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Texas oil lease

Producing

GREATHOUSE 13-12 D

Greathouse 13-12 D is an oil lease in Upton County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

2 wells

23,263bbl oil, last 12 months−30% vs prior year
Operator
Diamondback E&P LLC
County
Upton County
Field
Spraberry (Trend Area)
RRC lease
7C-20131

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Where it sits

This county

Upton CountyUptonMidlandCraneGlasscockReaganEctorUpton County
Upton County
Gas, last 12 months
312,903 mcf
Oil in Jul 2026
2,273 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Diamondback E&P LLC took over from Endeavor Energy Resources L.P. in Jan 2025.

  • Buyer

    Buyer changed: ET GATHERING & PROCESSING LLC replaced ETC SOUTH PERMIAN MIDSTREAM LLC as the buyer of this lease's gas from oil wells on Jan 1, 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 30% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 30% over the last 12 monthsMonthly oil production and gas for GREATHOUSE 13-12 D, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 23,263 bbl in the 12 months through Jul 2026, against 33,394 bbl in the 12 months before.Last 12 months: 23,263 bblbbl per monthmcf per month001,00010k2,00020k3,00030k4,00040kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 30% over the last 12 monthsMonthly oil production and gas for GREATHOUSE 13-12 D, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 23,263 bbl in the 12 months through Jul 2026, against 33,394 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,00010k2,00020k3,00030k4,00040kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant

Flaring peaked at 25.3% of the gas in Nov 2025.

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of GREATHOUSE 13-12 D gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 25.3% of the gas in Nov 2025.Share of the lease’s gas by disposition code, per month0%50%100%Nov 2024: plant to lineFlared 25.3%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of GREATHOUSE 13-12 D gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 25.3% of the gas in Nov 2025.Share of gas by disposition code0%50%100%Nov 24: plant to lineFlared 25.3%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    85% · 267,474 mcf

  • Lease fuel (1)

    12% · 36,082 mcf

  • Flared (4)

    3.0% · 9,347 mcf

3.0% of the gas flared in the last 12 months. 21 months above 3%.

Who has run this lease

The operator changed once, most recently in Jan 2025

Operators of this lease over timeEndeavor Energy Resources L.P., Jan 2020 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 20262020202120222023202420252026Changed Jan 2025Endeavor Energy Resources L.P.Jan 2020 to Dec 2024Diamondback E&P LLCJan 2025 to now
Operators of this lease over timeEndeavor Energy Resources L.P., Jan 2020 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 20262020202120222023202420252026Changed Jan 2025Endeavor Energy Resources L.P.Jan 2020 to Dec 2024Diamondback E&P LLCJan 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

2 wells on this lease

Wells on GREATHOUSE 13-12 D
API numberWell no.Status
42-461-40804241Active
42-461-40855242Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Medallion Operating Company, LLCOilGathers100Jul 1, 2019–
Et Gathering & Processing LLCCasinghead gasBuys100Jan 1, 2026–
Energy Transfer CompanyCasinghead gasGathers100Aug 1, 2024–
Etc South Permian Midstream LLCCasinghead gasBuys100Aug 1, 2024Jan 1, 2026
Wtg South Permian Midstream LLCCasinghead gasGathers100May 1, 2021Aug 1, 2024
Wtg South Permian Midstream LLCCasinghead gasBuys100May 1, 2021Aug 1, 2024
Wtg Gas Processing, L.p.Casinghead gasGathers100Sep 28, 2018Jul 1, 2019
Wtg Gas Processing, L.p.Casinghead gasBuys100Sep 28, 2018Jul 1, 2019
Medallion Operating Company, LLCOilGathers90Sep 28, 2018Jul 1, 2019

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

Who buys my oilOil price check

478.60 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

  • 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 Greathouse 13-12 D
API numberWell no.Acreson the permit
42-461-40855242478.60
42-461-40804241478.60

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

Unit decimal checker

What Diamondback Energy, Inc. told investors it received

Diamondback E&P LLC is linked to Diamondback Energy, Inc. (FANG).
Realized prices reported by Diamondback Energy, Inc.
QuarterOil$ per bblFiling
Q2 2026$96.82SEC filing
Q1 2026$73.47SEC filing
Q4 2025$58.00SEC filing
Q3 2025$64.60SEC filing
Q2 2025$63.23SEC filing
Q1 2025$70.95SEC filing

SourceDiamondback Energy, Inc. quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for GREATHOUSE 13-12 D
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P2,2732,30127,62324,112265$80.46$2.89
Jun 2026Diamondback E&P2,2082,23526,52523,19239$84.81$3.15
May 2026Diamondback E&P2,4572,39327,74024,50819$102.13$2.94
Apr 2026Diamondback E&P1,8311,86928,23125,1260$100.32$2.77
Mar 2026Diamondback E&P2,4852,38925,75422,431207$91.38$3.04
Feb 2026Diamondback E&P1,3981,45224,28721,29648$64.51$3.62
Jan 2026Diamondback E&P1,5991,75924,77921,463259$60.04$7.72
Dec 2025Diamondback E&P1,8921,68425,88022,53948$57.97$4.26
Nov 2025Diamondback E&P1,6031,59423,70214,6295,985$60.06$3.79
Oct 2025Diamondback E&P1,6081,62423,38319,988752$60.89$3.19
Sep 2025Diamondback E&P1,8591,85627,12323,849810$63.96$2.97
Aug 2025Diamondback E&P2,0502,03727,87624,341915$64.86$2.91
Jul 2025Diamondback E&P2,1242,12229,85726,423876$68.39$3.20
Jun 2025Diamondback E&P2,1132,15429,16224,5172,088$68.17$3.02
May 2025Diamondback E&P2,4862,48631,97728,544881$62.17$3.12
Apr 2025Diamondback E&P2,9602,96831,77727,5661,631$63.54$3.42
Mar 2025Diamondback E&P3,0593,06732,27328,0621,490$68.24$4.12
Feb 2025Diamondback E&P2,7522,74228,59624,3001,874$71.53$4.19
Jan 2025Diamondback E&P3,0783,05733,35629,725967$75.74$4.13
Dec 2024Endeavor Energy3,0793,08732,82528,9021,276$70.12$3.01
Nov 2024Endeavor Energy3,1773,17330,70922,6885,500$69.95$2.12
Oct 2024Endeavor Energy3,1673,15731,15826,2062,405$71.99$2.20
Sep 2024Endeavor Energy2,6882,67429,85123,7203,833$70.24$2.28
Aug 2024Endeavor Energy2,7112,71132,94629,121946$76.68$1.99
Jul 2024Endeavor Energy3,0833,07934,87531,228798$81.80$2.07
Jun 2024Endeavor Energy2,8302,81929,75226,423598$79.77$2.54
May 2024Endeavor Energy2,6572,64931,17325,1363,454$80.02$2.12
Apr 2024Endeavor Energy2,6752,69627,90824,0891,481$85.35$1.60
Mar 2024Endeavor Energy3,0973,08235,58131,6721,161$81.28$1.49
Feb 2024Endeavor Energy2,9802,97631,76528,0751,020$77.25$1.72
Jan 2024Endeavor Energy2,7122,72330,06926,2071,071$74.15$3.18
Dec 2023Endeavor Energy3,1423,12135,51031,1821,427$71.90$2.52
Nov 2023Endeavor Energy2,9662,98835,19231,0661,195$77.69$2.71
Oct 2023Endeavor Energy3,1633,15234,31728,1993,248$85.64$2.98
Sep 2023Endeavor Energy3,0373,03233,09428,9671,371$89.43$2.64
Aug 2023Endeavor Energy3,3843,37637,87533,1311,364$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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This lease belongs to

OperatorDiamondback E&P LLCFieldSpraberry (Trend Area)CountyUpton County

Diamondback E&P LLC in Upton County

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Spraberry (Trend Area) field

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