Callahan County leases reported 59.8K barrels of oil and 255.9K MCF of gas to the Texas Railroad Commission in the 12 months to Jul 2026, ranking #187 of 219 producing Texas counties by oil-equivalent volume.
59.8KBBL oil, last 12 months▼ 19% vs prior 12
255.9KMCF gas, last 12 months▼ 22% vs prior 12
0new permits, Oct 1–Oct 14
15+top leases listed below
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Callahan County highlighted; dots are its new permits with coordinates.
Callahan County oil + condensate (BBL per month, last 36 months)
Callahan County gas (MCF per month, last 36 months)
Jun 2026 and Jul 2026 are provisional (lighter bars) and usually rise as late reports arrive.
Callahan County production in brief
Callahan County produced 59,785 barrels of oil and condensate and 255,938 MCF of gas in the 12 months from Aug 2025 to Jul 2026, about 0.0% of Texas oil and 0.0% of Texas gas on our county figures. Compared with the previous 12 months, oil was down 19% and gas was down 22%. The highest oil month in the last three years was Mar 2024 at 7,483 barrels. The largest operators by oil-equivalent volume were PETEX, MOMENTUM OPERATING CO., INC. and GRAYROCK ENERGY II, LLC. The top lease by oil was PECAN BAYOU /COOK SAND/ UNIT, operated by MOMENTUM OPERATING CO., INC., with 4,714 barrels. RRC issued no new drilling permits in Callahan County between October 1 and Oct 14, 2026.
Top leases, last 12 months
Lease
Operator
Field
Oil (BBL)
Gas (MCF)
PECAN BAYOU /COOK SAND/ UNIT
MOMENTUM OPERATING CO., INC.
PECAN BAYOU (COOK SAND)
4,714
0
ACKERS "80"
GRAYROCK ENERGY II, LLC
GUITAR (GARDNER SAND)
4,576
1,246
BOX, I. H.
D.J. & T. ENERGY
BOX (PALO PINTO)
3,651
0
BARNARD
NOSIVAD OIL, INC.
NOSIVAD (COOK SAND 1700)
3,442
0
RUDLOFF, JOHN
WILSON WELL SERVICE INC.
CALLAHAN COUNTY REGULAR
2,490
0
MCCOLLUM, E. W. -A-
BRAKA OPERATING, L.L.C.
PERKINS (CADDO)
2,265
0
FRANKE, WM.
SIMPLE OPERATING LLC
CALLAHAN COUNTY REGULAR
2,114
0
LYTLE GAP (COOK SAND) UNIT
MOMENTUM OPERATING CO., INC.
LYTLE GAP (COOK, UPPER)
2,023
0
WINDHAM, JAMES T.
3 S PRODUCTION, INC.
GRAND OLD OPLIN (GRAY)
1,908
4,236
LAREATA
HESS, JERRY OPERATING CO.
JOE PAT (GARDNER SAND)
1,890
6,413
SNYDER-SEALES
TOM-TOM OPERATING, LLC
CALLAHAN COUNTY REGULAR
1,694
0
BETCHER
SANDS ENERGY LLC
GRAND OLD OPLIN (GRAY)
1,541
0
BETCHER, ALBERT
MISSION ENERGY INC.
TURNAROUND (GRAY SAND)
1,383
0
DAVIS, S. M.
MERKAZ DRILLING, LLC
CALLAHAN COUNTY REGULAR
1,302
0
MILLIORN, W. E.
3 S PRODUCTION, INC.
MILLIORN
1,242
0
Top operators, last 12 months
Operator
Leases
Oil (BBL)
Gas (MCF)
PETEX
9
1,617
172,596
MOMENTUM OPERATING CO., INC.
13
6,872
0
GRAYROCK ENERGY II, LLC
10
6,411
1,246
3 S PRODUCTION, INC.
8
4,076
8,838
HESS, JERRY OPERATING CO.
3
2,563
10,205
NOSIVAD OIL, INC.
3
3,682
0
D.J. & T. ENERGY
9
3,651
0
EASTLAND OPERATING, L.L.C.
9
944
14,791
BRAKA OPERATING, L.L.C.
3
2,960
0
WILSON WELL SERVICE INC.
5
2,700
0
New drilling permits this month
No new permits in this county in the current RRC daily file.
Monthly figures
Month
Oil (BBL)
Gas (MCF)
Leases reporting
Jul 2026 (provisional)
4,581
18,112
280
Jun 2026 (provisional)
4,307
19,947
284
May 2026
5,053
20,592
285
Apr 2026
5,169
23,247
293
Mar 2026
5,530
24,488
296
Feb 2026
4,315
18,537
297
Jan 2026
4,098
20,814
297
Dec 2025
5,257
21,327
299
Nov 2025
5,063
20,436
299
Oct 2025
5,421
22,493
299
Sep 2025
5,454
21,990
299
Aug 2025
5,537
23,955
301
Questions about Callahan County minerals
How do I look up my lease in Callahan County?
Find the RRC lease number on your check stub, then search it on our lease search or in the RRC Production Data Query using district and lease number. Without a number, open the RRC GIS viewer, go to Callahan County and click the well. Step by step: how to look up your lease on RRC.
Who are the top operators in Callahan County?
By oil-equivalent volume over the 12 months to Jul 2026: PETEX (1,617 BBL oil, 172,596 MCF gas), MOMENTUM OPERATING CO., INC. (6,872 BBL oil, 0 MCF gas) and GRAYROCK ENERGY II, LLC (6,411 BBL oil, 1,246 MCF gas). The full list is in the table above.
How are royalties calculated on Callahan County production?
A gross royalty is roughly (oil volume × oil price + gas volume × gas price) × your decimal interest. Your decimal is on your check stub or division order. County production in May 2026 was 5,053 BBL of oil; try your own lease in the royalty estimator. Severance tax and any deductions your lease allows reduce the check.
How do I sell mineral rights in Callahan County?
Start with the production history of your lease on its page here, then compare several offers on the same basis (price per net mineral acre or a multiple of monthly royalty). Recent permits in the county (0 so far this month) can matter to buyers. See how to sell mineral rights. We are not a buyer or broker.
Source: Texas Railroad Commission (data sets, Production Data Query). Data date: RRC Production Data Query dump, extract dated Sep 18, 2026; production through Jul 2026. Jun 2026 and Jul 2026 are provisional: operators file late and amend, so these months usually rise in later releases. Oil = crude oil + condensate (BBL); gas = gas-well gas + casinghead gas (MCF), as reported to RRC. RRC notes county-level figures are allocated estimates based on allowables and potentials. Methodology.