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Texas oil lease

Producing

ROBERT WALKER UNIT ZAV B

Robert Walker Unit Zav B is an oil lease in Zavala County, Texas, operated by Exco Operating Company, LP in the Briscoe Ranch (Eagleford) field.

3 wells

48,567bbl oil, last 12 months−1% vs prior year
RRC lease
01-17827

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Where it sits

This county

Zavala CountyZavalaUvaldeKinneyMedinaFrioMaverickZavala County
Zavala County
Gas, last 12 months
14,360 mcf
Oil in Jul 2026
4,037 bbl

Production by month

Oil output held steady over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output held steady over the last 12 monthsMonthly oil production and gas for ROBERT WALKER UNIT ZAV B, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 48,567 bbl in the 12 months through Jul 2026, against 48,878 bbl in the 12 months before.Last 12 months: 48,567 bblbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output held steady over the last 12 monthsMonthly oil production and gas for ROBERT WALKER UNIT ZAV B, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 48,567 bbl in the 12 months through Jul 2026, against 48,878 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

88% of the gas went to a transmission line in the last 12 months

Flaring peaked at 26.3% of the gas in Jun 2026.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
88% of the gas went to a transmission line in the last 12 monthsShare of ROBERT WALKER UNIT ZAV B gas by disposition code each month, Aug 2023 to Jul 2026. 88% of the gas went to a transmission line in the last 12 months. Flaring peaked at 26.3% of the gas in Jun 2026.Share of the lease’s gas by disposition code, per month0%50%100%Flared 26.3%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
88% of the gas went to a transmission line in the last 12 monthsShare of ROBERT WALKER UNIT ZAV B gas by disposition code each month, Aug 2023 to Jul 2026. 88% of the gas went to a transmission line in the last 12 months. Flaring peaked at 26.3% of the gas in Jun 2026.Share of gas by disposition code0%50%100%Flared 26.3%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    88% · 12,686 mcf

  • Lease fuel (1)

    7.6% · 1,096 mcf

  • Flared (4)

    4.0% · 578 mcf

4.0% of the gas flared in the last 12 months. 9 months above 3%.

3 wells on this lease

Wells on ROBERT WALKER UNIT ZAV B
API numberWell no.Status
42-507-331541HActive
42-507-333482HActive
42-507-333493HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Harvest Midstream CompanyOilGathers75May 1, 2023–
Eastex Crude Company, LLCOilGathers25Jan 1, 2023–
Raider Marketing, LPCasinghead gasBuys100Jan 1, 2017–
Williams Mlp Operating LLCCasinghead gasGathers100Oct 1, 2015–
Paradigm Midstream Svcs-St, LLCOilGathers75Jan 1, 2023May 1, 2023
Chesapeake Energy Mktg, L.l.c.OilGathers10Sep 1, 2015Jan 1, 2023
Eastex Crude CompanyOilGathers45Jan 1, 2017Jan 1, 2023
Paradigm Midstream Svcs-St, LLCOilGathers45Jan 1, 2017Jan 1, 2023

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

640 acres on the newest permit

Permits for Robert Walker Unit Zav B
API numberWell no.Acreson the permit
42-507-333482H640
42-507-333493H640
42-507-331541H640

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

Estimate your royalty

36 months, newest first

Ledger for ROBERT WALKER UNIT ZAV B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20264,0374,0371,2901,1830$80.46$2.89
Jun 20263,8133,8131,075693283$84.81$3.15
May 20264,0264,0261,2071,0730$102.13$2.94
Apr 20263,9113,9111,11397585$100.32$2.77
Mar 20263,9243,9241,1591,0960$91.38$3.04
Feb 20263,6923,6928838350$64.51$3.62
Jan 20263,8763,8761,0881,0370$60.04$7.72
Dec 20254,0874,0871,1631,0820$57.97$4.26
Nov 20254,0324,0321,2011,1090$60.06$3.79
Oct 20254,3234,3231,2841,18838$60.89$3.19
Sep 20254,2054,2051,3191,012172$63.96$2.97
Aug 20254,6414,6411,5781,4030$64.86$2.91
Jul 20254,4014,4011,5791,4670$68.39$3.20
Jun 20254,1174,1171,6311,4560$68.17$3.02
May 20254,2684,2681,7991,188455$62.17$3.12
Apr 20254,1464,1461,8941,502172$63.54$3.42
Mar 20254,2014,2012,3302,1130$68.24$4.12
Feb 20253,9113,9112,2372,0160$71.53$4.19
Jan 20254,2254,2252,1021,516214$75.74$4.13
Dec 20244,0614,0611,5721,4530$70.12$3.01
Nov 20244,1944,1941,7121,4820$69.95$2.12
Oct 20244,4604,4602,2951,9370$71.99$2.20
Sep 20243,9053,9052,6432,2980$70.24$2.28
Aug 20242,9892,9893,1472,103368$76.68$1.99
Jul 20242,9442,9443,8312,140683$81.80$2.07
Jun 20247,4767,4768,2848,2010$79.77$2.54
May 20244,6064,6063,9423,5120$80.02$2.12
Apr 20243,7703,7703,9322,968348$85.35$1.60
Mar 20244,9464,9463,9373,4950$81.28$1.49
Feb 20244,1594,1593,8333,2390$77.25$1.72
Jan 20245,1115,1114,0113,6470$74.15$3.18
Dec 20235,3855,3854,0483,6800$71.90$2.52
Nov 20235,7625,7623,3723,0810$77.69$2.71
Oct 20235,7235,7233,7633,3440$85.64$2.98
Sep 20236,1226,1223,9073,5370$89.43$2.64
Aug 20236,9206,9204,5074,0200$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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