OPERATORS · TEXAS · P-5 NUMBER 537025
Mazco Energy LLC
- P-5 status
- Active – Extension (X)RRC P-5 file of Oct 22, 2026
- P-5 last filed
- Jan 21, 2026
- Based in
- San Antonio, TX
Mazco Energy LLC has filed no drilling permits in the past 12 months; its most recent permit was issued April 11, 2024.
The RRC wellbore file lists 105 wells under its operatorship (31 producing, 4 shut in).
Lease reports credit it with 19K barrels of oil and 2.62K mcf of gas in the 12 months reported through August 2026, down 6% on the year before.
It holds 4 active disposal or injection permits, injecting 172K barrels in the 12 months reported through September 2025.
1 drilling permits have been issued to this operator number since 2024; its P-5 organization report was last filed January 21, 2026.
- 0
- permits, last 12 months
- —
- vs prior 12 months (0)
- 0
- counties, 12 months
- 31
- producing wells, of 116 of record
- 17
- leases it reports
- —
- horizontal, 12 months
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 14, 2026
Permits issued by month
LAST 60 MONTHS · BY ISSUE DATE
Last 12 months 0 · prior 12 0
Counties
Counties by permits in the last 12 months, with all-time permits and current wells of record there.
All 1 permits, searchable → · Leases it reported on → · On the map →
Formations in wells it permitted
Tops reported on completion filings for wells permitted under this operator number, including wells others run today. RRC wellbore file. About tops →
| Formation | Wells | Permitted last 3 yrs |
|---|---|---|
| No completion tops on file. | ||
Production by month
PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026
Barrels on leases where this operator filed the production report. Lease-level by design; the latest months are revised upward as late reports arrive. From 17 leases it reported on.How production is reported →
- 19K
- bbl oil, last 12 reported months
- -6%
- vs the 12 months before
- 2.62K
- mcf gas incl. casinghead, last 12
- 151K
- bbl oil since reporting began
12 months through Aug 2026 19,023 · prior 12 20,310(-6%)
Mazco Energy LLC: Oil by month.
Beyond the permit record
RRC wellbore file
Wells of record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 6.53K
- permitted bbl/day, active
- 172K
- bbl injected, last 12 reported months
- Sep 2025
- reported through
By county
| Atascosa | 4 active | 6.53K bbl/d |
All 4 permits, with volumes → · On the map →
Permitted volume is a ceiling, not throughput. How to read it →
Operator of record and permit operator
A well's operator of record is the RRC's, and its permit operator is the one on its latest drilling permit; neither fills in for the other. Its wellbores of record are counted as its wells, with its live permits; a well it permitted that another operator runs, or that the RRC lists with no operator at all, is not. Each count opens the wells it counts. Transfers and operator numbers →
Permit types
Last 12 months against the prior 12, and all time. A type opens the permit history filtered to it. What the types mean →
| Type | 12 mo | Prior 12 | All time |
|---|---|---|---|
| Reenter | 0 | 0 | 1 |
Fields
RRC regulatory fields with the most wells of record under this operator. The field opens its page; the count opens this operator's wells in it.
| Field | Wells | Producing |
|---|---|---|
| Crown E. (Navarro)22011500 | 30 | 6 |
| Pruitt SE. (Olmos)73320500 | 28 | 3 |
| Pleasanton S. (Carrizo Sand)71926250 | 20 | 8 |
| Stacy (Olmos -A-)85457500 | 10 | 3 |
| Jourdanton (Recklaw)47358700 | 8 | 5 |
| Pleasanton E. (Escondido)71923333 | 4 | 3 |
| Pleasanton South (Edwards Lime)71926500 | 1 | 1 |
| Pleasanton S. (Anacacho)71926125 | 1 | 0 |
| Pleasanton S. (Sparta)71926875 | 1 | 1 |
| Pleasanton S. (Queen City)71926750 | 1 | 1 |
| Pleasanton S. (Edwards)71926375 | 1 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status Active – Extension (X)
- RRC P-5 file of Oct 22, 2026
- Last filed Jan 21, 2026
- Oil operator
- Address
- 9423 Cinchona Trail
- San Antonio, TX 78266
- (210) 460-9481
- Officers and agents
- Mazurek, Patrick · Manager
- Mazurek, Sharon · Filing Agent
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
About this data
Registration from the RRC P-5 organization file, loaded when the Commission posts a new one. Permits from the OGA049M master and daily daf420 files; wells of record from the EWA wellbore schedule; production from PDQ lease reports by the operator that filed them, through the statewide reported-through month; disposal from UIC permits and H-10 reports. Oil includes condensate from gas leases and gas includes casinghead gas from oil leases, as the RRC totals them. Summary figures are rebuilt nightly. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/operators/tx/537025, documented in the API reference.