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Texas oil lease

Producing

ZAVISCH -A-

Zavisch -A- is an oil lease in McMullen County, Texas, operated by GTG Operating, LLC in the A.w.p. (Olmos) field.

8 wells

1,779bbl oil, last 12 months−27% vs prior year
RRC lease
01-14506

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Where it sits

This county

McMullen CountyMcMullenLa SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
997 mcf
Oil in Jun 2026
417 bbl

Production by month

Oil output fell 27% over the last 12 months

Jul 2026 was not reported.

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 27% over the last 12 monthsMonthly oil production and gas for ZAVISCH -A-, Aug 2023 to Jul 2026. Oil output fell 27% over the last 12 months. 1,664 bbl in the 12 months through Jul 2026, against 2,276 bbl in the 12 months before.Last 12 months: 1,664 bblbbl per monthmcf per month001002502005003007504001,0005001,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 27% over the last 12 monthsMonthly oil production and gas for ZAVISCH -A-, Aug 2023 to Jul 2026. Oil output fell 27% over the last 12 months. 1,664 bbl in the 12 months through Jul 2026, against 2,276 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001002502005003007504001,0005001,250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Jun 2026 the lease's gas goes to lease fuel instead of a transmission line

  • Transmission line (2)
  • Lease fuel (1)
Since Jun 2026 the lease's gas goes to lease fuel instead of a transmission lineShare of ZAVISCH -A- gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2026 the lease's gas goes to lease fuel instead of a transmission line.Share of the lease’s gas by disposition code, per month0%50%100%Jun 2026: line to fuelOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jun 2026 the lease's gas goes to lease fuel instead of a transmission lineShare of ZAVISCH -A- gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2026 the lease's gas goes to lease fuel instead of a transmission line.Share of gas by disposition code0%50%100%Jun 26: line to fuelJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Lease fuel (1)

    57% · 566 mcf

  • Transmission line (2)

    43% · 431 mcf

Who has run this lease

The operator changed once, most recently in May 2020

Operators of this lease over timeClearly Petroleum, LLC, Jan 2020 to Apr 2020; GTG Operating, LLC, May 2020 to Jun 20262020202120222023202420252026Changed May 2020Clearly Petroleum, LLCJan 2020 to Apr 2020GTG Operating, LLCMay 2020 to now
Operators of this lease over timeClearly Petroleum, LLC, Jan 2020 to Apr 2020; GTG Operating, LLC, May 2020 to Jun 20262020202120222023202420252026Changed May 2020Clearly Petroleum, LLCJan 2020 to Apr 2020GTG Operating, LLCMay 2020 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

8 wells on this lease

Wells on ZAVISCH -A-
API numberWell no.Status
42-311-337257Active
42-311-33885A 8Active
42-311-33886A 9Shut-in
42-311-33899A 10Active
42-311-3524812Active
42-311-3538511Active
42-311-3538915Active
42-311-35639A 14Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Gulfmark Energy, Inc.OilGathers100Mar 1, 2020–
Upstream Energy ServicesCasinghead gasBuys100Mar 1, 2020–
Energy Transfer CompanyCasinghead gasGathers50Mar 1, 2020–
Enterprise Products Operating LLCCasinghead gasGathers50Mar 1, 2020–
Houston Pipe Line Company LPCasinghead gasGathers100Apr 15, 2015Mar 1, 2020
Houston Pipe Line Company LPCasinghead gasBuys100Apr 15, 2015Mar 1, 2020
First River Energy, LLCOilGathers10Oct 1, 2016Mar 1, 2020
Shell Trading (Us) CompanyOilGathers90Apr 15, 2015Mar 1, 2020

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

320 acres on the newest permit

  • Good to know

    A pooling certificate (P-12) was filed

    Your tract may share its production with neighbors in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.

  • Good to know

    9 wells are listed on this lease

    Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

Check your decimal on this lease
Permits for Zavisch -A-
API numberWell no.Acreson the permit
42-311-35639A 14320
42-311-3538915320
42-311-3538511320
42-311-3524812320
42-311-33899A 10320
42-311-33885A 8320
42-311-33886A 6320
42-311-33886A 9320
42-311-337257320

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Estimate your royalty

36 months, newest first

Ledger for ZAVISCH -A-
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026No report–––––$80.46$2.89
Jun 2026GTG Operating,41714710280$84.81$3.15
May 2026GTG Operating,18213654420$102.13$2.94
Apr 2026GTG Operating,114105101340$100.32$2.77
Mar 2026GTG Operating,21536450300$91.38$3.04
Feb 2026GTG Operating,9904200$64.51$3.62
Jan 2026GTG Operating,132177200$60.04$7.72
Dec 2025GTG Operating,9301700$57.97$4.26
Nov 2025GTG Operating,1511813300$60.06$3.79
Oct 2025GTG Operating,811771231000$60.89$3.19
Sep 2025GTG Operating,102096810$63.96$2.97
Aug 2025GTG Operating,78181241810$64.86$2.91
Jul 2025GTG Operating,1150136550$68.39$3.20
Jun 2025GTG Operating,1811781361200$68.17$3.02
May 2025GTG Operating,2923641241120$62.17$3.12
Apr 2025GTG Operating,157173107760$63.54$3.42
Mar 2025GTG Operating,9101281080$68.24$4.12
Feb 2025GTG Operating,4995413523140$71.53$4.19
Jan 2025GTG Operating,1285411861730$75.74$4.13
Dec 2024GTG Operating,14301631500$70.12$3.01
Nov 2024GTG Operating,1851842692620$69.95$2.12
Oct 2024GTG Operating,1625363052990$71.99$2.20
Sep 2024GTG Operating,17903583250$70.24$2.28
Aug 2024GTG Operating,144092890$76.68$1.99
Jul 2024GTG Operating,2143603241800$81.80$2.07
Jun 2024GTG Operating,1721754871390$79.77$2.54
May 2024GTG Operating,217182552740$80.02$2.12
Apr 2024GTG Operating,25715422630$85.35$1.60
Mar 2024GTG Operating,2753617231480$81.28$1.49
Feb 2024GTG Operating,3801855132160$77.25$1.72
Jan 2024GTG Operating,11405222160$74.15$3.18
Dec 2023GTG Operating,1811771,2264770$71.90$2.52
Nov 2023GTG Operating,1133705545340$77.69$2.71
Oct 2023GTG Operating,12807875300$85.64$2.98
Sep 2023GTG Operating,1531777876940$89.43$2.64
Aug 2023GTG Operating,1421727533830$81.39$2.58

No report filed

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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GTG Operating, LLC in McMullen County

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