BASIC EARTH SCIENCE SYSTEMS INC

633 17TH STREET, SUITE 1670, DENVER CO 80202, 3032949525
CRUDE PETROLEUM & NATURAL GAS

1997 SEC Filings

BASIC EARTH SCIENCE SYSTEMS INC, 10QSB, 1997-11-14
BASIC EARTH SCIENCE SYSTEMS INC, 10QSB, 1997-08-14
BASIC EARTH SCIENCE SYSTEMS INC, 10-K/A, 1997-07-28
BASIC EARTH SCIENCE SYSTEMS INC, 10KSB, 1997-06-27
BASIC EARTH SCIENCE SYSTEMS INC, 8-K/A, 1997-05-30
BASIC EARTH SCIENCE SYSTEMS INC, 8-K/A, 1997-05-08
BASIC EARTH SCIENCE SYSTEMS INC, 8-K, 1997-05-02
BASIC EARTH SCIENCE SYSTEMS INC, 10QSB, 1997-02-14


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