# getEffectiveProduction

> Returns the production entries that count for derivations: every entry not retracted by a corrects reference. Order is preserved. Entries of unknown (x-…) types are kept here but ignored by the volume derivations.

> **getEffectiveProduction**(`well`): `ProductionEntry`[]

Returns the `production` entries that count for derivations: every entry
not retracted by a `corrects` reference. Order is preserved. Entries of
unknown (`x-…`) types are kept here but ignored by the volume derivations.

## Parameters

### well

`Well`

## Returns

`ProductionEntry`[]