. AHERN CO.

JFE STEEL AMERICA, INC.

JOHN CRANE INC.

JOHN L. LOWERY & ASSOCIATES, INC.


JSW STEEL USA INC.

JUSTISS OIL COMPANY

J.Z. RUSSELL INDUSTRIES
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K

KAM CONTROLS, INC.

KAMAL ENGINEERING CORPORATION

KAYDON RING & SEAL, INC.

KEYSTONE SHIPPING

KIRBY OFFSHORE MARINE

KIMRAY INC.

KINDER MORGAN ENERGY PARTNERSHIP, L.P.


KINDER VALVES, INC.

KROHNE, INC. 

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L

L & J TECHNOLOGIES

LARSEN & TOUBRO LIMITED


LAURENTIAN STEEL FABRICATORS, INC.

LEE SPECIALTIES, LTD. 

LEECO STEEL, LLC

LIGHTNING ELIMINATORS & CONSULTANTS, INC. 

LIQUID CONTROLS GROUP  

LLOYD'S REGISTER AMERICAS

LLOYD'S REGISTER ENERGY AMERICAS, INC.

LOADMASTER ENGINEERING

LONE STAR INDUCTION, INC. 

LOOP LLC

LUBRIZOL CORPORATION

LUFKIN INDUSTRIES, INC.

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M

M & H ENERGY SERVICES

MADEWELL, LLC

MAERSK DRILLING

MAERSK OIL AMERICA, INC.

MAGELLAN MIDSTREAM PARTNERS

MAGNAFLUX

MAGNETIC ANALYSIS CORPORATION


MANGAN, INC.

MAP OIL TOOLS

MARATHON OIL COMPANY

MARATHON PETROLEUM CORPORATION


MARINE SPILL RESPONSE CORPORATION

MASS TECHNOLOGY CORPORATION

MATHENA, INC. 

MATRIX PDM ENGINEERING

MAVERICK TESTING LABORATORIES, INC.

MCCLATCHY BROS., INC.

MCCROMETER

MECHATRENDS CONTRACTORS CORP.

MERICHEM COMPANY

MERIDIUM, INC.

MESA INDUSTRIES

MESOCOAT, INC.

METCO - MATERIALS EVALUATION & TECHNOLOGY CORP.


METER ENGINEERS, INC.

MICRO MOTION, INC.

MIDCONTINENTAL CHEMICAL COMPANY

MID-STATES SUPPLY COMPANY INC.

MIDWESTERN SERVICES, INC.

MILLER CONSULTING SERVICES

MILWAUKEE VALVE COMPANY

MINGA S.A.

MISTRAS GROUP, INC.

MMI ENGINEERING 

MOGAS INDUSTRIES

MOKVELD VALVES, INC.

MOODY AND ASSOCIATES, INC.

MOODY INTERNATIONAL, INC.

MORAN TOWING CORPORATION

MOSSHOLDER LAND SERVICES, INC. 

MOTT TANK INSPECTION, INC.

MUSE, STANCIL & COMPANY
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N

NATIONAL OILWELL VARCO

NATIONAL PUMP COMPANY, LLC.

NATIONAL STEEL ERECTION, INC.

NAUTILUS INTERNATIONAL, LLC

NAVARIK CORP.

NAVASOTA OILFIELD SERVICES, INC.

NDT SYSTEMS & SERVICES (AMERICA), INC.

NEUMAN & ESSER USA, INC.

NEWDELL COMPANY

NEWMARKET CORPORATION

NEWPARK RESOURCES, INC.

NIAGARA BLOWER HEAT TRANSFER SOLUTIONS

NISER INTERNATIONAL

NMC GLOBAL CORP.

NOBLE CORPORATION

NORRIS PRODUCTION SOLUTIONS

NORTHERN TIER ENERGY 

NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION

NORTH WEST REDWATER PARTNERSHIP


NUSTAR ENERGY L.P.
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O

OCCIDENTAL OIL & GAS CORPORATION

OCEAN SHIPHOLDINGS, INC.

OCEANEERING INTERNATIONAL, INC.

OFI TESTING EQUIPMENT, INC. (OFITE)

OIL INSPECTIONS (USA), INC.

OK LEASING LATIN AMERICA, INC.

OMNI FLOW COMPUTERS, INC.

ON-SITE SAFETY, INC. 

ONEOK

ORBITAL ENGINEERING, INC.

ORION DRILLING COMPANY, LLC

OSG AMERICA

OWENSBY & KRITIKOS, INC.
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P

PACIFIC DRILLING SERVICES, INC.

PACIFIC PETROLEUM CALIFORNIA, INC.

PALA-INTERSTATE, LLC

PARAGON INDUSTRIES, INC.

PARKER DRILLING COMPANY

PARKER HANNIFIN CORPORATION

PARKER PGI

PASO ROBLES TANK, INC.

PATTERSON TUBULAR SERVICES

PB ENERGY STORAGE SERVICES, INC.

PCA ENGINEERING, INC.


PEAK COMPLETION TECHNOLOGIES, INC.

PEERLESS DYNAMICS

PENTAIR VALVES AND CONTROLS 

PENNSYLVANIA GENERAL ENERGY, LLC

PERMIAN PRODUCTION EQUIPMENT, INC.

PETROBRAS AMERICA, INC.

PETROCHEM INSPECTION SERVICES

PETROJET

PETROSPECT, INC.

PETRUSTECH OIL & GAS, LLC

PHILADELPHIA GEAR CORPORATION

PHILADELPHIA MIXING SOLUTIONS

PHILLIPS 66

PHOENIX INDUSTRIAL LTD.


PINNACLE AIS

PINNACLE OIL

PLAINS ALL AMERICAN PIPELINE, L.P.

PLS CONSTRUCTION, INC. 

PMC INDUSTRIES

POCAR SEAL

POND & COMPANY

PORTLAND PIPE LINE CORPORATION

POTAMAC ENVIRONMENTAL, INC.

PPL INTERSTATE ENERGY COMPANY

PPM CONSULTANTS, INC.

PRECISION DRILLING OILFIELD SERVICES CORPORATION

PROTEC - PROFESSIONAL TECHNICAL SERVICE

PROJECT CONSULTING SERVICES, INC.

PROSERV

PROVENANCE CONSULTING

PROTECTOSEAL COMPANY
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Q

QUALITY CONTROL COMPANY

QUALITY CUSTOMS INSPECTIONS & LABORATORIES

QUEST INTEGRITY USA, LLC

QUORUM BUSINESS SOLUTIONS, INC.
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R

RAINBOW MECHANICAL & ELECTRICAL WORKS LLC

RCP - REGULATORY COMPLIANCE PARTNERS

RECON ENGINEERING AND CONSTRUCTION

REINAUER TRANSPORTATION COMPANIES

REPSOL E&P USA INC.

RICCARDELLI CONSULTING SERVICES, INC. 

ROBERT J. JENKINS AND CO.

ROBINSON INTERNATIONAL (USA), INC.

ROCKFORD CORPORATION

ROCKY MOUNTAIN FABRICATION

RODDEY ENGINEERING SERVICES

ROTARY COMPONENTS INTERNATIONAL, INC.

ROWAN COMPANIES, INC.

ROXTEC, INC

R.T. VANDERBILT COMPANY, INC.

RUHRPUMPEN, INC.
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S

SAF-T COMPLIANCE INTERNATIONAL 

SAFETY-KLEEN SYSTEMS, INC.

SANDBAGS, LLC

SAUDI REFINING, INC.

SAYBOLT INC.

SBM-ATLANTIA

SCAN SYSTEMS CORP.

SCENIC PRECISE ELEMENT, INC.


SCHLUMBERGER LIMITED

SCHNEIDER ELECTRIC

SCHRAMM, INC.

SEABULK INTERNATIONAL INC.


SEARIVER MARITIME, INC.

SEMGROUP CORPORATION

SENTRY EQUIPMENT CORP.

SERVICE KING MFG.

SET INDUSTRIAL SERVICES, INC.

SGS NORTH AMERICA, INC.

SHARED SYSTEMS TECHNOLOGY

SHELL OIL COMPANY

SHM INDUSTRIES, CO.

SICK MAIHAK, INC.

SIEMENS ENERGY - OIL & GAS CONSULTING SOLUTIONS

SIEMENS WATER TECHNOLOGIES CORP.

SIVALLS, INC.

SK LUBRICANTS AMERICAS

SKYSTONE ENGINEERING


SMITH & BURGESS LLC.

SMITH TANK & STEEL, INC.

SOLON MANUFACTURING COMPANY

SOUTH COAST PRODUCTS, INC.

SOUTHERN VALVE SERVICES

SOUTHWEST GEOSCIENCE

SPACE SCIENCE SERVICES, INC.

SPL, INC.

S-TANK ENGINEERING CO. LTD

STANTEC

STATOIL

STRESS ENGINEERING SERVICES, INC.

STUPP CORPORATION

SULZER PUMPS, INC.

SUNBELT EXPRESS SERVICES, INC. 

SUNOCO LOGISTICS

SWI VALVE CORPORATION
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T

T.D. WILLIAMSON, INC.

T.H. HILL ASSOCIATES, INC.

TALISMAN ENERGY INC.

TANCO ENGINEERING, INC.

TANK BUILDERS, INC.

TANK INDUSTRY CONSULTANTS, INC.

TAUBER OIL COMPANY

TEADIT NORTH AMERICA

TECHNIP USA

TEAM, INC.

TEEKAY SHIPPING

TEEMCO, LLC

TECHCORR USA LLC


TEJAS TUBULAR PRODUCTS, INC.

TENARIS

TERRACON CONSULTANTS, INC. 

TESTEX INSPECTION LLC

TETRA TECH, INC.

TEXAS PIPE WORKS, INC.

T.F. WARREN GROUP 

THE NEW ERA GROUP

THERMO NITON ANALYZERS LLC

THIELSCH ENGINEERING

TIDEWATER INC.

TIDY STEEL-FAB LTD.

TITAN CONTRACTING & LEASING COMPANY, INC.

TOTAL E&P USA, INC.

TOTAL SAFETY

TRANSCANADA PIPELINES

TRANSOCEAN

TRANSPORTATION & INDUSTRIAL SERVICES, INC.

TRISTAR TERMINALS GUAM, INC.

TRUE OIL CO.


TUBULAR SYNERGY GROUP, LP

TURNER SPECIALTY SERVICES


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U

UDELHOVEN OILFIELD SYSTEMS SERVICES, INC.

UNION TANK CAR COMPANY

UNITED SPIRAL PIPE

UNIVERSAL LUBRICANTS FACTORY (ZINOL) L.L.C.

UOP, LLC

US BENTONITE PROCESSING, INC.


U.S. STEEL TUBULAR PRODUCTS, INC.


U.S. TSUBAKI, INC.
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V

VALLEY INDUSTRIAL X-RAY AND INSPECTION SERVICES, INC.


VALVTECHNOLOGIES

VAREC, INC.


VERIFORCE, LLC

VICTAULIC

VILTER MANUFACTURING, LLC

VISTA LEAK DETECTION
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W

W & T OFFSHORE, INC.

WALZEL TECHNICAL SERVICES

WAVECREST OFFSHORE SOLUTIONS INC.

WEATHERFORD INTERNATIONAL LTD.

WEG ELECTRIC CORP.


WELKER, INC.

WELLBORE SPECIALITIES LLC

WESTERN ENERGY SERVICES CORPORATION

WESTON SOLUTIONS, INC.

WILD WELL CONTROL

WILLIAMS

WILLIAM E. WILLIAMS VALVE CORPORATION

W.L. WALKER COMPANY, INC.

WM. POWELL COMPANY


WOODWARD GOVERNOR COMPANY

WOOLSLAYER COMPANIES, INC.

WPX ENERGY, INC.

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X

XXTREME GROUP LLC
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Y
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Z

ZEECO, INC.