NATIONAL OILWELL DHT, L.P.

BLACKBOX

Electronic data recorder for logging, storing, and/or transmitting data from equipment and/or instrumentation used in the drilling, producing, or servicing of oil and gas wells;BLACK BOX;

BOWEN

ISSUE NEW CERTIFICATE TO: NATIONAL OILWELL DHT, L.P., P.O. BOX 4888, HOUSTON, TX 77210, (DELAWARE CORPORATION);SPECIALTY TOOLS AND PARTS THEREFOR-NAMELY, SPEARS, LINE WIPERS, BAILERS, BUMPER SUBS, BLANKING PLUGS, WIRE LINE BLOCKS, BLOWOUT PREVENTERS, OVERSHOTS, CASING EXPANSION JOINTS, WIPERS, CASING ROLLERS, CASING SCRAPERS, DIE COLLARS, JARS, CONTROL HEADS, COUPLINGS, SUBS, CUTTERS, OIL WELL JARS, JUNK MILLS, JUNK SUBS, LUBRICATOR ACCESSORIES, LUBRICATOR UNIONS, MILL GUIDES, MILLING SHOES, MUD DESANDERS, OVERSIZE GUIDES, PACKER RETRIEVERS, POWER SUBS, POWER SWIVELS PUMP ROD OILERS, STABILIZERS, ROPE SOCKETS, ROTARY SHOES, STRIPPERS, TAPER TAPS, SINKER BARS, SKIRT GUIDES, STUFFING BOXES, LUBRICATOR SWAGES, TOOL TRAPS, BLANKING PLUGS, UNLATCHING JOINTS, WALL HOOK GUIDES, WASHOVER SHOES, WHIPSTOCKS, WING UNIONS, WIRE LINE RETRIEVERS, OVERSHOT BOWLS, CABLE GUIDES, CABLE HANGERS, CABLE INJECTORS, WIRE LINE CLEANERS, DIFFERENTIAL PRESSURE REGULATORS, DRILLS, WIRE LINE GRABS, GUIDED MILL ASSEMBLIES, HAND HOISTS, HIGH PRESSURE SEAL ASSEMBLIES, JET BOOT BASKETS, KNUCKLE JOINTS, LINER HANGERS, LINER WASHERS, PARAFFIN SCRAPERS, POWER KELLYS, POWER SUBS, SWIVELS, TRANSFER ASSEMBLIES, AND TUBING INJECTORS;

INTENSIFIER

IN THE STATEMENT, COLUMN 1, LINE 1, TEXAS SHOULD BE DELETED, AND DELAWARE SHOULD BE INSERTED.;oil and gas downhole tool, namely a mechanical jarring tool;

QUADRIL

Downhole drilling tools, namely, downhole drilling motors for use in oil and gas wells;

RMK

drilling motors;ROCKY MOUNTAIN KING;

SPIDLE ROCKY MOUNTAIN KING

drilling motors;

STEMULATOR

oil and gas well equipment, namely, a non-power operated downhole tool for vacillating the bottom hole assembly to improve weight transfer and reduce friction;STEM SIMULATOR;

TELEDRIFT

OIL AND GAS WELL DOWNHOLE SURVEY AND MEASUREMENT EQUIPMENT;The wording TELEDRIFT has no meaning in a foreign language.;

VELOCITY CONVENTIONAL

downhole drilling tools, namely, core barrels, core bits, coring jars, and core catchers used in the drilling of oil wells;Wellbore coring services; rental of oil well drilling tools, specifically core barrels and drill pipe;CONVENTIONAL;