Skip to content
Royalty Clerk

Texas oil lease

Producing

MEDINA JONAS UNIT C

Medina Jonas Unit C is an oil lease in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

5 wells

38,482bbl oil, last 12 months−17% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-10027

Is your check right?

Check my statement

Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
45,346 mcf
Oil in Jul 2026
2,284 bbl

Production by month

Oil output fell 17% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 17% over the last 12 monthsMonthly oil production and gas for MEDINA JONAS UNIT C, Aug 2023 to Jul 2026. Oil output fell 17% over the last 12 months. 38,482 bbl in the 12 months through Jul 2026, against 46,222 bbl in the 12 months before.Last 12 months: 38,482 bblbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010k10k12.5kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 17% over the last 12 monthsMonthly oil production and gas for MEDINA JONAS UNIT C, Aug 2023 to Jul 2026. Oil output fell 17% over the last 12 months. 38,482 bbl in the 12 months through Jul 2026, against 46,222 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010k10k12.5kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

71% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
71% of the gas went to a processing plant in the last 12 monthsShare of MEDINA JONAS UNIT C gas by disposition code each month, Aug 2023 to Jul 2026. 71% of the gas went to a processing plant in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
71% of the gas went to a processing plant in the last 12 monthsShare of MEDINA JONAS UNIT C gas by disposition code each month, Aug 2023 to Jul 2026. 71% of the gas went to a processing plant 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.

  • Processing plant (3)

    71% · 32,355 mcf

  • Lease fuel (1)

    27% · 12,403 mcf

  • Flared (4)

    1.3% · 588 mcf

1.3% of the gas flared in the last 12 months. No month above 3%.

5 wells on this lease

Wells on MEDINA JONAS UNIT C
API numberWell no.Status
42-255-322311HActive
42-255-354985HActive
42-255-354994HActive
42-255-355003HActive
42-255-355012HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Endeavor Crude, LLCOilGathers25Jan 1, 2024–
Enterprise Crude Oil LLCOilGathers25Nov 1, 2021–
Genesis Crude Oil, L.p.OilGathers25Jan 1, 2024–
Statewide Crude Inc.OilGathers25Jan 1, 2024–
Marathon Oil Ef LLCCasinghead gasBuys100Nov 1, 2021–
Marathon Oil Ef LLCCasinghead gasGathers100Nov 1, 2021–
Dks Transport LLCOilGathers25Nov 1, 2021Jan 1, 2024
Harvest Midstream CompanyOilGathers25Nov 1, 2021Jan 1, 2024
Trafigura Trading LLCOilGathers25Nov 1, 2021Jan 1, 2024
Enterprise Crude Oil LLCOilGathers20Jan 10, 2012Nov 1, 2021
Genesis Crude Oil, L.p.OilGathers10Jan 10, 2012Nov 1, 2021
Gulfmark Energy, Inc.OilGathers35Jan 10, 2012Nov 1, 2021

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

Who buys my oilOil price check

360 acres on the newest permit

Check your decimal on this lease
Permits for Medina Jonas Unit C
API numberWell no.Acreson the permit
42-255-354994H360
42-255-354985H360
42-255-355003H360
42-255-355012H360
42-255-322311H360

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 MEDINA JONAS UNIT C
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20262,2842,2972,8651,65132$80.46$2.89
Jun 20262,2612,2743,0391,97339$84.81$3.15
May 20262,9432,9562,2151,34627$102.13$2.94
Apr 20263,8083,7583,6472,48338$100.32$2.77
Mar 20261,6731,7101,7971,23831$91.38$3.04
Feb 20263,5203,5384,7423,34483$64.51$3.62
Jan 20264,4204,3835,8704,286141$60.04$7.72
Dec 20253,4043,4103,8532,90742$57.97$4.26
Nov 20253,3433,3483,7452,80644$60.06$3.79
Oct 20253,5143,5024,6883,49333$60.89$3.19
Sep 20253,6053,6054,1103,12718$63.96$2.97
Aug 20253,7073,7264,7753,70160$64.86$2.91
Jul 20253,7493,7344,0043,05939$68.39$3.20
Jun 20253,5663,5593,5212,67732$68.17$3.02
May 20253,4883,5343,7252,86634$62.17$3.12
Apr 20253,1423,0903,9103,03237$63.54$3.42
Mar 20253,4083,4165,2893,99233$68.24$4.12
Feb 20253,1973,2033,9613,00429$71.53$4.19
Jan 20254,0794,0737,2265,46359$75.74$4.13
Dec 20244,2274,2187,0015,43738$70.12$3.01
Nov 20244,0074,0047,8176,21139$69.95$2.12
Oct 20244,1674,1726,9265,55541$71.99$2.20
Sep 20244,1634,1677,5225,98852$70.24$2.28
Aug 20245,0295,0219,6807,71871$76.68$1.99
Jul 20244,6954,6948,6257,03364$81.80$2.07
Jun 20245,3235,32710,2988,60860$79.77$2.54
May 20245,3775,37210,9059,27557$80.02$2.12
Apr 20244,3954,3986,6135,54177$85.35$1.60
Mar 20245,2965,2877,9386,77236$81.28$1.49
Feb 20244,3484,3527,2875,63189$77.25$1.72
Jan 20242,4862,4815,0193,72560$74.15$3.18
Dec 20235,3395,33510,3017,46997$71.90$2.52
Nov 20234,6504,6527,7965,043104$77.69$2.71
Oct 20235,4345,42810,9688,17957$85.64$2.98
Sep 20234,5094,5338,9026,01657$89.43$2.64
Aug 20235,8375,84010,5747,83668$81.39$2.58

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

OperatorMarathon Oil Ef LLCFieldEagleville (Eagle Ford-2)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

All Marathon Oil Ef LLC leases →

Eagleville (Eagle Ford-2) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km