ANN MAG (7800), District 04, 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 7 leases in this field that have a page here — 78% of the register's 9 — 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 | 0 | 0 | 0 bbl | 0 mcfcasinghead | 4,441 bblsince discovery |
| Gas | 2 | 1 | 6,004 mcf | 120 bblcondensate | 676,468 mcfsince 1970 |
The discovery well's oil measured 39.8° API gravity, perforated at 7,807 ft.
Spacing rule
What the Commission requires of a well on this field.
Commission remarks: ALLOCATION FORMULA EFFECTIVE 02/01/2024.
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 |
|---|---|---|
| RUPP-CHAMBERLAIN A | PALEO OIL COMPANY LLC | $2.0 M |
| CHAMBERLAIN HIGH | MAGUIRE OIL COMPANY | $162 k |
| RUPP HIGH | MAGUIRE OIL COMPANY | $82 k |
| RUPP | MAGUIRE OIL COMPANY | $63 k |
| SULLIVAN, D.J. | PALEO OIL COMPANY LLC | $61 k |
| RUPP | MAGUIRE OIL COMPANY | $44 k |
| SULLIVAN "F" | MAGUIRE OIL COMPANY | $29 k |
Field number 02971638, from the Railroad Commission's field register. The register's own index resolves 9 leases and 9 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.