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Texas oil lease

Producing

COX, THELMA

Cox, Thelma is an oil lease in Dawson County, Texas, operated by Magnum Engineering Company in the Ackerly (Dean Sand) field.

1 well

2,385bbl oil, last 12 months+13% vs prior year
Operator
Magnum Engineering Company
County
Dawson County
Field
Ackerly (Dean Sand)
RRC lease
8A-18470

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Where it sits

This county

Dawson CountyDawsonGainesLynnGarzaAndrewsTerryBordenDawson County
Dawson County
Oil in Jul 2026
139 bbl
Reporting since
Jan 2020

Production by month

Oil output rose 13% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output rose 13% over the last 12 monthsMonthly oil production for COX, THELMA, Aug 2023 to Jul 2026. Oil output rose 13% over the last 12 months. 2,385 bbl in the 12 months through Jul 2026, against 2,109 bbl in the 12 months before.Last 12 months: 2,385 bblbbl per month0200400600800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 13% over the last 12 monthsMonthly oil production for COX, THELMA, Aug 2023 to Jul 2026. Oil output rose 13% over the last 12 months. 2,385 bbl in the 12 months through Jul 2026, against 2,109 bbl in the 12 months before.Last 12 monthsbbl per month0200400600800Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

1 well on this lease

Wells on COX, THELMA
API numberWell no.Status
42-115-102551Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Trans Crude Marketing LLCOilGathers50Apr 1, 2026–
Gulfmark Energy, Inc.OilGathers50Apr 1, 2026–
Explore Logistics LLCOilGathers100Nov 1, 2023Apr 1, 2026
Ace Gathering, Inc.OilGathers50Jan 1, 2023Nov 1, 2023
Bml, Inc. BOilGathers50Jan 1, 2023Nov 1, 2023
Ace Gathering, Inc.OilGathers100Apr 1, 2019Jan 1, 2023
Wtg Gas Processing, L.p.Casinghead gasGathers100Jul 1, 2000Apr 1, 2019
Wtg Gas Processing, L.p.Casinghead gasBuys100Jul 1, 2000Apr 1, 2019

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

Who buys my oilOil price check

What the drilling permits say

Permits for Cox, Thelma
API numberWell no.Acreson the permit
42-115-102551–

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for COX, THELMA
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026139170$80.46$2.89
Jun 2026122178$84.81$3.15
May 20261470$102.13$2.94
Apr 2026158177$100.32$2.77
Mar 2026820$91.38$3.04
Feb 202600$64.51$3.62
Jan 2026143161$60.04$7.72
Dec 2025190185$57.97$4.26
Nov 2025218354$60.06$3.79
Oct 2025301179$60.89$3.19
Sep 2025440522$63.96$2.97
Aug 2025445367$64.86$2.91
Jul 2025362708$68.39$3.20
Jun 2025527184$68.17$3.02
May 202595170$62.17$3.12
Apr 2025670$63.54$3.42
Mar 2025134136$68.24$4.12
Feb 2025116192$71.53$4.19
Jan 2025130189$75.74$4.13
Dec 20241350$70.12$3.01
Nov 2024136187$69.95$2.12
Oct 2024130182$71.99$2.20
Sep 20241340$70.24$2.28
Aug 2024143189$76.68$1.99
Jul 2024146187$81.80$2.07
Jun 2024137187$79.77$2.54
May 20241450$80.02$2.12
Apr 2024143192$85.35$1.60
Mar 2024146176$81.28$1.49
Feb 2024212187$77.25$1.72
Jan 2024107190$74.15$3.18
Dec 2023169187$71.90$2.52
Nov 20231350$77.69$2.71
Oct 2023176174$85.64$2.98
Sep 2023140239$89.43$2.64
Aug 2023148158$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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Nearby

This lease belongs to

OperatorMagnum Engineering CompanyFieldAckerly (Dean Sand)CountyDawson County

Magnum Engineering Company in Dawson County

No other producing leases from this operator in this county are in our data yet.

Ackerly (Dean Sand) field

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