WConductor pipe
WCrown block
WDerrickhand
WDesander
WDirectional well
WDrill floor
WDrill line
WDrill string
WDriller (oil)
WDrilling rig
WInternational Drillers
WKelly drive
WOil well dog house
WOil well fire
WPetrology
WRotary table (drilling rig)
WRoughneck
WStripper well
WSucker rod
WSwivel (drill rig)
WTraveling block
WTripping (pipe)
WTrue vertical depth
WWellhead