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Texas oil lease

Producing

RAIL SPLITTER

Rail Splitter is an oil lease in Reeves County, Texas, operated by U.S. Energy Development Corp in the Wolfbone (Trend Area) field.

2 wells

25,846bbl oil, last 12 months−21% vs prior year
RRC lease
08-45045

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Where it sits

This county

Reeves CountyReevesWinklerWardLovingReeves County
Reeves County
Gas, last 12 months
43,539 mcf
Oil in Jul 2026
2,972 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: U.S. Energy Development Corp took over from Cog Operating LLC in Apr 2025.

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

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Production by month

Oil output fell 21% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 21% over the last 12 monthsMonthly oil production and gas for RAIL SPLITTER, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 25,846 bbl in the 12 months through Jul 2026, against 32,701 bbl in the 12 months before.Last 12 months: 25,846 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,0005,00010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 21% over the last 12 monthsMonthly oil production and gas for RAIL SPLITTER, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 25,846 bbl in the 12 months through Jul 2026, against 32,701 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,0005,00010kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plant

Flaring peaked at 9.9% of the gas in Jun 2026.

  • Processing plant (3)
  • Transmission line (2)
  • Flared (4)
Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plantShare of RAIL SPLITTER gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 9.9% of the gas in Jun 2026.Share of the lease’s gas by disposition code, per month0%50%100%Apr 2025: plant to lineFlared 9.9%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plantShare of RAIL SPLITTER gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 9.9% of the gas in Jun 2026.Share of gas by disposition code0%50%100%Apr 25: plant to lineFlared 9.9%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    98% · 42,674 mcf

  • Flared (4)

    2.0% · 865 mcf

2.0% of the gas flared in the last 12 months. 3 months above 3%.

Who has run this lease

The operator changed once, most recently in Apr 2025

Operators of this lease over timeCog Operating LLC, Jan 2020 to Mar 2025; U.S. Energy Development Corp, Apr 2025 to Jul 20262020202120222023202420252026Changed Apr 2025Cog Operating LLCJan 2020 to Mar 2025U.S. Energy Development CorpApr 2025 to now
Operators of this lease over timeCog Operating LLC, Jan 2020 to Mar 2025; U.S. Energy Development Corp, Apr 2025 to Jul 20262020202120222023202420252026Changed Apr 2025Cog Operating LLCJan 2020 to Mar 2025U.S. Energy Development CorpApr 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

2 wells on this lease

Wells on RAIL SPLITTER
API numberWell no.Status
42-389-33785103HActive
42-389-34029101HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Oryx Delaware Oil Transport LLCOilGathers100Apr 1, 2025–
Energy Transfer CompanyCasinghead gasBuys100Nov 1, 2015–
Energy Transfer CompanyCasinghead gasGathers100Nov 1, 2015–
Enterprise Crude Oil LLCOilGathers100Sep 21, 2013Apr 1, 2025

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

400.93 acres on the newest permit

Permits for Rail Splitter
API numberWell no.Acreson the permit
42-389-34029101H400.93
42-389-33785103H400.93

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

Estimate your royalty

36 months, newest first

Ledger for RAIL SPLITTER
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026U.S. Energy2,9723,0975,0204,905115$80.46$2.89
Jun 2026U.S. Energy2,3682,2672,6462,384262$84.81$3.15
May 2026U.S. Energy1,1131,1271,6871,65631$102.13$2.94
Apr 2026U.S. Energy5587736076070$100.32$2.77
Mar 2026U.S. Energy7078631121120$91.38$3.04
Feb 2026U.S. Energy2,2022,1552,4652,4650$64.51$3.62
Jan 2026U.S. Energy2,7722,8404,0194,0145$60.04$7.72
Dec 2025U.S. Energy2,9872,8926,0156,0150$57.97$4.26
Nov 2025U.S. Energy2,6202,7205,6215,57546$60.06$3.79
Oct 2025U.S. Energy3,0332,8936,1985,891307$60.89$3.19
Sep 2025U.S. Energy1,9751,9793,7123,64963$63.96$2.97
Aug 2025U.S. Energy2,5392,6005,4375,40136$64.86$2.91
Jul 2025U.S. Energy3,0353,0926,7316,598133$68.39$3.20
Jun 2025U.S. Energy3,1453,0125,7505,71238$68.17$3.02
May 2025U.S. Energy3,0893,0745,5975,50196$62.17$3.12
Apr 2025U.S. Energy3,7473,6706,4146,118296$63.54$3.42
Mar 2025Cog Operating2,9282,5014,5424,5420$68.24$4.12
Feb 2025Cog Operating0391000$71.53$4.19
Jan 2025Cog Operating2,2462,2484,0384,0380$75.74$4.13
Dec 2024Cog Operating3,0803,2605,3565,3560$70.12$3.01
Nov 2024Cog Operating3,2853,2006,4376,4370$69.95$2.12
Oct 2024Cog Operating3,1252,9466,2026,2020$71.99$2.20
Sep 2024Cog Operating1,9642,1673,7923,7920$70.24$2.28
Aug 2024Cog Operating3,0573,0495,8965,8960$76.68$1.99
Jul 2024Cog Operating1,8751,8902,8052,8050$81.80$2.07
Jun 2024Cog Operating2,0312,2902,2002,2000$79.77$2.54
May 2024Cog Operating4738000$80.02$2.12
Apr 2024Cog Operating3733686286280$85.35$1.60
Mar 2024Cog Operating2,8392,9493,8263,8260$81.28$1.49
Feb 2024Cog Operating3,4943,3715,9055,9050$77.25$1.72
Jan 2024Cog Operating4,2214,1966,1726,1720$74.15$3.18
Dec 2023Cog Operating2,4262,1533,2873,2870$71.90$2.52
Nov 2023Cog Operating2,1422,2463,5163,5160$77.69$2.71
Oct 2023Cog Operating2,5222,3694,0624,0620$85.64$2.98
Sep 2023Cog Operating3,7413,9335,7725,7720$89.43$2.64
Aug 2023Cog Operating2,0791,5503,4253,4250$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 Reeves County

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