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Texas oil lease

Producing

UL MASON UNIT

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

4 wells

29,505bbl oil, last 12 months−32% vs prior year
Operator
Diamondback E&P LLC
County
Andrews County
Field
Spraberry (Trend Area)
RRC lease
08-45925

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Where it sits

This county

Andrews CountyAndrewsMartinGainesDawsonAndrews County
Andrews County
Gas, last 12 months
85,027 mcf
Oil in Jul 2026
1,625 bbl

Production by month

Oil output fell 32% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for UL MASON UNIT, Aug 2023 to Jul 2026. Oil output fell 32% over the last 12 months. 29,505 bbl in the 12 months through Jul 2026, against 43,628 bbl in the 12 months before.Last 12 months: 29,505 bblbbl per monthmcf per month001,0002,5002,0005,0003,0007,5004,00010k5,00012.5kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for UL MASON UNIT, Aug 2023 to Jul 2026. Oil output fell 32% over the last 12 months. 29,505 bbl in the 12 months through Jul 2026, against 43,628 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,5002,0005,0003,0007,5004,00010k5,00012.5kJan 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 3.1% of the gas in Aug 2025.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
99% of the gas went to a transmission line in the last 12 monthsShare of UL MASON 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 3.1% of the gas in Aug 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 3.1%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
99% of the gas went to a transmission line in the last 12 monthsShare of UL MASON 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 3.1% of the gas in Aug 2025.Share of gas by disposition code0%50%100%Flared 3.1%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    99% · 84,027 mcf

  • Lease fuel (1)

    0.6% · 518 mcf

  • Flared (4)

    0.6% · 482 mcf

0.6% of the gas flared in the last 12 months. One month above 3%.

4 wells on this lease

Wells on UL MASON UNIT
API numberWell no.Status
42-003-457761HActive
42-003-463152LSActive
42-003-472016LSActive
42-003-472027LSActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Oryx Midland Oil Gathering LLCOilGathers100Apr 1, 2026–
Oneok Midland Midstream, LLCCasinghead gasBuys100Apr 1, 2026–
Enlink Permian, LLCCasinghead gasGathers100Apr 1, 2026–
Enlink Midstream Services, LLCCasinghead gasGathers100Jul 1, 2021Apr 1, 2026
Coronado Midstream LLCCasinghead gasBuys100Jul 1, 2021Apr 1, 2026
Eastex Crude Company, LLCOilGathers25Jan 1, 2023Apr 1, 2026
Explore Logistics LLCOilGathers25Jul 1, 2021Apr 1, 2026
Oryx Midland Oil Gathering LLCOilGathers50May 1, 2021Apr 1, 2026
Eastex Crude CompanyOilGathers25Jul 1, 2021Jan 1, 2023

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

Who buys my oilOil price check

480 acres on the newest permit

The wells on this lease state different acreage

The permits state between 254.4 and 480 acres.

Permits for Ul Mason Unit
API numberWell no.Acreson the permit
42-003-472016LS480
42-003-472027LS480
42-003-463152LS385.18
42-003-457761H254.40

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 UL MASON UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261,6251,7024,5544,42281$80.46$2.89
Jun 20262,0642,0085,6005,47849$84.81$3.15
May 20261,9821,8944,5874,5200$102.13$2.94
Apr 20261,6151,6405,0314,9940$100.32$2.77
Mar 20262,8722,8958,1818,1460$91.38$3.04
Feb 20262,5952,6356,4776,4490$64.51$3.62
Jan 20262,9272,8758,1628,06262$60.04$7.72
Dec 20252,8092,8588,1978,1610$57.97$4.26
Nov 20252,8542,8167,8717,8360$60.06$3.79
Oct 20252,6752,6338,7608,7220$60.89$3.19
Sep 20252,5572,5568,3918,3530$63.96$2.97
Aug 20252,9302,9869,2168,884290$64.86$2.91
Jul 20253,1383,1049,6629,6140$68.39$3.20
Jun 20253,1083,1109,0978,99652$68.17$3.02
May 20253,4153,4778,7108,6610$62.17$3.12
Apr 20253,7023,63310,68110,6310$63.54$3.42
Mar 20253,8253,9159,8609,8110$68.24$4.12
Feb 20253,1993,1748,8868,8380$71.53$4.19
Jan 20253,9133,84011,24511,1970$75.74$4.13
Dec 20243,7463,86312,15712,1130$70.12$3.01
Nov 20243,4963,4089,4329,3970$69.95$2.12
Oct 20243,8243,95410,43210,3940$71.99$2.20
Sep 20244,1824,05010,66610,6230$70.24$2.28
Aug 20244,0804,0799,1769,1370$76.68$1.99
Jul 20243,2493,3356,2896,2600$81.80$2.07
Jun 20243,1133,0086,1056,02353$79.77$2.54
May 20243,1253,1577,1347,07919$80.02$2.12
Apr 20244,1484,1869,5049,4610$85.35$1.60
Mar 20244,1214,0979,6089,5640$81.28$1.49
Feb 20243,5203,4987,7367,6790$77.25$1.72
Jan 20242,7612,8236,8116,70355$74.15$3.18
Dec 20234,3194,2568,3958,3330$71.90$2.52
Nov 20234,0014,0289,3209,2600$77.69$2.71
Oct 20233,5103,5616,8236,69378$85.64$2.98
Sep 20233,8043,72910,11710,0500$89.43$2.64
Aug 20234,0574,05710,77110,7040$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)CountyAndrews County

Diamondback E&P LLC in Andrews County

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Spraberry (Trend Area) field

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