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HARPER DEVONIAN UNIT

Harper Devonian Unit is an oil lease in Ector County, Texas, operated by Hilcorp Energy Company in the Harper (Devonian) field.

23 wells

27,841bbl oil, last 12 months+33% vs prior year
Operator
Hilcorp Energy Company
County
Ector County
Field
Harper (Devonian)
RRC lease
08-20609

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Where it sits

This county

Ector CountyEctorMartinMidlandAndrewsWinklerWardEctor County
Ector County
Gas, last 12 months
147,093 mcf
Oil in Jul 2026
1,779 bbl

Production by month

Oil output rose 33% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 33% over the last 12 monthsMonthly oil production and gas for HARPER DEVONIAN UNIT, Aug 2023 to Jul 2026. Oil output rose 33% over the last 12 months. 27,841 bbl in the 12 months through Jul 2026, against 20,911 bbl in the 12 months before.Last 12 months: 27,841 bblbbl per monthmcf per month001,00010k2,00020k3,00030k4,00040kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 33% over the last 12 monthsMonthly oil production and gas for HARPER DEVONIAN UNIT, Aug 2023 to Jul 2026. Oil output rose 33% over the last 12 months. 27,841 bbl in the 12 months through Jul 2026, against 20,911 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,00010k2,00020k3,00030k4,00040kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

All of the gas went to a transmission line in the last 12 months

  • Transmission line (2)
  • Flared (4)
All of the gas went to a transmission line in the last 12 monthsShare of HARPER DEVONIAN UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line 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 transmission line in the last 12 monthsShare of HARPER DEVONIAN UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line 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 May 2026

Operators of this lease over timeOXY USA WTP LP, Jan 2020 to Apr 2026; Hilcorp Energy Company, May 2026 to Jul 20262020202120222023202420252026Changed May 2026OXY USA WTP LPJan 2020 to Apr 2026Hilcorp Energy CompanyMay 2026 to now
Operators of this lease over timeOXY USA WTP LP, Jan 2020 to Apr 2026; Hilcorp Energy Company, May 2026 to Jul 20262020202120222023202420252026Changed May 2026OXY USA WTP LPJan 2020 to Apr 2026Hilcorp Energy CompanyMay 2026 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

23 wells on this lease

Wells on HARPER DEVONIAN UNIT
API numberWell no.Status
42-135-10293201Active
42-135-106281612Active
42-135-202392003Active
42-135-20325708GActive
42-135-20326709GActive
42-135-20327803GActive
42-135-203281613GActive
42-135-203622609Active
42-135-203671002Active
42-135-20550802Active
42-135-303221711Shut-in
42-135-320671805Active
42-135-418211903Active
42-135-41824710Active
42-135-42190614Shut-in
42-135-42191711Active
42-135-421921507Active
42-135-42247712Shut-in
42-135-43142616Active
42-135-43143714Active
42-135-43150715Active
42-135-84124613Active
42-135-841301001Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Anchor Crude Marketing, LLCOilGathers100Jul 1, 2024–
Dcp Operating Company, LPCasinghead gasBuys100Apr 1, 2017–
Dcp Operating Company, LPCasinghead gasGathers100Apr 1, 2017–
Bridger Transportation, LLCOilGathers50Aug 1, 2014Jul 1, 2024
Phillips 66 Pipeline LLCOilGathers50Jul 1, 2012Jul 1, 2024

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

Who buys my oilOil price check

3,720 acres on the newest permit

The wells on this lease state different acreage

The permits state between 161.23 and 4,176 acres.

45 wells are listed on this lease

Permits for Harper Devonian Unit
API numberWell no.Acreson the permit
42-135-3032217113,720
42-135-303221711G3,720
42-135-431437143,123
42-135-431507153,720
42-135-431426163,720
42-135-422477123,720
42-135-4219215073,720
42-135-421906143,720
42-135-421917113,720
42-135-418247103,720
42-135-4182119033,720
42-135-20326709G4,176

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for HARPER DEVONIAN UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Hilcorp Energy1,7791,75210,93710,9370$80.46$2.89
Jun 2026Hilcorp Energy1,0341,1384,5314,5310$84.81$3.15
May 2026Hilcorp Energy1,7021,643000$102.13$2.94
Apr 2026OXY USA2,4522,38413,29313,2930$100.32$2.77
Mar 2026OXY USA2,5502,53715,19815,1980$91.38$3.04
Feb 2026OXY USA2,6973,00613,07213,0720$64.51$3.62
Jan 2026OXY USA2,6882,50213,53213,5320$60.04$7.72
Dec 2025OXY USA2,7512,89213,37813,3780$57.97$4.26
Nov 2025OXY USA2,6362,51314,46514,4650$60.06$3.79
Oct 2025OXY USA2,8492,90418,40418,4040$60.89$3.19
Sep 2025OXY USA2,9002,71019,07519,0750$63.96$2.97
Aug 2025OXY USA1,8031,92611,20811,2080$64.86$2.91
Jul 2025OXY USA2,8192,87310,98410,9840$68.39$3.20
Jun 2025OXY USA1,0521,1127,3477,3470$68.17$3.02
May 2025OXY USA144411,2841,2840$62.17$3.12
Apr 2025OXY USA1,5461,64013,05113,0510$63.54$3.42
Mar 2025OXY USA2,2632,2074,9684,9680$68.24$4.12
Feb 2025OXY USA1,6731,7578,5968,5960$71.53$4.19
Jan 2025OXY USA2,0991,79310,08410,0840$75.74$4.13
Dec 2024OXY USA3824191,0891,0890$70.12$3.01
Nov 2024OXY USA1,4651,7516,9106,9100$69.95$2.12
Oct 2024OXY USA2,4312,20010,39210,3920$71.99$2.20
Sep 2024OXY USA2,0982,1149,1009,1000$70.24$2.28
Aug 2024OXY USA2,9393,11314,14213,787355$76.68$1.99
Jul 2024OXY USA1,5401,57710,47510,4750$81.80$2.07
Jun 2024OXY USA3,0652,94316,38316,3830$79.77$2.54
May 2024OXY USA2,6422,64518,07618,0760$80.02$2.12
Apr 2024OXY USA3,2903,38521,21721,2170$85.35$1.60
Mar 2024OXY USA3,1673,17023,18523,1850$81.28$1.49
Feb 2024OXY USA2,3692,58716,14916,1490$77.25$1.72
Jan 2024OXY USA3,3413,22526,16726,1670$74.15$3.18
Dec 2023OXY USA3,8003,64224,59124,5910$71.90$2.52
Nov 2023OXY USA3,0253,11422,92022,9200$77.69$2.71
Oct 2023OXY USA3,1523,06523,07023,0700$85.64$2.98
Sep 2023OXY USA2,4962,66526,82826,8280$89.43$2.64
Aug 2023OXY USA3,3303,12634,98634,9860$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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Nearby

This lease belongs to

OperatorHilcorp Energy CompanyFieldHarper (Devonian)CountyEctor County

Hilcorp Energy Company in Ector County

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Harper (Devonian) field

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Drilling permits within 10 km