Texas county · RRC district 03
Grimes County
Grimes County reported 201,195 barrels of oil and 3.7 million mcf of gas in the 12 months through Jul 2026. That ranks 136th of 224 Texas counties by oil.
County dossier · #136 of 224 for oil
- Producing leases
- 179of 291 on record
- Operators
- 17
- Fields
- 20
- Top operator
- CML Exploration, LLC
Own minerals in Grimes County?
Upload a royalty check stub or a phone photo. We compare each month with the Jul 2026 state numbers for the leases below.
Where it sits
This county
- Gas, last 12 months
- 3,746,918 mcf
- Share of Texas oil
- <0.1%
- Leases on record
- 291
- Data through
- Jul 2026
Production
Five years of output in Grimes County
Oil output in Grimes County rose 5% over the last 12 months
201k bbl in the 12 months through Jul 2026, against 192k bbl in the 12 months before. Peak month: Aug 2021, 25.3k bbl.
Gas output in Grimes County fell 13% over the last 12 months
3.7M mcf in the 12 months through Jul 2026, against 4.3M mcf in the 12 months before. Peak month: Aug 2021, 760k mcf.
SourceTexas Railroad Commission, Production Data Query, county totals of every lease. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.
Leases
The biggest leases in Grimes County
13,376bbl oil+3% on the year before
10,152bbl oil−9% on the year before
8,954bbl oil−5% on the year before
8,258bbl oil+2% on the year before
7,573bbl oil+19% on the year before
7,194bbl oil−5% on the year before
6,890bbl oil+23% on the year before
6,682bbl oil−31% on the year before
5,295bbl oil−31% on the year before
4,923bbl oil−29% on the year before
4,818bbl oil−4% on the year before
4,673bbl oil−16% on the year before
4,480bbl oil+22% on the year before
4,394bbl oil−12% on the year before
4,071bbl oil−13% on the year before
94,538mcf gas−2% on the year before
92,395mcf gas+1% on the year before
3,942bbl oil−10% on the year before
3,864bbl oil−17% on the year before
87,266mcf gas−9% on the year before
85,032mcf gas−9% on the year before
3,481bbl oil−8% on the year before
3,420bbl oil−11% on the year before
3,408bbl oil−12% on the year before
3,348bbl oil−6% on the year before
Showing 25 of 150 (the 150 largest of 179 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 Grimes County
Who runs the leases, and what they produce
Operators in Grimes County, by oil
CML Exploration leads
- CML Exploration, LLC22 producing leases here131kbbl
- Wildfire Energy Operating LLC7 producing leases here17.2kbbl
- Trailblazer Energy Resources,llc5 producing leases here13.4kbbl
- Pride Energy Company3 producing leases here12.6kbbl
- Paleo Oil Company LLC5 producing leases here12.3kbbl
- Vess Oil Corporation2 producing leases here4,817bbl
- Magnolia Oil & Gas Operating LLC106 producing leases here3,904bbl
- Proven Natural Resources LLC6 producing leases here2,430bbl
Fields in Grimes County, by oil
Madisonville, W. (Woodbine -A-) leads
- Madisonville, W. (Woodbine -A-)36 producing leases here · District 03 · Field 56599500145kbbl
- Giddings (Austin Chalk-3)90 producing leases here · District 03 · Field 3473350034.5kbbl
- BB (Cockfield)4 producing leases here · District 03 · Field 0466750012.3kbbl
- Iola (Georgetown)2 producing leases here · District 03 · Field 446402752,844bbl
- Aguila Vado (Eagleford)4 producing leases here · District 05 · Field 008705002,132bbl
- Iola (Sub-Clarksville)2 producing leases here · District 03 · Field 446404002,053bbl
- Giddings (Austin Chalk, Gas)26 producing leases here · District 03 · Field 347735501,110bbl
- Fort Trinidad, East (Buda)1 producing lease here · District 03 · Field 32157071268bbl
More operators here
Recent drilling permits in Grimes County
NEVILL AC #1
new drill · horizontal · CML Exploration, LLC · Grimes County
Permit 0918607 · Sep 15, 2026
For owners
Minerals in Grimes County, in plain terms
- Rank by oil
- 136 of 224
- Share of Texas oil
- 0.0%
- Producing leases
- 179
- Operators
- 17
If you inherited mineral rights in Grimes County, the money comes from an operator: the company that drills and runs the wells. Here, the largest is CML Exploration, LLC, among 17 operators with producing leases.
Each lease has a name, a Railroad Commission district and a lease number. Your check stub prints them, or a version of them. Search the name on your stub, open the lease, and compare the “oil sold” and “gas sold” volumes for the month with the barrels and mcf on your stub.
We hold 291 leases in Grimes County, of which 179 reported production recently. The state publishes county totals two to three months late, so Jul 2026 is the newest month.