M-I DRILLING FLUIDS L.L.C.

EARTH-1

petroleum industry chemicals, namely a water based drilling fluid for use in the oil and gas well drilling industry;

FEDERAL KWIK-FOAM

water well drilling fluids product - primarily used in a stiff foam system or in a continuous foam system;

FLO-PRO

petroleum industry chemicals, namely a water based drill-in fluid for use in the oil and gas well drilling industry, primarily for drilling horizontal and high-angle wells;

FLO-VIS

petroleum industry chemicals, namely a rheology additive for use in the oil and gas well drilling industry;

K-17

LIGNITE USED AS A COMPONENT OF A FLUID DRILLING SYSTEM FOR USE IN THE OIL WELL DRILLING INDUSTRY;

KLA-CURE

petroleum industry chemicals, namely a hydration suppressant additive for drilling fluids for use in the oil and gas well drilling industry;

KWIK-BEN

water well drilling fluids additive used for plugging drilled holes and as a sealant;

KWIK-DRIL

water well drilling fluids product - primarily used for mud stability, hole cleaning, lowering fluid loss, and preventing disintegration of clays and shales;

KWIK-GROUT

water well drilling fluids additive used for plugging drilled holes and as a sealant;

M-I

M-ONE;OIL WELL DRILLING AND TESTING SERVICES;

M-I BAR

MI BAR;ADDITIVES FOR DRILLING FLUIDS FOR USE IN THE OIL WELL DRILLING INDUSTRY;

M-I DRILLING FLUIDS

IN THE STATEMENT, COLUMN 2, LINE 4, CO. IS DELETED, AND THE DRAWING IS AMENDED TO APPEAR AS FOLLOWS: M-I DRILLING FLUIDS;M-ONE DRILLING FLUIDS CO.;DRILLING FLUIDS;OIL WELL DRILLING AND TESTING SERVICES;

MI DRILLING FLUIDS

oil well drilling services;DRILLING FLUIDS;

MSDISK

computer software which displays material safety data sheets for communication of hazards of chemicals and protective measures primarily used by employees and customers in the oil and gas industry;

MUD D-GASSER

DEGASSER;MECHANICAL MUD TREATERS FOR OIL FIELD USE;

NOVADRIL

petroleum industry chemicals, namely a synthetic liquid based drilling fluid for use in the oil and gas well drilling industry;

NOVALITE

NOVA LIGHT;petroleum industry chemicals, namely a synthetic liquid based drilling fluid for use in the oil and gas well drilling industry;

POLY-KWIK

water well drilling fluids additive used to provide viscosity and shale stabilization;

POLYSTAR

petroleum industry chemicals for use in the oil and gas well drilling industry, namely, high temperature, water based drilling mud;

SALINEX

SALINE EXTRACT;LIQUID CHEMICAL EMULSIFIER FOR USE IN DRILLING FLUIDS CONTAINING SALT AND ACTIVE CALCIUM AND MAGNESIUM COMPOUNDS;

SG-SMART

petroleum industry equipment; namely, rig instrumentation equipment which monitors the mechanics of the drilling fluids and which controls the fluids processing (solids control) equipment and the pressure control equipment;

SWACO GEOLOGRAPH

material treatment services, namely environmental liquid-solid separation services, environmental enhanced solidification services, water treatment services and environmental bio-remediation services, namely treatment of organic contaminations using hydrocarbon-adapted microbes;construction and repair services, namely soil washing services; and petroleum industry services, namely installation services and maintenance services to be done for others with respect to fluids processing (solids control) equipment, rig instrumentation equipment and pressure control equipment;environmental services, namely environmental laboratory services, and environmental site assessment services;

VERSA SWA

ADDITIVES FOR DRILLING FLUIDS, SPECIFICALLY, SURFACE ACTIVE AGENTS, FOR USE IN THE OIL WELL DRILLING INDUSTRY;

VERSACLEAN

VERSA CLEAN;OIL MUD SYSTEM WHICH USES EMULSIFIERS, WETTING AGENTS, GELLING AGENTS AND FLUID LOSS CONTROL ADDITIVES WITH VERSA NAMES, AND UTILIZES MINERAL OIL AS THE EXTERNAL PHASE;

VERSACOAT

VERSA COAT;DRILLING FLUID ADDITIVES, SPECIFICALLY, SURFACTANTS, FOR USE IN THE OIL WELL DRILLING INDUSTRY;

VERSAPLUS

petroleum industry chemicals for use in the oil and gas well drilling industry, namely, oil based drilling mud;

VERSATHIN

VERSA THIN;ADDITIVES FOR DRILLING FLUIDS, SPECIFICALLY, SURFACTANTS FOR USE IN THE OIL WELL DRILLING INDUSTRY;

VISUAL HYDRAULICS

computer software which displays real time or quasi-real time predictions of drilling fluids hydraulics;HYDRAULICS;

VISUAL RHEOLOGY

computer software which displays real time or quasi-real time predictions of drilling fluids rheology;RHEOLOGY;