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Texas oil lease

Producing

MILLICAN REEF UNIT

Millican Reef Unit is an oil lease in Coke County, Texas, operated by Gungoll, Carl E. Exploration LLC in the Millican field.

7 wells

1,623bbl oil, last 12 months−1% vs prior year
RRC lease
7C-10733

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Where it sits

This county

Coke CountyCokeTaylorMitchellRunnelsNolanSterlingCoke County
Coke County
Gas, last 12 months
23,127 mcf
Oil in Jul 2026
134 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 MILLICAN REEF UNIT, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 1,623 bbl in the 12 months through Jul 2026, against 1,645 bbl in the 12 months before.Last 12 months: 1,623 bblbbl per monthmcf per month001001,0002002,0003003,0004004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output held steady over the last 12 monthsMonthly oil production and gas for MILLICAN REEF UNIT, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 1,623 bbl in the 12 months through Jul 2026, against 1,645 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001001,0002002,0003003,0004004,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

All of the gas went to a processing plant in the last 12 months

All of the gas went to a processing plant in the last 12 monthsShare of MILLICAN REEF UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant 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 processing plant in the last 12 monthsShare of MILLICAN REEF UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant 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.

Who has run this lease

The operator changed 2 times, most recently in Jan 2023

Operators of this lease over timeAbraxas Petroleum Corporation, Jan 2020 to Oct 2021; Field Petroleum Corp., Nov 2021 to Dec 2022; Gungoll, Carl E. Exploration LLC, Jan 2023 to Jul 20262020202120222023202420252026Changed Nov 2021Changed Jan 2023Abraxas Petroleum CorporationJan 2020 to Oct 2021Field Petroleum Corp.Nov 2021 to Dec 2022Gungoll, Carl E. Exploration…Jan 2023 to now
Operators of this lease over timeAbraxas Petroleum Corporation, Jan 2020 to Oct 2021; Field Petroleum Corp., Nov 2021 to Dec 2022; Gungoll, Carl E. Exploration LLC, Jan 2023 to Jul 20262020202120222023202420252026Changed Nov 2021Changed Jan 2023Abraxas Petroleum CorporationJan 2020 to Oct 2021Field Petroleum Corp.Nov 2021 to Dec 2022Gungoll, Carl E. Exploration LLCJan 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

7 wells on this lease

Wells on MILLICAN REEF UNIT
API numberWell no.Status
42-081-014124Shut-in
42-081-301401PActive
42-081-301703 PShut-in
42-081-312542 SActive
42-081-312553 SShut-in
42-081-317666PActive
42-081-319352AActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Transfer CompanyOilGathers100Sep 1, 2025–
Wtg Gas Processing, L.p.Casinghead gasGathers100May 1, 2004Sep 1, 2025
Wtg Gas Processing, L.p.Casinghead gasBuys100May 1, 2004Sep 1, 2025
Energy Trans Crude Marketing LLCOilGathers50Jul 1, 2021Sep 1, 2025
Sunoco Ptnrs. Mktg.&terminals LPOilGathers50Jul 1, 2021Sep 1, 2025
Nominator Not Required / Swr 31Casinghead gasNominates100Sep 1, 1993Jul 1, 2021
Sunoco Ptnrs. Mktg.&terminals LPOilGathers100Apr 1, 2002Jul 1, 2021

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

2,622.91 acres on the newest permit

A pooling certificate was filed

7 wells are listed on this lease

Permits for Millican Reef Unit
API numberWell no.Acreson the permit
42-081-319352A2,622.91
42-081-317666P2,622.91
42-081-0141242,640
42-081-312553 S2,640
42-081-312542 S2,640
42-081-301401P–
42-081-301703 P–

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

Estimate your royalty

36 months, newest first

Ledger for MILLICAN REEF UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Gungoll, Carl1341822,0042,0040$80.46$2.89
Jun 2026Gungoll, Carl1361882,0832,0830$84.81$3.15
May 2026Gungoll, Carl14102,0832,0830$102.13$2.94
Apr 2026Gungoll, Carl1361892,3552,3550$100.32$2.77
Mar 2026Gungoll, Carl1401901,2321,2320$91.38$3.04
Feb 2026Gungoll, Carl1271911,5821,5820$64.51$3.62
Jan 2026Gungoll, Carl10702,3222,3220$60.04$7.72
Dec 2025Gungoll, Carl01881,9281,9280$57.97$4.26
Nov 2025Gungoll, Carl2961881,4821,4820$60.06$3.79
Oct 2025Gungoll, Carl12801,9601,9600$60.89$3.19
Sep 2025Gungoll, Carl1381882,0362,0360$63.96$2.97
Aug 2025Gungoll, Carl1401872,0602,0600$64.86$2.91
Jul 2025Gungoll, Carl1661885185180$68.39$3.20
Jun 2025Gungoll, Carl13101,0891,0890$68.17$3.02
May 2025Gungoll, Carl1671889329320$62.17$3.12
Apr 2025Gungoll, Carl1391888948940$63.54$3.42
Mar 2025Gungoll, Carl9301,2471,2470$68.24$4.12
Feb 2025Gungoll, Carl841921,4551,4550$71.53$4.19
Jan 2025Gungoll, Carl1421901,4821,4820$75.74$4.13
Dec 2024Gungoll, Carl14401,4511,4510$70.12$3.01
Nov 2024Gungoll, Carl1221861,5311,5310$69.95$2.12
Oct 2024Gungoll, Carl1391871,0531,0530$71.99$2.20
Sep 2024Gungoll, Carl1771881,8701,8700$70.24$2.28
Aug 2024Gungoll, Carl14103,6373,6370$76.68$1.99
Jul 2024Gungoll, Carl2273722,5422,5420$81.80$2.07
Jun 2024Gungoll, Carl2703722,6082,6080$79.77$2.54
May 2024Gungoll, Carl28402,5412,5410$80.02$2.12
Apr 2024Gungoll, Carl2373656846840$85.35$1.60
Mar 2024Gungoll, Carl2501902,2142,2140$81.28$1.49
Feb 2024Gungoll, Carl2653841,4091,4090$77.25$1.72
Jan 2024Gungoll, Carl9301,6361,6360$74.15$3.18
Dec 2023Gungoll, Carl1071913233230$71.90$2.52
Nov 2023Gungoll, Carl1371841301300$77.69$2.71
Oct 2023Gungoll, Carl12202,0552,0550$85.64$2.98
Sep 2023Gungoll, Carl2091882,0402,0400$89.43$2.64
Aug 2023Gungoll, Carl1741792,0122,0120$81.39$2.58

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

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Gungoll, Carl E. Exploration LLC in Coke County

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Millican field

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