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Texas oil lease

Producing

SHANNON EFS

Shannon Efs is an oil lease in McMullen County, Texas, operated by Crescent Energy Operating, LLC in the Eagleville (Eagle Ford-1) field.

7 wells

50,872bbl oil, last 12 months−26% vs prior year
Operator
Crescent Energy Operating, LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16859

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Where it sits

This county

McMullen CountyMcMullenLa SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
43,580 mcf
Oil in Jul 2026
4,644 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Crescent Energy Operating, LLC took over from Silverbow Resources Oper, LLC in Jun 2026.

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

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Production by month

Oil output fell 26% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 26% over the last 12 monthsMonthly oil production and gas for SHANNON EFS, Aug 2023 to Jul 2026. Oil output fell 26% over the last 12 months. 50,872 bbl in the 12 months through Jul 2026, against 69,029 bbl in the 12 months before.Last 12 months: 50,872 bblbbl per monthmcf per month005,00010k10k20k15k30k20k40kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 26% over the last 12 monthsMonthly oil production and gas for SHANNON EFS, Aug 2023 to Jul 2026. Oil output fell 26% over the last 12 months. 50,872 bbl in the 12 months through Jul 2026, against 69,029 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005,00010k10k20k15k30k20k40kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

57% of the gas went to a processing plant in the last 12 months

Flaring peaked at 48.0% of the gas in Jan 2026.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
57% of the gas went to a processing plant in the last 12 monthsShare of SHANNON EFS gas by disposition code each month, Aug 2023 to Jul 2026. 57% of the gas went to a processing plant in the last 12 months. Flaring peaked at 48.0% of the gas in Jan 2026.Share of the lease’s gas by disposition code, per month0%50%100%Flared 48.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
57% of the gas went to a processing plant in the last 12 monthsShare of SHANNON EFS gas by disposition code each month, Aug 2023 to Jul 2026. 57% of the gas went to a processing plant in the last 12 months. Flaring peaked at 48.0% of the gas in Jan 2026.Share of gas by disposition code0%50%100%Flared 48.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    57% · 24,701 mcf

  • Lease fuel (1)

    23% · 10,170 mcf

  • Flared (4)

    20% · 8,709 mcf

20.0% of the gas flared in the last 12 months. 36 months above 3%.

Who has run this lease

The operator changed 2 times, most recently in Jun 2026

Operators of this lease over timeSea Eagle Ford, LLC, Jan 2020 to Jun 2022; Silverbow Resources Oper, LLC, Jul 2022 to May 2026; Crescent Energy Operating, LLC, Jun 2026 to Jul 20262020202120222023202420252026Changed Jul 2022Changed Jun 2026Sea Eagle Ford, LLCJan 2020 to Jun 2022Silverbow Resources Oper, LLCJul 2022 to May 2026Crescent Energy Operating, LLCJun 2026 to now
Operators of this lease over timeSea Eagle Ford, LLC, Jan 2020 to Jun 2022; Silverbow Resources Oper, LLC, Jul 2022 to May 2026; Crescent Energy Operating, LLC, Jun 2026 to Jul 20262020202120222023202420252026Changed Jul 2022Changed Jun 2026Sea Eagle Ford, LLCJan 2020 to Jun 2022Silverbow Resources Oper, LLCJul 2022 to May 2026Crescent Energy Operating, LLCJun 2026 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

7 wells on this lease

Wells on SHANNON EFS
API numberWell no.Status
42-311-353931HActive
42-311-356902HActive
42-311-357453HActive
42-311-359164HActive
42-311-359175HActive
42-311-366836UHActive
42-311-366867UHActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Eastex Crude Company, LLCOilGathers50Jun 1, 2026–
Phillips 66 CompanyOilGathers50Jun 1, 2026–
Phillips 66 CompanyOilGathers100Jan 1, 2021Jun 1, 2026
Southcross Ccng Gathering Ltd.Casinghead gasGathers100May 1, 2016Jan 1, 2021
Southcross Marketing Company LTDCasinghead gasBuys100May 1, 2016Jan 1, 2021
Shell Trading (Us) CompanyOilGathers100Oct 1, 2019Jan 1, 2021
Trafigura Trading LLCOilGathers100Jul 1, 2018Oct 1, 2019

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

Who buys my oilOil price check

490.90 acres on the newest permit

  • Good to know

    The wells on this lease state different acreage

    The permits state between 442.65 and 523 acres. Use the acres from your own division order for the well you are paid on.

  • Good to know

    7 wells are listed on this lease

    Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

Check your decimal on this lease
Permits for Shannon Efs
API numberWell no.Acreson the permit
42-311-366867UH490.90
42-311-366836UH523
42-311-359164H523
42-311-359175H523
42-311-357453H523
42-311-356902H468.60
42-311-353931H442.65

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

Unit decimal checker

What Crescent Energy Company told investors it received

Crescent Energy Operating, LLC is linked to Crescent Energy Company (CRGY).
Realized prices reported by Crescent Energy Company
QuarterOil$ per bblFiling
Q1 2026$71.00SEC filing
Q4 2025$62.21SEC filing
Q3 2025$63.07SEC filing
Q2 2025$61.47SEC filing
Q1 2025$67.64SEC filing
Q4 2024$67.51SEC filing

SourceCrescent Energy Company quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for SHANNON EFS
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Crescent Energy4,6444,5763,3742,476470$80.46$2.89
Jun 2026Crescent Energy4,4914,8243,9642,948461$84.81$3.15
May 2026Silverbow Resources5,1725,0123,2302,245457$102.13$2.94
Apr 2026Silverbow Resources4,4704,5983,5812,0671,046$100.32$2.77
Mar 2026Silverbow Resources4,2734,1536,4763,8851,010$91.38$3.04
Feb 2026Silverbow Resources4,7034,9004,5222,699921$64.51$3.62
Jan 2026Silverbow Resources4,1444,0871,816722871$60.04$7.72
Dec 2025Silverbow Resources4,0494,0733,6891,3661,635$57.97$4.26
Nov 2025Silverbow Resources3,6013,5373,081667483$60.06$3.79
Oct 2025Silverbow Resources3,6583,5651,57266398$60.89$3.19
Sep 2025Silverbow Resources3,7283,5413,5231,935710$63.96$2.97
Aug 2025Silverbow Resources3,9394,0634,7523,028547$64.86$2.91
Jul 2025Silverbow Resources4,4624,4782,6221,647431$68.39$3.20
Jun 2025Silverbow Resources4,7934,8484,6623,263596$68.17$3.02
May 2025Silverbow Resources6,0645,9814,7023,554568$62.17$3.12
Apr 2025Silverbow Resources5,1915,2483,5021,7581,374$63.54$3.42
Mar 2025Silverbow Resources5,5465,4395,5353,7541,045$68.24$4.12
Feb 2025Silverbow Resources5,4395,6495,9933,8981,253$71.53$4.19
Jan 2025Silverbow Resources6,0756,0154,9002,7981,452$75.74$4.13
Dec 2024Silverbow Resources5,9185,8453,3992,296721$70.12$3.01
Nov 2024Silverbow Resources5,3925,6005,0223,4381,113$69.95$2.12
Oct 2024Silverbow Resources6,2025,87710,8157,5132,512$71.99$2.20
Sep 2024Silverbow Resources6,5426,59212,55610,3541,371$70.24$2.28
Aug 2024Silverbow Resources7,4057,88713,45811,2781,303$76.68$1.99
Jul 2024Silverbow Resources8,5618,67215,74613,919729$81.80$2.07
Jun 2024Silverbow Resources10,0899,88116,69614,1171,500$79.77$2.54
May 2024Silverbow Resources10,0259,8827,7266,436803$80.02$2.12
Apr 2024Silverbow Resources11,65311,74910,9659,364686$85.35$1.60
Mar 2024Silverbow Resources14,42214,49928,46023,6831,255$81.28$1.49
Feb 2024Silverbow Resources3,2142,8299,2295,0212,323$77.25$1.72
Jan 2024Silverbow Resources4,3474,6259,7355,9621,343$74.15$3.18
Dec 2023Silverbow Resources4,6654,8295,3142,0641,338$71.90$2.52
Nov 2023Silverbow Resources4,6974,82214,0903,7736,682$77.69$2.71
Oct 2023Silverbow Resources4,4804,43011,9036,1951,842$85.64$2.98
Sep 2023Silverbow Resources4,8005,15019,57111,8422,435$89.43$2.64
Aug 2023Silverbow Resources5,4555,55523,03113,9492,687$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

OperatorCrescent Energy Operating, LLCFieldEagleville (Eagle Ford-1)CountyMcMullen County

Crescent Energy Operating, LLC in McMullen County

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