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Texas oil lease

Producing

HEFFERNAN B UNIT

Heffernan B Unit is an oil lease in Atascosa County, Texas, operated by EOG Resources, Inc. in the Eagleville (Eagle Ford-1) field.

2 wells

9,921bbl oil, last 12 months−31% vs prior year
Operator
EOG Resources, Inc.
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-17113

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
4,843 mcf
Oil in Jul 2026
753 bbl

Production by month

Oil output fell 31% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 31% over the last 12 monthsMonthly oil production and gas for HEFFERNAN B UNIT, Aug 2023 to Jul 2026. Oil output fell 31% over the last 12 months. 9,921 bbl in the 12 months through Jul 2026, against 14,459 bbl in the 12 months before.Last 12 months: 9,921 bblbbl per monthmcf per month001,0001,0002,0002,0003,0003,0004,0004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 31% over the last 12 monthsMonthly oil production and gas for HEFFERNAN B UNIT, Aug 2023 to Jul 2026. Oil output fell 31% over the last 12 months. 9,921 bbl in the 12 months through Jul 2026, against 14,459 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0001,0002,0002,0003,0003,0004,0004,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Apr 2026 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 35.9% of the gas in Sep 2023.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Apr 2026 the lease's gas goes to a processing plant instead of lease fuelShare of HEFFERNAN B UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2026 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 35.9% of the gas in Sep 2023.Share of the lease’s gas by disposition code, per month0%50%100%Apr 2026: fuel to plantFlared 35.9%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Apr 2026 the lease's gas goes to a processing plant instead of lease fuelShare of HEFFERNAN B UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2026 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 35.9% of the gas in Sep 2023.Share of gas by disposition code0%50%100%Apr 26: fuel to plantFlared 35.9%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    71% · 3,415 mcf

  • Lease fuel (1)

    24% · 1,139 mcf

  • Flared (4)

    6.0% · 289 mcf

6.0% of the gas flared in the last 12 months. 29 months above 3%.

2 wells on this lease

Wells on HEFFERNAN B UNIT
API numberWell no.Status
42-013-347254HActive
42-013-347273HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Eog Resources Marketing LLCOilGathers100Apr 1, 2015–
Eog Resources, Inc.Casinghead gasBuys100Aug 14, 2013–
Williams Mlp Operating LLCCasinghead gasGathers100May 1, 2019–
Eog Resources, Inc.Casinghead gasGathers100Aug 14, 2013May 1, 2019

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

Who buys my oilOil price check

716.05 acres on the newest permit

Check your decimal on this lease
Permits for Heffernan B Unit
API numberWell no.Acreson the permit
42-013-347254H716.05
42-013-347273H716.05

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

Unit decimal checker

What EOG Resources, Inc. told investors it received

EOG Resources, Inc. is linked to EOG Resources, Inc. (EOG).
Realized prices reported by EOG Resources, Inc.
QuarterOil$ per bblFiling
Q2 2026$98.15SEC filing
Q1 2026$72.47SEC filing
Q3 2025$65.95SEC filing
Q2 2025$64.82SEC filing
Q1 2025$72.87SEC filing
Q3 2024$76.92SEC filing

SourceEOG Resources, Inc. quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for HEFFERNAN B UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202675373677661822$80.46$2.89
Jun 20261,0401,09685867330$84.81$3.15
May 20261,1901,08173454835$102.13$2.94
Apr 20261,1901,24942926634$100.32$2.77
Mar 20264783741272015$91.38$3.04
Feb 2026248366110011$64.51$3.62
Jan 20261,3291,27639527240$60.04$7.72
Dec 202534125497299$57.97$4.26
Nov 20251013474402$60.06$3.79
Oct 20252,0382,02385568656$60.89$3.19
Sep 20251,02375535926130$63.96$2.97
Aug 202519021859425$64.86$2.91
Jul 202528118227723910$68.39$3.20
Jun 20251,6131,8192,2572,06955$68.17$3.02
May 20251,8601,8232,9182,72768$62.17$3.12
Apr 20252,4672,3672,1251,85692$63.54$3.42
Mar 20252,0892,2171,00378961$68.24$4.12
Feb 20251,7601,88171249257$71.53$4.19
Jan 202570956021210227$75.74$4.13
Dec 202453337137526130$70.12$3.01
Nov 20243985382,2342,11622$69.95$2.12
Oct 20248547473,9943,76450$71.99$2.20
Sep 20247419323,4863,28954$70.24$2.28
Aug 20241,1541,1092,2512,04467$76.68$1.99
Jul 20247409171,2831,22239$81.80$2.07
Jun 20241,2391,1182,1312,01066$79.77$2.54
May 20242,1832,1972,9752,657116$80.02$2.12
Apr 20241,9962,0102,5512,257107$85.35$1.60
Mar 20242,1912,1131,8101,433145$81.28$1.49
Feb 20241,1311,1361,19393074$77.25$1.72
Jan 20242,4202,4961,4651,128140$74.15$3.18
Dec 20233,3713,2061,7091,373142$71.90$2.52
Nov 20239971,1261,02380632$77.69$2.71
Oct 20235713601214525$85.64$2.98
Sep 202380189792033$89.43$2.64
Aug 2023919924157037$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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This lease belongs to

OperatorEOG Resources, Inc.FieldEagleville (Eagle Ford-1)CountyAtascosa County

EOG Resources, Inc. in Atascosa County

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