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Jm Calk Operating, LLC Drilling Permit Activity

Quick answer: Jm Calk Operating, LLC has 7 Texas/Oklahoma drilling permits in the last ten years, 7 of them in the last 12 complete months (— year over year). Its most-permitted county is Bexar (100% of permits) and leading target is Ouachita Folded Belt (85.7%).

7
permits, last 12 complete months
—
vs prior 12 months
7
permits, last 10 years
February 2026
most recent permit month

Permits by year

2025: 3 permits 2025 2026: 4 permits 2026
Jm Calk Operating, LLC drilling permits per year (years with 3+ permits) (permits)
Jm Calk Operating, LLC drilling permits per year (years with 3+ permits)
Periodpermits
20253
20264
YearPermitsMedian lateral (ft)
20253127
20264127

Where it permits

CountyPermitsShare
Bexar (TX)7100%

What it targets

Formation / playPermitsShare
Ouachita Folded Belt685.7%
All other / unclassified1—

Permit-to-production timing

Median permit → spud— days
Median spud → first reported production— days
Permits older than 12 months that were spudded—
Spuds older than 12 months reporting production—
Median lateral, last 24 months vs earlier127 ft vs — ft

Groups with fewer than three permits are folded into "all other". Computed by Valor from public oil and gas data; refreshed weekly. Data as of 2026-09-29.

Using this page

Jm Calk Operating, LLC Permits — FAQ

Jm Calk Operating, LLC has 7 Texas/Oklahoma drilling permits in the last ten years, 7 of them in the last 12 complete months (— year over year). Its most-permitted county is Bexar (100% of permits) and leading target is Ouachita Folded Belt (85.7%).

Across its permits, the median time from permit to spud is — days and from spud to first reported production — days.

Its median lateral on permits from the last 24 months is 127 ft.

No. Valor publishes permit activity as statistics — counts by year, county and formation groupings of three or more permits, lateral trends and cycle times — rather than individual permit records.

These statistics are computed by Valor from public oil and gas data. © Valor, all rights reserved.