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Texas oil lease

Producing

RIVAS

Rivas is an oil lease in Bexar County, Texas, operated by Calfas Oil, LLC in the Somerset field.

4 wells

216bbl oil, last 12 months+13% vs prior year
Operator
Calfas Oil, LLC
County
Bexar County
Field
Somerset
RRC lease
01-11264

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Where it sits

This county

Bexar CountyBexarWilsonComalMedinaKendallHaysGuadalupeBanderaBexar County
Bexar County
Oil in Jul 2026
20 bbl
Reporting since
Jan 2020

Production by month

Oil output rose 13% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output rose 13% over the last 12 monthsMonthly oil production for RIVAS, Aug 2023 to Jul 2026. Oil output rose 13% over the last 12 months. 216 bbl in the 12 months through Jul 2026, against 192 bbl in the 12 months before.Last 12 months: 216 bblbbl per month020406080Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 13% over the last 12 monthsMonthly oil production for RIVAS, Aug 2023 to Jul 2026. Oil output rose 13% over the last 12 months. 216 bbl in the 12 months through Jul 2026, against 192 bbl in the 12 months before.Last 12 monthsbbl per month020406080Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

Who has run this lease

The operator changed 2 times, most recently in Nov 2023

Operators of this lease over timePetrosaurus, Inc., Jan 2020 to Aug 2022; Blackjack Operating L. L. C., Sep 2022 to Oct 2023; Calfas Oil, LLC, Nov 2023 to Jul 20262020202120222023202420252026Changed Sep 2022Changed Nov 2023Petrosaurus, Inc.Jan 2020 to Aug 2022Blackjack Operating L. L. C.Sep 2022 to Oct 2023Calfas Oil, LLCNov 2023 to now
Operators of this lease over timePetrosaurus, Inc., Jan 2020 to Aug 2022; Blackjack Operating L. L. C., Sep 2022 to Oct 2023; Calfas Oil, LLC, Nov 2023 to Jul 20262020202120222023202420252026Changed Sep 2022Changed Nov 2023Petrosaurus, Inc.Jan 2020 to Aug 2022Blackjack Operating L. L. C.Sep 2022 to Oct 2023Calfas Oil, LLCNov 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

4 wells on this lease

Wells on RIVAS
API numberWell no.Status
42-029-341092Active
42-029-341781Active
42-029-346164Active
42-029-346173Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Truth Resources, L.p.OilGathers34Nov 17, 2023–
Dorado Oil CompanyOilGathers33Nov 17, 2023–
Shell Trading (Us) CompanyOilGathers33Nov 17, 2023–
Ace Gathering, Inc.OilGathers50May 16, 2023Nov 17, 2023
Synergy Transfer, LLCOilGathers50May 16, 2023Nov 17, 2023
Ace Gathering, Inc.OilGathers100Sep 19, 2022May 16, 2023
Enterprise Crude Oil LLCOilGathers100Oct 21, 2019Sep 19, 2022
Gulfmark Energy, Inc.OilGathers100Jun 17, 2019Oct 21, 2019
Enterprise Crude Oil LLCOilGathers100May 1, 2010Jun 17, 2019

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

Who buys my oilOil price check

13 acres on the newest permit

The wells on this lease state different acreage

The permits state between 12 and 13 acres.

Permits for Rivas
API numberWell no.Acreson the permit
42-029-34616413
42-029-34617313
42-029-34178113
42-029-34109212

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

Unit decimal checker

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36 months, newest first

Ledger for RIVAS
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026Calfas Oil,200$80.46$2.89
Jun 2026Calfas Oil,180$84.81$3.15
May 2026Calfas Oil,170$102.13$2.94
Apr 2026Calfas Oil,160$100.32$2.77
Mar 2026Calfas Oil,340$91.38$3.04
Feb 2026Calfas Oil,100$64.51$3.62
Jan 2026Calfas Oil,10$60.04$7.72
Dec 2025Calfas Oil,22155$57.97$4.26
Nov 2025Calfas Oil,200$60.06$3.79
Oct 2025Calfas Oil,200$60.89$3.19
Sep 2025Calfas Oil,200$63.96$2.97
Aug 2025Calfas Oil,180$64.86$2.91
Jul 2025Calfas Oil,250$68.39$3.20
Jun 2025Calfas Oil,54164$68.17$3.02
May 2025Calfas Oil,50$62.17$3.12
Apr 2025Calfas Oil,10$63.54$3.42
Mar 2025Calfas Oil,10$68.24$4.12
Feb 2025Calfas Oil,10$71.53$4.19
Jan 2025Calfas Oil,40$75.74$4.13
Dec 2024Calfas Oil,70$70.12$3.01
Nov 2024Calfas Oil,70$69.95$2.12
Oct 2024Calfas Oil,120$71.99$2.20
Sep 2024Calfas Oil,500$70.24$2.28
Aug 2024Calfas Oil,250$76.68$1.99
Jul 2024Calfas Oil,100$81.80$2.07
Jun 2024Calfas Oil,100$79.77$2.54
May 2024Calfas Oil,100$80.02$2.12
Apr 2024Calfas Oil,150$85.35$1.60
Mar 2024Calfas Oil,18163$81.28$1.49
Feb 2024Calfas Oil,250$77.25$1.72
Jan 2024Calfas Oil,250$74.15$3.18
Dec 2023Calfas Oil,280$71.90$2.52
Nov 2023Calfas Oil,260$77.69$2.71
Oct 2023Blackjack Operating260$85.64$2.98
Sep 2023Blackjack Operating220$89.43$2.64
Aug 2023Blackjack Operating120$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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This lease belongs to

OperatorCalfas Oil, LLCFieldSomersetCountyBexar County

Calfas Oil, LLC in Bexar County

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Somerset field

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