Skip to content
Royalty Clerk

Texas oil lease

Producing

WINFIELD C UNIT

Winfield C Unit is an oil lease in La Salle County, Texas, operated by Javelin Energy Partners Mgmt LLC in the Eagleville (Eagle Ford-1) field.

3 wells

49,775bbl oil, last 12 months−53% vs prior year
Operator
Javelin Energy Partners Mgmt LLC
County
La Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16173

Is your check right?

Check my statement

Where it sits

This county

La Salle CountyLa SalleZavalaAtascosaMcMullenDimmitFrioLa Salle County
La Salle County
Gas, last 12 months
67,784 mcf
Oil in Jul 2026
2,339 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Javelin Energy Partners Mgmt LLC took over from Ridgemar Energy Operating, LLC in Feb 2025.

  • P-5

    The previous operator's P-5 registration is listed as delinquent (last P-5 filed Jun 3, 2025).

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 53% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 53% over the last 12 monthsMonthly oil production and gas for WINFIELD C UNIT, Aug 2023 to Jul 2026. Oil output fell 53% over the last 12 months. 49,775 bbl in the 12 months through Jul 2026, against 106,962 bbl in the 12 months before.Last 12 months: 49,775 bblbbl per monthmcf per month0010k5,00020k10k30k15k40k20kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 53% over the last 12 monthsMonthly oil production and gas for WINFIELD C UNIT, Aug 2023 to Jul 2026. Oil output fell 53% over the last 12 months. 49,775 bbl in the 12 months through Jul 2026, against 106,962 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k5,00020k10k30k15k40k20kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

91% of the gas went to a transmission line in the last 12 months

Flaring peaked at 29.6% of the gas in Jul 2026.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
91% of the gas went to a transmission line in the last 12 monthsShare of WINFIELD C UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 91% of the gas went to a transmission line in the last 12 months. Flaring peaked at 29.6% of the gas in Jul 2026.Share of the lease’s gas by disposition code, per month0%50%100%Flared 29.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
91% of the gas went to a transmission line in the last 12 monthsShare of WINFIELD C UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 91% of the gas went to a transmission line in the last 12 months. Flaring peaked at 29.6% of the gas in Jul 2026.Share of gas by disposition code0%50%100%Flared 29.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    91% · 61,500 mcf

  • Flared (4)

    6.7% · 4,525 mcf

  • Lease fuel (1)

    2.6% · 1,759 mcf

6.7% of the gas flared in the last 12 months. 20 months above 3%.

Who has run this lease

The operator changed 3 times, most recently in Feb 2025

Operators of this lease over timeCarrizo (Eagle Ford) LLC, Jan 2020 to Jan 2020; Callon (Eagle Ford) LLC, Feb 2020 to Jun 2023; Ridgemar Energy Operating, LLC, Jul 2023 to Jan 2025; Javelin Energy Partners Mgmt LLC, Feb 2025 to Jul 20262020202120222023202420252026Changed Feb 2020Changed Jul 2023Changed Feb 2025Carrizo (Eagle Ford) LLCJan 2020 to Jan 2020Callon (Eagle Ford) LLCFeb 2020 to Jun 2023Ridgemar Energy Operating, LLCJul 2023 to Jan 2025Javelin Energy Partners Mgmt…Feb 2025 to now
Operators of this lease over timeCarrizo (Eagle Ford) LLC, Jan 2020 to Jan 2020; Callon (Eagle Ford) LLC, Feb 2020 to Jun 2023; Ridgemar Energy Operating, LLC, Jul 2023 to Jan 2025; Javelin Energy Partners Mgmt LLC, Feb 2025 to Jul 20262020202120222023202420252026Changed Feb 2020Changed Jul 2023Changed Feb 2025Carrizo (Eagle Ford) LLCJan 2020 to Jan 2020Callon (Eagle Ford) LLCFeb 2020 to Jun 2023Ridgemar Energy Operating, LLCJul 2023 to Jan 2025Javelin Energy Partners Mgmt LLCFeb 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

3 wells on this lease

Wells on WINFIELD C UNIT
API numberWell no.Status
42-283-3319750HActive
42-283-3320051HShut-in
42-283-3752252HShut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Plains Pipeline L.p.OilGathers100Feb 1, 2025–
Dcp Operating Company, LPCasinghead gasGathers100Jan 1, 2023Feb 1, 2025
Dcp Operating Company, LPCasinghead gasBuys100Jan 1, 2023Feb 1, 2025
Eastex Crude Company, LLCOilGathers10Jan 1, 2023Feb 1, 2025
Ironwood Midst Energy Ptnrs LLCOilGathers90Jan 1, 2023Feb 1, 2025
Ironwood Midst Energy Ptnrs LLCCasinghead gasGathers100Dec 1, 2022Jan 1, 2023
Ironwood Midst Energy Ptnrs LLCCasinghead gasBuys100Dec 1, 2022Jan 1, 2023

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

Who buys my oilOil price check

644.30 acres on the newest permit

  • 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 Winfield C Unit
API numberWell no.Acreson the permit
42-283-3752252H644.30
42-283-3319750H644.30
42-283-3320051H644.30

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for WINFIELD C UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Javelin Energy2,3392,3613,9112,7181,158$80.46$2.89
Jun 2026Javelin Energy3,8433,8067,5787,118411$84.81$3.15
May 2026Javelin Energy3,4883,5495,1094,618459$102.13$2.94
Apr 2026Javelin Energy4,2884,3146,1015,673391$100.32$2.77
Mar 2026Javelin Energy5,8605,8586,1635,959170$91.38$3.04
Feb 2026Javelin Energy5,3135,2023,3853,134217$64.51$3.62
Jan 2026Javelin Energy2,5162,5352,6342,450110$60.04$7.72
Dec 2025Javelin Energy3,2483,2594,1213,856155$57.97$4.26
Nov 2025Javelin Energy4,5284,5546,8426,489214$60.06$3.79
Oct 2025Javelin Energy4,7304,6986,9646,196647$60.89$3.19
Sep 2025Javelin Energy4,5634,5636,9986,038550$63.96$2.97
Aug 2025Javelin Energy5,0595,1097,9787,25143$64.86$2.91
Jul 2025Javelin Energy5,1785,1046,4085,005704$68.39$3.20
Jun 2025Javelin Energy5,6175,6628,9378,062103$68.17$3.02
May 2025Javelin Energy6,4266,3998,3887,211418$62.17$3.12
Apr 2025Javelin Energy5,2695,2985,0984,304224$63.54$3.42
Mar 2025Javelin Energy6,7786,8129,9798,603185$68.24$4.12
Feb 2025Javelin Energy6,6496,6258,2486,986425$71.53$4.19
Jan 2025Ridgemar Energy8,0128,0179,3817,1171,292$75.74$4.13
Dec 2024Ridgemar Energy9,2399,33011,0029,775126$70.12$3.01
Nov 2024Ridgemar Energy10,40910,37511,42810,286103$69.95$2.12
Oct 2024Ridgemar Energy11,91611,90110,8129,73682$71.99$2.20
Sep 2024Ridgemar Energy14,07614,11212,21910,513542$70.24$2.28
Aug 2024Ridgemar Energy17,39317,39812,92511,210650$76.68$1.99
Jul 2024Ridgemar Energy20,18220,2438,9857,2731,091$81.80$2.07
Jun 2024Ridgemar Energy20,11420,09210,0368,582879$79.77$2.54
May 2024Ridgemar Energy25,27325,26111,7978,0793,149$80.02$2.12
Apr 2024Ridgemar Energy18,29318,0698,4147,7411$85.35$1.60
Mar 2024Ridgemar Energy19000$81.28$1.49
Feb 2024Ridgemar Energy317317000$77.25$1.72
Jan 2024Ridgemar Energy3914081,4051,3000$74.15$3.18
Dec 2023Ridgemar Energy5986124,1913,8950$71.90$2.52
Nov 2023Ridgemar Energy6466362,7462,5720$77.69$2.71
Oct 2023Ridgemar Energy6886832,8332,6590$85.64$2.98
Sep 2023Ridgemar Energy8408402,6182,4500$89.43$2.64
Aug 2023Ridgemar Energy8698682,7802,6610$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.

How to check your stub against this lease Checks stopped on this lease? See the likely reasons

Do your checks match this lease?

Check my statement

Nearby

This lease belongs to

OperatorJavelin Energy Partners Mgmt LLCFieldEagleville (Eagle Ford-1)CountyLa Salle County

Javelin Energy Partners Mgmt LLC in La Salle County

All Javelin Energy Partners Mgmt LLC leases →

Eagleville (Eagle Ford-1) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km