ENSCO International Incorporated

CANTI-LEVERAGE ADVANTAGE

Contract drilling of oil and gas wells;

CTT

Logging tools, namely, computer hardware and software to vary speed of a tubular member moving into or out of a wellbore, to define a tripping speed, to vary a tripping speed in response to pressure variations within the wellbore as measured by one or more pressure sensors coupled to a tubular member positioned within a wellbore of an oil or gas well;Automated pipe tripping apparatus, namely, an outer frame consisting of one or more vertical supports and an inner frame consisting of tripping slips including forcing rings, slip jaws, iron roughnecks, fixed jaws, breakout jaws, pipe spinner, mud bucket; drills, drill bits, drill heads and drill strings for use in drilling oil or gas wells and pumping oil;Installation, removal, repair, and maintenance of drilling machines and drilling tools in connection with drilling oil and gas wells for others; drilling of oil or gas wells for others; installation, removal, repair, and maintenance of automated pipe tripping apparatus for conveying drilling tools in connection with drilling oil or gas wells for others; installation, removal, repair, and maintenance of drills, drill bits, drill heads, and drill strings in connection with drilling oil or gas wells for others; oil and gas drilling services;Analysis for oil and gas field exploration;

ENSCO

ENERGY SERVICE COMPANY;CONTRACT DRILLING OF OIL AND GAS WELLS;

ENSCO

ENERGY SERVICE COMPANY, INC.;OIL AND GAS WELL CONTRACT DRILLING SERVICES;

ENSCO

The mark consists of the word ensco appearing above opposing wing shapes.;contract drilling of oil and gas wells;Color is not claimed as a feature of the mark.;