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IRONWOOD A2 UNIT

Ironwood A2 Unit is an oil lease in Frio County, Texas, operated by U.S. Energy Development Corp in the Briscoe Ranch (Eagleford) field.

1 well

4,954bbl oil, last 12 months−23% vs prior year
RRC lease
01-18865

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Where it sits

This county

Frio CountyFrioZavalaAtascosaUvaldeMedinaBexarFrio County
Frio County
Gas, last 12 months
648 mcf
Oil in Jul 2026
476 bbl

Checks stopped on this lease?

  • Buyer

    Buyer changed: ENTERPRISE HYDROCARBONS, L.P. replaced WILLIAMS MLP OPERATING LLC as the buyer of this lease's gas from oil wells on Oct 1, 2024.

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 23% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 23% over the last 12 monthsMonthly oil production and gas for IRONWOOD A2 UNIT, Aug 2023 to Jul 2026. Oil output fell 23% over the last 12 months. 4,954 bbl in the 12 months through Jul 2026, against 6,407 bbl in the 12 months before.Last 12 months: 4,954 bblbbl per monthmcf per month002502005004007506001,000800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 23% over the last 12 monthsMonthly oil production and gas for IRONWOOD A2 UNIT, Aug 2023 to Jul 2026. Oil output fell 23% over the last 12 months. 4,954 bbl in the 12 months through Jul 2026, against 6,407 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002502005004007506001,000800Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Mar 2026 the lease's gas goes to lease fuel instead of a transmission line

Flaring peaked at 32.5% of the gas in Jan 2025.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Mar 2026 the lease's gas goes to lease fuel instead of a transmission lineShare of IRONWOOD A2 UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2026 the lease's gas goes to lease fuel instead of a transmission line. Flaring peaked at 32.5% of the gas in Jan 2025.Share of the lease’s gas by disposition code, per month0%50%100%Mar 2026: line to fuelFlared 32.5%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Mar 2026 the lease's gas goes to lease fuel instead of a transmission lineShare of IRONWOOD A2 UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2026 the lease's gas goes to lease fuel instead of a transmission line. Flaring peaked at 32.5% of the gas in Jan 2025.Share of gas by disposition code0%50%100%Mar 26: line to fuelFlared 32.5%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    48% · 314 mcf

  • Lease fuel (1)

    48% · 313 mcf

  • Flared (4)

    3.2% · 21 mcf

3.2% of the gas flared in the last 12 months. 10 months above 3%.

1 well on this lease

Wells on IRONWOOD A2 UNIT
API numberWell no.Status
42-163-33972A 2EFActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Plains Marketing, L.p.OilGathers100Sep 1, 2025–
Enterprise Hydrocarbons, L.p.Casinghead gasBuys100Oct 1, 2024–
Williams Mlp Operating LLCCasinghead gasGathers100Aug 30, 2021–
Apricus Enterprises, LLCOilGathers100Jan 1, 2025Sep 1, 2025
4J Energy, LLCOilGathers100Oct 1, 2024Jan 1, 2025
Williams Mlp Operating LLCCasinghead gasBuys100Aug 30, 2021Oct 1, 2024
Harvest Marketing & Trading, LLCOilGathers100Feb 1, 2023Oct 1, 2024
Shell Trading (Us) CompanyOilGathers100Aug 30, 2021Feb 1, 2023
Ace Gathering, Inc.OilGathers50May 1, 2020Aug 30, 2021

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

104.62 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 Ironwood A2 Unit
API numberWell no.Acreson the permit
42-163-33972A 2EF104.62

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

Estimate your royalty

36 months, newest first

Ledger for IRONWOOD A2 UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202647648543170$80.46$2.89
Jun 202624633452191$84.81$3.15
May 202644633461227$102.13$2.94
Apr 202640948054210$100.32$2.77
Mar 202641347057250$91.38$3.04
Feb 202637430649251$64.51$3.62
Jan 202640446456372$60.04$7.72
Dec 202545146861332$57.97$4.26
Nov 202559246555251$60.06$3.79
Oct 202526431655290$60.89$3.19
Sep 202542048448332$63.96$2.97
Aug 202545934357285$64.86$2.91
Jul 202545450535171$68.39$3.20
Jun 202547754047230$68.17$3.02
May 202549549053282$62.17$3.12
Apr 202550243153282$63.54$3.42
Mar 202550656937190$68.24$4.12
Feb 202542437539180$71.53$4.19
Jan 20255665481692255$75.74$4.13
Dec 202456067598120$70.12$3.01
Nov 20246505162861151$69.95$2.12
Oct 202458268189551$71.99$2.20
Sep 202459553844240$70.24$2.28
Aug 20245965381024110$76.68$1.99
Jul 2024687707511$81.80$2.07
Jun 202456554851210$79.77$2.54
May 20247407212891275$80.02$2.12
Apr 20247667172621402$85.35$1.60
Mar 2024751874181981$81.28$1.49
Feb 20246225382821800$77.25$1.72
Jan 20248318936093270$74.15$3.18
Dec 20238047235622280$71.90$2.52
Nov 20238089233581090$77.69$2.71
Oct 202380887457525012$85.64$2.98
Sep 20238947416333274$89.43$2.64
Aug 20238009115762407$81.39$2.58

Flared above 3%

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

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U.S. Energy Development Corp in Frio County

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