Skip to content
Royalty Clerk

Texas gas well

Producing

DERBY SOUTH C

Derby South C is a gas well in Frio County, Texas, operated by Trinity Operating (Usg), LLC in the Eagleville (Eagle Ford-1) field.

Gas well dossier

61,503mcf gas, last 12 months−8% vs prior year
Operator
Trinity Operating (Usg), LLC
County
Frio County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-297250

Is your check right?

Check my statement

Where it sits

This county

Frio CountyFrioZavalaAtascosaUvaldeMedinaBexarFrio County
Frio County
Oil, last 12 months
7,628 bbl
Gas in Jul 2026
4,545 mcf

Production by month

Gas output fell 8% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 8% over the last 12 monthsMonthly gas production and oil for DERBY SOUTH C, Aug 2023 to Jul 2026. Gas output fell 8% over the last 12 months. 61,503 mcf in the 12 months through Jul 2026, against 66,501 mcf in the 12 months before.Last 12 months: 61,503 mcfmcf per monthbbl per month002,0002504,0005006,0007508,0001,00010k1,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 8% over the last 12 monthsMonthly gas production and oil for DERBY SOUTH C, Aug 2023 to Jul 2026. Gas output fell 8% over the last 12 months. 61,503 mcf in the 12 months through Jul 2026, against 66,501 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0002504,0005006,0007508,0001,00010k1,250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Apr 2024 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 91.5% of the gas in Jun 2025.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Apr 2024 the lease's gas goes to a processing plant instead of lease fuelShare of DERBY SOUTH C gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 91.5% of the gas in Jun 2025.Share of the lease’s gas by disposition code, per month0%50%100%Apr 2024: fuel to plantFlared 91.5%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Apr 2024 the lease's gas goes to a processing plant instead of lease fuelShare of DERBY SOUTH C gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 91.5% of the gas in Jun 2025.Share of gas by disposition code0%50%100%Apr 24: fuel to plantFlared 91.5%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Flared (4)

    42% · 25,768 mcf

  • Processing plant (3)

    29% · 18,052 mcf

  • Lease fuel (1)

    29% · 17,683 mcf

41.9% of the gas flared in the last 12 months. 35 months above 3%.

Wells on this lease

No wells are linked to this lease in our data

Production is still reported at lease level.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Enterprise Crude Oil LLCCondensateGathers100Aug 7, 2019
Targa Frio Lasalle Pipeline LPGas-well gasBuys100Aug 7, 2019
Targa Frio Lasalle Pipeline LPGas-well gasGathers100Aug 7, 2019

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

Who buys my oilOil price check

440 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 Derby South C
API numberWell no.Acreson the permit
42-163-34168112H440

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for DERBY SOUTH C
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20265655404,5453313,466$80.46$2.89
Jun 20265335664,4568641,946$84.81$3.15
May 20264645874,7591,6271,391$102.13$2.94
Apr 20265665244,8012,525147$100.32$2.77
Mar 20266435655,0569333,626$91.38$3.04
Feb 20266906844,6151,2341,103$64.51$3.62
Jan 20265835495,2002224,676$60.04$7.72
Dec 20255896775,7531,8901,889$57.97$4.26
Nov 20256607305,5842,565871$60.06$3.79
Oct 20258137375,6852,6861,209$60.89$3.19
Sep 20256356745,5082,281857$63.96$2.97
Aug 20258878315,5418944,587$64.86$2.91
Jul 20257436995,4953,722462$68.39$3.20
Jun 20253824695,7284875,241$68.17$3.02
May 20257527065,6081,5882,006$62.17$3.12
Apr 20256766285,3451,3082,647$63.54$3.42
Mar 20256126775,2483,568169$68.24$4.12
Feb 20254395825,0973,298510$71.53$4.19
Jan 20259169084,9433,160640$75.74$4.13
Dec 20249738825,6873,758174$70.12$3.01
Nov 20246506345,5553,381223$69.95$2.12
Oct 20247918715,8433,575230$71.99$2.20
Sep 20245714325,9263,647275$70.24$2.28
Aug 20245266426,0263,506230$76.68$1.99
Jul 20246997906,6193,379347$81.80$2.07
Jun 20248097116,8975,962275$79.77$2.54
May 20241,0941,0648,0134,7451,384$80.02$2.12
Apr 20241,1391,1608,3695,335714$85.35$1.60
Mar 20241,1081,0417,86602,318$81.28$1.49
Feb 20247897165,6923,301433$77.25$1.72
Jan 20247167106,0052,922598$74.15$3.18
Dec 20236107236,1203,472380$71.90$2.52
Nov 20238588486,4033,856602$77.69$2.71
Oct 20236667716,6852,6971,711$85.64$2.98
Sep 20231,2141,1967,1563,75489$89.43$2.64
Aug 20231,0841,2117,2903,281551$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

OperatorTrinity Operating (Usg), LLCFieldEagleville (Eagle Ford-1)CountyFrio County

Trinity Operating (Usg), LLC in Frio County

All Trinity Operating (Usg), LLC leases →

Eagleville (Eagle Ford-1) field

All leases in this field →

New drilling permits in Frio County

Newest in the county: this lease has no coordinates.