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Oil Thief

The Oil Thief can be customized to suit your sampling needs. Its approximate shipping weight is between 8-10 lbs depending on the material and size of the barrel.

Internal Valve (Left), External Valve (Right)

Oil Thief Features

  • A simple device for taking accurate samples.
  • Each oil thief weighs approximately 8-10 lbs.
  • Standard barrel lengths are 12”, 14”, 16”, 18”, and 24.”(Custom barrel lengths are available upon request.)
  • Barrels are available in plastic, Pyrex glass or polished brass.
  • All barrels, except for Pyrex, can be available with sample cock(s)(Part# O0022) upon request.
  • Lowering devices can be your choice of either brass chain or braided rope with fittings.

Oil Thief Models

PART # Description
OT12BB Oil Thief BRZ 12" Brass Barrel
OT12BP Oil Thief BRZ 12" Plastic Barrel
OT12PY Oil Thief BRZ 12" Pyrex Barrel
OT14BB Oil Thief BRZ 14" Brass Barrel
OT14BP Oil Thief BRZ 14" Plastic Barrel
OT14PY Oil Thief BRZ 14" Pyrex Barrel
OT16BB Oil Thief BRZ 16" Brass Barrel
OT16BP Oil Thief BRZ 16" Plastic Barrel
OT16PY Oil Thief BRZ 16" Pyrex Barrel
OT18BB Oil Thief BRZ 18" Brass Barrel
OT18BP Oil Thief BRZ 18" Plastic Barrel
OT18PY Oil Thief BRZ 18" Pyrex Barrel
OT24BB Oil Thief BRZ 24" Brass Barrel
OT24BP Oil Thief BRZ 24" Plastic Barrel
OT24PY Oil Thief BRZ 24" Pyrex Barrel


Standard Parts

PART# Description QTY.
O0001 O0001-IV Body 1 1
O0002 O0002-IV Top Ring 1 1
O0003 O0003-IV Valve 1 1
O0003A O0003AIV O-Ring Valve Seal 1 1
Trip Rod 1 1
Trip Rod Sleeve 1 1
O0011A O0011A Bail Assy 1 1
O0021 n/a Hanger 1 n/a
Plastic Barrel 1 1
M1012 M1012 Cork Gasket 1 1
X0T09 X0T09 Brass Thumbscrew 2 1
X0T17 X0T29 Brass Acorn Nut 4 2

* Part numbers indicated as “▬” vary based on barrel length and material.


PART# Description
O0025C w/ Fittings 25' Brass Chain with Fittings
O0025R w/ Fittings 25’ Cotton Rope with Fittings
O0032C w/ Fittings 32’ Brass Chain with Fittings
O0032R w/ Fittings 32’ Cotton Rope with Fittings


  1. For samples at tank bottom, lower the Oil Thief until it bumps bottom, tripping the rod and closing the valve.
  2. For samples as much as 8” from tank bottom, set trip rod to the desired distance below the Thief bottom.
  3. Thief can be tripped at any depth by jerking on the line