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Texas oil lease

Producing

PECK 20-29 SL

Peck 20-29 SL is an oil lease in Upton County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

3 wells

16,042bbl oil, last 12 months+28% vs prior year
Operator
Diamondback E&P LLC
County
Upton County
Field
Spraberry (Trend Area)
RRC lease
7C-19365

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Where it sits

This county

Upton CountyUptonMidlandCraneGlasscockReaganEctorUpton County
Upton County
Gas, last 12 months
158,781 mcf
Oil in Jul 2026
743 bbl

Checks stopped on this lease?

  • Operator

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

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

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Production by month

Oil output rose 28% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 28% over the last 12 monthsMonthly oil production and gas for PECK 20-29 SL, Aug 2023 to Jul 2026. Oil output rose 28% over the last 12 months. 16,042 bbl in the 12 months through Jul 2026, against 12,540 bbl in the 12 months before.Last 12 months: 16,042 bblbbl per monthmcf per month001,00010k2,00020k3,00030k4,00040kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 28% over the last 12 monthsMonthly oil production and gas for PECK 20-29 SL, Aug 2023 to Jul 2026. Oil output rose 28% over the last 12 months. 16,042 bbl in the 12 months through Jul 2026, against 12,540 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

98% of the gas went to a transmission line in the last 12 months

Flaring peaked at 57.7% of the gas in Jul 2024.

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
98% of the gas went to a transmission line in the last 12 monthsShare of PECK 20-29 SL gas by disposition code each month, Aug 2023 to Jul 2026. 98% of the gas went to a transmission line in the last 12 months. Flaring peaked at 57.7% of the gas in Jul 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 57.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
98% of the gas went to a transmission line in the last 12 monthsShare of PECK 20-29 SL gas by disposition code each month, Aug 2023 to Jul 2026. 98% of the gas went to a transmission line in the last 12 months. Flaring peaked at 57.7% of the gas in Jul 2024.Share of gas by disposition code0%50%100%Flared 57.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    98% · 156,067 mcf

  • Flared (4)

    1.5% · 2,400 mcf

  • Lease fuel (1)

    0.2% · 314 mcf

1.5% of the gas flared in the last 12 months. 4 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.

3 wells on this lease

Wells on PECK 20-29 SL
API numberWell no.Status
42-461-395871HAActive
42-461-402941HBActive
42-461-403162HAActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers100Apr 1, 2025–
Energy Transfer CompanyCasinghead gasBuys100Nov 21, 2015–
Energy Transfer CompanyCasinghead gasGathers100Nov 21, 2015–
Cp Energy, L.l.c.OilGathers100Feb 1, 2018Apr 1, 2025

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

Who buys my oilOil price check

490.40 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 Peck 20-29 SL
API numberWell no.Acreson the permit
42-461-403162HA490.40
42-461-402941HB490.40
42-461-395871HA490.40

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 PECK 20-29 SL
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P74383712,37812,3480$80.46$2.89
Jun 2026Diamondback E&P8888899,4859,4560$84.81$3.15
May 2026Diamondback E&P1,6771,60818,30518,2750$102.13$2.94
Apr 2026Diamondback E&P1,3291,27912,17212,1440$100.32$2.77
Mar 2026Diamondback E&P1,2581,52312,17810,2841,865$91.38$3.04
Feb 2026Diamondback E&P1,4371,51113,18913,1630$64.51$3.62
Jan 2026Diamondback E&P1,4911,00313,69713,6690$60.04$7.72
Dec 2025Diamondback E&P1,6971,78613,01612,92973$57.97$4.26
Nov 2025Diamondback E&P1,7611,67516,48716,138321$60.06$3.79
Oct 2025Diamondback E&P9131,1118,4698,4480$60.89$3.19
Sep 2025Diamondback E&P1,39294315,55915,392141$63.96$2.97
Aug 2025Diamondback E&P1,4561,60813,84613,8210$64.86$2.91
Jul 2025Diamondback E&P2,1792,24218,36318,3350$68.39$3.20
Jun 2025Diamondback E&P2,9272,69417,21817,1900$68.17$3.02
May 2025Diamondback E&P3,2073,36317,74717,7180$62.17$3.12
Apr 2025Diamondback E&P2,4462,2366,4246,38836$63.54$3.42
Mar 2025Diamondback E&P7235484304300$68.24$4.12
Feb 2025Diamondback E&P01000$71.53$4.19
Jan 2025Diamondback E&P67765650$75.74$4.13
Dec 2024Endeavor Energy8157551,5061,4600$70.12$3.01
Nov 2024Endeavor Energy98861,1361,0160$69.95$2.12
Oct 2024Endeavor Energy00000$71.99$2.20
Sep 2024Endeavor Energy036000$70.24$2.28
Aug 2024Endeavor Energy139110000$76.68$1.99
Jul 2024Endeavor Energy77704,0511,7132,338$81.80$2.07
Jun 2024Endeavor Energy00000$79.77$2.54
May 2024Endeavor Energy0145000$80.02$2.12
Apr 2024Endeavor Energy1,1201,08411,4218,870876$85.35$1.60
Mar 2024Endeavor Energy809898000$81.28$1.49
Feb 2024Endeavor Energy1,1381,14318,88317,305111$77.25$1.72
Jan 2024Endeavor Energy2,2282,23432,25629,871250$74.15$3.18
Dec 2023Endeavor Energy2,1082,26728,97925,2321,579$71.90$2.52
Nov 2023Endeavor Energy2,4872,40230,75528,397154$77.69$2.71
Oct 2023Endeavor Energy1,8521,86926,59024,40444$85.64$2.98
Sep 2023Endeavor Energy1,5401,65726,56424,30258$89.43$2.64
Aug 2023Endeavor Energy2,0952,08926,78224,6965$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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