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FORELAND CORP

ALFORD OIL CORP

YORKSHIRE REALTY GROUP INC

TRIUMPH-LOR INC

DIXIE OPERATING CO

READING & BATES PETROLEUM CO

RAMCO-NYL 1987 LTD PARTNERSHIP

DOWELL SCHLUMBERGER INC

PETRO-SERVE LTD

MAGNOLIA DEVELOPMENT CORP

SWAN, WILLIAM B

DANIEL, WILLIAM B III

FURRH, LARRY

ENERGY SERVICE & SUPPLY

SCHLUMBERGER WELL SERVICES

SCHLUMBERGER TECHNOLOGY CORP

SUN OPERATING LTD PARTNERSHIP

SUN EXPLORATION & PRODUCTION CO

VEAL, HARRY K

H K VEAL & CO

BUCY, SUZANNE D

GETTY ET AL

R B OPERATING CO

RB OPERATING CO (AKA)