CATARINA, SW. (OLMOS), District 01, Texas

Our estimate: volumes the operator filed with the Commission, valued at the EIA first-purchase price for that month. It is not a payment anyone received, and it is not a royalty. It sums the 141 leases in this field that have a page here — 66% of the register's 213 — so it understates the field.

The discovery well's oil measured 48.2° API gravity, perforated at 5,034 ft.

Commission remarks: OPTIONAL 80 ACRE UNIT MAX DIAG 4000

Field number 16340500, from the Railroad Commission's field register. The register's own index resolves 213 leases and 214 wells to this field by name, over every lease in Texas rather than only those with a page here. It resolves a lease by NAME and refuses an ambiguous one, so it counts nothing for a field that shares its name with another — which is why the lease count above comes from the field number instead.