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Texas oil lease

Producing

KIEFER, CHESTER

Kiefer, Chester is an oil lease in Zavala County, Texas, operated by S-Resources, LLC in the Windmill Creek (Escondido) field.

17 wells

2,186bbl oil, last 12 months+12% vs prior year
Operator
S-Resources, LLC
County
Zavala County
Field
Windmill Creek (Escondido)
RRC lease
01-09351

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Where it sits

This county

Zavala CountyZavalaUvaldeKinneyMedinaFrioMaverickZavala County
Zavala County
Oil in Jul 2026
246 bbl
Reporting since
Jan 2020

Checks stopped on this lease?

  • Operator

    Operator changed: S-Resources, LLC took over from Bollinger Drilling Co. in Oct 2025.

  • P-5

    The current operator's P-5 registration is listed as delinquent (last P-5 filed Sep 10, 2025).

  • P-5

    The previous operator's P-5 registration is listed as delinquent (last P-5 filed Aug 28, 2025).

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

See why checks stop on this lease

Production by month

Oil output rose 12% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output rose 12% over the last 12 monthsMonthly oil production for KIEFER, CHESTER, Aug 2023 to Jul 2026. Oil output rose 12% over the last 12 months. 2,186 bbl in the 12 months through Jul 2026, against 1,951 bbl in the 12 months before.Last 12 months: 2,186 bblbbl per month0100200300400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 12% over the last 12 monthsMonthly oil production for KIEFER, CHESTER, Aug 2023 to Jul 2026. Oil output rose 12% over the last 12 months. 2,186 bbl in the 12 months through Jul 2026, against 1,951 bbl in the 12 months before.Last 12 monthsbbl per month0100200300400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

Who has run this lease

The operator changed once, most recently in Oct 2025

Operators of this lease over timeBollinger Drilling Co., Jan 2020 to Sep 2025; S-Resources, LLC, Oct 2025 to Jul 20262020202120222023202420252026Changed Oct 2025Bollinger Drilling Co.Jan 2020 to Sep 2025S-Resources, LLCOct 2025 to now
Operators of this lease over timeBollinger Drilling Co., Jan 2020 to Sep 2025; S-Resources, LLC, Oct 2025 to Jul 20262020202120222023202420252026Changed Oct 2025Bollinger Drilling Co.Jan 2020 to Sep 2025S-Resources, LLCOct 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

17 wells on this lease

Wells on KIEFER, CHESTER
API numberWell no.Status
42-507-319843Active
42-507-320194Active
42-507-320205Active
42-507-320906Active
42-507-321207Active
42-507-3276421Active
42-507-3277022Active
42-507-3278923Active
42-507-3284232Active
42-507-3284333Active
42-507-3285436Active
42-507-3290224Active
42-507-3292435Active
42-507-3292534Active
42-507-3303739Active
42-507-3356242Active
42-507-3356541Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Sunray Marketing, LLCOilGathers50May 26, 2026–
Synergy Transfer, LLCOilGathers50May 26, 2026–
Synergy Transfer, LLCOilGathers100May 22, 2026May 26, 2026
Sunray Marketing, LLCOilGathers100Oct 1, 2025May 22, 2026
Martin Crude Marketing Co.OilGathers25Jan 1, 2024Oct 1, 2025
Shell Trading (Us) CompanyOilGathers25Apr 1, 2023Oct 1, 2025
Sunray Marketing, LLCOilGathers25Feb 1, 2024Oct 1, 2025
Synergy Transfer, LLCOilGathers25Apr 1, 2023Oct 1, 2025

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

Who buys my oilOil price check

640 acres on the newest permit

  • Good to know

    The wells on this lease state different acreage

    The permits state between 50 and 4,261 acres. Use the acres from your own division order for the well you are paid on.

  • Good to know

    17 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.

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Kiefer, Chester
API numberWell no.Acreson the permit
42-507-3356541640
42-507-3356242640
42-507-3303739640
42-507-3292435630
42-507-3292534630
42-507-32902244,261
42-507-328543650
42-507-32842324,261
42-507-32843334,261
42-507-32789234,261
42-507-32770224,261
42-507-32764214,261

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for KIEFER, CHESTER
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026S-Resources, LLC246226$80.46$2.89
Jun 2026S-Resources, LLC228390$84.81$3.15
May 2026S-Resources, LLC1450$102.13$2.94
Apr 2026S-Resources, LLC91123$100.32$2.77
Mar 2026S-Resources, LLC225255$91.38$3.04
Feb 2026S-Resources, LLC18093$64.51$3.62
Jan 2026S-Resources, LLC190131$60.04$7.72
Dec 2025S-Resources, LLC190279$57.97$4.26
Nov 2025S-Resources, LLC200136$60.06$3.79
Oct 2025S-Resources, LLC186570$60.89$3.19
Sep 2025Bollinger Drilling125136$63.96$2.97
Aug 2025Bollinger Drilling180143$64.86$2.91
Jul 2025Bollinger Drilling1450$68.39$3.20
Jun 2025Bollinger Drilling129368$68.17$3.02
May 2025Bollinger Drilling2400$62.17$3.12
Apr 2025Bollinger Drilling225275$63.54$3.42
Mar 2025Bollinger Drilling308214$68.24$4.12
Feb 2025Bollinger Drilling60269$71.53$4.19
Jan 2025Bollinger Drilling110$75.74$4.13
Dec 2024Bollinger Drilling101142$70.12$3.01
Nov 2024Bollinger Drilling3190$69.95$2.12
Oct 2024Bollinger Drilling42259$71.99$2.20
Sep 2024Bollinger Drilling288135$70.24$2.28
Aug 2024Bollinger Drilling83278$76.68$1.99
Jul 2024Bollinger Drilling58227$81.80$2.07
Jun 2024Bollinger Drilling384134$79.77$2.54
May 2024Bollinger Drilling189278$80.02$2.12
Apr 2024Bollinger Drilling99138$85.35$1.60
Mar 2024Bollinger Drilling217132$81.28$1.49
Feb 2024Bollinger Drilling0556$77.25$1.72
Jan 2024Bollinger Drilling00$74.15$3.18
Dec 2023Bollinger Drilling2400$71.90$2.52
Nov 2023Bollinger Drilling2330$77.69$2.71
Oct 2023Bollinger Drilling70$85.64$2.98
Sep 2023Bollinger Drilling199302$89.43$2.64
Aug 2023Bollinger Drilling1500$81.39$2.58

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

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Nearby

This lease belongs to

OperatorS-Resources, LLCFieldWindmill Creek (Escondido)CountyZavala County

S-Resources, LLC in Zavala County

No other producing leases from this operator in this county are in our data yet.

Windmill Creek (Escondido) field

No other producing leases in this field are in our data yet.

Leases within 10 km

Drilling permits within 10 km