Texas field · RRC field 57987666 · District 7B
Mary Opal (Morris Sand)
1 producing lease run by 1 operator in 1 Texas county. The field reported 173 barrels of oil and 1,120 mcf of gas in the 12 months through Jul 2026.
Field dossier · 1 county
- Producing leases
- 1
- Operators
- 1
- Counties
- 1
- Biggest operator
- Sands Energy LLC
Own minerals in this field?
Upload a royalty check stub or a phone photo. We compare each month with the state numbers for your lease and tell you what to ask your operator.
Where the field sits
This county
- Gas, last 12 months
- 1,120 mcf
- RRC field no.
- 57987666
- RRC district
- 7B
- Data through
- Jul 2026
Production
Five years of output in Mary Opal (Morris Sand)
Oil output in the Mary Opal (Morris Sand) field fell 61% over the last 12 months
173 bbl in the 12 months through Jul 2026, against 442 bbl in the 12 months before. Peak month: Jul 2022, 195 bbl.
Gas output in the Mary Opal (Morris Sand) field fell 43% over the last 12 months
1,120 mcf in the 12 months through Jul 2026, against 1,972 mcf in the 12 months before. Peak month: Jun 2022, 980 mcf.
SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 57987666. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.
Leases
Leases in the Mary Opal (Morris Sand) field
173bbl oil−61% on the year before
Showing 1 of 1.
SourceTexas Railroad Commission, Production Data Query. Ranked by an approximate value of last-12-month output, so oil and gas wells sort together.
In the Mary Opal (Morris Sand) field
Who operates here, and where
Operators in this field, by oil
Sands Energy leads
Counties in this field, by oil
Coleman County leads
Recent drilling permits in the Mary Opal (Morris Sand) field
No recent drilling permits in this field are in our data yet.
For owners
What a field is, and why it matters to your check
- RRC field number
- 57987666
- RRC district
- 7B
- Leases on record
- 1
- Producing leases
- 1
The Railroad Commission assigns each lease to a field: the underground pool or formation it produces from. A field can cross county lines and hold leases from many operators. Leases in the same field often move together, because they draw on the same rock.
That makes the field a fair yardstick. If your lease fell sharply and the rest of Mary Opal (Morris Sand) did not, that is worth a question to your operator. If the whole field fell, the cause is probably geology or price, not your check.
The field trend above sums every lease in the field, so it is a good comparison for the lease page of any lease listed here.
FAQ
Questions about the Mary Opal (Morris Sand) field
What is the Mary Opal (Morris Sand) field?
A field is a name and number the Railroad Commission gives to a group of wells that draw from the same reservoir. The Mary Opal (Morris Sand) field is field 57987666 in district 7B, with 1 producing lease in 1 Texas county.
How much does the Mary Opal (Morris Sand) field produce?
It reported 173 barrels of oil and 1,120 mcf of gas in the 12 months through Jul 2026, from leases run by 1 operator, the largest being Sands Energy LLC.
Can I use the field to check my own royalty?
If your stub names a lease in this field, the field trend shows whether output fell everywhere or only on your lease. A drop across the whole field usually comes from price or reservoir decline, so ask the operator about your lease only when it fell alone.
How current are these numbers?
The state publishes lease production two to three months after the month it covers, so Jul 2026 is the newest month here.
Keep going
More Texas data
- Texas dataTexas fields, A to ZEvery field with producing leases in Railroad Commission records.
- Texas dataTexas operators, A to ZEvery operator with producing leases, and its report card.
- ToolWhy is my royalty check lower?Splits a drop into volume, price, deductions and your share.
- CheckCheck my royalty statementUpload a stub and we compare each month with the state record.