AC	Accumulators & Related
AP	Air Compressors
AT	Air & Hyd. Tuggers
BH	Block/Hook Combinations
BL	Blocks
BP	B.O.P's & Related
BR	Brakes
CE	Construction/Forklifts & Related
CP	Clutches & PTO
DC	Drill Collars
DP	Drill Pipe
DR	Drilling & Workover Rigs
DW	Drawworks/Compounds
EL	Elevator Links
EM	Electric Motors
FO	Fishing Tools
FT	Fuel & Water Tanks
GS	Generators & Generator Sets
HK	Hooks
HO	Hoses
HT	Handling Tools
HU	Hydraulic Units
IN	Instrumentation
KD	Kellys & Kelly Drivers
MC	Miscellaneous
ME	Mud Equipment
MP	Pumps/Drilling/Well Service/Cement
MS	Mast/Substructures
PH	Pusher Houses
PU	Power Units Gas & Diesel
RA	Racks
RT	Rotary Tables
SE	SCR Equipment & Electrical
SH	Steel Houses
SR	Spool Racks & Cable
SV	Sheaves
SW	Swivels
TC	Torque Converters
TD	Top Drives
TR	Transmissions & Gear Boxes
VA	Valves & Manifolds
WI	Winches