Grimes County leases reported 201.2K barrels of oil and 3.7M MCF of gas to the Texas Railroad Commission in the 12 months to Jul 2026, ranking #132 of 219 producing Texas counties by oil-equivalent volume.
201.2KBBL oil, last 12 months▲ 5% vs prior 12
3.7MMCF gas, last 12 months▼ 13% vs prior 12
0new permits, Oct 1–Oct 14
15+top leases listed below
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Grimes County highlighted; dots are its new permits with coordinates.
Grimes County oil + condensate (BBL per month, last 36 months)
Grimes County gas (MCF per month, last 36 months)
Jun 2026 and Jul 2026 are provisional (lighter bars) and usually rise as late reports arrive.
Grimes County production in brief
Grimes County produced 201,195 barrels of oil and condensate and 3,746,918 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 up 5% and gas was down 13%. The highest oil month in the last three years was Sep 2025 at 25,061 barrels. The largest operators by oil-equivalent volume were MAGNOLIA OIL & GAS OPERATING LLC, CML EXPLORATION, LLC and PRIDE ENERGY COMPANY. The top lease by oil was KNOTTS, operated by CML EXPLORATION, LLC, with 31,922 barrels. RRC issued no new drilling permits in Grimes County between October 1 and Oct 14, 2026.
No new permits in this county in the current RRC daily file.
Monthly figures
Month
Oil (BBL)
Gas (MCF)
Leases reporting
Jul 2026 (provisional)
14,053
333,103
284
Jun 2026 (provisional)
15,573
300,338
285
May 2026
16,529
309,629
285
Apr 2026
14,198
290,090
286
Mar 2026
16,414
311,793
288
Feb 2026
15,147
286,301
289
Jan 2026
16,830
321,170
292
Dec 2025
15,715
314,476
292
Nov 2025
14,773
312,840
292
Oct 2025
19,011
316,845
292
Sep 2025
25,061
322,613
292
Aug 2025
17,891
327,720
294
Questions about Grimes County minerals
How do I look up my lease in Grimes 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 Grimes County and click the well. Step by step: how to look up your lease on RRC.
Who are the top operators in Grimes County?
By oil-equivalent volume over the 12 months to Jul 2026: MAGNOLIA OIL & GAS OPERATING LLC (4,093 BBL oil, 2,472,499 MCF gas), CML EXPLORATION, LLC (131,355 BBL oil, 572,106 MCF gas) and PRIDE ENERGY COMPANY (12,625 BBL oil, 146,610 MCF gas). The full list is in the table above.
How are royalties calculated on Grimes 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 16,529 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 Grimes 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.