A320
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Workload; Troubleshooting; Time Pressure; Situational Awareness; Distraction; Physiological - Other
Aircraft Equipment Problem Less Severe; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
General None Reported / Taken
Aircraft
Approximately 10 minutes into flight while climbing through 12;000 feet the aft cabin flight attendants reported an oil smell. Several minutes later the smell dissipated; we continued climb to cruise altitude. During the descent into ZZZ1 the same oil smell was observed again by the aft cabin flight attendants. Flight crew was made aware of the smell approximately passing through 10;000 feet. The smell dissipated prior to landing.  Flight crew and forward flight attendants never smelled anything. A detailed logbook entry of the event was made as well as filling out the odor report form; which was left with outbound operating crew.
Air Carrier Pilot reported the aft cabin flight attendants noticed an oil smell during climb; cruise; and descent. The flight deck and forward flight attendants did not smell anything.