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Texas oil lease

No report in 6+ months

TARZAN "A" CALLAWAY

Tarzan "A" Callaway is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

1 well

0bbl oil, last 12 months
RRC lease
08-35924

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County
Oil in Jan 2026
0 bbl
Reporting since
Jan 2020

Checks stopped on this lease?

  • Operator

    Operator changed: Diamondback E&P LLC took over from Endeavor Energy Resources L.P. in Jan 2025.

  • Buyer

    Buyer changed: ETC GAS PROCESSING, LLC replaced WTG GAS PROCESSING, L.P. as the buyer of this lease's gas from oil wells on Aug 1, 2025.

  • Sales

    No sales reported for the last 12 months of state data (through Jul 2026).

  • Wells

    The one well on this lease is marked plugged.

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

See why checks stop on this lease

Production by month

No oil produced in the last 12 months

5 months were not reported.

  • Oil (bars)
  • Gas (line)
  • Last 12 months
No oil produced in the last 12 monthsMonthly oil production and gas for TARZAN "A" CALLAWAY, Feb 2023 to Jan 2026. No oil produced in the last 12 months. The last month with output was Oct 2023, at 26 bbl.Last 12 months: 0 bblbbl per monthmcf per month0020540106015802010025Apr 23JulOctJan 24AprJulOctJan 25AprJulOctJan 26
No oil produced in the last 12 monthsMonthly oil production and gas for TARZAN "A" CALLAWAY, Feb 2023 to Jan 2026. No oil produced in the last 12 months. The last month with output was Oct 2023, at 26 bbl.Last 12 monthsbbl per monthmcf per month0020540106015802010025Jul 23Jan 24JulJan 25JulJan 26

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

All of the gas went to a processing plant in the 3 months reported

All of the gas went to a processing plant in the 3 months reportedShare of TARZAN "A" CALLAWAY gas by disposition code each month, Feb 2023 to Jan 2026. All of the gas went to a processing plant in the 3 months reported.Share of the lease’s gas by disposition code, per month0%50%100%Apr 23JulOctJan 24AprJulOctJan 25AprJulOctJan 26
All of the gas went to a processing plant in the 3 months reportedShare of TARZAN "A" CALLAWAY gas by disposition code each month, Feb 2023 to Jan 2026. All of the gas went to a processing plant in the 3 months reported.Share of gas by disposition code0%50%100%Jul 23Jan 24JulJan 25JulJan 26

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Who has run this lease

The operator changed 3 times, most recently in Jan 2025

Operators of this lease over timeEncana Oil & Gas(usa) Inc., Jan 2020 to Jan 2020; Ovintiv USA Inc., Feb 2020 to Apr 2020; Endeavor Energy Resources L.P., May 2020 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jan 20262020202120222023202420252026Changed Feb 2020Changed May 2020Changed Jan 2025Encana Oil & Gas(usa) Inc.Jan 2020 to Jan 2020Ovintiv USA Inc.Feb 2020 to Apr 2020Endeavor Energy Resources L.P.May 2020 to Dec 2024Diamondback E&P LLCJan 2025 to now
Operators of this lease over timeEncana Oil & Gas(usa) Inc., Jan 2020 to Jan 2020; Ovintiv USA Inc., Feb 2020 to Apr 2020; Endeavor Energy Resources L.P., May 2020 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jan 20262020202120222023202420252026Changed Feb 2020Changed May 2020Changed Jan 2025Encana Oil & Gas(usa) Inc.Jan 2020 to Jan 2020Ovintiv USA Inc.Feb 2020 to Apr 2020Endeavor Energy Resources L.P.May 2020 to Dec 2024Diamondback E&P LLCJan 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on TARZAN "A" CALLAWAY
API numberWell no.Status
42-317-341873407Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Explore Logistics LLCOilGathers100Aug 1, 2025–
Etc Gas Processing, LLCCasinghead gasBuys100Aug 1, 2025–
Energy Transfer CompanyCasinghead gasGathers100Aug 1, 2025–
Wtg Gas Processing, L.p.Casinghead gasGathers100Mar 1, 2016Aug 1, 2025
Wtg Gas Processing, L.p.Casinghead gasBuys100Mar 1, 2016Aug 1, 2025
Oasis Transp & Marketing Corp.OilGathers100Jun 1, 2020Aug 1, 2025
Bml, Inc. BOilGathers100Jun 1, 2018Jun 1, 2020

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

320 acres on the newest permit

  • Good to know

    All listed wells are plugged

    The RRC wellbore records mark all listed wells as plugged. These records do not show whether earlier royalties remain payable. Ask the payor about any unpaid months.

Check your decimal on this lease
Permits for Tarzan "A" Callaway
API numberWell no.Acreson the permit
42-317-341873407320

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

What Diamondback Energy, Inc. told investors it received

Diamondback E&P LLC is linked to Diamondback Energy, Inc. (FANG).
Realized prices reported by Diamondback Energy, Inc.
QuarterOil$ per bblFiling
Q2 2026$96.82SEC filing
Q1 2026$73.47SEC filing
Q4 2025$58.00SEC filing
Q3 2025$64.60SEC filing
Q2 2025$63.23SEC filing
Q1 2025$70.95SEC filing

SourceDiamondback Energy, Inc. quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for TARZAN "A" CALLAWAY
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jan 2026Diamondback E&P00000$60.04$7.72
Dec 2025Diamondback E&P00000$57.97$4.26
Nov 2025Diamondback E&P00000$60.06$3.79
Oct 2025Diamondback E&P00000$60.89$3.19
Sep 2025Diamondback E&P00000$63.96$2.97
Aug 2025Diamondback E&P00000$64.86$2.91
Jul 2025Diamondback E&P00000$68.39$3.20
Jun 2025Diamondback E&P00000$68.17$3.02
May 2025Diamondback E&P00000$62.17$3.12
Apr 2025Diamondback E&P00000$63.54$3.42
Mar 2025Diamondback E&P00000$68.24$4.12
Feb 2025Diamondback E&P00000$71.53$4.19
Jan 2025Diamondback E&P00000$75.74$4.13
Dec 2024Endeavor Energy00000$70.12$3.01
Nov 2024Endeavor Energy00000$69.95$2.12
Oct 2024No report–––––$71.99$2.20
Sep 2024No report–––––$70.24$2.28
Aug 2024No report–––––$76.68$1.99
Jul 2024No report–––––$81.80$2.07
Jun 2024No report–––––$79.77$2.54
May 2024Endeavor Energy00000$80.02$2.12
Apr 2024Endeavor Energy00000$85.35$1.60
Mar 2024Endeavor Energy00000$81.28$1.49
Feb 2024Endeavor Energy00000$77.25$1.72
Jan 2024Endeavor Energy00000$74.15$3.18
Dec 2023Endeavor Energy00000$71.90$2.52
Nov 2023Endeavor Energy00000$77.69$2.71
Oct 2023Endeavor Energy2626000$85.64$2.98
Sep 2023Endeavor Energy22000$89.43$2.64
Aug 2023Endeavor Energy13172000$81.39$2.58
Jul 2023Endeavor Energy11000$76.07$2.55
Jun 2023Endeavor Energy212000$70.25$2.18
May 2023Endeavor Energy99000$71.58$2.15
Apr 2023Endeavor Energy47412120$79.45$2.16
Mar 2023Endeavor Energy5417222220$73.28$2.31
Feb 2023Endeavor Energy48212120$76.83$2.38

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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Diamondback E&P LLC in Martin County

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