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Producing

ROST-MANN CO-OP UNIT

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

1 well

781bbl oil, last 12 months−19% vs prior year
Operator
Magnolia Oil & Gas Operating LLC
County
Lee County
Field
Giddings (Austin Chalk-3)
RRC lease
03-26749

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Where it sits

This county

Lee CountyLeeWilliamsonBastropWashingtonBrazosBurlesonAustinMilamLee County
Lee County
Gas, last 12 months
25,576 mcf
Oil in Jul 2026
23 bbl

Production by month

Oil output fell 19% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 19% over the last 12 monthsMonthly oil production and gas for ROST-MANN CO-OP UNIT, Aug 2023 to Jul 2026. Oil output fell 19% over the last 12 months. 781 bbl in the 12 months through Jul 2026, against 969 bbl in the 12 months before.Last 12 months: 781 bblbbl per monthmcf per month00501,0001002,0001503,0002004,0002505,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 19% over the last 12 monthsMonthly oil production and gas for ROST-MANN CO-OP UNIT, Aug 2023 to Jul 2026. Oil output fell 19% over the last 12 months. 781 bbl in the 12 months through Jul 2026, against 969 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00501,0001002,0001503,0002004,0002505,000Jan 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 ROST-MANN CO-OP 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 ROST-MANN CO-OP 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.

1 well on this lease

Wells on ROST-MANN CO-OP UNIT
API numberWell no.Status
42-287-326371Active

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–
Dcp Operating Company, LPCasinghead gasGathers100Apr 1, 2017Jul 1, 2021
Dcp Operating Company, LPCasinghead gasBuys100Apr 1, 2017Jul 1, 2021
Enterprise Crude Oil LLCOilGathers25Jun 1, 2018Jul 1, 2021
Flint Hills Resources, LPOilGathers25Jun 1, 2018Jul 1, 2021
Shell Trading (Us) CompanyOilGathers25Jun 1, 2018Jul 1, 2021
Sunoco Ptnrs. Mktg.&terminals LPOilGathers25Jun 1, 2018Jul 1, 2021

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

Who buys my oilOil price check

213.58 acres on the newest permit

  • 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 Rost-Mann Co-Op Unit
API numberWell no.Acreson the permit
42-287-326371213.58

SourceRailroad Commission drilling permits, Oct 3, 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 ROST-MANN CO-OP UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20262301,6511,6510$80.46$2.89
Jun 2026561631,8281,8280$84.81$3.15
May 20265001,9001,9000$102.13$2.94
Apr 20264001,7721,7720$100.32$2.77
Mar 20265302,2412,2410$91.38$3.04
Feb 2026631862,1172,1170$64.51$3.62
Jan 20269002,3782,3780$60.04$7.72
Dec 2025901802,3792,3790$57.97$4.26
Nov 20257402,1792,1790$60.06$3.79
Oct 2025771852,3242,3240$60.89$3.19
Sep 20259002,3862,3860$63.96$2.97
Aug 2025751772,4212,4210$64.86$2.91
Jul 20256111,9611,9610$68.39$3.20
Jun 20257002,4612,4610$68.17$3.02
May 2025801722,6812,6810$62.17$3.12
Apr 20256512,5952,5950$63.54$3.42
Mar 20251181873,0913,0910$68.24$4.12
Feb 20252071843,6013,6010$71.53$4.19
Jan 202500000$75.74$4.13
Dec 20241608278270$70.12$3.01
Nov 20248602,4762,4760$69.95$2.12
Oct 2024771862,6462,6460$71.99$2.20
Sep 20247512,5392,5390$70.24$2.28
Aug 20241141833,7183,7180$76.68$1.99
Jul 2024281891,4841,4840$81.80$2.07
Jun 202410802,8082,8080$79.77$2.54
May 202415702,9312,9310$80.02$2.12
Apr 2024401857697690$85.35$1.60
Mar 202415403,4083,4080$81.28$1.49
Feb 2024131875325320$77.25$1.72
Jan 20247302,5142,5140$74.15$3.18
Dec 20238002,7682,7680$71.90$2.52
Nov 2023891742,7532,7530$77.69$2.71
Oct 20238602,7252,7250$85.64$2.98
Sep 2023801782,6192,6190$89.43$2.64
Aug 202310502,8042,8040$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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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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