• 4 31.5 gallons of beer (Abbr.)
• 42 gal.
• 42 gal., to OPEC
• 42 gallons of oil: Abbr.
• Barrel in brief
• Crude amt.
• Crude container?: Abbr.
• Crude meas.
• Crude measurement: Abbr.
• Crude unit: Abbr.
• Five cu. ft. of sugar
• Keg: abbr.
• Large container: Abbr.
• Oil container: Abbr.
• Oil meas.
• Oil measure: Abbr.
• Oil qty.
• Oil refinery amt.
• Oil shipment: Abbr.
• OPEC amount
• OPEC container
• OPEC meas.
• OPEC measure
• OPEC unit
• OPEC unit of meas.
• OPEC unit of measure
• OPEC unit: Abbr.
• Peak oil meas.
• Petroleum meas.
• Petroleum measure: abbr.
• Tankerload: Abbr.
• Unit of oil production (Abbr.)
• Unit of oil production, briefly
• Unit of volume: abbr.
• Any of various units of capacity