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GUELKER UNIT

Guelker Unit is an oil lease in Lee County, Texas, operated by Magnolia Oil & Gas Operating LLC in the Giddings (Austin Chalk-3) field.

2 wells

533bbl oil, last 12 months−75% vs prior year
Operator
Magnolia Oil & Gas Operating LLC
County
Lee County
Field
Giddings (Austin Chalk-3)
RRC lease
03-14971

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Where it sits

This county

Lee CountyLeeWilliamsonBastropWashingtonBrazosBurlesonAustinMilamLee County
Lee County
Gas, last 12 months
5,630 mcf
Oil in Jul 2026
0 bbl

Checks stopped on this lease?

  • Sales

    No sales reported for the last 8 months of state data (through Jul 2026).

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 fell 75% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 75% over the last 12 monthsMonthly oil production and gas for GUELKER UNIT, Aug 2023 to Jul 2026. Oil output fell 75% over the last 12 months. 533 bbl in the 12 months through Jul 2026, against 2,143 bbl in the 12 months before.Last 12 months: 533 bblbbl per monthmcf per month001005002001,0003001,5004002,0005002,500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 75% over the last 12 monthsMonthly oil production and gas for GUELKER UNIT, Aug 2023 to Jul 2026. Oil output fell 75% over the last 12 months. 533 bbl in the 12 months through Jul 2026, against 2,143 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001005002001,0003001,5004002,0005002,500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

All of the gas went to a transmission line in the last 12 monthsShare of GUELKER UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the last 12 monthsShare of GUELKER UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

2 wells on this lease

Wells on GUELKER UNIT
API numberWell no.Status
42-287-310011Shut-in
42-287-311902Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Trans Crude Marketing LLCOilGathers100Jul 1, 2021–
Energy Transfer CompanyCasinghead gasGathers100May 1, 2005Jul 1, 2021
Magnolia Oil & Gas Operating LLCCasinghead gasBuys100Sep 1, 2018Jul 1, 2021
Sunoco Ptnrs. Mktg.&terminals LPOilGathers100Dec 1, 2013Jul 1, 2021

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

Who buys my oilOil price check

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

    The wells on this lease state different acreage

    The permits state between 220 and 320 acres. Use the acres from your own division order for the well you are paid on.

Check your decimal on this lease
Permits for Guelker Unit
API numberWell no.Acreson the permit
42-287-311902320
42-287-310011220

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

Unit decimal checker

What Magnolia Oil & Gas Corporation told investors it received

Magnolia Oil & Gas Operating LLC is linked to Magnolia Oil & Gas Corporation (MGY).
Realized prices reported by Magnolia Oil & Gas Corporation
QuarterOil$ per bblFiling
Q2 2026$98.13SEC filing
Q1 2026$70.29SEC filing
Q3 2025$63.55SEC filing
Q2 2025$62.20SEC filing
Q1 2025$69.81SEC filing
Q3 2024$74.23SEC filing

SourceMagnolia Oil & Gas Corporation quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for GUELKER UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202600000$80.46$2.89
Jun 202600000$84.81$3.15
May 202600000$102.13$2.94
Apr 202600000$100.32$2.77
Mar 2026003343340$91.38$3.04
Feb 2026002602600$64.51$3.62
Jan 2026002612610$60.04$7.72
Dec 2025003653650$57.97$4.26
Nov 2025012902900$60.06$3.79
Oct 20251681741,2191,2190$60.89$3.19
Sep 20252561831,7261,7260$63.96$2.97
Aug 20251091751,1751,1750$64.86$2.91
Jul 20259716986980$68.39$3.20
Jun 2025301738448440$68.17$3.02
May 20251811691,4451,4450$62.17$3.12
Apr 202510709369360$63.54$3.42
Mar 20251521835075070$68.24$4.12
Feb 2025113533530$71.53$4.19
Jan 20252663531,4311,4310$75.74$4.13
Dec 20242001721,8381,8380$70.12$3.01
Nov 20243663531,3231,3230$69.95$2.12
Oct 20244163501,4391,4390$71.99$2.20
Sep 20242063431,1151,1150$70.24$2.28
Aug 202412116356350$76.68$1.99
Jul 20242703441,0141,0140$81.80$2.07
Jun 20243973551,2361,2360$79.77$2.54
May 20244315371,2561,2560$80.02$2.12
Apr 20244063551,2241,2240$85.35$1.60
Mar 20243763551,3201,3200$81.28$1.49
Feb 20242761681,2331,2330$77.25$1.72
Jan 20243243651,3871,3870$74.15$3.18
Dec 20232833581,4461,4460$71.90$2.52
Nov 20232141751,3301,3300$77.69$2.71
Oct 20231141741,3351,3350$85.64$2.98
Sep 20232271781,6461,6460$89.43$2.64
Aug 20232511801,5421,5420$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

OperatorMagnolia Oil & Gas Operating LLCFieldGiddings (Austin Chalk-3)CountyLee County

Magnolia Oil & Gas Operating LLC in Lee County

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Giddings (Austin Chalk-3) field

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