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BILSKY-BILSKY-CHUMCHAL SA

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

1 well

29,400bbl oil, last 12 months−38% vs prior year
Operator
Marathon Oil Ef LLC
County
Gonzales County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-20721

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Where it sits

This county

Gonzales CountyGonzalesWilsonLavacaFayetteCaldwellBastropDe WittHaysGuadalupeGonzales County
Gonzales County
Gas, last 12 months
83,230 mcf
Oil in Jul 2026
2,435 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.

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 38% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 38% over the last 12 monthsMonthly oil production and gas for BILSKY-BILSKY-CHUMCHAL SA, Aug 2023 to Jul 2026. Oil output fell 38% over the last 12 months. 29,400 bbl in the 12 months through Jul 2026, against 47,591 bbl in the 12 months before.Last 12 months: 29,400 bblbbl per monthmcf per month005,0005,00010k10k15k15k20k20kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 38% over the last 12 monthsMonthly oil production and gas for BILSKY-BILSKY-CHUMCHAL SA, Aug 2023 to Jul 2026. Oil output fell 38% over the last 12 months. 29,400 bbl in the 12 months through Jul 2026, against 47,591 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005,0005,00010k10k15k15k20k20kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

83% 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)
83% of the gas went to a processing plant in the last 12 monthsShare of BILSKY-BILSKY-CHUMCHAL SA gas by disposition code each month, Aug 2023 to Jul 2026. 83% 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
83% of the gas went to a processing plant in the last 12 monthsShare of BILSKY-BILSKY-CHUMCHAL SA gas by disposition code each month, Aug 2023 to Jul 2026. 83% 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)

    83% · 69,110 mcf

  • Lease fuel (1)

    16% · 13,067 mcf

  • Flared (4)

    1.3% · 1,053 mcf

1.3% of the gas flared in the last 12 months. 7 months above 3%.

1 well on this lease

Wells on BILSKY-BILSKY-CHUMCHAL SA
API numberWell no.Status
42-177-345031HActive

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 gasGathers100Aug 1, 2022Sep 1, 2026
Marathon Oil Ef LLCCasinghead gasBuys100Aug 1, 2022Sep 1, 2026
Endeavor Crude, LLCOilGathers40Jan 1, 2024Sep 1, 2026
Enterprise Crude Oil LLCOilGathers20Aug 1, 2022Sep 1, 2026
Genesis Crude Oil, L.p.OilGathers20Jan 1, 2024Sep 1, 2026
Statewide Crude Inc.OilGathers20Jan 1, 2024Sep 1, 2026

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

Who buys my oilOil price check

1,019.28 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 Bilsky-Bilsky-Chumchal Sa
API numberWell no.Acreson the permit
42-177-345031H1,019.28

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 BILSKY-BILSKY-CHUMCHAL SA
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20262,4352,4835,2794,33123$80.46$2.89
Jun 20262,6412,6055,4644,53236$84.81$3.15
May 20262,1002,1173,8263,19039$102.13$2.94
Apr 20262,3222,3045,6464,67444$100.32$2.77
Mar 20262,8812,8736,6485,83053$91.38$3.04
Feb 20262,7262,7415,7375,03147$64.51$3.62
Jan 20262,5092,5465,5974,62283$60.04$7.72
Dec 20252,0752,0438,2266,23952$57.97$4.26
Nov 20252,0022,0248,6557,067142$60.06$3.79
Oct 20252,4912,4859,0827,509167$60.89$3.19
Sep 20252,4762,4469,5198,022218$63.96$2.97
Aug 20252,7422,7119,5518,063149$64.86$2.91
Jul 20251,7591,7999,2037,83956$68.39$3.20
Jun 20252,6532,67710,6639,18421$68.17$3.02
May 20253,1173,11110,8899,23233$62.17$3.12
Apr 20253,2733,2749,3197,904216$63.54$3.42
Mar 20253,5143,49910,3268,98548$68.24$4.12
Feb 20253,5443,5469,6488,48316$71.53$4.19
Jan 20254,2774,3409,9678,86130$75.74$4.13
Dec 20244,7694,80810,9649,62592$70.12$3.01
Nov 20244,8124,80410,0628,78276$69.95$2.12
Oct 20246,0115,93310,0228,89456$71.99$2.20
Sep 20246,0035,9577,9056,894255$70.24$2.28
Aug 20243,8593,7954,0673,620131$76.68$1.99
Jul 202461897167058451$81.80$2.07
Jun 20245,9645,86110,5619,013476$79.77$2.54
May 20246,2176,2739,7378,202446$80.02$2.12
Apr 20247,2027,22011,4649,775412$85.35$1.60
Mar 20247,0187,03011,3319,924168$81.28$1.49
Feb 20247,8327,79911,54610,231332$77.25$1.72
Jan 20248,7338,69113,65312,360217$74.15$3.18
Dec 20239,5649,63515,64214,339131$71.90$2.52
Nov 202310,26710,09213,84812,670131$77.69$2.71
Oct 20239,7599,85613,29811,957339$85.64$2.98
Sep 202310,52310,51914,36512,759616$89.43$2.64
Aug 202313,07213,09719,50517,884442$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

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

Marathon Oil Ef LLC in Gonzales County

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