| Physical object or accident that caused the oil spill |
| •owl:Thing |
| •amo:Object |
| •amo:Feature |
| •amo:MarineFeature |
| •amo:MarinePoint |
| •amo:MeasurementPoint |
| •amo:InstantaneousPoint |
| •amo:Instant |
| •oilspills:OilSpillCause |
Class(oilspills:OilSpillCause partial amo:Instant)