BASIC EARTH SCIENCE SYSTEMS INC


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

1998 SEC Filings

BASIC EARTH SCIENCE SYSTEMS INC, 10QSB, 1998-11-24
BASIC EARTH SCIENCE SYSTEMS INC, 10QSB, 1998-11-18
BASIC EARTH SCIENCE SYSTEMS INC, 10KSB, 1998-07-09
BASIC EARTH SCIENCE SYSTEMS INC, NT 10-K, 1998-06-29
BASIC EARTH SCIENCE SYSTEMS INC, 10QSB, 1998-02-17


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