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Producing

HEFLEY-FILLINGIM 39-40 MD CX

Hefley-Fillingim 39-40 MD CX is a gas well in Hemphill County, Texas, operated by Mmgl Txph, LLC in the Buffalo Wallow (Granite Wash) field.

1 well

235,337mcf gas, last 12 months−37% vs prior year
Operator
Mmgl Txph, LLC
County
Hemphill County
Field
Buffalo Wallow (Granite Wash)
RRC lease
10-290828

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Where it sits

This county

Hemphill CountyHemphillLipscombRobertsOchiltreeHemphill County
Hemphill County
Oil, last 12 months
3,807 bbl
Gas in Jul 2026
17,662 mcf

Production by month

Gas output fell 37% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 37% over the last 12 monthsMonthly gas production and oil for HEFLEY-FILLINGIM 39-40 MD CX, Aug 2023 to Jul 2026. Gas output fell 37% over the last 12 months. 235,337 mcf in the 12 months through Jul 2026, against 376,079 mcf in the 12 months before.Last 12 months: 235,337 mcfmcf per monthbbl per month0020k25040k50060k75080k1,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 37% over the last 12 monthsMonthly gas production and oil for HEFLEY-FILLINGIM 39-40 MD CX, Aug 2023 to Jul 2026. Gas output fell 37% over the last 12 months. 235,337 mcf in the 12 months through Jul 2026, against 376,079 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month0020k25040k50060k75080k1,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

  • Transmission line (2)
  • Lease fuel (1)
All of the gas went to a transmission line in the last 12 monthsShare of HEFLEY-FILLINGIM 39-40 MD CX gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the last 12 monthsShare of HEFLEY-FILLINGIM 39-40 MD CX gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Who has run this lease

The operator changed once, most recently in Oct 2023

Operators of this lease over timeBlackbeard Operating, LLC, Oct 2020 to Sep 2023; Mmgl Txph, LLC, Oct 2023 to Jul 2026202120222023202420252026Changed Oct 2023Blackbeard Operating, LLCOct 2020 to Sep 2023Mmgl Txph, LLCOct 2023 to now
Operators of this lease over timeBlackbeard Operating, LLC, Oct 2020 to Sep 2023; Mmgl Txph, LLC, Oct 2023 to Jul 2026202120222023202420252026Changed Oct 2023Blackbeard Operating, LLCOct 2020 to Sep 2023Mmgl Txph, LLCOct 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on HEFLEY-FILLINGIM 39-40 MD CX
API numberWell no.Status
42-211-356372HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Eastex Crude Company, LLCCondensateGathers20Nov 1, 2023–
Energy Transfer CompanyCondensateGathers20Nov 1, 2023–
Kimrad Transport, LPCondensateGathers20Nov 1, 2023–
Plains Marketing, L.p.CondensateGathers20Nov 1, 2023–
Sunoco Pipeline L.p.CondensateGathers10Jan 1, 2023–
Valero Marketing and Supply Co.CondensateGathers10Jan 1, 2023–
Mmgl Txph, LLCGas-well gasBuys100Nov 1, 2023–
Mmgl Txph, LLCGas-well gasGathers100Nov 1, 2023–
Eastex Crude Company, LLCCondensateGathers50Jan 1, 2023Nov 1, 2023
Energy Transfer CompanyCondensateGathers10Jan 1, 2023Nov 1, 2023
Kimrad Transport, LPCondensateGathers10Jan 1, 2023Nov 1, 2023
Plains Marketing, L.p.CondensateGathers10Jan 1, 2023Nov 1, 2023
Dcp Operating Company, LPGas-well gasGathers20Jan 1, 2023Nov 1, 2023
Energy Transfer CompanyGas-well gasGathers20Jan 1, 2023Nov 1, 2023

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

Who buys my oilOil price check

1,400 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 Hefley-Fillingim 39-40 MD CX
API numberWell no.Acreson the permit
42-211-356372H1,400

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for HEFLEY-FILLINGIM 39-40 MD CX
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Mmgl Txph,27618017,66217,6620$80.46$2.89
Jun 2026Mmgl Txph,29236215,50915,5090$84.81$3.15
May 2026Mmgl Txph,33718117,50817,5080$102.13$2.94
Apr 2026Mmgl Txph,36954017,27317,2730$100.32$2.77
Mar 2026Mmgl Txph,44935418,86218,8620$91.38$3.04
Feb 2026Mmgl Txph,34435814,27014,2700$64.51$3.62
Jan 2026Mmgl Txph,36636719,74519,7450$60.04$7.72
Dec 2025Mmgl Txph,34036719,77219,7720$57.97$4.26
Nov 2025Mmgl Txph,31717020,05020,0500$60.06$3.79
Oct 2025Mmgl Txph,29231620,78920,7890$60.89$3.19
Sep 2025Mmgl Txph,18315825,44625,4460$63.96$2.97
Aug 2025Mmgl Txph,24235228,45128,4510$64.86$2.91
Jul 2025Mmgl Txph,23716830,92030,9200$68.39$3.20
Jun 2025Mmgl Txph,24553629,67629,6760$68.17$3.02
May 2025Mmgl Txph,262030,74630,7460$62.17$3.12
Apr 2025Mmgl Txph,27834329,81829,8180$63.54$3.42
Mar 2025Mmgl Txph,31516831,13731,1370$68.24$4.12
Feb 2025Mmgl Txph,32454628,97228,9720$71.53$4.19
Jan 2025Mmgl Txph,51056031,05731,0570$75.74$4.13
Dec 2024Mmgl Txph,55037330,47630,4760$70.12$3.01
Nov 2024Mmgl Txph,50154430,42830,4280$69.95$2.12
Oct 2024Mmgl Txph,40752432,76032,7600$71.99$2.20
Sep 2024Mmgl Txph,44634830,55030,5500$70.24$2.28
Aug 2024Mmgl Txph,52854439,53939,5390$76.68$1.99
Jul 2024Mmgl Txph,38536040,09940,0990$81.80$2.07
Jun 2024Mmgl Txph,36936639,61139,6110$79.77$2.54
May 2024Mmgl Txph,51652141,72541,7250$80.02$2.12
Apr 2024Mmgl Txph,54755541,12841,1280$85.35$1.60
Mar 2024Mmgl Txph,52354844,19344,1930$81.28$1.49
Feb 2024Mmgl Txph,54554942,87842,8780$77.25$1.72
Jan 2024Mmgl Txph,73370846,91146,9110$74.15$3.18
Dec 2023Mmgl Txph,72570648,81048,8100$71.90$2.52
Nov 2023Mmgl Txph,62854448,51848,5180$77.69$2.71
Oct 2023Mmgl Txph,63388651,21051,2100$85.64$2.98
Sep 2023Blackbeard Operating,58472250,37150,3640$89.43$2.64
Aug 2023Blackbeard Operating,93453952,46452,4640$81.39$2.58

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

OperatorMmgl Txph, LLCFieldBuffalo Wallow (Granite Wash)CountyHemphill County

Mmgl Txph, LLC in Hemphill County

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Buffalo Wallow (Granite Wash) field

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