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Texas oil lease

Producing

UL MUSTANG 13

Ul Mustang 13 is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

4 wells

36,422bbl oil, last 12 months−17% vs prior year
Operator
Diamondback E&P LLC
County
Martin County
Field
Spraberry (Trend Area)
RRC lease
08-48320

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County
Gas, last 12 months
140,556 mcf
Oil in Jul 2026
3,316 bbl

Checks stopped on this lease?

  • Buyer

    Buyer changed: ONEOK MIDLAND MIDSTREAM, LLC replaced CORONADO MIDSTREAM LLC as the buyer of this lease's gas from oil wells on Apr 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 17% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 17% over the last 12 monthsMonthly oil production and gas for UL MUSTANG 13, Aug 2023 to Jul 2026. Oil output fell 17% over the last 12 months. 36,422 bbl in the 12 months through Jul 2026, against 43,978 bbl in the 12 months before.Last 12 months: 36,422 bblbbl per monthmcf per month002,0005,0004,00010k6,00015k8,00020k10k25kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 17% over the last 12 monthsMonthly oil production and gas for UL MUSTANG 13, Aug 2023 to Jul 2026. Oil output fell 17% over the last 12 months. 36,422 bbl in the 12 months through Jul 2026, against 43,978 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0005,0004,00010k6,00015k8,00020k10k25kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

95% of the gas went to a transmission line in the last 12 months

Flaring peaked at 19.7% of the gas in Nov 2025.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
95% of the gas went to a transmission line in the last 12 monthsShare of UL MUSTANG 13 gas by disposition code each month, Aug 2023 to Jul 2026. 95% of the gas went to a transmission line in the last 12 months. Flaring peaked at 19.7% of the gas in Nov 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 19.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
95% of the gas went to a transmission line in the last 12 monthsShare of UL MUSTANG 13 gas by disposition code each month, Aug 2023 to Jul 2026. 95% of the gas went to a transmission line in the last 12 months. Flaring peaked at 19.7% of the gas in Nov 2025.Share of gas by disposition code0%50%100%Flared 19.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    95% · 132,997 mcf

  • Flared (4)

    3.9% · 5,414 mcf

  • Lease fuel (1)

    1.5% · 2,145 mcf

3.9% of the gas flared in the last 12 months. 7 months above 3%.

4 wells on this lease

Wells on UL MUSTANG 13
API numberWell no.Status
42-317-40357241Active
42-317-40391261Active
42-317-405274Active
42-317-405283Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Transoil Marketing, LLCOilGathers100Aug 1, 2025–
Oneok Midland Midstream, LLCCasinghead gasBuys100Apr 1, 2026–
Enlink Permian, LLCCasinghead gasGathers100Apr 1, 2026–
Enlink Midstream Services, LLCCasinghead gasGathers100Aug 1, 2025Apr 1, 2026
Coronado Midstream LLCCasinghead gasBuys100Aug 1, 2025Apr 1, 2026
Enlink North Texas Gathering, LPCasinghead gasGathers100May 31, 2016Aug 1, 2025
Enlink Gas Marketing, LPCasinghead gasBuys100Nov 1, 2018Aug 1, 2025
Plains Marketing, L.p.OilGathers100Nov 1, 2018Aug 1, 2025

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

Who buys my oilOil price check

320 acres on the newest permit

  • Good to know

    The wells on this lease state different acreage

    The permits state between 319.84 and 320 acres. Use the acres from your own division order for the well you are paid on.

Check your decimal on this lease
Permits for Ul Mustang 13
API numberWell no.Acreson the permit
42-317-405274320
42-317-405283320
42-317-40391261319.84
42-317-40357241319.84

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 UL MUSTANG 13
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20263,3163,24516,15014,967997$80.46$2.89
Jun 20263,4253,62116,44314,9061,357$84.81$3.15
May 20264,0113,93617,62417,4380$102.13$2.94
Apr 20264,2844,20117,40917,14188$100.32$2.77
Mar 20262,5072,4298,9428,7920$91.38$3.04
Feb 20261,9472,0356,2676,0990$64.51$3.62
Jan 20262,3772,2038,0977,584327$60.04$7.72
Dec 20252,7612,75010,28010,0940$57.97$4.26
Nov 20252,3542,47210,4428,2022,060$60.06$3.79
Oct 20253,5344,08512,71012,298226$60.89$3.19
Sep 20253,5092,9668,9898,8090$63.96$2.97
Aug 20252,3972,2787,2036,667359$64.86$2.91
Jul 20252,5692,7807,3877,2220$68.39$3.20
Jun 20252,6922,82810,1379,9730$68.17$3.02
May 20253,2203,16512,81412,6440$62.17$3.12
Apr 20253,6903,18512,98612,327565$63.54$3.42
Mar 20253,5033,65113,76612,3291,343$68.24$4.12
Feb 20254,6344,83513,89513,7410$71.53$4.19
Jan 20253,0522,88113,11612,9420$75.74$4.13
Dec 20243,0673,28810,54310,3760$70.12$3.01
Nov 20243,9683,68412,97912,8200$69.95$2.12
Oct 20244,9545,05318,44618,3610$71.99$2.20
Sep 20243,8994,02515,67115,5710$70.24$2.28
Aug 20244,7304,58919,64419,4710$76.68$1.99
Jul 20245,7205,69821,70421,5310$81.80$2.07
Jun 20244,7305,01717,55817,075314$79.77$2.54
May 20245,1305,12716,87116,514185$80.02$2.12
Apr 20244,9924,87816,21016,0450$85.35$1.60
Mar 20244,6064,67215,36215,1970$81.28$1.49
Feb 20243,5723,4609,5799,4230$77.25$1.72
Jan 20243,8233,65512,62112,4520$74.15$3.18
Dec 20234,4314,45114,84614,6750$71.90$2.52
Nov 20233,8993,99512,02211,8470$77.69$2.71
Oct 20233,9603,95410,78310,6030$85.64$2.98
Sep 20234,1704,35413,37513,1980$89.43$2.64
Aug 20235,0304,94615,41115,2260$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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Nearby

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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