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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Branch (PTMB)

Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2005 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 166, Wells (shafts or deep borings in the earth, e.g., for oil and gas)

( 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 Total
~Individually Owned Patent 71 37 53 50 55 42 43 49 61 37 25 53 52 39 43 77 58 56 88 52 57 64 70 77 71 80 67 58 52 73 54 81 126 70 78 69 50 2238
HALLIBURTON CO. 10 15 8 5 10 25 11 11 12 11 6 5 19 10 21 27 21 36 58 25 27 29 27 28 40 98 48 52 11 14 0 0 0 0 0 0 0 720
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 17 52 84 97 97 85 81 105 93 711
SCHLUMBERGER TECHNOLOGY CORPORATION 29 21 20 22 10 8 8 4 3 5 1 2 4 3 1 9 5 7 6 4 5 12 8 6 6 10 5 3 4 11 26 30 64 65 62 79 55 623
SHELL OIL COMPANY 32 48 25 31 27 17 13 8 15 8 5 5 4 2 8 5 6 19 9 13 9 3 12 12 7 42 21 11 2 0 3 16 13 18 24 66 44 603
TEXACO INC. 9 17 18 9 18 50 42 24 19 41 31 43 27 7 6 20 22 14 25 15 15 9 13 10 12 11 10 6 4 6 7 13 6 1 0 0 1 581
BAKER HUGHES INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 17 34 12 16 21 29 31 18 26 43 27 37 56 38 46 47 48 548
MOBIL OIL CORP. 34 22 17 11 7 8 14 7 13 11 2 10 2 2 20 30 21 29 27 28 35 39 21 23 30 28 22 14 4 2 5 2 3 0 1 0 0 544
OTIS ENGINEERING CORPORATION 10 5 8 14 5 7 9 10 13 15 11 7 21 13 25 26 16 12 19 16 25 18 17 25 21 1 0 0 0 0 0 0 0 0 0 0 0 369
MARATHON OIL COMPANY 17 23 21 31 20 17 9 5 3 2 1 1 5 2 3 12 10 5 9 12 10 6 13 9 1 10 10 2 5 7 2 4 2 4 2 3 0 298
WEATHERFORD/LAMB, INC. 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 2 3 16 9 24 18 34 46 74 53 284
ATLANTIC RICHFIELD COMPANY 2 5 7 5 7 6 6 11 5 1 2 0 0 0 8 9 7 11 23 13 9 10 11 6 12 22 19 12 6 4 8 16 8 0 0 0 0 271
EXXON PRODUCTION RESEARCH COMPANY 24 18 24 16 19 12 12 14 12 14 8 7 7 2 7 10 7 7 10 6 3 1 3 2 1 4 1 1 0 1 4 1 0 0 0 0 0 258
PHILLIPS PETROLEUM COMPANY 26 19 26 8 14 7 8 11 10 17 1 6 10 3 2 9 12 11 5 2 3 3 2 3 2 7 1 2 1 2 2 2 3 3 1 0 0 244
BAKER INTERNATIONAL CORP. 9 2 5 5 1 11 10 3 8 8 5 9 16 11 22 40 21 15 13 7 6 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 228
CHEVRON RESEARCH & TECHNOLOGY CO. 9 4 13 4 3 6 4 6 7 9 0 3 2 0 8 8 6 8 4 4 13 12 17 10 10 5 0 0 0 0 0 0 0 0 0 0 0 175
UNION OIL COMPANY OF CALIFORNIA 4 10 5 10 7 5 10 2 10 11 5 5 2 2 4 6 6 4 7 4 4 3 7 13 9 6 2 0 1 2 2 1 2 1 1 0 0 173
CONOCO, INC. 5 3 3 2 6 8 10 6 9 4 2 6 6 1 6 3 4 4 5 12 10 6 10 4 9 3 5 1 2 1 0 1 1 3 0 0 0 161
DRESSER INDUSTRIES, INC. 5 5 9 3 12 12 11 11 9 4 5 7 2 3 3 5 3 2 8 8 5 1 1 6 2 0 2 1 0 0 3 3 3 0 0 0 0 154
ABB VETCOGRAY INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 14 15 6 2 9 9 10 11 11 11 11 12 2 132
CAMCO INCORPORATED 5 0 3 3 8 11 3 2 1 3 6 4 5 2 2 5 12 20 11 9 7 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 125
AMOCO CORPORATION 0 0 0 0 0 0 0 0 4 7 4 8 12 10 5 4 5 5 12 4 4 2 3 4 2 0 10 5 0 5 3 0 0 0 0 0 0 118
DOW CHEMICAL COMPANY 13 10 10 5 13 13 5 3 4 8 7 4 7 3 1 2 4 0 1 2 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 118
INSTITUT FRANCAIS DU PETROLE 0 1 1 0 1 0 1 0 0 2 0 0 3 2 2 4 0 2 6 5 3 12 6 8 11 15 1 2 3 7 3 2 8 0 2 0 0 113
CAMCO INTERNATIONAL INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 7 8 7 7 6 0 3 16 18 25 4 0 0 0 107
HYDRIL COMPANY L.P. 0 2 1 2 9 10 8 5 6 5 0 1 9 3 0 7 7 7 3 0 2 2 0 0 0 1 0 0 1 1 0 2 1 2 2 0 0 99
HUGHES TOOL COMPANY 0 1 0 0 1 1 0 0 0 0 1 0 1 5 7 14 11 18 14 11 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 87
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 1 1 4 0 4 6 3 2 6 5 7 8 5 17 2 71
FMC CORPORATION 3 2 0 1 2 0 0 0 3 2 2 1 1 0 2 1 0 1 1 0 1 1 4 2 3 1 0 1 0 12 6 4 1 9 0 0 0 67
SMITH INTERNATIONAL INC. 0 0 0 0 0 0 0 2 0 1 1 0 0 0 1 1 3 3 0 0 0 0 3 1 0 0 4 0 1 3 4 3 4 5 10 5 7 62
DOWELL SCHLUMBERGER INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 10 6 9 8 5 6 3 7 2 0 0 0 0 0 0 0 0 0 0 57
CITIES SERVICE COMPANY 2 2 13 11 10 5 3 3 2 0 0 1 0 0 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 55
OCCIDENTAL OIL SHALE, INC. 0 0 0 0 0 0 0 0 1 12 12 6 9 1 3 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 46
PAN AMERICAN PETROLEUM CORPORATION 18 9 11 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 0 0 0 0 0 0 0 42
VETCO GRAY INC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 5 7 10 5 1 0 0 0 1 0 1 0 0 0 0 0 0 8 42
CAMERON IRON WORKS, INC. 2 0 1 1 1 1 2 2 2 2 5 4 0 5 2 4 2 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 41
DRIL-QUIP, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 2 1 5 5 0 1 2 0 1 3 4 0 3 10 2 41
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 0 0 1 2 1 2 0 4 4 4 0 1 1 2 5 4 3 0 1 1 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 40
BROWN OIL TOOLS, INC. 4 1 3 2 2 7 2 3 6 5 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 0 38
PETROLEO BRASILEIRO S.A. PETROBRAS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 1 1 1 3 5 4 0 1 1 0 5 2 3 5 0 1 37
FMC 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 0 0 7 15 8 5 35
VETCO, INC. 0 1 3 5 6 2 8 4 1 1 0 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 35
COOPER CAMERON CORPORATION, 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 4 5 4 6 7 3 2 34
STANDARD OIL CORPORATION (INDIANA) 0 0 0 0 0 0 2 5 0 0 0 1 0 0 1 14 6 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 32
AVA INTERNATIONAL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 3 5 3 2 4 2 0 0 2 3 1 1 1 0 0 0 0 0 0 0 0 0 31
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 3 5 3 9 7 4 31
AMOCO PRODUCTION COMPANY 0 0 7 6 9 6 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 0 0 0 0 30
ARMCO INC. 0 1 0 0 1 1 0 0 1 0 2 3 9 3 1 6 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 30
GULF RESEARCH AND DEVELOPMENT COMPANY 6 1 2 3 1 2 0 0 2 0 1 1 6 2 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 29
CAMERON IRON WORKS USA, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11 14 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 28
COOPER INDUSTRIES INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 4 5 5 3 0 0 0 0 0 0 0 0 0 0 26
EXXON RESEARCH + ENGINEERING CO. 1 1 0 1 0 0 0 1 0 0 0 0 2 1 1 6 2 2 5 2 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 26
SOCIETE NATIONALE ELF AQUITAINE (PROD.) 0 0 0 0 0 0 0 0 0 4 1 1 1 0 0 1 2 3 1 4 3 0 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 26
SUN OIL COMPANY OF PENNSYLVANIA 2 2 0 3 6 5 4 3 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 26
TEXAS IRON WORKS, INC. 0 1 0 1 0 0 1 2 0 1 0 0 2 0 1 0 0 0 3 2 3 4 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26
WEATHERFORD U.S., INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 2 1 2 1 0 3 5 4 2 1 0 0 0 0 0 0 0 26
ALBERTA OIL SANDS TECHNOLOGY & RESEARCH AUTHORITY 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 1 0 0 1 1 0 6 2 0 1 2 0 0 1 2 0 3 0 0 0 0 23
GEO VANN, INC. 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 6 10 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 23
BYRON JACKSON INC. 6 6 3 0 3 1 2 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 22
DEN NORSKE STATS OLJESELSKAP A.S. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 6 0 1 2 0 2 0 2 0 5 0 2 0 0 22
GETTY OIL COMPANY 2 0 0 0 1 3 6 2 0 0 0 0 1 2 0 3 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
HALLIBURTON SERVICES 0 0 0 0 1 0 0 0 0 0 0 1 1 8 1 0 1 0 1 0 4 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 22
UOP 0 0 1 0 0 0 0 1 0 2 1 0 1 2 4 6 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
GEARHART INDUSTRIES, INC. 0 0 0 1 2 0 3 1 0 4 0 0 0 1 1 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
GRAY TOOL COMPANY 3 2 2 3 4 2 0 0 0 2 0 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 21
NALCO CHEMICAL COMPANY 1 2 1 0 5 1 0 0 1 0 0 0 1 0 0 0 0 0 1 0 2 1 2 2 0 1 0 0 0 0 0 0 0 0 0 0 0 21
THE BRITISH PETROLEUM COMPANY P.L.C. 0 0 2 0 0 0 0 0 1 0 0 1 0 0 1 0 1 0 2 1 2 1 7 2 0 0 0 0 0 0 0 0 0 0 0 0 0 21
CDX GAS, 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 4 4 6 6 20
IN SITU TECHNOLOGY, INC. 0 0 0 0 0 0 1 2 3 7 1 1 0 0 0 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20
INTEVEP, S.A. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 2 1 2 1 0 0 0 0 0 0 1 5 3 0 0 20
TENNECO OIL COMPANY 2 6 5 2 2 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20
WESTERN COMPANY OF NORTH AMERICA 0 0 3 0 0 0 0 1 0 0 0 1 1 0 0 1 0 0 2 1 0 0 3 1 2 1 2 0 1 0 0 0 0 0 0 0 0 20
TIW 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 1 0 1 2 4 3 0 0 1 1 2 3 1 19
TRI-STATE OIL TOOL INDUSTRIES, INC. 0 0 1 1 2 1 0 0 0 0 0 0 1 1 2 1 0 0 0 1 2 1 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 18
CAMPAGNIE FRANCAISE DES PETROLES, SOCIETE ANONYME 0 0 0 0 0 1 0 0 1 1 1 3 0 0 0 4 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17
EXPRO NORTH SEA 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 2 0 0 6 5 2 0 0 1 1 17
KVAERNER OIFIELD PRODUCTS, 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 3 5 0 2 4 3 0 17
ROCKWELL MANUFACTURING COMPANY 5 3 2 1 5 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 17
LYNES, INC. 2 4 4 0 1 1 0 2 0 0 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 0 0 16
SHELL OFFSHORE INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 3 2 0 1 0 5 0 0 0 0 0 0 0 0 1 0 0 0 0 16
TEXACO EXPLORATION CANADA LTD. 0 0 0 0 0 1 1 4 3 5 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 16
DAVIS-LYNCH, INC. 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 2 2 2 0 1 1 0 1 0 0 0 3 0 1 0 15
NL INDUSTRIES INC. 0 0 0 1 0 1 0 0 0 1 0 0 2 0 3 2 2 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15
WESTERN ATLAS INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 1 5 2 0 0 1 1 1 0 0 0 0 15
WORLD ENERGY SYSTEMS, INCORPORATED 0 0 0 0 0 0 0 2 2 2 1 1 0 0 0 0 0 1 1 0 1 0 0 1 0 0 0 0 0 0 0 2 1 0 0 0 0 15
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 3 7 3 1 0 0 0 0 0 0 0 14
IIT RESEARCH INSTITUTE 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 4 3 0 1 0 1 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 14
LINDSEY COMPLETION SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 4 2 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
VARCO I/P, 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 2 2 4 6 14
VARCO INTERNATIONAL, INC. 0 0 0 0 0 2 2 1 0 0 0 0 0 0 1 4 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 14
FRANK'S INTERNATIONAL, 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 2 2 0 1 3 2 2 1 13
CALGON CORPORATION 2 0 1 1 2 1 0 3 1 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 12
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 7 3 2 12
ELF EXPLORATION PRODUCTION 0 0 0 0 0 0 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 3 5 0 1 0 0 12
PETROLITE CORPORATION 0 0 1 0 2 2 1 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 12
BAROID TECHNOLOGY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 1 0 1 2 1 2 0 1 0 0 0 0 0 11
BOWEN TOOLS, INC. 2 0 0 3 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 11
CHEVRON U.S.A. 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 1 1 1 0 1 1 1 1 1 11
COOK TESTING CO. 6 1 1 1 0 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 0 0 0 0 0 0 11
FRANK'S CASING CREW & RENTAL TOOLS, 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 2 1 0 1 1 4 0 2 11
HALLIBURTON LOGGING SERVICES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 2 3 1 0 0 0 0 0 0 0 0 0 0 0 11
PES, 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 2 4 1 3 0 0 0 0 0 11
Q.E.D. ENVIRONMENTAL SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 2 3 0 2 0 0 0 0 0 0 1 0 0 11
STANDARD OIL COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 0 2 0 3 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
BESTLINE LINER SYSTEMS, 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 0 1 2 0 4 1 0 0 1 0 0 0 10
DEEP OIL TECHNOLOGY INC. 0 0 0 2 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 0 0 0 0 0 10
GAS RESEARCH INSTITUTE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 0 0 0 1 1 2 2 0 0 0 0 0 10
ROCKWELL INTERNATIONAL CORPORATION 0 2 3 0 0 2 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
BJ HUGHES INC. 0 0 0 0 0 0 0 0 2 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 0 0 0 9
JET RESEARCH CENTER, INC. 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 1 0 0 0 2 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 9
KUDU 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 1 0 0 1 5 0 1 0 1 0 9
PETROLEUM ENGINEERING SERVICES 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 2 1 2 0 3 0 1 0 0 0 0 9
REGAN FORGE AND ENGINEERING COMPANY 2 2 1 1 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 9
SPECIALIZED PETROLEUM SERVICES 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 3 4 2 0 0 0 9
STREAM-FLO INDUSTRIES 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 2 0 0 0 1 2 3 1 9
TAM INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 1 1 0 0 1 1 0 0 0 0 0 1 0 9
TRW INC. 0 0 0 0 0 0 0 0 2 0 0 1 0 2 1 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
UNITED STATES OF AMERICA, DEPARTMENT OF THE INTERIOR 1 1 0 1 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 9
VASTAR RESOURCES, 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 1 4 2 1 0 0 0 0 9
WESTERN WELL TOOL, 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 0 1 0 2 1 2 2 0 9
B + W INCORPORATED 2 0 4 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 0 0 0 0 0 0 0 8
CITIES SERVICE OIL AND GAS CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 6 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
CTC INTERNATIONAL 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 2 3 3 0 0 0 0 0 0 0 0 0 0 8
DEUTSCHE TEXACO AKTIENGESELLSCHAFT 0 0 0 1 1 0 0 1 2 0 0 0 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
EXXON CHEMICALS PATENTS INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 3 0 1 1 0 0 0 0 0 0 0 0 0 0 0 8
KOBE, INC. 0 0 0 0 1 1 0 1 0 0 1 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 8
LION CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
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 1 0 0 1 3 2 1 8
RAYTHEON COMPANY 0 0 0 0 0 0 0 0 0 0 2 0 1 1 0 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
WOOD GROUP ESP, 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 2 4 2 0 8
ALBERTA RESEARCH COUNCIL INC. 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 1 0 7
COMPLETION TOOL COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
DOUBLE-E INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 1 0 0 0 1 0 1 0 0 0 1 7
DOWNHOLE PRODUCTS (UK) 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 1 1 0 0 2 1 1 1 7
ENTREPRISE DE RECHERCHES ET D'ACTIVITIES PETROLIERES (E.R. 0 0 1 0 1 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 0 0 0 0 0 0 7
GLOBAL MARINE PERFORMANCE, INC. 0 1 1 1 1 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
J. C. KINLEY COMPANY 1 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
MACCO OIL TOOL COMPANY, INC. 0 0 0 0 0 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 7
MIDWAY FISHING TOOL COMPANY 1 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
MWL TOOL AND SUPPLY COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
ORYX ENERGY COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 3 0 0 0 0 0 0 0 0 0 0 0 0 7
OSCA, INC. 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 1 0 1 0 1 2 0 0 0 7
PRODUCTION SPECIALTIES, INC. 0 0 0 0 0 1 0 0 6 0 0 0 0 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
REEVES WIRELINE TECHNOLOGIES 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 1 2 2 2 0 7
SENSOR HIGHWAY 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 0 0 1 4 1 1 7
SOLINST CANADA 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 1 0 1 2 0 0 0 0 1 0 1 1 0 7
STEWART + STEVENSON SERVICES, INC. 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 1 0 1 0 0 0 7
TELEDYNE INDUSTRIES, INC. 0 0 0 0 0 0 1 2 2 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
TEXACO CANADA RESOURCES, LTD. 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 2 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
VETCO OFFSHORE, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
WEATHERFORD INTERNATIONAL, 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 1 2 3 0 0 1 0 7
WESTBAY INSTRUMENTS, INC. 0 0 0 0 0 0 0 0 0 0 0 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 0 0 0 7
WESTINGHOUSE ELECTRIC CORP. 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 7
WILSON INDUSTRIES, INC. 0 1 0 0 0 1 0 0 0 3 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
A-Z INTERNATIONAL TOOL COMPANY 0 0 1 0 0 1 0 1 0 1 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
ABB OFFSHORE SYSTEMS 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 0 0 2 1 3 0 6
ALLAMON INTEREST 0 0 0 0 0 0 0 0 0 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 4 1 6
BAKER MANUFACTURING CO., INC. 0 0 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 6
CANADIAN FRACMASTER, LTD. 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 2 0 0 0 0 0 0 0 0 0 6
CARMEL ENERGY, INC. 0 0 0 0 0 0 0 2 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
COMBUSTION ENGINEERING INC. 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
COMPLETION SERVICES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 6
DRILLFLEX 0 0 0 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 1 1 1 0 1 0 0 0 6
ELECTROTHERMIC CO. 0 2 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 0 0 0 0 0 0 0 0 6
GULF OIL CORPORATION 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
HOUSTON ENGINEERS, INC. 1 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 6
ICI AMERICAS INC. 0 0 0 0 0 4 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 6
IEG INDUSTRIE-ENGINEERING GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 1 2 0 0 0 0 0 0 0 0 0 0 0 6
LAFLEUR PETROLEUM 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 1 2 2 0 0 0 0 0 0 0 0 0 1 6
MASX ENERGY SERVICES GROUP, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 2 0 0 0 0 0 0 0 0 0 0 0 0 6
NATURAL RESERVES GROUP, 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 2 0 0 2 1 1 0 0 0 0 0 0 6
OFFSHORE 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 0 0 0 0 0 1 1 3 1 6
PLEXUS OCEAN SYSTEMS LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 2 0 0 1 0 0 6
SHELL WESTERN E&P INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
UNION CARBIDE CORPORATION 1 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 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 0 0 0 1 1 0 2 6
W K M WELLHEAD SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 1 2 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
WADA VENTURES 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 2 2 0 0 0 0 0 0 0 0 0 0 6
AIR PRODUCTS AND CHEMICALS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
AMERICAN CYANAMID COMPANY 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
ARROW OIL TOOLS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
BATTELLE MEMORIAL INSTITUTE 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 0 0 0 0 1 0 0 5
BIP TECHNOLOGY, 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 4 1 5
CLEANSORB 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 1 1 0 0 0 1 0 2 0 5
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 1 0 2 0 0 0 0 0 0 1 1 0 0 5
COILED TUBING ENGINEERING 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 0 1 0 2 1 0 1 0 0 5
DEL NORTE TECHNOLOGY, INC. 0 0 0 0 0 0 1 0 0 3 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 5
DRILEX SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
EASTERN OIL TOOLS PTE, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
ELECTRIC WIRELINE SPECIALTIES, INC. 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 0 0 0 0 0 0 0 0 5
ELECTRO-PETROLEUM INC. MESNE 0 0 0 0 0 1 0 0 0 0 0 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 1 5
ENSCI INCORPORATED 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 1 0 2 1 0 0 0 0 0 0 0 0 5
EXPLORATION AND PRODUCTION SERVICES (NORTH SEA) 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 3 0 0 1 0 0 1 0 0 0 0 0 0 5
GENERAL ELECTRIC COMPANY 0 0 0 0 1 0 0 0 2 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 5
GENERAL MOTORS 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 1 1 0 1 1 0 1 0 0 0 0 0 0 5
HUELS AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
HYDRA-RIG, INC. 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 1 0 0 0 0 0 1 2 0 0 0 0 5
KELLOGG BROWN & ROOT, 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 1 1 2 0 5
LAYNE + BOWLER COMPANY 1 0 3 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 5
MAGNA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 1 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
MUTH PUMP 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 1 0 1 1 0 1 0 1 0 0 5
NORSK HYDRO A/S 0 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 5
OCEANEERING INTERNATIONAL, 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 2 1 1 0 0 1 0 0 5
OIL & GAS RENTAL 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 0 0 0 1 0 3 1 0 0 5
PALL 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 2 0 1 0 2 0 0 0 0 0 0 5
REGAN OFFSHORE INTERNATIONAL, INC. 0 0 0 0 0 0 2 1 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 5
SANDIA 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 2 0 0 1 0 1 1 0 5
SCIENTIFIC DRILLING INTERNATIONAL, 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 1 0 2 1 0 0 0 0 0 0 1 0 5
SOCIETE NATIONALE ELF AQUITAINE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 2 0 1 0 0 0 0 0 0 0 0 0 5
SONSUB, 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 1 2 0 1 0 1 0 0 0 0 0 5
SPECIALTY MACHINE & SUPPLY, 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 1 1 1 0 2 0 0 0 0 0 0 0 5
SPS-AFOS GROUP 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 0 1 2 2 0 0 5
SUBSEA EQUIPMENT ASSOCIATES LIMITED 0 0 0 0 0 1 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 0 5
TEXACO DEVELOPMENT CORPORATION 0 0 0 0 0 0 1 0 1 0 1 1 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 5
TEXACO TRINIDAD, INC. 0 1 0 0 0 0 1 1 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 5
TEXAS UNITED CHEMICAL COMPANY, LLC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 0 0 5
UENTECH CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 5
WELL-EQUIP LIMITED 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 2 0 0 0 0 0 0 0 0 0 5
XEROX CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 1 0 0 1 0 0 0 5


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