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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

EXTENDED YEAR SET - Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2013 Utility Patent Grants,
By Calendar Year of Grant
With Patent Counts Based on Primary Patent Classification

- Explanation of Data -

Rank Ordered Listing of Organizations Receiving 5 or More Utility Patents During the Period
Having Primary Classification In

Class 507, Earth Boring, Well Treating, and Oil Field Chemistry

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent ownership is determined by the first-named assignee listed on a patent )

The following table displays first-named assignees and counts of their associated patents, as distributed by the year of patent grant.
First-Named Assignee 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Total
HALLIBURTON ENERGY SERVICES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 5 6 3 12 11 14 16 16 16 47 51 46 29 52 330
SCHLUMBERGER TECHNOLOGY CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 5 4 8 5 12 11 4 8 10 12 10 26 24 12 10 164
~INDIVIDUALLY OWNED PATENT 1 3 1 2 2 1 1 1 1 3 0 1 1 0 4 2 8 4 4 3 5 2 2 5 2 1 1 1 3 7 5 3 1 5 6 11 8 2 1 1 9 7 4 3 2 140
BAKER HUGHES INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 4 0 0 0 1 5 1 3 3 5 2 4 2 5 6 5 4 8 16 26 14 13 131
HALLIBURTON CO. 0 0 2 1 2 1 2 0 3 2 3 7 4 11 7 14 17 5 4 2 2 2 4 1 2 3 5 3 4 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 116
PHILLIPS PETROLEUM COMPANY 3 2 3 2 0 1 2 3 3 6 4 5 5 1 2 10 8 3 4 3 1 0 3 2 1 0 6 7 2 3 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 98
TEXACO INC. 0 7 5 8 2 1 5 6 6 6 3 11 4 5 2 7 4 2 1 0 3 2 0 1 0 1 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 96
M-I L.L.C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 2 0 2 10 3 6 10 5 10 10 9 10 7 89
DOW CHEMICAL COMPANY 2 1 0 3 4 2 4 8 3 2 2 1 5 4 2 6 6 0 1 7 3 4 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 73
UNION OIL COMPANY OF CALIFORNIA 0 0 1 3 5 0 2 6 8 6 0 2 0 0 0 1 0 0 0 2 1 1 4 1 4 0 1 1 4 1 1 5 1 0 0 0 0 0 0 0 0 0 0 0 0 61
SHELL OIL COMPANY 0 2 0 2 1 2 2 6 1 1 0 1 2 1 0 1 1 3 1 1 3 3 4 0 4 0 1 0 3 1 0 1 0 0 0 0 0 0 2 1 1 3 0 0 1 56
MOBIL OIL CORP. 0 0 0 0 0 0 0 0 0 6 3 2 1 6 2 9 6 4 1 2 0 0 5 2 0 2 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 55
BJ SERVICES CO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 1 0 1 2 0 5 3 2 3 3 2 5 3 1 9 4 0 0 0 47
EXXON RESEARCH + ENGINEERING CO. 1 0 1 2 0 1 1 0 0 1 0 0 1 1 1 14 3 3 1 0 0 1 2 5 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 44
NALCO CHEMICAL COMPANY 4 1 4 0 0 0 1 1 1 0 1 0 0 0 0 0 3 0 1 3 1 0 5 4 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 34
MARATHON OIL COMPANY 0 1 0 1 1 2 3 5 3 0 2 1 0 0 3 0 0 0 2 1 0 1 1 0 0 0 0 0 1 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 31
NL INDUSTRIES INC. 0 1 0 2 1 0 0 0 1 0 0 0 4 2 4 6 2 4 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 31
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN (HENKEL KGAA) 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 3 1 2 1 4 5 3 1 2 0 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 28
INSTITUT FRANCAIS DU PETROLE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 1 1 1 0 0 0 3 3 2 1 2 0 1 2 0 0 4 0 0 2 0 0 1 27
PETROLITE CORPORATION 3 2 1 1 2 0 0 0 1 0 1 0 0 7 1 0 3 1 0 1 0 0 0 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 27
CLEARWATER INTERNATIONAL LLC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2 1 2 2 7 3 6 25
E. I. DU PONT DE NEMOURS AND COMPANY 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 0 2 1 0 2 0 2 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 11 0 2 1 25
W. R. GRACE & CO.-CONN. 0 0 0 0 0 0 0 0 0 0 0 1 2 6 2 9 1 2 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 25
TEXAS UNITED CHEMICAL COMPANY, LLC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 4 5 1 1 1 1 1 1 1 1 2 0 0 0 1 0 0 23
ATLANTIC RICHFIELD COMPANY 0 0 0 0 1 4 0 1 0 0 0 0 0 0 2 0 0 0 1 0 0 0 1 1 0 2 0 0 0 1 4 2 1 0 1 0 0 0 0 0 0 0 0 0 0 22
NALCO COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 0 9 5 4 21
LUBRIZOL CORPORATION 0 0 0 1 0 0 0 0 1 0 0 1 1 0 0 0 0 1 0 0 0 0 1 0 1 2 0 0 5 4 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 20
EXXON PRODUCTION RESEARCH COMPANY 0 0 0 0 2 1 0 0 0 0 0 1 1 2 1 1 4 1 0 0 0 0 0 0 3 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19
INTEVEP, S.A. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 0 0 0 1 2 0 0 0 0 1 3 4 3 0 19
MILCHEM INCORPORATED 1 1 0 1 6 1 2 0 0 0 0 1 2 0 0 0 1 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19
TEXACO DEVELOPMENT CORPORATION 0 0 0 0 0 0 0 0 0 0 0 9 3 4 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19
AMOCO CORPORATION 0 0 0 0 0 0 0 0 0 2 2 2 5 2 0 0 1 0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17
SUN DRILLING PRODUCTS CORP. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 3 1 2 5 17
CALGON CORPORATION 1 1 2 0 0 0 1 5 1 1 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 16
DOWELL SCHLUMBERGER INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 1 3 0 0 0 1 0 0 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16
DRESSER INDUSTRIES, INC. 0 1 0 2 0 1 1 1 1 0 0 1 0 1 0 0 1 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 15
CHEVRON RESEARCH & TECHNOLOGY CO. 0 0 1 1 0 1 0 2 1 0 0 0 1 0 0 0 0 0 0 0 0 1 2 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
CONOCO, INC. 1 0 0 0 0 1 2 2 1 0 0 1 1 0 0 1 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
BP EXPLORATION OPERATING COMPANY LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 1 1 0 0 3 0 0 2 1 0 12
EXXON CHEMICALS PATENTS INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 1 2 2 2 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
VENTURE INNOVATIONS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 3 1 0 0 0 0 0 0 2 0 3 1 1 0 0 0 0 0 0 0 0 0 0 12
EXXONMOBIL UPSTREAM RESEARCH COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2 1 0 1 3 2 11
HERCULES INCORPORATED 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 0 1 0 11
WESTERN COMPANY OF NORTH AMERICA 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 0 3 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
AIR PRODUCTS AND CHEMICALS, INC. 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 10
3M INNOVATIVE PROPERTIES COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 0 0 1 1 0 2 1 9
AMOCO PRODUCTION COMPANY 0 0 0 1 3 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
BASF SE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 3 3 1 9
ENIRICERCHE S.P.A. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
GEORGIA-PACIFIC CORPORATION 1 2 0 2 0 0 0 1 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
STANDARD OIL COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 2 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
VENTURE CHEMICALS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 9
ALPINE MUD PRODUCTS CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 4 0 0 0 0 0 0 0 8
DORF KETAL SPECIALITY CATALYSTS, LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 1 8
ELEMENTIS SPECIALTIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 3 1 1 8
GREAT LAKES CHEMICAL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 3 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 8
MAGNA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 1 6 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
PAN AMERICAN PETROLEUM CORPORATION 2 0 5 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
PFIZER INC. 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 0 1 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
STANDARD OIL CORPORATION (INDIANA) 0 0 0 1 0 0 0 1 0 2 0 0 0 0 0 2 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
UNIVERSITY OF TEXAS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 3 1 8
UOP 0 1 1 0 1 0 0 0 0 0 0 0 0 1 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
AKZO NOBEL NV 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 0 0 0 0 0 3 0 7
AMERICAN COLLOID COMPANY 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 1 1 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
BAROID TECHNOLOGY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
CHEVRON PHILLIPS CHEMICAL COMPANY LP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 2 0 0 1 0 0 1 7
CLARIANT GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2 2 0 1 0 0 0 0 0 0 0 0 7
CLEARWATER, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 7
DIAMOND SHAMROCK CHEMICALS CO. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 1 0 0 0 0 0 0 0 0 0 7
FMC CORPORATION 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7
HOECHST AKTIENGESELLSCHAFT 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 3 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
MERCK + CO., INC. 0 0 0 0 0 0 0 2 1 0 0 0 0 1 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
SAUDI ARABIAN OIL COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2 1 1 0 2 7
UNION CARBIDE CORPORATION 0 0 0 0 0 0 1 0 0 0 0 1 1 0 0 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
ZIRCONIUM TECHNOLOGY CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
BENCHMARK RESEARCH AND TECHNOLOGY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2 0 0 3 0 0 0 0 0 0 0 0 0 6
CHEMICAL ADDITIVES COMPANY 0 0 0 0 0 0 1 2 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
CIBA-GEIGY CORPORATION 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
DOWELL, A DIVISION OF SCHLUMBERGER TECHNOLOGY CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
EMERY OLEOCHEMICALS GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 4 0 6
GAF CHEMICALS CORPORATION 0 0 0 1 1 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
NALCO/EXXON ENERGY CHEMICALS, L.P 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 6
OIL BASE, INC. 0 0 1 2 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
ALLIED COLLOIDS LIMITED 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 2 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
BASF AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 5
BOTTOM LINE INDUSTRIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 5
BP CHEMICALS LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 5
BP CORPORATION NORTH AMERICA INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 3 1 0 5
BRINE -ADD FLUIDS LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 4 0 0 5
CHEVRON ORONITE COMPANY LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 1 1 0 5
CONOCOPHILLIPS COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2 0 0 0 1 5
GRAIN PROCESSING CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 5
INTEGRITY INDUSTRIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 5
M-I DRILLING FLUIDS L.L.C. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
MASI TECHNOLOGIES, L.L.C. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 1 1 0 0 0 0 0 0 5
MI DRILLING FLUIDS COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
MONSANTO COMPANY, INC. 0 0 0 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 5
NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 5
NITTO CHEMICAL INDUSTRY CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
OIL CHEM TECHNOLOGIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 2 0 1 5
RHODIA INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 5
STEPAN COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 0 0 5
THE BRITISH PETROLEUM COMPANY P.L.C. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
TURBO-CHEM INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 5



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