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Texas oil lease

Producing

BOLL-CALVERT UNIT FRO

Boll-Calvert Unit Fro is an oil lease in Frio County, Texas, operated by Exco Operating Company, LP in the Briscoe Ranch (Eagleford) field.

1 well

11,389bbl oil, last 12 months−19% vs prior year
RRC lease
01-19290

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Where it sits

This county

Frio CountyFrioZavalaAtascosaUvaldeMedinaBexarFrio County
Frio County
Gas, last 12 months
5,671 mcf
Oil in Jul 2026
919 bbl

Production by month

Oil output fell 19% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 19% over the last 12 monthsMonthly oil production and gas for BOLL-CALVERT UNIT FRO, Aug 2023 to Jul 2026. Oil output fell 19% over the last 12 months. 11,389 bbl in the 12 months through Jul 2026, against 14,033 bbl in the 12 months before.Last 12 months: 11,389 bblbbl per monthmcf per month005002501,0005001,5007502,0001,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 19% over the last 12 monthsMonthly oil production and gas for BOLL-CALVERT UNIT FRO, Aug 2023 to Jul 2026. Oil output fell 19% over the last 12 months. 11,389 bbl in the 12 months through Jul 2026, against 14,033 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005002501,0005001,5007502,0001,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

58% of the gas went to lease fuel in the last 12 months

Flaring peaked at 63.6% of the gas in Sep 2025.

  • Lease fuel (1)
  • Flared (4)
58% of the gas went to lease fuel in the last 12 monthsShare of BOLL-CALVERT UNIT FRO gas by disposition code each month, Aug 2023 to Jul 2026. 58% of the gas went to lease fuel in the last 12 months. Flaring peaked at 63.6% of the gas in Sep 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 63.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
58% of the gas went to lease fuel in the last 12 monthsShare of BOLL-CALVERT UNIT FRO gas by disposition code each month, Aug 2023 to Jul 2026. 58% of the gas went to lease fuel in the last 12 months. Flaring peaked at 63.6% of the gas in Sep 2025.Share of gas by disposition code0%50%100%Flared 63.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Lease fuel (1)

    58% · 3,299 mcf

  • Flared (4)

    42% · 2,372 mcf

41.8% of the gas flared in the last 12 months. 29 months above 3%.

1 well on this lease

Wells on BOLL-CALVERT UNIT FRO
API numberWell no.Status
42-163-341072HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Eastex Crude Company, LLCOilGathers100Jan 1, 2023–
Raider Marketing, LPCasinghead gasBuys100Jan 1, 2023–
Williams Mlp Operating LLCCasinghead gasGathers100Jan 1, 2023–
Eastex Crude CompanyOilGathers50Apr 12, 2018Jan 1, 2023
Paradigm Midstream Svcs-St, LLCOilGathers50Apr 12, 2018Jan 1, 2023

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

486.97 acres on the newest permit

Permits for Boll-Calvert Unit Fro
API numberWell no.Acreson the permit
42-163-341072H486.97

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

Estimate your royalty

36 months, newest first

Ledger for BOLL-CALVERT UNIT FRO
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202691977923600$80.46$2.89
Jun 20261,0341,11231500$84.81$3.15
May 202631115614700$102.13$2.94
Apr 20261,0731,27031500$100.32$2.77
Mar 20261,1051,11032600$91.38$3.04
Feb 20261,2051,13129400$64.51$3.62
Jan 20261,0691,1296340308$60.04$7.72
Dec 20251,4411,2916760377$57.97$4.26
Nov 202576158114040$60.06$3.79
Oct 20251,0121,1078700544$60.89$3.19
Sep 20251,0359528660551$63.96$2.97
Aug 20251,1099548780552$64.86$2.91
Jul 20251,1121,2608210495$68.39$3.20
Jun 20251,1101,1357220407$68.17$3.02
May 20251,2061,0945430217$62.17$3.12
Apr 20251,2761,3665310226$63.54$3.42
Mar 20251,2831,228363045$68.24$4.12
Feb 20251,2371,09927300$71.53$4.19
Jan 20255826344740195$75.74$4.13
Dec 20241,1881,2586950369$70.12$3.01
Nov 20241,1881,2917520437$69.95$2.12
Oct 20241,2751,1178200494$71.99$2.20
Sep 20241,2811,2677510443$70.24$2.28
Aug 20241,2951,3877530438$76.68$1.99
Jul 20241,0331,1004470242$81.80$2.07
Jun 20241,2361,2478080493$79.77$2.54
May 20241,3131,2787870461$80.02$2.12
Apr 20241,2601,2904600157$85.35$1.60
Mar 20241,3611,2854490123$81.28$1.49
Feb 20241,2821,5934700168$77.25$1.72
Jan 20241,3411,6064500128$74.15$3.18
Dec 20231,5301,442390077$71.90$2.52
Nov 20231,136976341092$77.69$2.71
Oct 20231,4171,4575230197$85.64$2.98
Sep 20231,3901,4425330218$89.43$2.64
Aug 20231,4551,4235050179$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

Exco Operating Company, LP in Frio County

All Exco Operating Company, LP leases →

Briscoe Ranch (Eagleford) field

All leases in this field →

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Drilling permits within 10 km