RRC operator 433073
JM Calk Operating, LLC
JM Calk Operating, LLC reported 2,824 barrels of oil in the last 12 months.
Operator dossier
- Producing leases
- 6of 7 on record
- Counties
- 2
- Biggest county
- Bexar County
- Biggest field
- Fairfield
Get checks from JM Calk Operating, LLC?
Where they work
fewermore
- Fields
- 2
- Data through
- Jul 2026
Five years of JM Calk Operating, LLC output
Oil output from JM Calk Operating, LLC fell 48% over the last 12 months
2,824 bbl through Jul 2026, against 5,412 bbl a year earlier. Peak Feb 2023: 807 bbl.
SourceTexas Railroad Commission Production Data Query, operator 433073, through Jul 2026, file dated Sep 18, 2026.
JM Calk Operating, LLC leases, biggest first
Under each volume: change on the year before.
- ERD UNIT
01-17671Bexar CountyFairfield
1,144bbl oil+45%
- GARZA
01-18222Bexar CountyFairfield
752bbl oil+323%
- BROWN
01-17934Bexar CountyFairfield
530bbl oil−9%
251bbl oil−78%
- HAECKER
01-17533Bexar CountyFairfield
207bbl oil−32%
14bbl oil−65%
Showing 6 of 6.
SourceTexas Railroad Commission Production Data Query.
Counties and fields where JM Calk Operating, LLC produces
Counties, by JM Calk Operating, LLC oil
Bexar County leads
Fields, by JM Calk Operating, LLC oil
Fairfield leads
Recent drilling permits for JM Calk Operating, LLC
ERD UNIT #15
new drill · JM Calk Operating, LLC · Bexar County
Permit 0913507 · Feb 19, 2026
ERD UNIT #14
new drill · JM Calk Operating, LLC · Bexar County
Permit 0913506 · Feb 19, 2026
ERD UNIT #13
new drill · JM Calk Operating, LLC · Bexar County
Permit 0913484 · Feb 18, 2026
ERD UNIT #12
new drill · JM Calk Operating, LLC · Bexar County
Permit 0913198 · Feb 13, 2026
ERD UNIT #8
new drill · JM Calk Operating, LLC · Bexar County
Permit 0912107 · Dec 15, 2025
ERD UNIT #7
new drill · JM Calk Operating, LLC · Bexar County
Permit 0912106 · Dec 15, 2025