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Texas oil lease

Producing

HALL-MANNING SA8

Hall-Manning Sa8 is an oil lease in Gonzales County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field.

1 well

9,630bbl oil, last 12 months−66% vs prior year
Operator
Marathon Oil Ef LLC
County
Gonzales County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-20558

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Where it sits

This county

Gonzales CountyGonzalesWilsonLavacaFayetteCaldwellBastropDe WittHaysGuadalupeGonzales County
Gonzales County
Gas, last 12 months
21,263 mcf
Oil in Jul 2026
20 bbl

Checks stopped on this lease?

  • Buyer

    Buyer changed: ENERGY TRANSFER COMPANY replaced MARATHON OIL EF LLC as the buyer of this lease's gas from oil wells on Sep 1, 2026.

  • Sales

    Sales over the last 3 months fell to 3% of the 9 months before.

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

See why checks stop on this lease

Production by month

Oil output fell 66% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 66% over the last 12 monthsMonthly oil production and gas for HALL-MANNING SA8, Aug 2023 to Jul 2026. Oil output fell 66% over the last 12 months. 9,630 bbl in the 12 months through Jul 2026, against 28,256 bbl in the 12 months before.Last 12 months: 9,630 bblbbl per monthmcf per month001,0002,5002,0005,0003,0007,5004,00010k5,00012.5kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 66% over the last 12 monthsMonthly oil production and gas for HALL-MANNING SA8, Aug 2023 to Jul 2026. Oil output fell 66% over the last 12 months. 9,630 bbl in the 12 months through Jul 2026, against 28,256 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

84% of the gas went to a processing plant in the last 12 months

Flaring peaked at 7.6% of the gas in Jul 2024.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
84% of the gas went to a processing plant in the last 12 monthsShare of HALL-MANNING SA8 gas by disposition code each month, Aug 2023 to Jul 2026. 84% of the gas went to a processing plant in the last 12 months. Flaring peaked at 7.6% of the gas in Jul 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 7.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
84% of the gas went to a processing plant in the last 12 monthsShare of HALL-MANNING SA8 gas by disposition code each month, Aug 2023 to Jul 2026. 84% of the gas went to a processing plant in the last 12 months. Flaring peaked at 7.6% of the gas in Jul 2024.Share of gas by disposition code0%50%100%Flared 7.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    84% · 17,876 mcf

  • Lease fuel (1)

    15% · 3,089 mcf

  • Flared (4)

    1.4% · 298 mcf

1.4% of the gas flared in the last 12 months. 6 months above 3%.

1 well on this lease

Wells on HALL-MANNING SA8
API numberWell no.Status
42-177-344588HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Mv Purchasing, LLCOilGathers34Sep 1, 2026–
Plains Marketing, L.p.OilGathers33Sep 1, 2026–
Shell Trading (Us) CompanyOilGathers33Sep 1, 2026–
Energy Transfer CompanyCasinghead gasBuys100Sep 1, 2026–
Ensign Natural Resources II LLCCasinghead gasGathers100Sep 1, 2026–
Marathon Oil Ef LLCCasinghead gasGathers100Feb 4, 2022Sep 1, 2026
Marathon Oil Ef LLCCasinghead gasBuys100Feb 4, 2022Sep 1, 2026
Enterprise Crude Oil LLCOilGathers25Jul 1, 2022Sep 1, 2026
Harvest Midstream CompanyOilGathers25Jul 1, 2022Sep 1, 2026
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022Sep 1, 2026
Trafigura Trading LLCOilGathers25Jul 1, 2022Sep 1, 2026

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

Who buys my oilOil price check

2,259.65 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

  • 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 Hall-Manning Sa8
API numberWell no.Acreson the permit
42-177-344588H2,259.65

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

What ConocoPhillips told investors it received

Marathon Oil Ef LLC is linked to ConocoPhillips (MRO).
Realized prices reported by ConocoPhillips
QuarterOil$ per bblFiling
Q2 2026$99.40SEC filing
Q1 2026$73.47SEC filing
Q3 2025$66.13SEC filing
Q2 2025$64.23SEC filing
Q1 2025$71.65SEC filing

SourceConocoPhillips quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for HALL-MANNING SA8
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026201912100$80.46$2.89
Jun 202624110$84.81$3.15
May 2026537848400$102.13$2.94
Apr 20265605585814805$100.32$2.77
Mar 20267737939218077$91.38$3.04
Feb 20261,4141,3844,9414,32841$64.51$3.62
Jan 20263834016,7955,605101$60.04$7.72
Dec 20254894765764354$57.97$4.26
Nov 20253824514803918$60.06$3.79
Oct 20251,7281,7252,0811,71738$60.89$3.19
Sep 20251,7461,7302,5272,12558$63.96$2.97
Aug 20252,0802,1052,3001,93736$64.86$2.91
Jul 20252,7462,7412,4712,10215$68.39$3.20
Jun 20252,3642,3662,3191,9945$68.17$3.02
May 20252,3062,2882,6732,2638$62.17$3.12
Apr 20252,0462,0813,5453,00082$63.54$3.42
Mar 20253,1993,1879,4088,17044$68.24$4.12
Feb 20253,2613,28510,0578,82916$71.53$4.19
Jan 20254,8004,74710,4809,30131$75.74$4.13
Dec 20241,9131,8752,0261,77617$70.12$3.01
Nov 20246836869057897$69.95$2.12
Oct 20249909951,0409216$71.99$2.20
Sep 20241,8511,8552,8882,51493$70.24$2.28
Aug 20242,0972,0972,1301,89368$76.68$1.99
Jul 20241,9752,0332,1871,905166$81.80$2.07
Jun 20241,6211,6162,3722,024107$79.77$2.54
May 20242,2472,2461,9751,66490$80.02$2.12
Apr 20242,1222,1381,9921,69872$85.35$1.60
Mar 20242,2852,2773,3282,91549$81.28$1.49
Feb 20242,2862,2693,0112,84043$77.25$1.72
Jan 20242,3352,3331,7191,63514$74.15$3.18
Dec 20232,8852,8812,4262,31911$71.90$2.52
Nov 20232,3492,3192,7132,59114$77.69$2.71
Oct 20232,8232,8523,1012,93442$85.64$2.98
Sep 20233,0883,0722,8472,66570$89.43$2.64
Aug 20233,0633,0712,5392,40736$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

OperatorMarathon Oil Ef LLCFieldEagleville (Eagle Ford-1)CountyGonzales County

Marathon Oil Ef LLC in Gonzales County

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Eagleville (Eagle Ford-1) field

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