Skip to content
Royalty Clerk

Texas gas well

Producing

HAVEMAN 01

Haveman 01 is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

39,442mcf gas, last 12 months+359% vs prior year
RRC lease
02-280393

Is your check right?

Check my statement

Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
3,502 bbl
Gas in Jul 2026
5,490 mcf

Production by month

Gas output rose 359% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 359% over the last 12 monthsMonthly gas production and oil for HAVEMAN 01, Aug 2023 to Jul 2026. Gas output rose 359% over the last 12 months. 39,442 mcf in the 12 months through Jul 2026, against 8,597 mcf in the 12 months before.Last 12 months: 39,442 mcfmcf per monthbbl per month002,0001004,0002006,0003008,00040010k500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 359% over the last 12 monthsMonthly gas production and oil for HAVEMAN 01, Aug 2023 to Jul 2026. Gas output rose 359% over the last 12 months. 39,442 mcf in the 12 months through Jul 2026, against 8,597 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0001004,0002006,0003008,00040010k500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

All of the gas went to a processing plant in the last 12 monthsShare of HAVEMAN 01 gas by disposition code each month, Aug 2023 to Jul 2026. All 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
All of the gas went to a processing plant in the last 12 monthsShare of HAVEMAN 01 gas by disposition code each month, Aug 2023 to Jul 2026. All 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.

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on HAVEMAN 01
API numberWell no.Status
42-255-3421505HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Mar 1, 2023–
Enterprise Crude Pipeline LLCCondensateGathers50Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasBuys100Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasGathers100Mar 1, 2023–
Gulfmark Energy, Inc.CondensateGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasBuys100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCCondensateGathers50Oct 1, 2019Oct 2, 2019
Enterprise Crude Oil LLCCondensateGathers25Oct 1, 2019Oct 2, 2019
Enterprise Crude Pipeline LLCCondensateGathers25Oct 1, 2019Oct 2, 2019

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

629.78 acres on the newest permit

Permits for Haveman 01
API numberWell no.Acreson the permit
42-255-3421505H629.78

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

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 HAVEMAN 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil4724725,4905,4900$80.46$2.89
Jun 2026Marathon Oil76768528520$84.81$3.15
May 2026Marathon Oil3443444,4774,4770$102.13$2.94
Apr 2026Marathon Oil3973973,7913,7910$100.32$2.77
Mar 2026Marathon Oil3013014,0914,0910$91.38$3.04
Feb 2026Marathon Oil3123123,8953,8950$64.51$3.62
Jan 2026Marathon Oil3873874,2464,2460$60.04$7.72
Dec 2025Marathon Oil3683684,0494,0490$57.97$4.26
Nov 2025Marathon Oil4204204,3364,3360$60.06$3.79
Oct 2025Marathon Oil46463253250$60.89$3.19
Sep 2025Marathon Oil1131138838830$63.96$2.97
Aug 2025Marathon Oil2662663,0073,0070$64.86$2.91
Jul 2025Marathon Oil73736296290$68.39$3.20
Jun 2025Marathon Oil86867267260$68.17$3.02
May 2025Marathon Oil82827447440$62.17$3.12
Apr 2025Marathon Oil82827387380$63.54$3.42
Mar 2025Marathon Oil97978258250$68.24$4.12
Feb 2025Marathon Oil68686526520$71.53$4.19
Jan 2025Marathon Oil83836026020$75.74$4.13
Dec 2024Marathon Oil81817577570$70.12$3.01
Nov 2024Marathon Oil85857627620$69.95$2.12
Oct 2024Marathon Oil89896956950$71.99$2.20
Sep 2024Marathon Oil68687217210$70.24$2.28
Aug 2024Marathon Oil85857467460$76.68$1.99
Jul 2024Marathon Oil80807507500$81.80$2.07
Jun 2024Marathon Oil97977657650$79.77$2.54
May 2024Marathon Oil1061067557550$80.02$2.12
Apr 2024Marathon Oil1001007527520$85.35$1.60
Mar 2024Marathon Oil1061067067060$81.28$1.49
Feb 2024Marathon Oil86867107100$77.25$1.72
Jan 2024Marathon Oil86867267260$74.15$3.18
Dec 2023Marathon Oil1031037047040$71.90$2.52
Nov 2023Marathon Oil89897297290$77.69$2.71
Oct 2023Marathon Oil1081087847840$85.64$2.98
Sep 2023Marathon Oil94947097090$89.43$2.64
Aug 2023Marathon Oil1001007367360$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?

Nearby

Leases within 10 km

Drilling permits within 10 km