Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS, INC.

Sep 7, 1993

Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS, INC.

Jul 28, 1992

Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS, INC.

—

Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS, INC.

Oct 18, 1988

Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS INC.

Jun 17, 1986

Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS INC.

Aug 5, 1986

Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS INC.

Jul 29, 1986

Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS INC.

Mar 25, 1986

Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS INC.

Aug 5, 1986

Chemicals

Owner

INTERNATIONAL DRILLING FLUIDS INC.

Aug 5, 1986