COLORADO OPERATORS ELECTRONICALLY SUBMITTING MONTHLY REPORT OF

							   COLORADO OPERATORS ELECTRONICALLY SUBMITTING
          MONTHLY REPORT OF OPERATIONS

44 CANYON LLC                    MARKWEST RESOURCES INC
ACEITE ENERGY CORP               MATRIX ENERGY LLC
AMOCO PRODUCTION CO.             MCELVAN OIL & GAS PROPERTIES
ANSCHUTZ EXPLORATION CORP        MERIT ENERGY COMPANY
BALLARD PETROLEUM LLC            MULL DRILLING CO INC
BARRETT RESOURCES CORP           MURCHISON OIL & GAS
BATAA OIL, INC.                  NORTH AMERICAN RESOURCES CO
BAYLESS* ROBERT L                OCEAN ENERGY RESOURCES INC
BENCHMARK OIL & GAS CORP         PATINA OIL & GAS CORPORATION
BEREN CORPORATION                PEACOCK OIL CO INC
BONNEVILLE FUELS CORP            PETRA OLEUM CORP
BOULDER OIL COMPANY              PETROGLYPH OPERATING CO INC
BURLINGTON RESOURCES OIL & GAS   PETROLEUM DEVELOPMENT CORP
CALPINE NATURAL GAS COMPANY      PLAINS PETROLEUM OPERATING CO
CHEMCO INC                       POZO RESOURCES, INC
CHESAPEAKE OPERATING INC         PRIMA OIL & GAS COMPANY
CHEVRON U S A INC                PRIME OPERATING COMPANY
COASTAL OIL & GAS CORP           QUESTAR EXPL. & PROD. CO
D & G ROUSTABOUT SERVICE         RIM OPERATING, INC
D J PRODUCTION SERVICES INC      RIO MESA RESOURCES INC
DIAMOND OPERATING, INC.          RITCHIE EXPLORATION INC
DOHENY* PATRICK A                ROSEWOOD RESOURCES INC
DUNCAN OIL INC                   SAMEDAN OIL CORP
EVERGREEN OPERATING CORP         SAMSON OIL CO
EXCO RESOURCES INC               SG INTERESTS I, LTD
FLYING J OIL & GAS INC           SHENANDOAH ENERGY INC
FOUR STAR OIL & GAS COMPANY      SOUTHWESTERN PRODUCTION CORP
HALEY/HUGHES OPERATIONS          SOVEREIGN ENERGY LLC
HALLWOOD PETROLEUM INC           STELBAR OIL CORP INC
HOLCOMB OIL & GAS INC            STEWART PETROLEUM CORP
HS RESOURCES INC                 STRACHAN EXPLORATION, INC
J-W OPERATING CO                 TEXACO E & P INC
K P KAUFFMAN COMPANY INC         TWIN ARROW INC
KCS RESOURCES INC                UNIOIL
KOCH EXPL CO                     UNITED STATES EXPLORATION INC
LEWIS & CLARK EXPLORATION CO     VALLEY OPERATING INC
LOCIN OIL CORPORATION            WALSH PRODUCTION INC
LONE MOUNTAIN PRODUCTION CO      WBI PRODUCTION
LUFF EXPLORATION CO              WHITING PETROLEUM CORP
MARKUS PRODUCTION, INC           WIEPKING-FULLERTON ENERGY LLC




October 2000 reporting period                        March13, 2001