Texas field · RRC field 45210500 · District 7B

J. S. Lewis (Marble Falls)

6 producing leases run by 3 operators in 1 Texas county. The field reported 1,177 barrels of oil and 17,275 mcf of gas in the 12 months through Jul 2026.

Field dossier · 1 county

1,177bbl oil, last 12 months−17% vs prior year

Producing leases: 6of 14 on record
Operators: 3
Counties: 1
Biggest operator: Davco Oil LLC

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Where the field sits

This county

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Gas, last 12 months: 17,275 mcf
RRC field no.: 45210500
RRC district: 7B
Data through: Jul 2026

Production

Five years of output in J. S. Lewis (Marble Falls)

Monthly totals across the leases the Railroad Commission assigns to this field.

Oil output in the J. S. Lewis (Marble Falls) field fell 17% over the last 12 months

1,089 bbl in the 12 months through Jul 2026, against 1,319 bbl in the 12 months before. Peak month: Nov 2024, 203 bbl.

Gas output in the J. S. Lewis (Marble Falls) field fell 28% over the last 12 months

15.6k mcf in the 12 months through Jul 2026, against 21.8k mcf in the 12 months before. Peak month: Mar 2022, 2,643 mcf.

SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 45210500. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.

Leases

Leases in the J. S. Lewis (Marble Falls) field

Ranked by last-12-month output. Filter by operator, and open any lease for its month-by-month ledger.

Find a lease in this listOperatorSort

PHILLIPS, J.W.
7B-12707Davco Oil LLCBrown County
1,165bbl oil−18% on the year before
BIBBY, J. C.
7B-152515Southwest Gas Systems, Inc.Brown County
2,051mcf gas+41% on the year before
PITZER, J.E.
7B-093964Otex LLCBrown County
513mcf gas−1% on the year before
PITZER, J.E.
7B-093966Otex LLCBrown County
511mcf gas−1% on the year before
PITZER, J.E.
7B-093965Otex LLCBrown County
511mcf gas−1% on the year before
PHILLIPS "C"
7B-26260Davco Oil LLCBrown County
12bbl oil−8% on the year before

Producing leases in the J. S. Lewis (Marble Falls) field

PHILLIPS, J.W.7B-12707Davco Oil LLCBrown County	1,165bbl oil	−18%
BIBBY, J. C.7B-152515Southwest Gas Systems, Inc.Brown County	2,051mcf gas	+41%
PITZER, J.E.7B-093964Otex LLCBrown County	513mcf gas	−1%
PITZER, J.E.7B-093966Otex LLCBrown County	511mcf gas	−1%
PITZER, J.E.7B-093965Otex LLCBrown County	511mcf gas	−1%
PHILLIPS "C"7B-26260Davco Oil LLCBrown County	12bbl oil	−8%

Showing 6 of 6.

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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 J. S. Lewis (Marble Falls) field

Who operates here, and where

Each operator and county links to its own page, so you can see the rest of what they run.

Operators in this field, by oil

Davco Oil leads

Davco Oil LLC2 producing leases here1,177bbl

Counties in this field, by oil

Brown County leads

Brown County6 producing leases1,177bbl

Recent drilling permits in the J. S. Lewis (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: 45210500
RRC district: 7B
Leases on record: 14
Producing leases: 6

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 J. S. Lewis (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 J. S. Lewis (Marble Falls) field

What is the J. S. Lewis (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 J. S. Lewis (Marble Falls) field is field 45210500 in district 7B, with 6 producing leases in 1 Texas county.

How much does the J. S. Lewis (Marble Falls) field produce?

It reported 1,177 barrels of oil and 17,275 mcf of gas in the 12 months through Jul 2026, from leases run by 3 operators, the largest being Davco Oil 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.

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