35330 - Oil & Gas field machinery (Miscellaneous)
35331 - Rotary oil field & Gas field drilling machinery & Equipment
3533111 - - Rotary drilling surface Blocks, Crown & Traveling
3533112 - - Rotary drilling surface Draw works & Accessories
3533114 - - Rotary drilling surface Rotary tables
3533115 - - Rotary drilling surface Elevators, Spiders, Slips, Hooks, Links & Connectors
3533116 - - Rotary drilling surface Swivels & Accessories
3533117 - - Rotary drilling surface Well control equipment (Blow-out preventers, etc.)
3533121 - - Rotary drilling surface equipment: other + Kelly joints
3533141 - - Rotary drilling subsurface Bits
3533143 - - Rotary drilling subsurface Coring equipment
3533144 - - Rotary drilling subsurface Tool joints, Subs & Connectors
3533145 - - Rotary drilling subsurface Drill collars
3533146 - - Rotary drilling subsurface Reamers & Stabilizers
3533147 - - Rotary drilling subsurface Fishing & Cutting tools
3533148 - - Rotary drilling Subsea drilling risers
3533159 - - Rotary drilling subsurface equipment: Other
3533199 - - Rotary oil field & Gas field drilling machinery & Equipment (Miscellaneous)
35332 - Oil field & Gas field drilling machinery & Equipment (General)
3533231 - - Cable tool drilling machinery & Equipment + both Surface & Subsurface equipment
3533251 - - Cementing, Floating, Guiding & Shoe equipment: Guide shoes, Float collars & Combination guide & Float shoes
3533255 - - Cementing, Floating, Guiding & Shoe equipment: other Cementing equipment
3533261 - - Parts for Oil & Gas field drilling equipment sold separately, except parts for Portable drilling rigs
3533298 - - Oil & Gas field drilling equipment (General) except portable
3533299 - - Oil field & Gas field drilling machinery & Equipment (Miscellaneous)
35333 - Oil field & Gas field production machinery & Equipment (except pumps)
3533312 - - Production well: Christmas tree assemblies, excl subsea
3533313 - - Production well: Casing & Tubing heads & Supports
3533314 - - Production well: Chokes, Manifolds & other Accessories (excl subsea manifolds & Templates)
3533319 - - Rodless oil lifting machinery & Equipment (except pumps)
3533321 - - Subsea Christmas tree assemblies, Manifolds & Templates
3533353 - - Rod lifting machinery & Equipment, Surface + Pumps when they are components of a complete assembly: Pumping units & Accessories + Back crank equipment
3533355 - - Rod lifting machinery & Equipment, Surface + Pumps when they are components of a complete assembly: other Surface rod lifting machinery & Equipment
3533357 - - Subsurface rod lifting equipment (Sucker rods) except pumps
3533361 - - Oil production machinery & Equipment: Packers
3533365 - - Oil production machinery & Equipment: Screens, Tubing, Catchers, etc.
3533371 - - Oil & Gas separating, Metering & Treating equipment
3533382 - - Oil production machinery & Equipment: Parts & Tools, sold separately, excl parts for Portable drilling rigs
3533398 - - Oil & Gas field production machinery & Tools
3533399 - - Oil field & Gas field production machinery & Equipment (except pumps) (Miscellaneous)
35335 - Portable drilling rigs
3533510 - - Portable drilling rigs (Mounted & Unmounted) used on the surface (Above ground)
3533511 - - Portable drilling rigs with pull-back capacity (Water well, Mineral exploration, Shallow oil & Gas): Cable tool (All sizes)
3533513 - - Portable drilling rigs with pull-back capacity (Water well, Mineral exploration, Shallow oil & Gas): Reverse circulation (=>18 in.)
3533521 - - Portable drilling rigs: Rotary trailer & Truck mounted: =<14999 lb
3533523 - - Portable drilling rigs: Rotary trailer & Truck mounted: 15000-29999 lb
3533525 - - Portable drilling rigs: Rotary trailer & Truck mounted: 30000-59999 lb
3533527 - - Portable drilling rigs: Rotary trailer & Truck mounted: 60000-74999 lb
3533529 - - Portable drilling rigs: Rotary trailer & Truck mounted: =>75000 lb
3533531 - - Portable drilling rigs: Blasthole, Rotary: Truck mounted: =<29999 lb
3533533 - - Portable drilling rigs: Blasthole, Rotary: Truck mounted: 30000-59999 lb
3533535 - - Portable drilling rigs: Blasthole, Rotary: Truck mounted: =>60000 lb
3533537 - - Portable drilling rigs: Blasthole, Rotary: Track mounted: =<29999 lb
3533538 - - Portable drilling rigs: Blasthole, Rotary: Track mounted: 30000-59999 lb
3533539 - - Portable drilling rigs: Blasthole, Rotary: Track mounted: =>60000 lb
3533541 - - Portable drilling rigs: Construction: Bucket drills
3533543 - - Portable drilling rigs: Construction: Auger drills
3533549 - - Portable drilling rigs: all other + Unmounted drills
3533578 - - Parts for Portable drilling rigs used on the surface (Above ground)
3533599 - - Portable drilling rigs (Miscellaneous)
35336 - Oil field & Gas field derricks & Well surveying machinery
3533621 - - Derricks, Oil & Gas field, Substructures & Accessories regular & Portable
3533631 - - Well surveying machinery & Equipment
3533699 - - Oil field & Gas field derricks & Well surveying machinery (Miscellaneous)
35337 - Rotary drilling machinery & Equipment
3533711 - - Blocks, Crown & Traveling rotary oil & Gas field surface drilling equipment
3533712 - - Rotary oil & Gas field surface drilling draw works & Accessories
3533714 - - Rotary oil & Gas field surface drilling tables
3533715 - - Rotary oil & Gas field surface drilling elevators, Spiders, Slips, Hooks, Links & Connectors
3533716 - - Rotary oil & Gas field surface drilling swivels & Accessories
3533717 - - Rotary oil & Gas field surface drilling well control equipment (Blow-out preventers, etc.)
3533721 - - Other Rotary oil & Gas field surface drilling machinery & Equipment, incl Kelly joints
3533722 - - Rotary oil & Gas field subsurface drilling bits, with working part of Sintered metal carbide or Cermets
3533723 - - Rotary oil & Gas field subsurface drilling bits, with working part of other Material, incl Diamond
3533724 - - Rotary oil & Gas field subsurface drilling reamers & Stabilizers with working part of Sintered metal carbide or Cermets
3533725 - - Rotary oil & Gas field subsurface drilling reamers & Stabilizers with working part of other Material, incl Diamond
3533726 - - Rotary oil & Gas field subsurface drilling coring equipment with working part of Sintered metal carbide or Cermets
3533727 - - Rotary oil & Gas field subsurface drilling coring equipment with working part of other Material, incl Diamond
3533728 - - Rotary oil & Gas field subsurface drilling reamers & Stabilizers
3533732 - - Rotary oil & Gas field subsurface drilling coring equipment
3533744 - - Rotary oil & Gas field subsurface drilling tool joints, Subs & Connectors
3533745 - - Rotary oil & Gas field subsurface drilling drill collars
3533747 - - Rotary oil & Gas field subsurface drilling fishing & Cutting tools
3533748 - - Rotary oil & Gas field subsea drilling risers
3533759 - - Other Rotary oil & Gas field subsurface drilling equipment
3533761 - - Parts for Rotary oil & Gas field drilling equipment, sold separately (except for Portable drilling rigs)
3533799 - - Rotary oil field & Gas field drilling machinery & Equipment (Miscellaneous)
35338 - Miscellaneous drilling machinery & Equipment
3533831 - - Cable tool oil & Gas field drilling machinery & Equipment, incl both Surface & Subsurface equipment
3533851 - - Oil & Gas field drilling guide shoes, Float collars & Combination guide & Float shoes
3533855 - - Other Oil & Gas field drilling cementing equipment
3533898 - - Other Oil & Gas field drilling equipment, except rotary drilling equipment & Portable drilling rigs
3533899 - - Parts for other Oil & Gas field drilling equipment, sold separately
35339 - Oil field & Gas field production machinery & Equipment
3533912 - - Oil & Gas field production well christmas tree assemblies (Surface & Subsurface, excl subsea)
3533913 - - Oil & Gas field production well casings & Tubing heads & Supports (Surface, Subsurface & Subsea)
3533914 - - Oil & Gas field production well chokes, Manifolds & other Accessories (Surface, Subsurface & Subsea, excl subsea manifolds & Templates)
3533919 - - Oil & Gas field production well rodless oil lifting machinery & Equipment (except pumps)
3533921 - - Oil & Gas field production well subsea Christmas tree assemblies, Manifolds & Templates
3533953 - - Oil & Gas field surface rod lifting pumping units & Accessories, incl Back crank equipment
3533955 - - Other Oil & Gas field surface rod lifting machinery & Equipment
3533957 - - Oil & Gas field subsurface rod lifting equipment (Sucker rods) except pumps
3533961 - - Oil & Gas field packers
3533965 - - Oil & Gas field screens, Tubing, Catchers, etc.
3533971 - - Oil & Gas field separating, Metering & Treating equipment for use at the wellhead
3533982 - - Parts for Oil & Gas field production machinery & Tools, except for Pumps, sold separately
3533998 - - Other Oil & Gas field production machinery & Tools, except pumps
3533999 - - Oil field & Gas field production machinery & Equipment (except pumps) (Miscellaneous)
3533A - Portable drilling rigs & Parts
3533A10 - - Portable oil & Gas field drilling rigs (Mounted & Unmounted) used on the surface (Above ground)
3533A11 - - Cable tool portable drilling rigs with pull-back capacity (All sizes)
3533A13 - - Reverse circulation portable drilling rigs with pull-back capacity (18 inch or larger)
3533A21 - - Rotary-trailer & Truck mounted portable drilling rigs with pull-back capacity, <14999 lb
3533A23 - - Rotary-trailer & Truck mounted portable drilling rigs with pull-back capacity, 15000 to 29999 lb
3533A25 - - Rotary-trailer & Truck mounted portable drilling rigs with pull-back capacity, 30000 to 59999 lb
3533A27 - - Rotary-trailer & Truck mounted portable drilling rigs with pull-back capacity, 60000 to 74999 lb
3533A29 - - Rotary-trailer & Truck mounted portable drilling rigs with pull-back capacity, 75000 lb or more
3533A31 - - Portable rotary blasthole drilling rigs, Truck mounted, up to 29999 lb
3533A33 - - Portable rotary blasthole drilling rigs, Truck mounted, 30000 to 59999 lb
3533A35 - - Portable rotary blasthole drilling rigs, Truck mounted, 60000 lb or more
3533A37 - - Portable rotary blasthole drilling rigs, Track mounted, up to 29999 lb
3533A38 - - Portable rotary blasthole drilling rigs, Track mounted, 30000 to 59999 lb
3533A39 - - Portable rotary blasthole drilling rigs, Track mounted, 60000 lb or more
3533A41 - - Portable construction bucket drilling rigs
3533A43 - - Portable construction auger drilling rigs
3533A49 - - Other Portable drilling rigs, incl Workover (Service) rigs
3533A78 - - Parts for Portable drilling rigs
3533A99 - - Portable drilling rigs & Parts (Miscellaneous)
3533B - Derricks & Well surveying machinery
3533B21 - - Oil & Gas field derricks, Substructures & Accessories--regular & Portable
3533B32 - - Oil & Gas field well surveying machinery & Equipment, excl well logging equipment
3533B34 - - Oil & Gas field well logging equipment
3533B99 - - Oil & Gas field derricks & Well surveying machinery (Miscellaneous)
3533XX0 - - Oil field machinery (Miscellaneous - Volume)
3533XX2 - - Oil field machinery (Miscellaneous - Speciality)