Oil & Gas Production in Bexar County, TX

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Bexar County, TX Oil and Gas Production Heatmap
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Bexar County, TX Oil and Gas Production By Year
Bexar County, TX Oil and Gas Summary
Based on February 2026 Production

36 Producing Operators

179 Producing Leases On File

1,769 Producing Wells On File

13.6 k Total Wells On File

3.8 k Barrels of Oil Produced

1 MCF of Gas Produced

Top Producing Operators in Bexar County, TX
Based on February 2026 Production
Operator Oil Prod (BBLS) Gas Prod (MCF) Active Leases Active Wells
Aaronmark Services, LLC 1,567 0 40 76
Brander, Sam H. 100 0 4 28
Calfas Oil, LLC 327 0 18 99
Calk Oil Company 216 0 14 74
Calk Operating, LLC 177 0 2 32
Calk, Roger D. 258 0 20 92
Downing Well Service, Inc. 215 0 7 27
Drachen Oil Company 587 1 27 98
Jamco Oil 59 0 2 10
JM Calk Operating, LLC 350 0 5 24
Koko Skadi, LLC 1,158 1,597 47 259
Mandujano, Alfonso, Jr. 70 0 1 5
MDF Oil Company 228 0 1 164
Mojave Resources, LLC 210 0 14 71
Old Chief Oil, LLC 203 0 5 34
Petro Lions, LLC 227 0 17 140
Production Resources, Inc. 911 0 34 452
Raol Company, The 66 0 3 10
Red Chalk Resources LLC 193 0 6 58
Seeker Oil Company, Incorporated 321 0 15 79
Top Producing Leases in Bexar County, TX
Based on February 2026 Production
Lease Operator County Oil Prod (BBLS) Gas Prod (MCF)
Baker Old Chief Oil, LLC Bexar 85 0
Calk, E. W. Calk Operating, LLC Bexar 157 0
Epstein-Balboa -A- Calk, Roger D. Bexar 60 0
Erd Unit JM Calk Operating, LLC Bexar 110 0
Ernst Koko Skadi, LLC Bexar 65 0
Ernst -E- Koko Skadi, LLC Bexar 70 0
Galindo, Fred Calfas Oil, LLC Atascosa 77 0
Garza JM Calk Operating, LLC Bexar 90 0
Hayes, Richard Drachen Oil Company Bexar 78 0
Henry Calfas Oil, LLC Bexar 58 0
Hixon Properties, Inc. MDF Oil Company Bexar 228 0
Jasik, S. Aaronmark Services, LLC Bexar 54 0
Jasik, Stanley J. Aaronmark Services, LLC Bexar 57 0
Kenny, William Pyron Et Ux Production Resources, Inc. Bexar 54 0
Kurz, Bee T., Etal Downing Well Service, Inc. Bexar 52 0
Long Old Chief Oil, LLC Bexar 88 0
Mandujano, Alfonzo Mandujano, Alfonso, Jr. Bexar 70 0
Marpat Production Resources, Inc. Bexar 68 0
Pyron Red Chalk Resources LLC Bexar 173 0
Robertson, Harry Koko Skadi, LLC Bexar 68 0