Extract Credit Limit from FD33 T-Code

Can anyone tell me please in what Extractor "Credit Exposure" from T-Code FD33 is stored?

It's the field OBLIG of the structure RF02L, but it's a structure, not a table, so I can't extract from it.

"Credit Exposure"

Also

Recievables

Special Liabilities

Sales Value

This last three comose the "Credit Exposure"

I simply need extract this data from FI to BW and I can't find the extractor, so I think to extract directly from the table, but which ones?

Thanks