Texas field · RRC field 54928500 · District 01
Lorenzo (Austin Chalk)
362 producing leases run by 20 operators in 6 Texas counties. The field reported 16 million barrels of oil and 122 million mcf of gas in the 12 months through Jul 2026.
Field dossier · 6 counties
- Producing leases
- 362of 440 on record
- Operators
- 20
- Counties
- 6
- Biggest operator
- SM Energy Company
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
fewermore
- Gas, last 12 months
- 121,501,363 mcf
- RRC field no.
- 54928500
- RRC district
- 01
- Data through
- Jul 2026
Production
Five years of output in Lorenzo (Austin Chalk)
Oil output in the Lorenzo (Austin Chalk) field rose 3% over the last 12 months
16M bbl in the 12 months through Jul 2026, against 16M bbl in the 12 months before. Peak month: Oct 2025, 1.5M bbl.
Gas output in the Lorenzo (Austin Chalk) field rose 6% over the last 12 months
121M mcf in the 12 months through Jul 2026, against 114M mcf in the 12 months before. Peak month: Nov 2025, 11M mcf.
SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 54928500. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.
Leases
Leases in the Lorenzo (Austin Chalk) field
516,224bbl oilno full prior year
323,698bbl oil+76% on the year before
271,835bbl oilno full prior year
167,472bbl oilno full prior year
138,836bbl oilno full prior year
118,960bbl oil−28% on the year before
116,183bbl oilno full prior year
111,656bbl oilno full prior year
109,956bbl oil+125% on the year before
100,127bbl oil+5% on the year before
85,033bbl oilno full prior year
84,564bbl oilno full prior year
1,823,622mcf gasno full prior year
1,661,378mcf gas−20% on the year before
1,648,702mcf gasno full prior year
69,424bbl oilno full prior year
- CODIGO
01-300489EOG Resources, Inc.Webb County
1,435,448mcf gasno full prior year
1,432,649mcf gasno full prior year
- CODIGO
01-300483EOG Resources, Inc.Webb County
1,418,063mcf gasno full prior year
- CODIGO
01-300484EOG Resources, Inc.Webb County
1,391,320mcf gasno full prior year
1,390,739mcf gasno full prior year
- SPR
01-20924Jonah Energy LLCDimmit County
57,345bbl oilno full prior year
1,321,196mcf gasno full prior year
1,280,201mcf gasno full prior year
54,764bbl oilno full prior year
Showing 25 of 150 (the 150 largest of 362 producing leases).
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 Lorenzo (Austin Chalk) field
Who operates here, and where
Operators in this field, by oil
SM Energy leads
- SM Energy Company194 producing leases here7.7Mbbl
- Crescent Energy Operating, LLC54 producing leases here2.8Mbbl
- Rosewood Resources, Inc.15 producing leases here972kbbl
- Lewis Petro Properties, Inc.23 producing leases here925kbbl
- Javelin Energy Partners Mgmt LLC16 producing leases here903kbbl
- Rosetta Resources Operating LP11 producing leases here799kbbl
- EOG Resources, Inc.14 producing leases here723kbbl
- TBM Catarina, LLC4 producing leases here373kbbl
Counties in this field, by oil
Webb County leads
More operators (number = producing leases here)
Recent drilling permits in the Lorenzo (Austin Chalk) field
BRISCOE R (SA44) #0179H
new drill · horizontal · SM Energy Company · Webb County
Permit 0918654 · Sep 22, 2026
BRISCOE R (SA43) #0169H
new drill · horizontal · SM Energy Company · Webb County
Permit 0918653 · Sep 18, 2026
BRISCOE R (SA41) #0159H
new drill · horizontal · SM Energy Company · Webb County
Permit 0918652 · Sep 18, 2026
BRISCOE R (SA39) #0149H
new drill · horizontal · SM Energy Company · Webb County
Permit 0918651 · Sep 18, 2026
LOMA BLANCA #202H
new drill · horizontal · Fasken Oil and Ranch, Ltd. · Webb County
Permit 0918518 · Sep 17, 2026
LOMA BLANCA #201H
new drill · horizontal · Fasken Oil and Ranch, Ltd. · Webb County
Permit 0918517 · Sep 17, 2026
For owners
What a field is, and why it matters to your check
- RRC field number
- 54928500
- RRC district
- 01
- Leases on record
- 440
- Producing leases
- 362
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 Lorenzo (Austin Chalk) 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 Lorenzo (Austin Chalk) field
What is the Lorenzo (Austin Chalk) field?
A field is a name and number the Railroad Commission gives to a group of wells that draw from the same reservoir. The Lorenzo (Austin Chalk) field is field 54928500 in district 01, with 362 producing leases in 6 Texas counties.
How much does the Lorenzo (Austin Chalk) field produce?
It reported 16 million barrels of oil and 122 million mcf of gas in the 12 months through Jul 2026, from leases run by 20 operators, the largest being SM Energy Company.
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.