Help with yield changes

[TheWaWPro]

I can't figure out what is going on with this modifier.

http://imgur.com/a/taCbt

In game it adds the yield to every tile for some reason.

 

[Infixo]

Wrong definition of requirement set.

 

[StormingRomans]

Looks like you're missing the actual requirement definition. Add the following

<RequirementSetRequirements>
    <Row>
        <RequirementSetId>RESOURCE_IS_OIL</RequirementSetId>
        <RequirementId>REQUIRES_RESOURCE_IS_OIL</RequirementId>
    </Row>
</RequirementSetRequirements>
<Requirement>
    <RequirementId>REQUIRES_RESOURCE_IS_OIL</RequirementId>
    <RequirementType>REQUIREMENT_PLOT_RESOURCE_TYPE_MATCHES</RequirementType>
</Requirement>
<RequirementArguments>
    <RequirementId>REQUIRES_RESOURCE_IS_OIL</RequirementId>
    <Name>ResourceType</Name>
    <Value>RESOURCE_OIL</Value>
</RequirementArguments>