Mark Identification

ENHANCED LATERAL RECOVERY

Serial Number

76269859

Filing Date

Jun 11, 2001

Registration Date

Apr 1, 2003

Trademark by

ENVIRONMENTAL DRILLING TECHNOLOGY INCORPORATED

Classification Information

DRILLING MUD AND CHEMICALS USED IN OIL DRILLING

Chemicals

DRILLING EQUIPMENT AND DRILLING TOOLS, NAMELY DRILL COLLARS, STABILIZERS, AND TURBULIZERS

Machinery

WELL DRILLING, DRILLING FOR CRUDE OIL AND NATURAL GAS

Building Construction and Repair

DRILLING ENGINEERING

Computer and Scientific