LULING BRANYON R 40 EXC, District 01, Texas
A field is the Railroad Commission's unit of geology and of regulation. Its spacing rule is what decides how many wells an acreage can hold.
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 6 leases in this field that have a page here — 75% of the register's 8 — so it understates the field.
Production, 2025
The Railroad Commission's Oil and Gas Annual Report for 2025, its most recent. These are the state's figures for the whole field, not ours.
| Wells | In the field | Producing | Produced in 2025 | Also produced | Cumulative |
|---|---|---|---|---|---|
| Oil | 7 | 1 | 129 bbl | 0 mcfcasinghead | 75,649 bblsince discovery |
The discovery well's oil measured 36.0° API gravity, perforated at 1,900 ft.
Spacing rule
What the Commission requires of a well on this field.
| Wells | Rule | Effective | From the lease line | Between wells | Acres per unit | Max diagonal |
|---|---|---|---|---|---|---|
| Oil | B | 2018-06-19 | 150 ft | 0 ft | 2 | 0 ft |
Commission remarks: IN THE R 40 EXC. FIELD,SUCH THAT PRORATION UNITS ON A TRACT
County
Leases in this field
Every lease here files this field's number with the Commission and has a page on this site.
| Lease | Operator | Value |
|---|---|---|
| CR RANCH UNIT | NORTH SOUTH OIL, LLC | $2.1 M |
| ELLISON | NORTH SOUTH OIL, LLC | $1.1 M |
| CLARK | NORTH SOUTH OIL, LLC | $483 k |
| YOUNG | NORTH SOUTH OIL, LLC | $173 k |
| KORNFUEHRER | NORTH SOUTH OIL, LLC | $45 k |
| BRANYON-CLARK | BASTROP ENERGY GROUP | — |
Field number 55679100, from the Railroad Commission's field register. The register's own index resolves 8 leases and 37 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.