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Texas oil lease

Producing

GRANTHAM EAST UNIT

Grantham East Unit is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

9 wells

163,628bbl oil, last 12 months−31% vs prior year
Operator
Diamondback E&P LLC
County
Martin County
Field
Spraberry (Trend Area)
RRC lease
08-56790

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County
Gas, last 12 months
1,302,683 mcf
Oil in Jul 2026
10,813 bbl

Checks stopped on this lease?

  • Buyer

    Buyer changed: ET GATHERING & PROCESSING LLC replaced ETC GAS PROCESSING, LLC as the buyer of this lease's gas from oil wells on Mar 1, 2026.

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

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Production by month

Oil output fell 31% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 31% over the last 12 monthsMonthly oil production and gas for GRANTHAM EAST UNIT, Aug 2023 to Jul 2026. Oil output fell 31% over the last 12 months. 163,628 bbl in the 12 months through Jul 2026, against 237,899 bbl in the 12 months before.Last 12 months: 163,628 bblbbl per monthmcf per month0020k50k40k100k60k150k80k200kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 31% over the last 12 monthsMonthly oil production and gas for GRANTHAM EAST UNIT, Aug 2023 to Jul 2026. Oil output fell 31% over the last 12 months. 163,628 bbl in the 12 months through Jul 2026, against 237,899 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0020k50k40k100k60k150k80k200kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

99% of the gas went to a transmission line in the last 12 months

Flaring peaked at 93.7% of the gas in Mar 2024.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
99% of the gas went to a transmission line in the last 12 monthsShare of GRANTHAM EAST UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a transmission line in the last 12 months. Flaring peaked at 93.7% of the gas in Mar 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 93.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
99% of the gas went to a transmission line in the last 12 monthsShare of GRANTHAM EAST UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a transmission line in the last 12 months. Flaring peaked at 93.7% of the gas in Mar 2024.Share of gas by disposition code0%50%100%Flared 93.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    99% · 1,292,439 mcf

  • Flared (4)

    0.7% · 9,283 mcf

  • Lease fuel (1)

    0.1% · 961 mcf

0.7% of the gas flared in the last 12 months. 11 months above 3%.

9 wells on this lease

Wells on GRANTHAM EAST UNIT
API numberWell no.Status
42-317-438201WAActive
42-317-438812WAActive
42-317-438821WBActive
42-317-438831LSActive
42-317-438842LSActive
42-317-438863WAActive
42-317-438873WBActive
42-317-438883LSActive
42-317-438894WAActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Et-S Permian Pipeline Company LlOilGathers100Mar 1, 2026–
Et Gathering & Processing LLCCasinghead gasBuys100Mar 1, 2026–
Energy Transfer CompanyCasinghead gasGathers100Aug 1, 2024–
Etc Gas Processing, LLCCasinghead gasBuys100Aug 1, 2024Mar 1, 2026
Energy Transfer CompanyOilGathers100Feb 1, 2025Mar 1, 2026
Nustar Permian Trans and Stg,llcOilGathers100Mar 25, 2022Feb 1, 2025
Wtg Gas Processing, LLCCasinghead gasGathers100Aug 30, 2022Aug 1, 2024
Wtg Gas Processing, LLCCasinghead gasBuys100Aug 30, 2022Aug 1, 2024
Wtg Gas Processing, L.p.Casinghead gasGathers100Apr 12, 2022Aug 30, 2022

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

Who buys my oilOil price check

639.65 acres on the newest permit

  • Good to know

    9 wells are listed on this lease

    Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

  • 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 Grantham East Unit
API numberWell no.Acreson the permit
42-317-438894WA639.65
42-317-438863WA639.65
42-317-438873WB639.65
42-317-438883LS639.65
42-317-438842LS639.65
42-317-438812WA639.65
42-317-438821WB639.65
42-317-438831LS639.65
42-317-438201WA639.65

SourceRailroad Commission drilling permits, Sep 26, 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 GRANTHAM EAST UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202610,81310,763106,080105,9950$80.46$2.89
Jun 202610,70410,852105,495105,4120$84.81$3.15
May 202613,88413,710109,228109,1470$102.13$2.94
Apr 202610,46610,58783,35583,2810$100.32$2.77
Mar 20268,3468,24678,56378,4970$91.38$3.04
Feb 202610,91510,88391,20091,1310$64.51$3.62
Jan 202611,18910,992106,59897,2369,283$60.04$7.72
Dec 202517,41617,485139,741139,6520$57.97$4.26
Nov 202517,41817,495112,165112,0900$60.06$3.79
Oct 202515,73416,030112,589112,5090$60.89$3.19
Sep 202518,50618,052116,308116,2280$63.96$2.97
Aug 202518,23718,169141,361141,2610$64.86$2.91
Jul 202522,27422,353157,628157,5310$68.39$3.20
Jun 202523,93623,971149,228149,1350$68.17$3.02
May 202523,26623,274143,040142,307643$62.17$3.12
Apr 202523,28123,242116,367116,26333$63.54$3.42
Mar 202522,32322,31196,79896,137598$68.24$4.12
Feb 202519,90719,86690,40289,859491$71.53$4.19
Jan 202520,04820,04595,16894,416698$75.74$4.13
Dec 202420,40820,39092,02782,8059,173$70.12$3.01
Nov 202417,08817,09680,39163,71816,631$69.95$2.12
Oct 202414,80414,76670,04665,3014,709$71.99$2.20
Sep 202415,48115,56965,25965,14085$70.24$2.28
Aug 202415,08315,02058,54357,024433$76.68$1.99
Jul 202415,25715,20349,53946,316260$81.80$2.07
Jun 20248,6648,65529,06322,2643,805$79.77$2.54
May 20243,0993,09722,28916,4973,259$80.02$2.12
Apr 20242,0562,4719,7087,382865$85.35$1.60
Mar 202449753649017459$81.28$1.49
Feb 202419,10019,20176,45066,8649,390$77.25$1.72
Jan 202431,10931,125129,084126,1372,730$74.15$3.18
Dec 202337,55537,496155,086154,8690$71.90$2.52
Nov 202339,57039,560158,365158,08867$77.69$2.71
Oct 202344,26944,259165,827149,73215,878$85.64$2.98
Sep 202345,78845,773162,290161,972108$89.43$2.64
Aug 202355,48955,538183,915168,24815,450$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)CountyMartin County

Diamondback E&P LLC in Martin County

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Spraberry (Trend Area) field

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