Texas field · RRC field 12406500 · District 7B
Brown Co. Regular (Marble Falls)
93 producing leases run by 12 operators in 1 Texas county. The field reported 162,466 mcf of gas and 483 barrels of oil in the 12 months through Jul 2026.
Field dossier · 1 county
- Producing leases
- 93of 155 on record
- Operators
- 12
- Counties
- 1
- Biggest operator
- Southwest Gas Systems, Inc.
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
- Oil, last 12 months
- 483 bbl
- RRC field no.
- 12406500
- RRC district
- 7B
- Data through
- Jul 2026
Production
Five years of output in Brown Co. Regular (Marble Falls)
Gas output in the Brown Co. Regular (Marble Falls) field fell 10% over the last 12 months
151k mcf in the 12 months through Jul 2026, against 167k mcf in the 12 months before. Peak month: Sep 2021, 16.9k mcf.
Oil output in the Brown Co. Regular (Marble Falls) field rose 8% over the last 12 months
483 bbl in the 12 months through Jul 2026, against 448 bbl in the 12 months before. Peak month: May 2025, 81 bbl.
SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 12406500. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.
Leases
Leases in the Brown Co. Regular (Marble Falls) field
7,971mcf gas−3% on the year before
6,490mcf gas−1% on the year before
5,989mcf gas−12% on the year before
4,561mcf gas−10% on the year before
4,492mcf gas−10% on the year before
4,425mcf gas−2% on the year before
4,321mcf gas−5% on the year before
4,316mcf gas−12% on the year before
4,264mcf gas−18% on the year before
4,252mcf gas+141% on the year before
3,690mcf gas−8% on the year before
3,621mcf gas+10% on the year before
3,394mcf gas−7% on the year before
3,235mcf gas−1% on the year before
3,135mcf gas−10% on the year before
2,993mcf gas+10% on the year before
2,874mcf gas−44% on the year before
2,715mcf gas−43% on the year before
2,644mcf gas−13% on the year before
2,401mcf gas+8% on the year before
2,387mcf gas+3% on the year before
2,229mcf gas−2% on the year before
2,225mcf gas+8% on the year before
2,104mcf gas+36% on the year before
2,057mcf gas−2% on the year before
Showing 25 of 93.
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 Brown Co. Regular (Marble Falls) field
Who operates here, and where
Operators in this field, by gas
Southwest Gas Systems leads
- Southwest Gas Systems, Inc.56 producing leases here91.2kmcf
- Shady Oil Co.15 producing leases here13.5kmcf
- KLH Oil & Gas, Inc.2 producing leases here9,053mcf
- Paratus Petroleum LLC3 producing leases here8,190mcf
- Creek Energy, Inc.2 producing leases here6,908mcf
- CWC Oil & Gas, LLC2 producing leases here5,138mcf
- Interstate Explorations LLC1 producing lease here4,316mcf
- Pitcock, Inc.2 producing leases here3,947mcf
Counties in this field, by gas
Brown County leads
More operators (number = producing leases here)
Recent drilling permits in the Brown Co. Regular (Marble Falls) 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
- 12406500
- RRC district
- 7B
- Leases on record
- 155
- Producing leases
- 93
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 Brown Co. Regular (Marble Falls) 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 Brown Co. Regular (Marble Falls) field
What is the Brown Co. Regular (Marble Falls) field?
A field is a name and number the Railroad Commission gives to a group of wells that draw from the same reservoir. The Brown Co. Regular (Marble Falls) field is field 12406500 in district 7B, with 93 producing leases in 1 Texas county.
How much does the Brown Co. Regular (Marble Falls) field produce?
It reported 483 barrels of oil and 162,466 mcf of gas in the 12 months through Jul 2026, from leases run by 12 operators, the largest being Southwest Gas Systems, Inc..
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.