CECILIA (MARMATON), District 10, 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 5 leases in this field that have a page here — 63% 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 | 2 | 2 | 2,165 bbl | 25,323 mcfcasinghead | 112,661 bblsince discovery |
| Gas | 2 | 1 | 43,570 mcf | 0 bblcondensate | 4,676,459 mcfsince 1970 |
The discovery well's oil measured 35.0° API gravity, perforated at 5,646 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 |
|---|---|---|---|---|---|---|
| Gas | B | 1989-02-06 | 467 ft | 933 ft | 320 | 2,100 ft |
| Oil | B | 1989-03-01 | 467 ft | 933 ft | 40 | 2,100 ft |
Commission remarks: REVIEW HEARING AUGUST 1990
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 |
|---|---|---|
| RIFFE | BURK ROYALTY CO., LTD. | $7.7 M |
| CECILIA A | BURK ROYALTY CO., LTD. | $3.2 M |
| RIFFE | BURK ROYALTY CO., LTD. | $3.1 M |
| CECILIA -A- | PHILLIPS PETROLEUM COMPANY | $84 k |
| JARMER | PHILLIPS PETROLEUM COMPANY | $985 |
Field number 16526500, from the Railroad Commission's field register. The register's own index resolves 8 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.